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<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b6c3a3d2fbb0007823342/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">M<span class="_ _0"></span>IM<span class="_ _0"></span>O<span class="_ _1"> </span><span class="ff2">单<span class="_ _2"> </span>载<span class="_ _2"> </span>波<span class="_ _2"> </span>分<span class="_ _3"> </span>数<span class="_ _2"> </span>阶<span class="_ _3"> </span>傅<span class="_ _2"> </span>里<span class="_ _2"> </span>叶<span class="_ _2"> </span>域<span class="_ _3"> </span>均<span class="_ _2"> </span>衡<span class="_ _2"> </span>系<span class="_ _2"> </span>统<span class="_ _3"> </span>及</span></div><div class="t m0 x2 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">最<span class="_ _2"> </span>优<span class="_ _3"> </span>阶<span class="_ _2"> </span>次<span class="_ _2"> </span>选<span class="_ _2"> </span>择<span class="_ _3"> </span>方<span class="_ _2"> </span>法</div><div class="t m0 x3 h3 y3 ff3 fs1 fc0 sc0 ls0 ws0">陈恩庆<span class="_ _4"> </span><span class="ff4"><span class="_ _5"></span><span class="ff3">楚彩虹<span class="_ _4"> </span><span class="ff4"><span class="_ _5"></span><span class="ff3">王忠勇</span></span></span></span></div><div class="t m0 x4 h4 y4 ff4 fs2 fc0 sc0 ls0 ws0"><span class="ff2">郑<span class="_ _6"></span>州<span class="_ _6"></span>大<span class="_ _7"></span>学<span class="_ _6"></span>信<span class="_ _7"></span>息<span class="_ _6"></span>工<span class="_ _7"></span>程<span class="_ _6"></span>学<span class="_ _7"></span>院<span class="_ _8"> </span></span><span class="_ _9"></span><span class="ff2">河<span class="_ _6"></span>南<span class="_ _7"></span>郑<span class="_ _6"></span>州<span class="_ _2"> </span><span class="ff4"><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _6"></span></span></span></div><div class="t m0 x5 h5 y5 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="_ _b"> </span><span class="ff5">摘<span class="_ _b"> </span></span><span class="_ _b"> </span><span class="ff5">要<span class="_ _c"> </span></span><span class="_ _d"></span><span class="_ _b"> </span><span class="ff2"><span class="fc1 sc0">单</span><span class="fc1 sc0">载</span><span class="fc1 sc0">波</span><span class="fc1 sc0">频</span><span class="fc1 sc0">域</span><span class="fc1 sc0">均</span><span class="fc1 sc0">衡</span><span class="_ _e"></span></span><span class="fc1 sc0"></span><span class="_ _d"></span><span class="ff1"><span class="fc1 sc0">S</span><span class="_ _a"></span><span class="fc1 sc0">C</span><span class="_ _a"></span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _f"></span><span class="ff1"><span class="fc1 sc0">F</span><span class="_ _d"></span><span class="fc1 sc0">D</span><span class="fc1 sc0">E</span><span class="_ _6"></span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _10"></span><span class="ff2"><span class="fc1 sc0">技</span><span class="fc1 sc0">术</span><span class="fc1 sc0">可</span><span class="fc1 sc0">以</span><span class="fc1 sc0">有</span><span class="fc1 sc0">效</span><span class="fc1 sc0">地</span><span class="_ _6"></span><span class="fc1 sc0">克</span><span class="_ _6"></span><span class="fc1 sc0">服</span><span class="fc1 sc0">无</span><span class="_ _6"></span><span class="fc1 sc0">线</span><span class="_ _6"></span><span class="fc1 sc0">传</span><span class="_ _6"></span><span class="fc1 sc0">输</span><span class="fc1 sc0">中</span><span class="_ _6"></span><span class="fc1 sc0">的</span><span class="_ _6"></span><span class="fc1 sc0">多</span><span class="fc1 sc0">径</span><span class="_ _7"></span><span class="fc1 sc0">衰</span><span class="_ _6"></span><span class="fc1 sc0">落</span><span class="_ _8"> </span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _11"></span><span class="ff2"><span class="fc1 sc0">而</span><span class="_ _6"></span><span class="fc1 sc0">多</span><span class="_ _6"></span><span class="fc1 sc0">输</span><span class="_ _6"></span><span class="fc1 sc0">入</span><span class="_ _6"></span><span class="fc1 sc0">多</span><span class="_ _6"></span><span class="fc1 sc0">输</span><span class="_ _6"></span><span class="fc1 sc0">出</span><span class="_ _12"> </span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _d"></span><span class="ff1"><span class="fc1 sc0">M</span><span class="fc1 sc0">I</span><span class="_ _d"></span><span class="fc1 sc0">M</span><span class="fc1 sc0">O</span><span class="_ _6"></span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _a"></span><span class="ff2"><span class="fc1 sc0">能</span><span class="_ _6"></span><span class="fc1 sc0">大</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y6 ff2 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">大</span><span class="fc1 sc0">提</span><span class="fc1 sc0">高</span><span class="fc1 sc0">频</span><span class="fc1 sc0">谱</span><span class="fc1 sc0">利</span><span class="fc1 sc0">用</span><span class="fc1 sc0">率</span><span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">两者的结合已成<span class="_ _6"></span>为下<span class="_ _7"></span>一<span class="_ _6"></span>代<span class="_ _6"></span>无<span class="_ _6"></span>线<span class="_ _6"></span>通<span class="_ _6"></span>信<span class="_ _6"></span>系<span class="_ _6"></span>统<span class="_ _6"></span>上<span class="_ _6"></span>行<span class="_ _6"></span>链<span class="_ _6"></span>路<span class="_ _7"></span>的传<span class="_ _7"></span>输<span class="_ _6"></span>方<span class="_ _6"></span>案<span class="_ _8"> </span><span class="ff4"><span class="_ _11"></span><span class="ff2">然<span class="_ _6"></span>而<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">当<span class="_ _6"></span>无<span class="_ _6"></span>线<span class="_ _6"></span>信<span class="_ _7"></span>道<span class="_ _6"></span>是<span class="_ _6"></span>快<span class="_ _6"></span>速<span class="_ _6"></span>时<span class="_ _7"></span>变<span class="_ _6"></span>时<span class="_ _c"> </span><span class="ff4"></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y7 ff1 fs3 fc0 sc0 ls0 ws0">MI<span class="_ _d"></span>MO<span class="_ _b"> </span>SC<span class="_ _10"></span><span class="ff4"><span class="_ _d"></span><span class="ff1">F<span class="_ _d"></span>DE<span class="_ _12"> </span><span class="ff2">系统<span class="_ _6"></span>的频域信道矩阵将为<span class="_ _6"></span>非对角矩阵<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">形成严重<span class="_ _6"></span>的<span class="_ _6"></span>频域<span class="_ _6"></span>子<span class="_ _6"></span>信<span class="_ _6"></span>道间<span class="_ _6"></span>干<span class="_ _6"></span>扰<span class="_ _8"> </span><span class="ff4"><span class="_ _11"></span><span class="ff2">使系<span class="_ _6"></span>统<span class="_ _6"></span>性能<span class="_ _7"></span>急剧<span class="_ _7"></span>下<span class="_ _6"></span>降<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">针<span class="_ _6"></span>对<span class="_ _7"></span>这一</span></span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y8 ff2 fs3 fc0 sc0 ls0 ws0">问题<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">本文采用在分数阶傅里叶域均<span class="_ _6"></span>衡代替传统频<span class="_ _6"></span>域均<span class="_ _7"></span>衡<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">提<span class="_ _7"></span>出<span class="_ _b"> </span><span class="ff1">MI<span class="_ _d"></span>M<span class="_ _a"></span>O<span class="_ _b"> </span><span class="ff2">单<span class="_ _6"></span>载<span class="_ _6"></span>波<span class="_ _6"></span>分<span class="_ _6"></span>数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>域<span class="_ _6"></span>均<span class="_ _6"></span>衡<span class="_ _12"> </span><span class="ff4"><span class="_ _d"></span><span class="ff1">MI<span class="_ _d"></span>MO<span class="_ _2"> </span>S<span class="_ _10"></span>C<span class="ff4"><span class="_ _f"></span><span class="ff1">F<span class="_ _a"></span>r<span class="_ _10"></span>F<span class="_ _10"></span>DE<span class="_ _6"></span><span class="ff4"></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y9 ff2 fs3 fc0 sc0 ls0 ws0">系统<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">通过选择合适的分数阶傅里叶<span class="_ _6"></span>变换阶次<span class="_ _c"> </span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _13"></span><span class="ff2"><span class="fc1 sc0">实</span><span class="fc1 sc0">现</span><span class="fc1 sc0">分</span><span class="fc1 sc0">数</span><span class="fc1 sc0">阶</span><span class="fc1 sc0">傅</span><span class="fc1 sc0">里</span><span class="fc1 sc0">叶</span><span class="fc1 sc0">域</span><span class="fc1 sc0">信</span><span class="fc1 sc0">道</span><span class="fc1 sc0">矩</span><span class="_ _6"></span><span class="fc1 sc0">阵</span><span class="fc1 sc0">的</span><span class="fc1 sc0">近</span><span class="fc1 sc0">似</span><span class="fc1 sc0">对</span><span class="fc1 sc0">角</span><span class="fc1 sc0">化</span><span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">仿真结果<span class="_ _6"></span>表明<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">在快速时</span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 ya ff2 fs3 fc0 sc0 ls0 ws0">变信道下<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">本文提出的<span class="_ _0"> </span><span class="ff1">MI<span class="_ _d"></span>MO<span class="_ _3"> </span>S<span class="_ _a"></span>C<span class="ff4"><span class="_ _f"></span><span class="ff1">F<span class="_ _10"></span>r<span class="_ _a"></span>F<span class="_ _d"></span>DE<span class="_ _0"> </span><span class="ff2">系统比传统<span class="_ _0"> </span></span>MI<span class="_ _d"></span>MO<span class="_ _3"> </span>S<span class="_ _a"></span>C<span class="_ _a"></span><span class="ff4"><span class="_ _f"></span><span class="ff1">F<span class="_ _d"></span>DE<span class="_ _0"> </span><span class="ff2">具有更好的误码率性能<span class="_ _c"> </span><span class="ff4"></span></span></span></span></span></span></span></span></span></div><div class="t m0 x7 h5 yb ff5 fs3 fc0 sc0 ls0 ws0">关键词<span class="_ _c"> </span><span class="ff4"><span class="_ _c"> </span><span class="_ _b"> </span><span class="ff2">分数阶傅里叶变<span class="_ _6"></span>换<span class="_ _2"> </span></span><span class="_ _e"></span><span class="ff1">MI<span class="_ _d"></span>MO<span class="_ _0"> </span><span class="ff2">单载波<span class="_ _8"> </span><span class="ff4"><span class="_ _12"> </span></span>最优分<span class="_ _6"></span>数阶傅里叶变换阶次</span></span></span></div><div class="t m0 x7 h5 yc ff5 fs3 fc0 sc0 ls0 ws0">中图分类号<span class="_ _c"> </span><span class="ff4"><span class="_ _c"> </span><span class="_ _b"> </span><span class="ff1">T<span class="_ _10"></span>N<span class="_ _a"></span><span class="ff4"><span class="_ _a"></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _0"> </span><span class="_"> </span><span class="_"> </span><span class="_ _b"> </span><span class="ff5">文献标识码<span class="_ _c"> </span></span><span class="_ _c"> </span><span class="_ _b"> </span><span class="ff1">A<span class="_ _0"> </span></span><span class="_"> </span><span class="_"> </span><span class="_ _14"> </span><span class="ff2"><span class="fc1 sc0">滗</span><span class="_ _15"></span><span class="ff5">文章编号<span class="_ _8"> </span><span class="ff4"><span class="_ _c"> </span><span class="_ _b"> </span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _10"></span><span class="_ _f"></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _c"> </span><span class="_ _d"></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _16"></span><span class="_ _10"></span><span class="_ _10"></span><span class="_ _16"></span><span class="_ _a"></span></span></span></span></span></span></span></div><div class="t m0 x7 h5 yd ff5 fs3 fc0 sc0 ls0 ws0">电子学报<span class="_ _3"> </span><span class="ff6">U<span class="_ _a"></span>R<span class="_ _10"></span>L<span class="_ _b"> </span><span class="ff4"><span class="_ _0"> </span><span class="ff1">h<span class="_ _10"></span>tt<span class="_ _a"></span>p<span class="_ _3"> </span><span class="ff4"><span class="_ _9"></span><span class="_ _d"></span><span class="ff1">w<span class="_ _10"></span>ww<span class="_ _8"> </span><span class="ff4"><span class="_ _13"></span><span class="ff1">e<span class="_ _a"></span>j<span class="_ _10"></span>ou<span class="_ _a"></span>r<span class="_ _10"></span>na<span class="_ _10"></span>l<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff1">or<span class="_ _10"></span>g<span class="_ _8"> </span><span class="ff4"><span class="_ _11"></span><span class="ff1">c<span class="_ _10"></span>n<span class="_ _b"> </span><span class="ff4"><span class="_ _17"> </span><span class="ff6">D<span class="_ _a"></span>O<span class="_ _10"></span>I<span class="_ _3"> </span><span class="ff4"><span class="_ _e"></span><span class="_ _2"> </span><span class="_ _13"></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _e"></span><span class="_ _d"></span><span class="ff1">j<span class="_ _2"> </span><span class="ff4"><span class="_ _11"></span><span class="ff1">i<span class="_ _a"></span>s<span class="_ _10"></span>sn<span class="_ _2"> </span><span class="ff4"><span class="_ _18"></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _16"></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _8"> </span><span class="_ _13"></span><span class="_ _10"></span><span class="_ _10"></span><span class="_ _8"> </span><span class="_ _18"></span><span class="_ _a"></span><span class="_ _2"> </span><span class="_ _13"></span><span class="_ _10"></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x8 h6 ye ff7 fs4 fc0 sc0 ls0 ws0">M<span class="_ _10"></span>I<span class="_ _a"></span>MO<span class="_ _4"> </span>S<span class="_ _f"></span>i<span class="_ _6"></span>n<span class="_ _10"></span>g<span class="_ _d"></span>l<span class="_ _7"></span>e<span class="_ _f"></span><span class="ff4"><span class="_ _f"></span><span class="ff7">C<span class="_ _a"></span>a<span class="_ _d"></span>r<span class="_ _10"></span>r<span class="_ _10"></span>i<span class="_ _e"></span>e<span class="_ _f"></span>r<span class="_ _19"> </span>F<span class="_ _d"></span>r<span class="_ _6"></span>a<span class="_ _d"></span>c<span class="_ _10"></span>t<span class="_ _10"></span>i<span class="_ _7"></span>o<span class="_ _10"></span>na<span class="_ _16"></span>l<span class="_ _19"> </span>F<span class="_ _a"></span>o<span class="_ _d"></span>u<span class="_ _10"></span>r<span class="_ _d"></span>i<span class="_ _e"></span>e<span class="_ _f"></span>r<span class="_ _1a"> </span>D<span class="_ _a"></span>o<span class="_ _10"></span>m<span class="_ _a"></span>a<span class="_ _16"></span>i<span class="_ _6"></span>n<span class="_ _4"> </span>E<span class="_ _a"></span>q<span class="_ _d"></span>ua<span class="_ _16"></span>li<span class="_ _6"></span>za<span class="_ _f"></span>t<span class="_ _10"></span>i<span class="_ _6"></span>o<span class="_ _a"></span>n<span class="_ _4"> </span>S<span class="_ _d"></span>ys<span class="_ _d"></span>t<span class="_ _6"></span>e<span class="_ _d"></span>m<span class="_ _4"> </span>a<span class="_ _d"></span>n<span class="_ _10"></span>d</span></span></div><div class="t m0 x9 h7 yf ff7 fs4 fc0 sc0 ls0 ws0">O<span class="_ _10"></span>p<span class="_ _d"></span>t<span class="_ _10"></span>i<span class="_ _6"></span>ma<span class="_ _16"></span>l<span class="_ _19"> </span>O<span class="_ _d"></span>rde<span class="_ _f"></span>r<span class="_ _1b"> </span>S<span class="_ _10"></span>e<span class="_ _16"></span>l<span class="_ _e"></span>e<span class="_ _d"></span>c<span class="_ _d"></span>t<span class="_ _a"></span>io<span class="_ _a"></span>n<span class="_ _c"> </span>A<span class="_ _a"></span>lg<span class="_ _a"></span>o<span class="_ _d"></span>r<span class="_ _d"></span>i<span class="_ _6"></span>th<span class="_ _d"></span>m</div><div class="t m0 xa h8 y10 ff1 fs5 fc0 sc0 ls0 ws0">C<span class="_ _a"></span>H<span class="_ _d"></span>E<span class="_ _10"></span>N<span class="_ _c"> </span>E<span class="_ _a"></span>n<span class="ff4"><span class="_ _16"></span><span class="ff1">q<span class="_ _a"></span>i<span class="_ _a"></span>n<span class="_ _10"></span>g<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff1">C<span class="_ _10"></span>H<span class="_ _d"></span>U<span class="_ _c"> </span>Ca<span class="_ _10"></span>i<span class="ff4"><span class="_ _f"></span><span class="ff1">h<span class="_ _10"></span>on<span class="_ _d"></span>g<span class="_ _1d"> </span><span class="ff4"><span class="_ _5"></span><span class="ff1">W<span class="_ _10"></span>A<span class="_ _a"></span>N<span class="_ _d"></span>G<span class="_ _c"> </span>Zh<span class="_ _d"></span>on<span class="_ _10"></span>g<span class="ff4"><span class="_ _16"></span><span class="ff1">y<span class="_ _a"></span>on<span class="_ _d"></span>g</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 xb h4 y11 ff4 fs2 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="ff8">Sch<span class="_ _a"></span>ool<span class="_ _3"> </span>of<span class="_ _2"> </span>In<span class="_ _10"></span>fo<span class="_ _6"></span>r<span class="_ _a"></span>ma<span class="_ _a"></span>ti<span class="_ _a"></span>on<span class="_ _3"> </span>Eng<span class="_ _a"></span>in<span class="_ _a"></span>e<span class="_ _a"></span>erin<span class="_ _a"></span>g<span class="_ _3"> </span><span class="ff4"><span class="_ _d"></span><span class="ff8">Zh<span class="_ _10"></span>eng<span class="_ _a"></span>zh<span class="_ _a"></span>ou<span class="_ _3"> </span>Uni<span class="_ _10"></span>versit<span class="_ _a"></span>y<span class="_ _2"> </span><span class="ff4"><span class="_ _d"></span><span class="ff8">Zh<span class="_ _10"></span>eng<span class="_ _10"></span>z<span class="_ _6"></span>h<span class="_ _a"></span>ou<span class="_ _2"> </span><span class="ff4"><span class="_ _f"></span><span class="ff8">Hena<span class="_ _a"></span>n<span class="_ _b"> </span><span class="ff4"><span class="_ _a"></span><span class="_ _a"></span><span class="_ _3"> </span><span class="_ _d"></span><span class="ff8">Ch<span class="_ _a"></span>ina<span class="_ _6"></span><span class="ff4"></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x7 h5 y12 ff7 fs3 fc0 sc0 ls0 ws0">Ab<span class="_ _a"></span>s<span class="_ _d"></span>tra<span class="_ _d"></span>c<span class="_ _10"></span>t<span class="_ _2"> </span><span class="ff4"><span class="_ _d"></span><span class="_ _3"> </span><span class="ff9">S<span class="_ _a"></span>i<span class="_ _a"></span>n<span class="_ _10"></span>gl<span class="_ _10"></span>e<span class="ff4"><span class="_ _f"></span><span class="ff9">ca<span class="_ _10"></span>rr<span class="_ _a"></span>i<span class="_ _a"></span>e<span class="_ _a"></span>r<span class="_ _2"> </span>f<span class="_ _a"></span>r<span class="_ _a"></span>e<span class="_ _10"></span>qu<span class="_ _10"></span>e<span class="_ _a"></span>n<span class="_ _a"></span>c<span class="_ _10"></span>y<span class="_ _2"> </span>d<span class="_ _a"></span>o<span class="_ _10"></span>m<span class="_ _a"></span>a<span class="_ _10"></span>in<span class="_ _2"> </span>e<span class="_ _a"></span>q<span class="_ _10"></span>u<span class="_ _a"></span>a<span class="_ _a"></span>l<span class="_ _a"></span>i<span class="_ _a"></span>z<span class="_ _a"></span>a<span class="_ _10"></span>ti<span class="_ _a"></span>o<span class="_ _10"></span>n<span class="_ _8"> </span><span class="ff4"><span class="_ _a"></span><span class="ff9">S<span class="_ _d"></span>C<span class="_ _a"></span><span class="ff4"><span class="_ _f"></span><span class="ff9">F<span class="_ _10"></span>D<span class="_ _a"></span>E<span class="_ _6"></span><span class="ff4"><span class="_ _b"> </span></span>i<span class="_ _a"></span>s<span class="_ _3"> </span>a<span class="_ _a"></span>n<span class="_ _3"> </span>ef<span class="_ _a"></span>f<span class="_ _10"></span>ec<span class="_ _a"></span>t<span class="_ _10"></span>iv<span class="_ _a"></span>e<span class="_ _3"> </span>te<span class="_ _10"></span>ch<span class="_ _10"></span>n<span class="_ _a"></span>i<span class="_ _a"></span>q<span class="_ _10"></span>ue<span class="_ _b"> </span>to<span class="_ _3"> </span>c<span class="_ _a"></span>o<span class="_ _10"></span>pe<span class="_ _b"> </span>w<span class="_ _a"></span>i<span class="_ _a"></span>t<span class="_ _a"></span>h<span class="_ _b"> </span>m<span class="_ _a"></span>u<span class="_ _10"></span>lt<span class="_ _a"></span>i<span class="_ _10"></span><span class="ff4"><span class="_ _d"></span><span class="ff9">p<span class="_ _a"></span>a<span class="_ _a"></span>t<span class="_ _10"></span>h<span class="_ _2"> </span>f<span class="_ _a"></span>a<span class="_ _10"></span>di<span class="_ _10"></span>ng<span class="_ _3"> </span><span class="ff4"></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y13 ff9 fs3 fc0 sc0 ls0 ws0">M<span class="_ _a"></span>u<span class="_ _10"></span>lt<span class="_ _a"></span>i<span class="_ _d"></span><span class="ff4"><span class="_ _d"></span><span class="ff9">in<span class="_ _10"></span>p<span class="_ _10"></span>ut<span class="_ _3"> </span>M<span class="_ _10"></span>u<span class="_ _a"></span>l<span class="_ _a"></span>t<span class="_ _a"></span>i<span class="_ _a"></span><span class="ff4"><span class="_ _f"></span><span class="ff9">o<span class="_ _a"></span>u<span class="_ _a"></span>t<span class="_ _a"></span>p<span class="_ _10"></span>ut<span class="_ _8"> </span><span class="ff4"><span class="_ _10"></span><span class="ff9">M<span class="_ _10"></span>I<span class="_ _a"></span>M<span class="_ _10"></span>O<span class="ff4"><span class="_ _2"> </span></span>ca<span class="_ _10"></span>n<span class="_ _8"> </span>gr<span class="_ _a"></span>e<span class="_ _10"></span>at<span class="_ _a"></span>l<span class="_ _a"></span>y<span class="_ _2"> </span>i<span class="_ _a"></span>m<span class="_ _10"></span>pr<span class="_ _10"></span>ov<span class="_ _10"></span>e<span class="_ _8"> </span>th<span class="_ _10"></span>e<span class="_ _c"> </span>s<span class="_ _a"></span>p<span class="_ _a"></span>e<span class="_ _10"></span>ct<span class="_ _a"></span>r<span class="_ _10"></span>u<span class="_ _a"></span>m<span class="_ _2"> </span>u<span class="_ _a"></span>t<span class="_ _a"></span>i<span class="_ _a"></span>l<span class="_ _a"></span>i<span class="_ _a"></span>z<span class="_ _a"></span>a<span class="_ _10"></span>ti<span class="_ _a"></span>o<span class="_ _10"></span>n<span class="_ _8"> </span><span class="ff4"><span class="_ _11"></span><span class="ff9">T<span class="_ _a"></span>h<span class="_ _a"></span>e<span class="_ _2"> </span>co<span class="_ _10"></span>m<span class="_ _a"></span>b<span class="_ _10"></span>in<span class="_ _10"></span>at<span class="_ _a"></span>i<span class="_ _10"></span>on<span class="_ _2"> </span>of<span class="_ _2"> </span>th<span class="_ _10"></span>es<span class="_ _10"></span>e<span class="_ _c"> </span>t<span class="_ _a"></span>w<span class="_ _10"></span>o<span class="_ _8"> </span>te<span class="_ _a"></span>c<span class="_ _10"></span>hn<span class="_ _10"></span>iq<span class="_ _10"></span>u<span class="_ _a"></span>e<span class="_ _10"></span>s<span class="_ _c"> </span>h<span class="_ _a"></span>a<span class="_ _10"></span>s<span class="_ _c"> </span>be<span class="ff4"></span></span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y14 ff9 fs3 fc0 sc0 ls0 ws0">c<span class="_ _a"></span>o<span class="_ _10"></span>m<span class="_ _a"></span>e<span class="_ _2"> </span>t<span class="_ _10"></span>he<span class="_ _3"> </span>up<span class="_ _10"></span>li<span class="_ _10"></span>nk<span class="_ _3"> </span>tr<span class="_ _a"></span>a<span class="_ _10"></span>ns<span class="_ _d"></span>mi<span class="_ _10"></span>ss<span class="_ _10"></span>io<span class="_ _10"></span>n<span class="_ _2"> </span>s<span class="_ _a"></span>c<span class="_ _10"></span>he<span class="_ _10"></span>m<span class="_ _a"></span>e<span class="_ _2"> </span>f<span class="_ _10"></span>or<span class="_ _3"> </span>th<span class="_ _10"></span>e<span class="_ _2"> </span>n<span class="_ _a"></span>e<span class="_ _10"></span>xt<span class="_ _b"> </span>ge<span class="_ _10"></span>ne<span class="_ _10"></span>ra<span class="_ _a"></span>t<span class="_ _a"></span>i<span class="_ _10"></span>on<span class="_ _b"> </span>w<span class="_ _a"></span>i<span class="_ _a"></span>r<span class="_ _a"></span>e<span class="_ _10"></span>le<span class="_ _a"></span>s<span class="_ _10"></span>s<span class="_ _2"> </span>c<span class="_ _a"></span>o<span class="_ _10"></span>m<span class="_ _10"></span>m<span class="_ _a"></span>u<span class="_ _10"></span>ni<span class="_ _10"></span>ca<span class="_ _a"></span>t<span class="_ _a"></span>i<span class="_ _10"></span>on<span class="_ _2"> </span><span class="ff4"><span class="_ _13"></span><span class="ff9">W<span class="_ _10"></span>he<span class="_ _a"></span>r<span class="_ _10"></span>ea<span class="_ _10"></span>s<span class="_ _8"> </span><span class="ff4"><span class="_ _13"></span><span class="ff9">th<span class="_ _10"></span>e<span class="_ _2"> </span>p<span class="_ _a"></span>e<span class="_ _10"></span>rf<span class="_ _a"></span>o<span class="_ _10"></span>r<span class="_ _a"></span>m<span class="_ _10"></span>an<span class="_ _a"></span>c<span class="_ _10"></span>e<span class="_ _2"> </span>o<span class="_ _10"></span>f<span class="_ _3"> </span>MI<span class="_ _d"></span>M<span class="_ _a"></span>O<span class="_ _b"> </span>S<span class="_ _10"></span>C<span class="ff4"><span class="_ _f"></span><span class="ff9">F<span class="_ _10"></span>D<span class="_ _10"></span>E</span></span></span></span></span></span></div><div class="t m0 x6 h5 y15 ff9 fs3 fc0 sc0 ls0 ws0">s<span class="_ _a"></span>y<span class="_ _10"></span>s<span class="_ _a"></span>t<span class="_ _a"></span>e<span class="_ _a"></span>m<span class="_ _b"> </span>w<span class="_ _10"></span>ou<span class="_ _10"></span>ld<span class="_ _3"> </span>d<span class="_ _a"></span>e<span class="_ _a"></span>g<span class="_ _10"></span>ra<span class="_ _10"></span>de<span class="_ _3"> </span>a<span class="_ _2"> </span>lo<span class="_ _10"></span>t<span class="_ _2"> </span>un<span class="_ _10"></span>d<span class="_ _a"></span>e<span class="_ _a"></span>r<span class="_ _2"> </span>f<span class="_ _a"></span>a<span class="_ _a"></span>s<span class="_ _10"></span>t<span class="_ _8"> </span>t<span class="_ _a"></span>i<span class="_ _10"></span>me<span class="_ _10"></span><span class="ff4"><span class="_ _d"></span><span class="ff9">v<span class="_ _a"></span>a<span class="_ _10"></span>r<span class="_ _a"></span>y<span class="_ _a"></span>i<span class="_ _10"></span>ng<span class="_ _2"> </span>ch<span class="_ _10"></span>a<span class="_ _a"></span>n<span class="_ _10"></span>ne<span class="_ _10"></span>ls<span class="_ _2"> </span>be<span class="_ _10"></span>ca<span class="_ _10"></span>us<span class="_ _10"></span>e<span class="_ _8"> </span>of<span class="_ _2"> </span>s<span class="_ _a"></span>e<span class="_ _a"></span>v<span class="_ _10"></span>er<span class="_ _a"></span>e<span class="_ _2"> </span>s<span class="_ _a"></span>u<span class="_ _a"></span>b<span class="_ _10"></span>ch<span class="_ _10"></span>a<span class="_ _a"></span>n<span class="_ _a"></span>n<span class="_ _10"></span>el<span class="_ _2"> </span>in<span class="_ _10"></span>te<span class="_ _a"></span>r<span class="_ _a"></span>f<span class="_ _a"></span>e<span class="_ _10"></span>re<span class="_ _10"></span>nc<span class="_ _a"></span>e<span class="_ _2"> </span><span class="ff4"><span class="_ _11"></span><span class="ff9">T<span class="_ _a"></span>o<span class="_ _2"> </span>s<span class="_ _a"></span>o<span class="_ _10"></span>lv<span class="_ _10"></span>e<span class="_ _c"> </span>t<span class="_ _a"></span>h<span class="_ _a"></span>i<span class="_ _a"></span>s<span class="_ _2"> </span>p<span class="_ _a"></span>r<span class="_ _10"></span>ob<span class="_ _10"></span>le<span class="_ _10"></span>m<span class="_ _2"> </span><span class="ff4"><span class="_ _11"></span><span class="ff9">w<span class="_ _10"></span>e</span></span></span></span></span></span></div><div class="t m0 x6 h5 y16 ff9 fs3 fc0 sc0 ls0 ws0">p<span class="_ _a"></span>r<span class="_ _10"></span>op<span class="_ _10"></span>o<span class="_ _10"></span>se<span class="_ _2"> </span>t<span class="_ _a"></span>h<span class="_ _a"></span>e<span class="_ _b"> </span>M<span class="_ _10"></span>I<span class="_ _a"></span>M<span class="_ _d"></span>O<span class="_ _3"> </span>s<span class="_ _a"></span>i<span class="_ _a"></span>n<span class="_ _10"></span>g<span class="_ _a"></span>l<span class="_ _a"></span>e<span class="_ _a"></span><span class="ff4"><span class="_ _d"></span><span class="ff9">c<span class="_ _10"></span>ar<span class="_ _a"></span>r<span class="_ _a"></span>i<span class="_ _a"></span>e<span class="_ _10"></span>r<span class="_ _2"> </span>f<span class="_ _a"></span>r<span class="_ _a"></span>a<span class="_ _10"></span>ct<span class="_ _a"></span>i<span class="_ _a"></span>o<span class="_ _10"></span>n<span class="_ _a"></span>a<span class="_ _a"></span>l<span class="_ _b"> </span>F<span class="_ _a"></span>o<span class="_ _10"></span>ur<span class="_ _10"></span>ie<span class="_ _a"></span>r<span class="_ _b"> </span>d<span class="_ _a"></span>o<span class="_ _10"></span>m<span class="_ _a"></span>a<span class="_ _10"></span>in<span class="_ _b"> </span>e<span class="_ _a"></span>q<span class="_ _a"></span>u<span class="_ _10"></span>al<span class="_ _a"></span>i<span class="_ _a"></span>z<span class="_ _10"></span>at<span class="_ _a"></span>i<span class="_ _a"></span>o<span class="_ _10"></span>n<span class="_ _b"> </span>sy<span class="_ _10"></span>st<span class="_ _10"></span>em<span class="_ _3"> </span><span class="ff4"><span class="_ _10"></span><span class="ff9">M<span class="_ _a"></span>I<span class="_ _10"></span>M<span class="_ _10"></span>O<span class="_ _b"> </span>S<span class="_ _a"></span>C<span class="_ _d"></span><span class="ff4"><span class="_ _d"></span><span class="ff9">F<span class="_ _a"></span>r<span class="_ _10"></span>F<span class="_ _10"></span>D<span class="_ _a"></span>E<span class="_ _6"></span><span class="ff4"><span class="_ _3"> </span><span class="_ _13"></span><span class="ff9">T<span class="_ _a"></span>h<span class="_ _a"></span>e<span class="_ _b"> </span>eq<span class="_ _10"></span>u<span class="_ _a"></span>a<span class="_ _a"></span>l<span class="_ _10"></span>iz<span class="_ _a"></span>a<span class="_ _a"></span>t<span class="_ _a"></span>i<span class="_ _10"></span>on<span class="_ _b"> </span>i<span class="_ _a"></span>s<span class="_ _b"> </span>d<span class="_ _a"></span>o<span class="_ _a"></span>n<span class="_ _10"></span>e<span class="_ _3"> </span>in<span class="_ _b"> </span>t<span class="_ _a"></span>h<span class="_ _10"></span>e</span></span></span></span></span></span></span></span></div><div class="t m0 x6 h5 y17 ff9 fs3 fc0 sc0 ls0 ws0">fr<span class="_ _10"></span>ac<span class="_ _10"></span>ti<span class="_ _a"></span>o<span class="_ _10"></span>na<span class="_ _10"></span>l<span class="_ _2"> </span>F<span class="_ _10"></span>ou<span class="_ _10"></span>r<span class="_ _a"></span>i<span class="_ _a"></span>e<span class="_ _a"></span>r<span class="_ _2"> </span>d<span class="_ _10"></span>o<span class="_ _a"></span>m<span class="_ _10"></span>ai<span class="_ _10"></span>n<span class="_ _2"> </span>in<span class="_ _10"></span>s<span class="_ _a"></span>te<span class="_ _10"></span>ad<span class="_ _3"> </span>o<span class="_ _a"></span>f<span class="_ _3"> </span>F<span class="_ _a"></span>o<span class="_ _a"></span>u<span class="_ _10"></span>r<span class="_ _a"></span>ie<span class="_ _10"></span>r<span class="_ _2"> </span>do<span class="_ _d"></span>ma<span class="_ _10"></span>in<span class="_ _8"> </span><span class="ff4"><span class="_ _13"></span><span class="ff9">T<span class="_ _a"></span>h<span class="_ _10"></span>r<span class="_ _a"></span>o<span class="_ _10"></span>ug<span class="_ _10"></span>h<span class="_ _2"> </span>s<span class="_ _a"></span>e<span class="_ _a"></span>l<span class="_ _a"></span>e<span class="_ _a"></span>c<span class="_ _10"></span>ti<span class="_ _a"></span>n<span class="_ _10"></span>g<span class="_ _2"> </span>th<span class="_ _10"></span>e<span class="_ _2"> </span>o<span class="_ _a"></span>p<span class="_ _10"></span>ti<span class="_ _a"></span>m<span class="_ _10"></span>a<span class="_ _a"></span>l<span class="_ _2"> </span>fr<span class="_ _10"></span>ac<span class="_ _10"></span>ti<span class="_ _a"></span>o<span class="_ _10"></span>na<span class="_ _10"></span>l<span class="_ _8"> </span>F<span class="_ _a"></span>o<span class="_ _10"></span>ur<span class="_ _10"></span>ie<span class="_ _a"></span>r<span class="_ _2"> </span>tr<span class="_ _10"></span>an<span class="_ _10"></span>sf<span class="_ _10"></span>o<span class="_ _a"></span>r<span class="_ _10"></span>m<span class="_ _2"> </span>or<span class="_ _10"></span>d<span class="_ _a"></span>e<span class="_ _a"></span>r<span class="_ _8"> </span><span class="ff4"><span class="_ _11"></span><span class="ff9">th<span class="_ _10"></span>e<span class="_ _8"> </span>fr<span class="_ _a"></span>a<span class="_ _10"></span>ct<span class="_ _a"></span>i<span class="_ _a"></span>o<span class="_ _10"></span>na<span class="_ _10"></span>l</span></span></span></span></div><div class="t m0 x6 h5 y18 ff9 fs3 fc0 sc0 ls0 ws0">F<span class="_ _10"></span>ou<span class="_ _10"></span>r<span class="_ _a"></span>ie<span class="_ _10"></span>r<span class="_ _8"> </span>do<span class="_ _10"></span>m<span class="_ _a"></span>a<span class="_ _10"></span>in<span class="_ _b"> </span>c<span class="_ _a"></span>h<span class="_ _10"></span>an<span class="_ _10"></span>ne<span class="_ _10"></span>l<span class="_ _b"> </span>m<span class="_ _a"></span>a<span class="_ _a"></span>t<span class="_ _a"></span>r<span class="_ _a"></span>i<span class="_ _a"></span>x<span class="_ _b"> </span>c<span class="_ _a"></span>a<span class="_ _a"></span>n<span class="_ _0"> </span>be<span class="_ _b"> </span>a<span class="_ _a"></span>p<span class="_ _10"></span>pr<span class="_ _10"></span>o<span class="_ _a"></span>x<span class="_ _10"></span>im<span class="_ _10"></span>a<span class="_ _a"></span>te<span class="_ _10"></span>ly<span class="_ _b"> </span>d<span class="_ _10"></span>ia<span class="_ _a"></span>g<span class="_ _10"></span>o<span class="_ _a"></span>n<span class="_ _a"></span>a<span class="_ _10"></span>li<span class="_ _a"></span>z<span class="_ _a"></span>e<span class="_ _10"></span>d<span class="_ _8"> </span><span class="ff4"><span class="_ _13"></span><span class="ff9">Si<span class="_ _10"></span>m<span class="_ _a"></span>u<span class="_ _10"></span>la<span class="_ _a"></span>t<span class="_ _a"></span>i<span class="_ _10"></span>on<span class="_ _b"> </span>r<span class="_ _a"></span>e<span class="_ _10"></span>su<span class="_ _10"></span>lt<span class="_ _a"></span>s<span class="_ _b"> </span>s<span class="_ _10"></span>ho<span class="_ _d"></span>w<span class="_ _3"> </span>t<span class="_ _a"></span>h<span class="_ _a"></span>a<span class="_ _10"></span>t<span class="_ _3"> </span>o<span class="_ _a"></span>u<span class="_ _a"></span>r<span class="_ _b"> </span>p<span class="_ _a"></span>r<span class="_ _10"></span>o<span class="_ _a"></span>p<span class="_ _10"></span>os<span class="_ _10"></span>ed<span class="_ _0"> </span>sy<span class="_ _10"></span>st<span class="_ _10"></span>e<span class="_ _a"></span>m<span class="_ _b"> </span>c<span class="_ _a"></span>a<span class="_ _a"></span>n<span class="_ _b"> </span>i<span class="_ _a"></span>m<span class="_ _10"></span>p<span class="_ _a"></span>r<span class="_ _a"></span>o<span class="_ _10"></span>v<span class="_ _a"></span>e<span class="_ _b"> </span>th<span class="_ _10"></span>e</span></span></div><div class="t m0 x6 h5 y19 ff9 fs3 fc0 sc0 ls0 ws0">p<span class="_ _a"></span>e<span class="_ _a"></span>r<span class="_ _10"></span>fo<span class="_ _10"></span>r<span class="_ _a"></span>m<span class="_ _10"></span>a<span class="_ _a"></span>n<span class="_ _a"></span>c<span class="_ _a"></span>e<span class="_ _2"> </span>c<span class="_ _10"></span>o<span class="_ _a"></span>m<span class="_ _10"></span>p<span class="_ _a"></span>ar<span class="_ _10"></span>ed<span class="_ _b"> </span>wi<span class="_ _10"></span>th<span class="_ _3"> </span>th<span class="_ _10"></span>e<span class="_ _2"> </span>M<span class="_ _10"></span>I<span class="_ _a"></span>M<span class="_ _10"></span>O<span class="_ _3"> </span>S<span class="_ _a"></span>C<span class="_ _10"></span><span class="ff4"><span class="_ _d"></span><span class="ff9">F<span class="_ _10"></span>D<span class="_ _a"></span>E<span class="_ _3"> </span>s<span class="_ _a"></span>y<span class="_ _10"></span>st<span class="_ _a"></span>e<span class="_ _10"></span>m<span class="_ _2"> </span>i<span class="_ _a"></span>n<span class="_ _2"> </span>f<span class="_ _a"></span>a<span class="_ _10"></span>st<span class="_ _3"> </span>ti<span class="_ _a"></span>m<span class="_ _10"></span>e<span class="_ _a"></span><span class="ff4"><span class="_ _f"></span><span class="ff9">va<span class="_ _10"></span>ry<span class="_ _10"></span>in<span class="_ _10"></span>g<span class="_ _2"> </span>c<span class="_ _a"></span>h<span class="_ _a"></span>a<span class="_ _10"></span>nn<span class="_ _10"></span>e<span class="_ _a"></span>l<span class="_ _a"></span>s<span class="_ _2"> </span><span class="ff4"></span></span></span></span></span></div><div class="t m0 x7 h5 y1a ff7 fs3 fc0 sc0 ls0 ws0">Ke<span class="_ _d"></span>y<span class="_ _2"> </span>w<span class="_ _a"></span>o<span class="_ _d"></span>rds<span class="_ _b"> </span><span class="ff4"><span class="_ _d"></span><span class="_ _3"> </span><span class="ff9">f<span class="_ _a"></span>r<span class="_ _a"></span>a<span class="_ _a"></span>c<span class="_ _10"></span>ti<span class="_ _a"></span>o<span class="_ _10"></span>na<span class="_ _10"></span>l<span class="_ _2"> </span>F<span class="_ _a"></span>o<span class="_ _10"></span>ur<span class="_ _10"></span>ie<span class="_ _a"></span>r<span class="_ _2"> </span>t<span class="_ _a"></span>r<span class="_ _a"></span>a<span class="_ _a"></span>n<span class="_ _10"></span>sf<span class="_ _10"></span>o<span class="_ _a"></span>r<span class="_ _10"></span>m<span class="_ _2"> </span><span class="ff4"><span class="_ _13"></span><span class="ff9">M<span class="_ _a"></span>I<span class="_ _10"></span>M<span class="_ _10"></span>O<span class="_ _2"> </span>s<span class="_ _a"></span>i<span class="_ _a"></span>n<span class="_ _10"></span>gl<span class="_ _10"></span>e<span class="ff4"><span class="_ _f"></span><span class="ff9">ca<span class="_ _10"></span>rr<span class="_ _a"></span>i<span class="_ _a"></span>e<span class="_ _a"></span>r<span class="_ _3"> </span><span class="ff4"><span class="_ _11"></span><span class="ff9">o<span class="_ _a"></span>p<span class="_ _10"></span>ti<span class="_ _10"></span>ma<span class="_ _10"></span>l<span class="_ _2"> </span>fr<span class="_ _a"></span>a<span class="_ _a"></span>c<span class="_ _10"></span>ti<span class="_ _a"></span>o<span class="_ _10"></span>na<span class="_ _10"></span>l<span class="_ _2"> </span>F<span class="_ _a"></span>o<span class="_ _10"></span>ur<span class="_ _10"></span>ie<span class="_ _a"></span>r<span class="_ _2"> </span>t<span class="_ _a"></span>r<span class="_ _a"></span>a<span class="_ _10"></span>ns<span class="_ _10"></span>f<span class="_ _a"></span>o<span class="_ _a"></span>r<span class="_ _10"></span>m<span class="_ _2"> </span>o<span class="_ _a"></span>r<span class="_ _10"></span>de<span class="_ _10"></span>r</span></span></span></span></span></span></span></span></div><div class="t m0 xc h3 y1b ff6 fs1 fc0 sc0 ls0 ws0">1<span class="_ _3"> </span><span class="ff4"><span class="_ _8"> </span><span class="ff5">引言</span></span></div><div class="t m0 xd h9 y1c ff4 fs6 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="_ _b"> </span><span class="ff1">MI<span class="_ _d"></span>M<span class="_ _a"></span>O<span class="_ _b"> </span><span class="ff2">技术<span class="_ _6"></span>采用<span class="_ _6"></span>多<span class="_ _6"></span>根发<span class="_ _6"></span>射<span class="_ _6"></span>和接<span class="_ _6"></span>收<span class="_ _6"></span>天线<span class="_ _1d"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">可<span class="_ _6"></span>以<span class="_ _6"></span>充分<span class="_ _6"></span>利</span></span></span></span></div><div class="t m0 xc h9 y1d ff2 fs6 fc0 sc0 ls0 ws0">用空域信道资源<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">在不<span class="_ _6"></span>提<span class="_ _6"></span>高<span class="_ _6"></span>发<span class="_ _6"></span>射<span class="_ _6"></span>功<span class="_ _6"></span>率<span class="_ _7"></span>和<span class="_ _6"></span>带<span class="_ _6"></span>宽<span class="_ _7"></span>的<span class="_ _6"></span>前<span class="_ _6"></span>提<span class="_ _7"></span>下<span class="_ _c"> </span><span class="ff4"></span></span></span></div><div class="t m0 xc ha y1e ff2 fs6 fc0 sc0 ls0 ws0">极大地提高系<span class="_ _6"></span>统<span class="_ _7"></span>的<span class="_ _6"></span>信<span class="_ _6"></span>道<span class="_ _7"></span>容<span class="_ _6"></span>量<span class="_ _6"></span>和<span class="_ _7"></span>频<span class="_ _6"></span>谱<span class="_ _6"></span>利<span class="_ _7"></span>用<span class="_ _7"></span>率</div><div class="t m0 xe hb y1f ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _0"> </span><span class="_ _1e"> </span><span class="_ _6"></span></div><div class="t m0 xf h9 y1e ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _13"></span><span class="ff2">此<span class="_ _7"></span>外<span class="_ _c"> </span><span class="ff4"></span></span></div><div class="t m0 xc h9 y20 ff2 fs6 fc0 sc0 ls0 ws0">单载波频域均衡<span class="_ _e"></span><span class="ff4"><span class="_ _10"></span><span class="ff1">S<span class="_ _a"></span>C<span class="_ _10"></span><span class="ff4"><span class="_ _f"></span><span class="ff1">F<span class="_ _10"></span>D<span class="_ _a"></span>E<span class="_ _6"></span><span class="ff4"><span class="_ _10"></span><span class="ff2">系<span class="_ _6"></span>统<span class="_ _6"></span>可<span class="_ _6"></span>以<span class="_ _6"></span>很<span class="_ _6"></span>好<span class="_ _6"></span>地<span class="_ _6"></span>消<span class="_ _6"></span>除<span class="_ _6"></span>多<span class="_ _7"></span>径<span class="_ _6"></span>传</span></span></span></span></span></span></div><div class="t m0 xc h9 y21 ff2 fs6 fc0 sc0 ls0 ws0">输影响<span class="_ _c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">而且具有<span class="_ _6"></span>比<span class="_ _6"></span>正<span class="_ _7"></span>交<span class="_ _6"></span>频<span class="_ _6"></span>分<span class="_ _6"></span>复<span class="_ _7"></span>用<span class="_ _12"></span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _10"></span><span class="ff1"><span class="fc1 sc0">O</span><span class="_ _a"></span><span class="fc1 sc0">F</span><span class="_ _d"></span><span class="fc1 sc0">D</span><span class="_ _d"></span><span class="fc1 sc0">M</span><span class="_ _e"></span><span class="ff4"><span class="ff2">系统<span class="_ _6"></span>更<span class="_ _7"></span>低<span class="_ _6"></span>的</span></span></span></span></span></span></div><div class="t m0 xc ha y22 ff2 fs6 fc0 sc0 ls0 ws0">峰均功率比</div><div class="t m0 x10 hb y23 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _7"></span></div><div class="t m0 x11 h9 y22 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _18"></span><span class="ff2">因此<span class="_ _c"> </span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _11"></span><span class="ff1"><span class="fc1 sc0">S</span><span class="_ _10"></span><span class="fc1 sc0">C</span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _16"></span><span class="ff1"><span class="fc1 sc0">F</span><span class="_ _d"></span><span class="fc1 sc0">D</span><span class="fc1 sc0">E</span><span class="_ _b"> </span><span class="ff2"><span class="fc1 sc0">和</span><span class="_ _b"> </span></span><span class="fc1 sc0">M</span><span class="fc1 sc0">I</span><span class="_ _d"></span><span class="fc1 sc0">M</span><span class="_ _a"></span><span class="fc1 sc0">O</span><span class="_ _3"> </span><span class="ff2"><span class="fc1 sc0">的</span><span class="_ _6"></span><span class="fc1 sc0">结</span><span class="_ _6"></span><span class="fc1 sc0">合</span><span class="_ _6"></span><span class="fc1 sc0">已</span><span class="_ _7"></span><span class="fc1 sc0">被</span><span class="_ _6"></span><span class="fc1 sc0">采</span><span class="_ _6"></span><span class="fc1 sc0">纳</span></span></span></span></span></span></span></div><div class="t m0 xc h9 y24 ff2 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">为</span><span class="fc1 sc0">新</span><span class="_ _7"></span><span class="fc1 sc0">一</span><span class="_ _6"></span><span class="fc1 sc0">代</span><span class="_ _6"></span><span class="fc1 sc0">无</span><span class="_ _7"></span><span class="fc1 sc0">线</span><span class="_ _6"></span><span class="fc1 sc0">通</span><span class="_ _6"></span><span class="fc1 sc0">信</span><span class="_ _2"> </span><span class="ff1"><span class="fc1 sc0">L</span><span class="_ _10"></span><span class="fc1 sc0">T</span><span class="fc1 sc0">E</span><span class="_ _d"></span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _d"></span><span class="ff1"><span class="fc1 sc0">a</span><span class="_ _10"></span><span class="fc1 sc0">d</span><span class="_ _10"></span><span class="fc1 sc0">v</span><span class="fc1 sc0">a</span><span class="_ _a"></span><span class="fc1 sc0">n</span><span class="_ _10"></span><span class="fc1 sc0">c</span><span class="fc1 sc0">e</span><span class="_ _10"></span><span class="fc1 sc0">d</span><span class="_ _3"> </span><span class="ff2"><span class="fc1 sc0">系</span><span class="_ _6"></span><span class="fc1 sc0">统</span><span class="_ _7"></span><span class="fc1 sc0">的</span><span class="_ _6"></span><span class="fc1 sc0">上</span><span class="_ _6"></span><span class="fc1 sc0">行</span><span class="_ _6"></span><span class="fc1 sc0">链</span><span class="_ _7"></span><span class="fc1 sc0">路</span><span class="_ _6"></span><span class="fc1 sc0">传</span><span class="_ _7"></span><span class="fc1 sc0">输</span></span></span></span></span></div><div class="t m0 xc h9 y25 ff2 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">标</span><span class="fc1 sc0">准</span><span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">然而在未来的城<span class="_ _6"></span>市<span class="_ _6"></span>智<span class="_ _6"></span>能<span class="_ _6"></span>交<span class="_ _6"></span>通<span class="_ _6"></span>系<span class="_ _7"></span>统<span class="_ _3"> </span><span class="ff4"><span class="_ _9"></span><span class="ff2">高<span class="_ _7"></span>速<span class="_ _6"></span>列<span class="_ _6"></span>车<span class="_ _6"></span>通<span class="_ _7"></span>信</span></span></span></span></div><div class="t m0 x12 h9 y26 ff2 fs6 fc0 sc0 ls0 ws0">系统及卫星通信系统等应用场合<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">通信收发双方的相对</span></span></div><div class="t m0 x12 h9 y27 ff2 fs6 fc0 sc0 ls0 ws0">移动速度非常快<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">将产<span class="_ _6"></span>生<span class="_ _6"></span>较<span class="_ _6"></span>大<span class="_ _6"></span>的<span class="_ _6"></span>多<span class="_ _7"></span>普<span class="_ _6"></span>勒<span class="_ _6"></span>频<span class="_ _6"></span>移<span class="_ _1d"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">给<span class="_ _6"></span>接<span class="_ _7"></span>收<span class="_ _6"></span>端</span></span></span></span></div><div class="t m0 x12 h9 y28 ff2 fs6 fc0 sc0 ls0 ws0">性能带来很大影响<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">因<span class="_ _6"></span>此<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">研<span class="_ _6"></span>究<span class="_ _6"></span>高<span class="_ _6"></span>速<span class="_ _7"></span>移<span class="_ _6"></span>动<span class="_ _6"></span>情<span class="_ _7"></span>况<span class="_ _6"></span>下<span class="_ _6"></span>的<span class="_ _6"></span>无<span class="_ _7"></span>线</span></span></span></span></div><div class="t m0 x12 h9 y29 ff2 fs6 fc0 sc0 ls0 ws0">通信技术具有较大的实用价值<span class="_ _1c"> </span><span class="ff4"></span></div><div class="t m0 x13 h9 y2a ff2 fs6 fc0 sc0 ls0 ws0">目<span class="_ _a"></span>前的<span class="_ _8"> </span><span class="ff1">MI<span class="_ _d"></span>M<span class="_ _a"></span>O<span class="_ _1d"> </span>S<span class="_ _10"></span>C<span class="ff4"><span class="_ _16"></span><span class="ff1">F<span class="_ _d"></span>DE<span class="_ _2"> </span><span class="ff2">系<span class="_ _e"></span>统<span class="_ _e"></span>接<span class="_ _e"></span>收<span class="_ _e"></span>端<span class="_ _e"></span>在<span class="_ _7"></span>频<span class="_ _e"></span>域<span class="_ _e"></span>进<span class="_ _e"></span>行<span class="_ _e"></span>均</span></span></span></span></div><div class="t m0 x12 h9 y2b ff2 fs6 fc0 sc0 ls0 ws0">衡<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">当信道在一个块周<span class="_ _6"></span>期<span class="_ _6"></span>内<span class="_ _6"></span>是<span class="_ _6"></span>不<span class="_ _6"></span>变<span class="_ _7"></span>的<span class="_ _6"></span>或<span class="_ _6"></span>者<span class="_ _6"></span>是<span class="_ _7"></span>慢<span class="_ _6"></span>时<span class="_ _6"></span>变<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">频</span></span></span></span></div><div class="t m0 x12 h9 y2c ff2 fs6 fc0 sc0 ls0 ws0">移均衡可以获得良<span class="_ _6"></span>好的<span class="_ _6"></span>性<span class="_ _6"></span>能<span class="_ _1d"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">但<span class="_ _6"></span>是<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">当<span class="_ _7"></span>信<span class="_ _6"></span>道<span class="_ _6"></span>在<span class="_ _7"></span>一<span class="_ _6"></span>个<span class="_ _6"></span>块<span class="_ _6"></span>周</span></span></span></span></div><div class="t m0 x12 h9 y2d ff2 fs6 fc0 sc0 ls0 ws0">期<span class="_ _a"></span>内具有时变性<span class="_ _c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">其<span class="_ _7"></span>频<span class="_ _6"></span>域<span class="_ _6"></span>信<span class="_ _7"></span>道<span class="_ _6"></span>矩<span class="_ _6"></span>阵<span class="_ _6"></span>不<span class="_ _7"></span>再<span class="_ _6"></span>是<span class="_ _6"></span>对<span class="_ _7"></span>角<span class="_ _6"></span>阵</span></span></div><div class="t m0 x14 hb y2e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _7"></span></div><div class="t m0 x15 h9 y2d ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _18"></span><span class="ff2">非</span></div><div class="t m0 x12 ha y2f ff2 fs6 fc0 sc0 ls0 ws0">对角部分会产生严重的子信道间干扰</div><div class="t m0 x16 hb y30 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _7"></span></div><div class="t m0 x17 h9 y2f ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _18"></span><span class="ff2">系统的性能下</span></div><div class="t m0 x12 h9 y31 ff2 fs6 fc0 sc0 ls0 ws0">降<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">文献<span class="_ _7"></span><span class="ff4"><span class="_ _d"></span><span class="_ _7"></span><span class="_ _10"></span><span class="ff2">首次<span class="_ _6"></span>将<span class="_ _6"></span>分<span class="_ _6"></span>数<span class="_ _6"></span>阶傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _7"></span>变<span class="_ _6"></span>换<span class="_ _6"></span>应<span class="_ _7"></span>用<span class="_ _6"></span>到<span class="_ _6"></span>多<span class="_ _6"></span>载<span class="_ _7"></span>波<span class="_ _6"></span>系</span></span></span></span></div><div class="t m0 xc h4 y32 ff2 fs2 fc0 sc0 ls0 ws0">收<span class="_ _6"></span>稿<span class="_ _7"></span>日<span class="_ _6"></span>期<span class="_ _8"> </span><span class="ff4"><span class="_ _11"></span><span class="_ _a"></span><span class="_ _f"></span><span class="_ _d"></span><span class="_ _a"></span><span class="_ _3"> </span><span class="_ _9"></span><span class="ff2">修<span class="_ _7"></span>回<span class="_ _6"></span>日<span class="_ _7"></span>期<span class="_ _2"> </span><span class="ff4"><span class="_ _9"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _f"></span><span class="_ _f"></span><span class="_ _3"> </span><span class="_ _20"></span><span class="ff2">责<span class="_ _6"></span>任<span class="_ _7"></span>编<span class="_ _6"></span>辑<span class="_ _8"> </span><span class="ff4"><span class="_ _9"></span><span class="ff2">孙<span class="_ _7"></span>瑶</span></span></span></span></span></span></div><div class="t m0 xc h4 y33 ff2 fs2 fc0 sc0 ls0 ws0">基<span class="_ _6"></span>金<span class="_ _7"></span>项<span class="_ _6"></span>目<span class="_ _8"> </span><span class="ff4"><span class="_ _9"></span><span class="ff2">国<span class="_ _7"></span>家<span class="_ _6"></span>自<span class="_ _7"></span>然<span class="_ _6"></span>科<span class="_ _7"></span>学<span class="_ _6"></span>基<span class="_ _7"></span>金<span class="_ _e"></span><span class="ff4"><span class="_ _10"></span><span class="ff1">No<span class="_ _2"> </span><span class="ff4"><span class="_ _21"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _3"> </span><span class="_ _9"></span><span class="ff1">No<span class="_ _3"> </span><span class="ff4"><span class="_ _21"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _3"> </span><span class="_ _21"></span><span class="ff1">No<span class="_ _2"> </span><span class="ff4"><span class="_ _11"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _3"> </span><span class="_ _21"></span><span class="ff1">No<span class="_ _2"> </span><span class="ff4"><span class="_ _21"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _a"></span><span class="_ _6"></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x18 h4 y34 ff4 fs2 fc0 sc0 ls0 ws0"></div><div class="t m0 x19 h4 y35 ff2 fs2 fc0 sc0 ls0 ws0">第<span class="_ _0"> </span><span class="ff4"><span class="_ _0"> </span></span>期</div><div class="t m0 x1a h4 y36 ff4 fs2 fc0 sc0 ls0 ws0"><span class="_ _a"></span><span class="_ _a"></span><span class="_ _b"> </span><span class="ff2">年<span class="_ _0"> </span></span><span class="_ _b"> </span><span class="ff2">月</span></div><div class="t m0 x1b h4 y35 ff2 fs2 fc0 sc0 ls0 ws0">电<span class="_ _b"> </span><span class="ff4"><span class="_ _1d"> </span><span class="_ _3"> </span></span>子<span class="_ _b"> </span><span class="ff4"><span class="_ _4"> </span><span class="_ _b"> </span></span>学<span class="_ _b"> </span><span class="ff4"><span class="_ _1d"> </span><span class="_ _2"> </span></span>报</div><div class="t m0 x1c hc y36 ff1 fs2 fc0 sc0 ls0 ws0">AC<span class="_ _a"></span>TA<span class="_ _3"> </span>E<span class="_ _a"></span>LE<span class="_ _a"></span>CTR<span class="_ _a"></span>O<span class="_ _a"></span>NI<span class="_ _a"></span>CA<span class="_ _b"> </span>SINIC<span class="_ _a"></span>A</div><div class="t m0 x1d h4 y35 ff1 fs2 fc0 sc0 ls0 ws0">Vol<span class="_ _3"> </span><span class="ff4"><span class="_ _21"></span><span class="_ _0"> </span><span class="_ _b"> </span><span class="ff1">No<span class="_ _3"> </span></span><span class="_ _21"></span></span></div><div class="t m0 x1e h4 y36 ff1 fs2 fc0 sc0 ls0 ws0">N<span class="_ _a"></span>ov<span class="_ _2"> </span><span class="ff4"><span class="_ _10"></span><span class="_ _b"> </span><span class="_ _a"></span><span class="_ _a"></span></span></div><div class="t m0 x1f h4 y34 ff4 fs2 fc0 sc0 ls0 ws0"></div></div><div class="pi" data-data='{"ctm":[1.893528,0.000000,0.000000,1.893528,0.000000,0.000000]}'></div></div>
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<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b6c3a3d2fbb0007823342/bg2.jpg"><div class="t m0 xc h9 y37 ff2 fs6 fc0 sc0 ls0 ws0">统中<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">文献<span class="_ _1e"> </span><span class="ff4"><span class="_ _a"></span><span class="_ _e"></span><span class="ff2">将<span class="_ _7"></span>分<span class="_ _e"></span>数<span class="_ _7"></span>阶<span class="_ _e"></span>傅<span class="_ _7"></span>里<span class="_ _7"></span>叶<span class="_ _e"></span>变<span class="_ _7"></span>换<span class="_ _e"></span>应<span class="_ _7"></span>用<span class="_ _e"></span>到<span class="_ _7"></span>单<span class="_ _e"></span>载<span class="_ _7"></span>波<span class="_ _e"></span>系</span></span></span></span></div><div class="t m0 xc h9 y38 ff2 fs6 fc0 sc0 ls0 ws0">统<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">但并未对<span class="_ _7"></span>时<span class="_ _6"></span>变<span class="_ _7"></span>信<span class="_ _6"></span>道<span class="_ _7"></span>下<span class="_ _7"></span>的<span class="_ _6"></span>单<span class="_ _7"></span>载<span class="_ _7"></span>波<span class="_ _6"></span>分<span class="_ _7"></span>数<span class="_ _7"></span>阶<span class="_ _7"></span>傅<span class="_ _7"></span>里<span class="_ _7"></span>叶<span class="_ _7"></span>域<span class="_ _7"></span>均</span></span></div><div class="t m0 xc h9 y39 ff2 fs6 fc0 sc0 ls0 ws0">衡系统<span class="_ _7"></span><span class="ff4"><span class="_ _10"></span><span class="ff1">S<span class="_ _10"></span>C<span class="ff4"><span class="_ _16"></span><span class="ff1">F<span class="_ _a"></span>r<span class="_ _10"></span>F<span class="_ _d"></span>DE<span class="_ _6"></span><span class="ff4"><span class="_ _a"></span><span class="ff2">进行<span class="_ _7"></span>讨<span class="_ _6"></span>论<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">针<span class="_ _6"></span>对<span class="_ _6"></span>快<span class="_ _6"></span>速<span class="_ _6"></span>时<span class="_ _7"></span>变<span class="_ _6"></span>信<span class="_ _6"></span>道<span class="_ _1d"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">本<span class="_ _7"></span>文</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 xc ha y3a ff2 fs6 fc0 sc0 ls0 ws0">在接收端采取分数阶傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>变<span class="_ _6"></span>换<span class="_ _6"></span>代<span class="_ _6"></span>替<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>变<span class="_ _6"></span>换实<span class="_ _6"></span>现</div><div class="t m0 xc h9 y3b ff2 fs6 fc0 sc0 ls0 ws0">分数阶傅里叶域均衡<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">并<span class="_ _6"></span>对<span class="_ _6"></span>均<span class="_ _6"></span>衡<span class="_ _6"></span>的复<span class="_ _6"></span>杂<span class="_ _6"></span>度<span class="_ _6"></span>进<span class="_ _6"></span>行<span class="_ _6"></span>了<span class="_ _6"></span>分<span class="_ _6"></span>析<span class="_ _1c"> </span><span class="ff4"></span></span></span></div><div class="t m0 xc ha y3c ff2 fs6 fc0 sc0 ls0 ws0">给出了与时变信道相匹<span class="_ _6"></span>配<span class="_ _6"></span>的<span class="_ _6"></span>最<span class="_ _6"></span>优<span class="_ _6"></span>分<span class="_ _6"></span>数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>变换<span class="_ _6"></span>阶</div><div class="t m0 xc h9 y3d ff2 fs6 fc0 sc0 ls0 ws0">次<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">通过选择最优分数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>变<span class="_ _6"></span>换<span class="_ _6"></span>阶<span class="_ _6"></span>次<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">可<span class="_ _6"></span>以<span class="_ _6"></span>有效<span class="_ _6"></span>地</span></span></span></span></div><div class="t m0 xc h9 y3e ff2 fs6 fc0 sc0 ls0 ws0">减少子信道间干扰的影响<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">从而提高系统误码率性能<span class="_ _1c"> </span><span class="ff4"></span></span></span></div><div class="t m0 x5 ha y3f ff2 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">分</span><span class="fc1 sc0">数</span><span class="fc1 sc0">阶</span><span class="fc1 sc0">傅</span><span class="_ _7"></span><span class="fc1 sc0">里</span><span class="_ _7"></span><span class="fc1 sc0">叶</span><span class="_ _7"></span><span class="fc1 sc0">变</span><span class="_ _7"></span><span class="fc1 sc0">换</span><span class="_ _7"></span><span class="fc1 sc0">是</span><span class="_ _6"></span><span class="fc1 sc0">一</span><span class="_ _7"></span><span class="fc1 sc0">种</span><span class="_ _7"></span><span class="fc1 sc0">新</span><span class="_ _7"></span><span class="fc1 sc0">兴</span><span class="_ _7"></span><span class="fc1 sc0">时</span><span class="_ _e"></span><span class="fc1 sc0">频</span><span class="_ _6"></span><span class="fc1 sc0">分</span><span class="_ _e"></span><span class="fc1 sc0">析</span><span class="_ _7"></span><span class="fc1 sc0">工</span><span class="_ _7"></span><span class="fc1 sc0">具</span></div><div class="t m0 x20 hb y40 ff4 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0"></span><span class="_ _10"></span><span class="fc1 sc0"></span><span class="_ _7"></span><span class="fc1 sc0"></span></div><div class="t m0 x21 h9 y3f ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 xc h9 y41 ff2 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">并</span><span class="fc1 sc0">且</span><span class="fc1 sc0">其</span><span class="fc1 sc0">可</span><span class="fc1 sc0">以</span><span class="_ _6"></span><span class="fc1 sc0">采</span><span class="_ _6"></span><span class="fc1 sc0">用</span><span class="_ _7"></span><span class="fc1 sc0">快</span><span class="_ _7"></span><span class="fc1 sc0">速</span><span class="_ _6"></span><span class="fc1 sc0">算</span><span class="_ _7"></span><span class="fc1 sc0">法</span><span class="_ _7"></span><span class="fc1 sc0">实</span><span class="_ _6"></span><span class="fc1 sc0">现</span><span class="_ _1c"> </span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _13"></span><span class="ff2"><span class="fc1 sc0">运</span><span class="_ _7"></span><span class="fc1 sc0">算</span><span class="_ _7"></span><span class="fc1 sc0">量</span><span class="_ _7"></span><span class="fc1 sc0">与</span><span class="_ _7"></span><span class="fc1 sc0">普</span><span class="_ _7"></span><span class="fc1 sc0">通</span><span class="_ _7"></span><span class="fc1 sc0">的</span><span class="_ _7"></span><span class="fc1 sc0">快</span><span class="_ _6"></span><span class="fc1 sc0">速</span></span></span></div><div class="t m0 xc ha y42 ff2 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">傅</span><span class="fc1 sc0">里</span><span class="fc1 sc0">叶</span><span class="fc1 sc0">变</span><span class="fc1 sc0">换</span><span class="fc1 sc0">相</span><span class="fc1 sc0">近</span></div><div class="t m0 x22 hb y43 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _6"></span></div><div class="t m0 x23 h9 y42 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _13"></span><span class="ff2">因<span class="_ _6"></span>此<span class="_ _6"></span>近<span class="_ _7"></span>年<span class="_ _7"></span>来<span class="_ _6"></span>在<span class="_ _7"></span>光<span class="_ _6"></span>学<span class="_ _3"> </span><span class="ff4"><span class="_ _20"></span><span class="ff2">通<span class="_ _7"></span>信<span class="_ _3"> </span><span class="ff4"><span class="_ _16"></span><span class="ff2">雷<span class="_ _6"></span>达<span class="_ _7"></span>信</span></span></span></span></span></div><div class="t m0 xc ha y44 ff2 fs6 fc0 sc0 ls0 ws0">号<span class="_ _a"></span>处理等<span class="_ _6"></span>领<span class="_ _7"></span>域<span class="_ _6"></span>受<span class="_ _7"></span>到<span class="_ _7"></span>越<span class="_ _6"></span>来<span class="_ _7"></span>越<span class="_ _6"></span>多<span class="_ _7"></span>的<span class="_ _7"></span>关<span class="_ _6"></span>注<span class="_ _7"></span>和<span class="_ _7"></span>广<span class="_ _6"></span>泛<span class="_ _7"></span>应<span class="_ _7"></span>用</div><div class="t m0 xf hb y45 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _b"> </span><span class="_ _9"></span><span class="_ _6"></span></div><div class="t m0 x21 h9 y44 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 xc ha y46 ff2 fs6 fc0 sc0 ls0 ws0">如果将信号的傅里叶变<span class="_ _6"></span>换<span class="_ _6"></span>看<span class="_ _6"></span>成<span class="_ _6"></span>是<span class="_ _6"></span>信<span class="_ _6"></span>号<span class="_ _6"></span>在<span class="_ _6"></span>从<span class="_ _6"></span>时<span class="_ _6"></span>间<span class="_ _6"></span>轴逆<span class="_ _6"></span>时</div><div class="t m0 xc h9 y47 ff2 fs6 fc0 sc0 ls0 ws0">针旋转<span class="_ _b"> </span><span class="ff4"><span class="_ _10"></span><span class="_ _b"> </span><span class="ff2">度得到的<span class="_ _6"></span>频<span class="_ _6"></span>率<span class="_ _6"></span>轴<span class="_ _6"></span>上<span class="_ _6"></span>的<span class="_ _6"></span>表<span class="_ _7"></span>示<span class="_ _1c"> </span></span><span class="_ _18"></span><span class="ff2">那<span class="_ _7"></span>么<span class="_ _6"></span>分<span class="_ _6"></span>数<span class="_ _7"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里</span></span></div><div class="t m0 xc ha y48 ff2 fs6 fc0 sc0 ls0 ws0">叶变换可以看做是信号<span class="_ _6"></span>在<span class="_ _6"></span>从<span class="_ _6"></span>时<span class="_ _6"></span>间<span class="_ _6"></span>轴<span class="_ _6"></span>逆<span class="_ _6"></span>时<span class="_ _6"></span>针<span class="_ _6"></span>旋<span class="_ _6"></span>转<span class="_ _6"></span>任意<span class="_ _6"></span>角</div><div class="t m0 xc h9 y49 ff2 fs6 fc0 sc0 ls0 ws0">度得到的<span class="_ _1d"> </span><span class="ff8">u<span class="_ _b"> </span></span>轴<span class="_ _6"></span>上<span class="_ _6"></span>的<span class="_ _7"></span>表<span class="_ _7"></span>示<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">因<span class="_ _6"></span>此<span class="_ _7"></span>它<span class="_ _7"></span>是<span class="_ _6"></span>傅<span class="_ _7"></span>里<span class="_ _6"></span>叶<span class="_ _7"></span>变<span class="_ _7"></span>换<span class="_ _6"></span>的<span class="_ _7"></span>一<span class="_ _6"></span>种</span></span></div><div class="t m0 xc ha y4a ff2 fs6 fc0 sc0 ls0 ws0">广义形式</div><div class="t m0 x24 hb y4b ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="_ _7"></span></div><div class="t m0 x25 h9 y4a ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1f"></span><span class="ff2">具有<span class="_ _6"></span>比<span class="_ _7"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _7"></span>变<span class="_ _6"></span>换<span class="_ _6"></span>更<span class="_ _6"></span>加<span class="_ _7"></span>适<span class="_ _6"></span>合<span class="_ _7"></span>处<span class="_ _7"></span>理<span class="_ _6"></span>时<span class="_ _7"></span>变<span class="_ _6"></span>信</span></div><div class="t m0 xc h9 y4c ff2 fs6 fc0 sc0 ls0 ws0">号和系统的特性<span class="_ _1c"> </span><span class="ff4"></span></div><div class="t m0 xc h3 y4d ff6 fs1 fc0 sc0 ls0 ws0">2<span class="_ _3"> </span><span class="ff4"><span class="_ _8"> </span><span class="ff5">离散分数阶<span class="_ _6"></span>傅里叶变换</span></span></div><div class="t m0 xc h8 y4e ff6 fs5 fc0 sc0 ls0 ws0">2<span class="_ _a"></span><span class="ff4"><span class="_ _10"></span><span class="ff6">1<span class="_ _3"> </span><span class="ff4"><span class="_ _3"> </span><span class="ff5">分数阶傅里叶变换</span></span></span></span></div><div class="t m0 x26 h9 y4f ff8 fs6 fc0 sc0 ls0 ws0">x<span class="_ _7"></span><span class="ff4"><span class="_ _e"></span></span>t<span class="_ _7"></span><span class="ff4"><span class="_ _d"></span><span class="ff2">是<span class="_ _7"></span>时<span class="_ _7"></span>域<span class="_ _7"></span>信<span class="_ _7"></span>号<span class="_ _1c"> </span><span class="ff4"><span class="_ _f"></span><span class="ff8">p<span class="_ _2"> </span><span class="ff2">阶<span class="_ _7"></span>的<span class="_ _7"></span><span class="fc1 sc0">分</span><span class="_ _7"></span><span class="fc1 sc0">数</span><span class="_ _7"></span><span class="fc1 sc0">阶</span><span class="_ _7"></span><span class="fc1 sc0">傅</span><span class="_ _7"></span><span class="fc1 sc0">里</span><span class="_ _7"></span><span class="fc1 sc0">叶</span><span class="_ _7"></span><span class="fc1 sc0">变</span><span class="_ _7"></span><span class="fc1 sc0">换</span><span class="_ _7"></span>定<span class="_ _7"></span>义</span></span></span></span></span></div><div class="t m0 xc h9 y50 ff2 fs6 fc0 sc0 ls0 ws0">为<span class="_ _1c"> </span><span class="ff4"></span></div><div class="t m0 x27 hd y51 ff8 fs6 fc0 sc0 ls0 ws0">X</div><div class="t m0 x28 he y52 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x29 h9 y51 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">u<span class="_ _6"></span></span><span class="_ _1c"> </span><span class="_ _1b"> </span><span class="_ _0"> </span><span class="ff8">F</span></div><div class="t m0 x2a he y52 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x2b h9 y51 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">x<span class="_ _7"></span></span><span class="_ _12"></span><span class="ff8">t<span class="_ _6"></span></span><span class="_ _10"></span><span class="_ _7"></span><span class="_ _e"></span><span class="ff8">u<span class="_ _6"></span></span><span class="_ _1c"> </span></div><div class="t m0 x2c hf y53 ff4 fs8 fc0 sc0 ls0 ws0"></div><div class="t m0 x2d hb y54 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x2e hb y55 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x9 hb y56 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x2e hb y57 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x2f h9 y51 ff8 fs6 fc0 sc0 ls0 ws0">x<span class="_ _7"></span><span class="ff4"><span class="_ _12"></span></span>t<span class="_ _6"></span><span class="ff4"><span class="_ _7"></span></span>K</div><div class="t m0 x30 he y52 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 xe h9 y51 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">u<span class="_ _c"> </span></span><span class="_ _16"></span><span class="ff8">t<span class="_ _6"></span><span class="ff4"><span class="_ _a"></span><span class="ff1">d<span class="_ _12"> </span><span class="ff8">t</span></span></span></span></div><div class="t m0 x20 h9 y58 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _6"></span></div><div class="t m0 xc ha y59 ff2 fs6 fc0 sc0 ls0 ws0">其中</div><div class="t m0 xd hd y5a ff8 fs6 fc0 sc0 ls0 ws0">K</div><div class="t m0 x31 he y5b ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x32 h9 y5a ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">u<span class="_ _c"> </span></span><span class="_ _16"></span><span class="ff8">t<span class="_ _6"></span><span class="ff4"><span class="_ _12"> </span></span></span></div><div class="t m1 x33 h10 y5c ff4 fs9 fc0 sc0 ls0 ws0"></div><div class="t m0 x34 h9 y5c ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _12"></span><span class="ff8">t<span class="_ _2"> </span></span><span class="_ _1c"> </span><span class="ff8">u<span class="_ _6"></span></span><span class="_ _2"> </span><span class="_ _22"> </span><span class="ff8">p<span class="_ _b"> </span></span><span class="_ _3"> </span><span class="_ _1e"> </span><span class="ff8">n</span></div><div class="t m0 x35 hd y5a ff8 fs6 fc0 sc0 ls0 ws0">A</div><div class="t m0 x36 he y5b ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x37 h9 y5a ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _6"></span><span class="ff1">e<span class="_ _10"></span>xp<span class="_ _23"> </span>j<span class="ff4"></span></span></div><div class="t m0 x38 hd y5d ff8 fs6 fc0 sc0 ls0 ws0">u</div><div class="t m0 x39 hb y5e ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x3a h11 y5d ff1 fs6 fc0 sc0 ls0 ws0">c<span class="_ _10"></span>ot</div><div class="t m0 x3b h9 y5f ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x3b h9 y60 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x3c hd y5d ff8 fs6 fc0 sc0 ls0 ws0">p</div><div class="t m0 xb h9 y5a ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _12"></span><span class="_ _0"> </span><span class="ff8">u<span class="_ _a"></span>t<span class="ff1">c<span class="_ _a"></span>s<span class="_ _10"></span>c</span></span></div><div class="t m0 x9 h9 y61 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x9 h9 y62 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x3d hd y5a ff8 fs6 fc0 sc0 ls0 ws0">p</div><div class="t m0 x38 h9 y63 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="ff8">t</span></div><div class="t m0 x3e hb y64 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x3f h11 y63 ff1 fs6 fc0 sc0 ls0 ws0">c<span class="_ _10"></span>ot</div><div class="t m0 x40 h9 y65 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x40 h9 y66 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x41 hd y63 ff8 fs6 fc0 sc0 ls0 ws0">p</div><div class="t m0 x42 h9 y5a ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _24"> </span><span class="ff8">p<span class="_ _b"> </span></span><span class="_ _b"> </span><span class="_ _0"> </span><span class="ff8">n</span></div><div class="t m1 x43 h10 y67 ff4 fs9 fc0 sc0 ls0 ws0"></div><div class="t m0 x36 h9 y67 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">t<span class="_ _0"> </span></span><span class="_"> </span><span class="ff8">u<span class="_ _6"></span></span><span class="_ _2"> </span><span class="_ _25"> </span><span class="ff8">p<span class="_ _b"> </span></span><span class="_ _3"> </span><span class="_ _1e"> </span><span class="ff8">n<span class="_ _b"> </span></span><span class="_ _b"> </span></div><div class="t m0 x20 h9 y68 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _6"></span></div><div class="t m0 xc h9 y69 ff2 fs6 fc0 sc0 ls0 ws0">在<span class="_ _10"></span>这<span class="_ _a"></span>个<span class="_ _10"></span>表达式<span class="_ _6"></span>中<span class="_ _8"> </span><span class="ff4"><span class="_ _21"></span><span class="ff8">A</span></span></div><div class="t m0 x44 he y6a ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x45 h9 y69 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _26"> </span><span class="_ _3"> </span><span class="_ _1e"> </span><span class="ff1">j<span class="_ _a"></span>c<span class="_ _d"></span>ot<span class="ff4"><span class="_ _d"></span><span class="_ _e"></span><span class="ff8">p<span class="_ _e"></span></span><span class="_ _f"></span><span class="_ _2"> </span><span class="_ _18"></span><span class="ff2">分数阶<span class="_ _6"></span>傅里叶<span class="_ _6"></span>变</span></span></span></div><div class="t m0 xc h9 y6b ff2 fs6 fc0 sc0 ls0 ws0">换<span class="_ _a"></span>是<span class="_ _10"></span>周<span class="_ _10"></span>期<span class="_ _a"></span>性<span class="_ _10"></span>的<span class="_ _8"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">周<span class="_ _10"></span>期<span class="_ _a"></span>为<span class="_ _e"></span><span class="ff4"><span class="_ _8"> </span><span class="_ _5"></span><span class="ff2">所<span class="_ _a"></span>以<span class="_ _10"></span>分<span class="_ _a"></span>数<span class="_ _10"></span>阶<span class="_ _a"></span>傅<span class="_ _10"></span>里<span class="_ _a"></span>叶<span class="_ _10"></span>变<span class="_ _a"></span>换<span class="_ _10"></span>阶<span class="_ _a"></span>次<span class="_ _10"></span>限<span class="_ _10"></span>定</span></span></span></span></div><div class="t m0 xc h9 y6c ff2 fs6 fc0 sc0 ls0 ws0">为<span class="_ _6"></span><span class="ff4"><span class="_ _0"> </span><span class="_ _e"></span><span class="_ _2"> </span><span class="_ _1f"></span><span class="_ _7"></span><span class="_ _b"> </span><span class="_ _1f"></span><span class="ff2">在<span class="_ _6"></span>本文中<span class="_ _c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">不<span class="_ _6"></span>考虑<span class="_ _4"> </span><span class="ff8">p<span class="_ _b"> </span><span class="ff4"><span class="_ _2"> </span><span class="_ _12"></span></span>n<span class="_ _2"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">另<span class="_ _6"></span>外<span class="_ _8"> </span><span class="ff4"><span class="_ _f"></span><span class="ff8">F</span></span></span></span></span></span></span></span></span></div><div class="t m0 x46 he y6d ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x47 h9 y6c ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _6"></span><span class="ff8">x<span class="_ _7"></span></span><span class="_ _7"></span><span class="ff8">t<span class="_ _7"></span></span><span class="_ _10"></span><span class="_ _a"></span><span class="_ _6"></span><span class="ff8">u</span></div><div class="t m0 x18 h9 y6e ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1a"> </span><span class="ff8">F</span></div><div class="t m0 x19 hb y6f ff8 fs7 fc0 sc0 ls0 ws0">p<span class="_ _e"> </span><span class="ff4"><span class="_ _1e"> </span></span></div><div class="t m0 x8 h9 y6e ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _6"></span><span class="ff8">x<span class="_ _7"></span></span><span class="_ _7"></span><span class="ff8">t<span class="_ _6"></span></span><span class="_ _a"></span><span class="_ _10"></span><span class="_ _0"> </span><span class="_ _8"> </span><span class="ff8">u<span class="_ _6"></span></span><span class="_ _b"> </span><span class="_ _5"></span><span class="ff2">所<span class="_ _a"></span>以<span class="_ _10"></span>可<span class="_ _a"></span>假<span class="_ _10"></span>设<span class="_ _1c"> </span><span class="ff8">p<span class="_ _b"> </span><span class="ff4"><span class="_ _2"> </span><span class="_ _16"></span><span class="_ _8"> </span><span class="_ _5"></span></span></span></span></div><div class="t m0 x48 hb y70 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _a"></span><span class="_ _6"></span></div><div class="t m0 x46 h9 y6e ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 xc h8 y71 ff6 fs5 fc0 sc0 ls0 ws0">2<span class="_ _a"></span><span class="ff4"><span class="_ _10"></span><span class="ff6">2<span class="_ _3"> </span><span class="ff4"><span class="_ _3"> </span><span class="ff5">离散时间分数阶傅里叶变换<span class="_ _7"></span></span><span class="_ _10"></span><span class="ff6">DT<span class="_ _10"></span>F<span class="_ _10"></span>r<span class="_ _a"></span>F<span class="_ _10"></span>T<span class="ff4"></span></span></span></span></span></div><div class="t m0 x5 h9 y72 ff2 fs6 fc0 sc0 ls0 ws0">假设信号<span class="_ _1d"> </span><span class="ff8">x<span class="_ _e"></span><span class="ff4"><span class="_ _e"></span></span>t<span class="_ _6"></span><span class="ff4"><span class="_ _10"></span><span class="ff2">是模拟信号<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">那么<span class="fc1 sc0">时</span><span class="fc1 sc0">域</span><span class="fc1 sc0">采</span><span class="fc1 sc0">样</span><span class="fc1 sc0">信</span><span class="fc1 sc0">号</span></span></span></span></span></span></div><div class="t m0 x33 hd y73 ff8 fs6 fc0 sc0 ls0 ws0">x</div><div class="t m0 x34 he y74 ff8 fs7 fc0 sc0 ls0 ws0">s</div><div class="t m0 x11 h9 y73 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">t<span class="_ _6"></span></span><span class="_ _1d"> </span><span class="_ _27"> </span><span class="ff8">x<span class="_ _7"></span></span><span class="_ _12"></span><span class="ff8">t<span class="_ _6"></span></span></div><div class="t m0 x3f h12 y75 ff4 fsa fc0 sc0 ls0 ws0"></div><div class="t m0 x49 h13 y76 ff4 fsb fc0 sc0 ls0 ws0"></div><div class="t m0 x4a h14 y77 ff8 fsb fc0 sc0 ls0 ws0">n</div><div class="t m0 x4b h13 y78 ff4 fsb fc0 sc0 ls0 ws0"><span class="_"> </span></div><div class="t m0 x4c h13 y77 ff4 fsb fc0 sc0 ls0 ws0"></div><div class="t m1 x4d h10 y73 ff4 fs9 fc0 sc0 ls0 ws0"></div><div class="t m0 x4e h9 y73 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">t</span></div><div class="t m0 x4f h9 y79 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x50 h9 y73 ff8 fs6 fc0 sc0 ls0 ws0">n<span class="_ _7"></span><span class="ff4"><span class="_ _b"> </span></span>t<span class="_ _6"></span><span class="ff4"><span class="_ _28"> </span><span class="_ _d"></span><span class="_ _6"></span></span></div><div class="t m0 xc h9 y7a ff2 fs6 fc0 sc0 ls0 ws0">其中<span class="_ _1c"> </span><span class="ff4"><span class="_ _11"></span><span class="_ _b"> </span><span class="ff8">t<span class="_ _b"> </span><span class="ff2">是时域的采样间隔<span class="_ _1c"> </span></span></span><span class="_ _1f"></span><span class="ff2">本文中<span class="_ _c"> </span><span class="ff4"><span class="_ _b"> </span><span class="ff8">t<span class="_ _0"> </span></span><span class="_ _3"> </span><span class="_ _b"> </span><span class="_ _3"> </span><span class="_ _a"></span></span></span></span></div><div class="t m0 x51 hb y7b ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span></div><div class="t m0 x52 h9 y7a ff1 fs6 fc0 sc0 ls0 ws0">s<span class="_ _c"> </span><span class="ff4"></span></div><div class="t m0 x5 h9 y7c ff2 fs6 fc0 sc0 ls0 ws0">根据文献<span class="_ _7"></span><span class="ff4"><span class="_ _d"></span><span class="_ _10"></span><span class="_ _e"></span><span class="_ _a"></span><span class="ff2">中<span class="_ _6"></span>的<span class="_ _7"></span>式<span class="_ _1e"> </span><span class="ff4"><span class="_ _10"></span><span class="_ _a"></span><span class="_ _7"></span><span class="_ _8"> </span><span class="_ _13"></span><span class="ff2">采<span class="_ _7"></span>样<span class="_ _7"></span>信<span class="_ _7"></span>号<span class="_ _4"> </span><span class="ff8">x</span></span></span></span></span></div><div class="t m0 x46 he y7d ff8 fs7 fc0 sc0 ls0 ws0">s</div><div class="t m0 x47 h9 y7c ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1e"> </span><span class="ff8">t<span class="_ _e"></span></span><span class="_ _a"></span><span class="ff2">的<span class="_ _2"> </span><span class="ff1">D<span class="_ _10"></span>T<span class="ff4"></span></span></span></div><div class="t m0 x53 h9 y37 ff1 fs6 fc0 sc0 ls0 ws0">F<span class="_ _10"></span>r<span class="_ _a"></span>F<span class="_ _d"></span>T<span class="_ _b"> </span><span class="ff2">可以表示为<span class="_ _c"> </span><span class="ff4"></span></span></div><div class="t m0 x54 h15 y7e ff8 fs3 fc0 sc0 ls0 ws0">X</div><div class="t m0 x55 he y7f ff8 fs7 fc0 sc0 ls0 ws0">s<span class="_ _a"></span>p</div><div class="t m0 x56 h5 y7e ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _6"></span><span class="ff8">u</span><span class="_ _2"> </span></div><div class="t m0 x57 h5 y80 ff4 fs3 fc0 sc0 ls0 ws0"></div><div class="t m0 x54 h5 y81 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _1e"> </span><span class="ff8">t</span></div><div class="t m0 x58 h5 y82 ff4 fs3 fc0 sc0 ls0 ws0"></div><div class="t m0 x59 h16 y83 ff1 fs3 fc0 sc0 ls0 ws0">e</div><div class="t m0 x5a hb y84 ff1 fs7 fc0 sc0 ls0 ws0">j<span class="ff4"><span class="_ _d"></span><span class="ff1">c<span class="_ _a"></span>o<span class="_ _a"></span>t<span class="_ _e"> </span><span class="ff8">a<span class="ff4"><span class="_ _d"></span><span class="_ _a"></span><span class="_ _6"></span><span class="ff8">u</span></span></span></span></span></div><div class="t m0 x5b h17 y85 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x5c h5 y82 ff4 fs3 fc0 sc0 ls0 ws0"></div><div class="t m0 x5d h18 y86 ff4 fsd fc0 sc0 ls0 ws0"></div><div class="t m0 x5e h17 y87 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x5f h19 y88 ff8 fsc fc0 sc0 ls0 ws0">n</div><div class="t m0 x5d h17 y89 ff4 fsc fc0 sc0 ls0 ws0"><span class="_ _b"> </span></div><div class="t m0 x60 h17 y88 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x61 h15 y83 ff8 fs3 fc0 sc0 ls0 ws0">X</div><div class="t m0 x62 he y8a ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x63 h15 y83 ff8 fs3 fc0 sc0 ls0 ws0">u</div><div class="t m0 x64 h5 y82 ff4 fs3 fc0 sc0 ls0 ws0"></div><div class="t m0 x65 h15 y83 ff8 fs3 fc0 sc0 ls0 ws0">n</div><div class="t m0 x66 h5 y80 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _a"></span><span class="_ _10"></span><span class="ff1">si<span class="_ _10"></span>n<span class="_ _12"> </span><span class="ff8">a</span></span></div><div class="t m0 x67 h5 y81 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _1e"> </span><span class="ff8">t</span></div><div class="t m0 x68 h5 y82 ff4 fs3 fc0 sc0 ls0 ws0"></div><div class="t m0 x69 h16 y83 ff1 fs3 fc0 sc0 ls0 ws0">e</div><div class="t m0 x6a hb y8b ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x6b hb y84 ff1 fs7 fc0 sc0 ls0 ws0">j<span class="ff4"><span class="_ _10"></span><span class="ff1">c<span class="_ _10"></span>ot<span class="_ _e"> </span><span class="ff8">a<span class="_ _a"></span><span class="ff4"><span class="_ _d"></span><span class="_ _29"> </span><span class="ff8">u</span></span></span></span></span></div><div class="t m0 x6c hb y8b ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x6d he y84 ff8 fs7 fc0 sc0 ls0 ws0">n</div><div class="t m0 x6e hb y8c ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span><span class="ff1">s<span class="_ _a"></span>i<span class="_ _a"></span>n<span class="_ _7"> </span><span class="ff8">a</span></span></div><div class="t m0 x6f hb y8d ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span><span class="ff8">t</span></div><div class="t m0 x70 h17 y85 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x71 h9 y8e ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _7"></span></div><div class="t m0 x72 h9 y8f ff8 fs6 fc0 sc0 ls0 ws0">a<span class="_ _7"></span><span class="ff4"></span></div><div class="t m0 x73 h9 y90 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x13 h9 y91 ff4 fs6 fc0 sc0 ls0 ws0"></div><div class="t m0 x74 h9 y8f ff8 fs6 fc0 sc0 ls0 ws0">p<span class="_ _1c"> </span><span class="ff4"><span class="_ _11"></span><span class="ff2">时<span class="_ _e"></span>域<span class="_ _e"></span>采<span class="_ _7"></span>样<span class="_ _e"></span>信<span class="_ _e"></span>号<span class="_ _1a"> </span><span class="ff8">x</span></span></span></div><div class="t m0 x65 he y92 ff8 fs7 fc0 sc0 ls0 ws0">s</div><div class="t m0 x75 h9 y8f ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1e"> </span><span class="ff8">t<span class="_ _12"> </span></span><span class="ff2">的<span class="_ _8"> </span><span class="ff1">D<span class="_ _a"></span>T<span class="_ _a"></span>F<span class="_ _10"></span>r<span class="_ _a"></span>F<span class="_ _d"></span>T<span class="_ _8"> </span><span class="ff2">是<span class="_ _1a"> </span><span class="ff8">X</span></span></span></span></div><div class="t m0 x76 he y92 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x77 h9 y8f ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1e"> </span><span class="ff8">u<span class="_ _e"></span></span><span class="ff2">的</span></div><div class="t m0 x53 h9 y93 ff1 fs6 fc0 sc0 ls0 ws0">c<span class="_ _a"></span>h<span class="_ _10"></span>ir<span class="_ _a"></span>p<span class="_ _1e"> </span><span class="ff2">周期延拓<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">周<span class="_ _7"></span>期<span class="_ _7"></span>为<span class="_ _2"> </span><span class="ff4"><span class="_ _0"> </span><span class="_ _10"></span><span class="ff1">s<span class="_ _a"></span>i<span class="_ _a"></span>n<span class="_ _1e"> </span><span class="ff8">a<span class="_ _12"> </span><span class="ff4"><span class="_ _a"></span><span class="_ _0"> </span><span class="ff8">t<span class="_ _c"> </span></span><span class="_ _11"></span><span class="ff1">c<span class="_ _a"></span>h<span class="_ _10"></span>ir<span class="_ _a"></span>p<span class="_ _b"> </span><span class="ff2">周<span class="_ _7"></span>期<span class="_ _6"></span>延<span class="_ _7"></span>拓<span class="_ _7"></span>不</span></span></span></span></span></span></span></span></span></div><div class="t m0 x53 h9 y94 ff2 fs6 fc0 sc0 ls0 ws0">同于传统意<span class="_ _6"></span>义<span class="_ _6"></span>上<span class="_ _7"></span>的<span class="_ _7"></span>周<span class="_ _6"></span>期<span class="_ _7"></span>延<span class="_ _6"></span>拓<span class="_ _1d"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">它<span class="_ _7"></span>不<span class="_ _6"></span>仅<span class="_ _7"></span>在<span class="_ _7"></span>幅<span class="_ _7"></span>度<span class="_ _7"></span>上<span class="_ _7"></span>进<span class="_ _7"></span>行<span class="_ _7"></span>周</span></span></div><div class="t m0 x53 h9 y95 ff2 fs6 fc0 sc0 ls0 ws0">期延拓<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">还包含了相位<span class="_ _6"></span>的<span class="_ _6"></span>变<span class="_ _6"></span>化<span class="_ _1d"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">为<span class="_ _6"></span>了<span class="_ _6"></span>得<span class="_ _6"></span>到<span class="_ _6"></span>离<span class="_ _6"></span>散分<span class="_ _6"></span>数<span class="_ _6"></span>阶<span class="_ _6"></span>傅</span></span></span></span></div><div class="t m0 x53 h9 y96 ff2 fs6 fc0 sc0 ls0 ws0">里叶变换<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">需要在分数阶傅里叶域进行采样<span class="_ _1d"> </span><span class="ff4"></span></span></span></div><div class="t m0 x53 h8 y97 ff6 fs5 fc0 sc0 ls0 ws0">2<span class="_ _a"></span><span class="ff4"><span class="_ _10"></span><span class="ff6">3<span class="_ _3"> </span><span class="ff4"><span class="_ _3"> </span><span class="ff5"><span class="fc1 sc0">离</span><span class="fc1 sc0">散</span><span class="fc1 sc0">分</span><span class="fc1 sc0">数</span><span class="fc1 sc0">阶</span><span class="fc1 sc0">傅</span><span class="fc1 sc0">里</span><span class="fc1 sc0">叶</span><span class="fc1 sc0">变</span><span class="fc1 sc0">换</span><span class="_ _7"></span></span><span class="_ _10"></span><span class="ff6">DF<span class="_ _a"></span>r<span class="_ _d"></span>F<span class="_ _a"></span>T<span class="ff4"></span></span></span></span></span></div><div class="t m0 x73 ha y98 ff2 fs6 fc0 sc0 ls0 ws0">假设在时域和分数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>变<span class="_ _6"></span>换<span class="_ _6"></span>域<span class="_ _6"></span>的<span class="_ _6"></span>采样<span class="_ _6"></span>点<span class="_ _6"></span>数<span class="_ _6"></span>分</div><div class="t m0 x53 h9 y99 ff2 fs6 fc0 sc0 ls0 ws0">别为<span class="_ _1c"> </span><span class="ff8">N<span class="_ _3"> </span></span>和<span class="_ _0"> </span><span class="ff8">M<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">一般来讲<span class="_ _1c"> </span><span class="ff8">M<span class="_ _b"> </span><span class="ff4"><span class="_ _4"> </span></span>N<span class="_ _c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">分<span class="_ _6"></span>数<span class="_ _6"></span>阶傅<span class="_ _6"></span>里叶<span class="_ _6"></span>域<span class="_ _6"></span>的采<span class="_ _6"></span>样</span></span></span></span></span></span></div><div class="t m0 x53 h9 y9a ff2 fs6 fc0 sc0 ls0 ws0">间隔为<span class="_ _8"> </span><span class="ff4"><span class="_ _3"> </span><span class="ff8">u<span class="_ _0"> </span></span><span class="_ _3"> </span><span class="ff1">s<span class="_ _10"></span>in<span class="_ _1e"> </span><span class="ff8">a<span class="_ _6"></span><span class="ff4"><span class="_ _a"></span><span class="_ _b"> </span><span class="ff8">t<span class="_ _a"></span><span class="ff4"><span class="_ _1e"> </span><span class="ff8">N<span class="_ _7"></span></span><span class="_ _2"> </span></span></span></span></span></span></span></div><div class="t m0 x73 h9 y9b ff2 fs6 fc0 sc0 ls0 ws0">设<span class="_ _1a"> </span><span class="ffa">F<span class="_ _12"> </span></span>为离<span class="_ _6"></span>散<span class="_ _7"></span>分<span class="_ _7"></span>数<span class="_ _6"></span>阶<span class="_ _7"></span>傅<span class="_ _7"></span>里<span class="_ _6"></span>叶<span class="_ _7"></span>变<span class="_ _6"></span>换<span class="_ _7"></span>矩<span class="_ _7"></span>阵<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">它<span class="_ _7"></span>的<span class="_ _7"></span>第<span class="_ _1e"> </span><span class="ff4"><span class="_ _e"></span><span class="ff8">m<span class="_ _c"> </span></span></span></span></span></div><div class="t m0 x72 h9 y9c ff8 fs6 fc0 sc0 ls0 ws0">n<span class="ff4"><span class="_ _10"></span><span class="ff2">个元素表示为<span class="_ _1c"> </span><span class="ff4"></span></span></span></div><div class="t m0 x72 h9 y9d ff4 fs6 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="ff8">F</span><span class="_ _6"></span><span class="ff8">m<span class="_ _c"> </span></span><span class="_ _16"></span><span class="ff8">n<span class="_ _6"></span><span class="ff4"><span class="_ _1e"> </span><span class="_ _2"> </span><span class="ff1">e</span></span></span></div><div class="t m0 x78 h1a y9e ff1 fs7 fc0 sc0 ls0 ws0">jc<span class="_ _a"></span>ot</div><div class="t m2 x79 h1b y9e ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 x7a hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="_ _1e"> </span><span class="ff8">u</span></div><div class="t m0 x7b h17 y9f ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x62 hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span><span class="ff8">m</span></div><div class="t m0 x7c h17 y9f ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x63 hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span></div><div class="t m0 x7d h9 y9d ff4 fs6 fc0 sc0 ls0 ws0"><span class="ff1">e</span></div><div class="t m0 x7e hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff1">j</span><span class="_ _7"></span><span class="_ _7"></span><span class="ff8">N</span><span class="_ _7"></span><span class="_ _7"></span><span class="ff8">mn<span class="_ _6"></span></span></div><div class="t m0 x7f h9 y9d ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _6"></span><span class="ff1">e</span></div><div class="t m0 x80 h1a y9e ff1 fs7 fc0 sc0 ls0 ws0">jcot</div><div class="t m2 x17 h1b y9e ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 x81 hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="_ _1e"> </span><span class="ff8">t</span></div><div class="t m0 x82 h17 y9f ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x83 hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff8">n</span></div><div class="t m0 x84 h17 y9f ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x85 hb y9e ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _10"></span></div><div class="t m0 x71 h9 y9d ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _7"></span></div><div class="t m0 x53 h9 ya0 ff2 fs6 fc0 sc0 ls0 ws0">离散分数阶傅里叶变换的定义式为<span class="_ _1c"> </span><span class="ff4"></span></div><div class="t m0 x86 h1c ya1 ffa fs6 fc0 sc0 ls0 ws0">X</div><div class="t m0 x87 he ya2 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x88 h9 ya1 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _19"> </span><span class="ffa">F<span class="_ _d"></span><span class="ff4"><span class="_ _0"> </span><span class="ffa">x<span class="_ _2a"> </span></span><span class="_ _d"></span><span class="_ _7"></span></span></span></div><div class="t m0 x89 h1c ya3 ffa fs6 fc0 sc0 ls0 ws0">X</div><div class="t m0 x55 he ya4 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x56 h9 ya3 ff2 fs6 fc0 sc0 ls0 ws0">和<span class="_ _3"> </span><span class="ffa">x<span class="_ _0"> </span></span>分别是分<span class="_ _7"></span>数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _7"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>域<span class="_ _7"></span>和<span class="_ _6"></span>时<span class="_ _6"></span>域<span class="_ _6"></span>信<span class="_ _7"></span>号<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">根<span class="_ _6"></span>据<span class="_ _6"></span>分<span class="_ _6"></span>数</span></span></div><div class="t m0 x53 h9 ya5 ff2 fs6 fc0 sc0 ls0 ws0">阶傅里叶变<span class="_ _6"></span>换<span class="_ _6"></span>的<span class="_ _7"></span>采<span class="_ _7"></span>样<span class="_ _6"></span>理<span class="_ _7"></span>论<span class="_ _1c"> </span><span class="ff4"><span class="_ _11"></span><span class="ff2">信<span class="_ _6"></span>号<span class="_ _7"></span>在<span class="_ _6"></span>时<span class="_ _7"></span>域<span class="_ _7"></span>和<span class="_ _7"></span>分<span class="_ _7"></span>数<span class="_ _7"></span>阶<span class="_ _7"></span>傅<span class="_ _7"></span>里</span></span></div><div class="t m0 x53 ha ya6 ff2 fs6 fc0 sc0 ls0 ws0">叶域的离散分别造成分数阶傅里叶域和时域的<span class="_ _3"> </span><span class="ff1">ch<span class="_ _10"></span>ir<span class="_ _10"></span>p<span class="_ _b"> </span><span class="ff2">周</span></span></div><div class="t m0 x53 h9 ya7 ff2 fs6 fc0 sc0 ls0 ws0">期性延拓<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">这个过程可以表示为<span class="_ _1c"> </span><span class="ff4"></span></span></span></div><div class="t m0 x59 hd ya8 ff8 fs6 fc0 sc0 ls0 ws0">X</div><div class="t m0 x8a he ya9 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x8b h9 ya8 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="ff8">m<span class="_ _8"> </span></span><span class="_ _8"> </span><span class="ff8">N<span class="_ _6"></span></span><span class="_ _a"></span><span class="ff1">e</span></div><div class="t m0 x8c hb yaa ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff1">j</span></div><div class="t m0 x8d hb yab ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x8d hb yac ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x7b h1a yaa ff1 fs7 fc0 sc0 ls0 ws0">cot</div><div class="t m2 x8e h1b yaa ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 x7c hb yaa ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="ff8">m<span class="_ _b"> </span></span><span class="_ _b"> </span><span class="ff8">N<span class="_ _6"></span></span></div><div class="t m0 x8f h17 yad ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x66 hb yaa ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff8">u</span></div><div class="t m0 x67 h17 yad ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x90 h9 ya8 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1d"> </span><span class="ff8">X</span></div><div class="t m0 x91 he ya9 ff8 fs7 fc0 sc0 ls0 ws0">p</div><div class="t m0 x92 h9 ya8 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="ff8">m<span class="_ _7"></span></span><span class="_ _10"></span><span class="ff1">e</span></div><div class="t m0 x81 hb yaa ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _1e"> </span><span class="ff1">j</span></div><div class="t m0 x1e hb yab ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x1e hb yac ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x83 h1a yaa ff1 fs7 fc0 sc0 ls0 ws0">cot</div><div class="t m2 x93 h1b yaa ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 x94 he yaa ff8 fs7 fc0 sc0 ls0 ws0">m</div><div class="t m0 x95 h17 yad ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x96 hb yaa ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff8">u</span></div><div class="t m0 x97 h17 yad ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x71 h9 ya8 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _7"></span></div><div class="t m0 x98 h9 yae ff8 fs6 fc0 sc0 ls0 ws0">x<span class="_ _7"></span><span class="ff4"><span class="_ _12"></span></span>n<span class="_ _2"> </span><span class="ff4"><span class="_ _2"> </span></span>N<span class="_ _7"></span><span class="ff4"><span class="_ _a"></span><span class="ff1">e</span></span></div><div class="t m0 x8d h1a yaf ff1 fs7 fc0 sc0 ls0 ws0">j</div><div class="t m0 x61 hb yb0 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x61 hb yb1 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x62 h1a yaf ff1 fs7 fc0 sc0 ls0 ws0">cot</div><div class="t m2 x99 h1b yaf ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 x63 hb yaf ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="ff8">n<span class="_ _b"> </span></span><span class="_ _b"> </span><span class="ff8">N<span class="_ _6"></span></span></div><div class="t m0 x9a h17 yb2 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x9b hb yaf ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff8">t</span></div><div class="t m0 x67 h17 yb2 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x90 h9 yae ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _4"> </span><span class="ff8">x<span class="_ _7"></span></span><span class="_ _12"></span><span class="ff8">n<span class="_ _6"></span></span><span class="_ _10"></span><span class="ff1">e</span></div><div class="t m0 x9c h1a yaf ff1 fs7 fc0 sc0 ls0 ws0">j</div><div class="t m0 x9d hb yb0 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x9d hb yb1 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x9e h1a yaf ff1 fs7 fc0 sc0 ls0 ws0">cot</div><div class="t m2 x1e h1b yaf ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 x82 he yaf ff8 fs7 fc0 sc0 ls0 ws0">n</div><div class="t m0 x9f h17 yb2 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 xa0 hb yaf ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="ff8">t</span></div><div class="t m0 x6c h17 yb2 ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x71 h9 yae ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _7"></span></div><div class="t m0 x53 h3 yb3 ff6 fs1 fc0 sc0 ls0 ws0">3<span class="_ _3"> </span><span class="ff4"><span class="_ _1c"> </span></span>M<span class="_ _10"></span>I<span class="_ _a"></span>M<span class="_ _d"></span>O<span class="_ _c"> </span>S<span class="_ _a"></span>C<span class="_ _d"></span><span class="ff4"><span class="_ _f"></span><span class="ff6">Fr<span class="_ _d"></span>F<span class="_ _d"></span>D<span class="_ _a"></span>E<span class="_ _b"> </span><span class="ff5">系统</span></span></span></div><div class="t m0 x72 h9 yb4 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="_ _b"> </span><span class="ff2">基于分数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>变<span class="_ _6"></span>换<span class="_ _7"></span>的<span class="_ _b"> </span><span class="ff1">MI<span class="_ _d"></span>M<span class="_ _a"></span>O<span class="_ _8"> </span>S<span class="_ _a"></span>C<span class="_ _a"></span><span class="ff4"><span class="_ _16"></span><span class="ff1">F<span class="_ _a"></span>r<span class="_ _10"></span>F<span class="_ _d"></span>DE<span class="_ _0"> </span><span class="ff2">系<span class="_ _7"></span>统<span class="_ _6"></span>框</span></span></span></span></span></div><div class="t m0 x53 h9 yb5 ff2 fs6 fc0 sc0 ls0 ws0">图如图<span class="_ _b"> </span><span class="ff4"><span class="_ _b"> </span></span>所示<span class="_ _c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">发送端和接<span class="_ _6"></span>收<span class="_ _6"></span>端<span class="_ _6"></span>的<span class="_ _6"></span>天<span class="_ _6"></span>线<span class="_ _6"></span>数分<span class="_ _6"></span>别<span class="_ _6"></span>为<span class="_ _4"> </span><span class="ff8">N</span></span></span></div><div class="t m0 xa1 he yb6 ff8 fs7 fc0 sc0 ls0 ws0">T</div><div class="t m0 x70 ha yb5 ff2 fs6 fc0 sc0 ls0 ws0">和</div><div class="t m0 x53 hd yb7 ff8 fs6 fc0 sc0 ls0 ws0">N</div><div class="t m0 xa2 he yb8 ff8 fs7 fc0 sc0 ls0 ws0">R</div><div class="t m0 x58 h9 yb7 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1f"></span><span class="ff2">假设<span class="_ _1c"> </span><span class="ff8">N</span></span></div><div class="t m0 xa3 he yb8 ff8 fs7 fc0 sc0 ls0 ws0">T</div><div class="t m0 xa4 h9 yb7 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _4"> </span><span class="ff8">N</span></div><div class="t m0 xa5 he yb8 ff8 fs7 fc0 sc0 ls0 ws0">R</div><div class="t m0 x5e hb yb9 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _a"></span><span class="_ _a"></span><span class="_ _b"> </span><span class="_ _9"></span><span class="_ _6"></span></div><div class="t m0 xa6 h9 yb7 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _18"></span><span class="ff2">不<span class="_ _7"></span>失<span class="_ _7"></span>一<span class="_ _6"></span>般<span class="_ _7"></span>性<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">本<span class="_ _7"></span>文<span class="_ _4"> </span><span class="ff8">N</span></span></span></span></div><div class="t m0 x83 he yb8 ff8 fs7 fc0 sc0 ls0 ws0">T</div><div class="t m0 xa7 h9 yb7 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="ff8">N</span></div><div class="t m0 x14 he yb8 ff8 fs7 fc0 sc0 ls0 ws0">R</div><div class="t m0 xa8 h9 yb7 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _2"> </span><span class="_ _1c"> </span></div><div class="t m0 x53 h9 yba ff2 fs6 fc0 sc0 ls0 ws0">发送<span class="_ _1e"> </span>天<span class="_ _0"> </span>线<span class="_ _0"> </span>的<span class="_ _1e"> </span>数<span class="_ _0"> </span>据<span class="_ _0"> </span>组<span class="_ _0"> </span>成<span class="_ _0"> </span>的<span class="_ _0"> </span>向<span class="_ _0"> </span>量<span class="_ _0"> </span>为<span class="_ _2b"> </span><span class="ffa">x<span class="_ _1d"> </span><span class="ff4"><span class="_ _23"> </span><span class="_ _b"> </span><span class="ff8">x</span></span></span></div><div class="t m0 xa9 hb ybb ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 xaa h9 yba ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _0"> </span><span class="_ _2"> </span><span class="_ _12"></span><span class="_ _2c"> </span></div><div class="t m0 x89 hd ybc ff8 fs6 fc0 sc0 ls0 ws0">x</div><div class="t m0 xa2 he ybd ff8 fs7 fc0 sc0 ls0 ws0">N</div><div class="t m0 xab h19 ybe ff8 fsc fc0 sc0 ls0 ws0">T</div><div class="t m0 x58 hb ybd ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span></div><div class="t m0 xac h9 ybc ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _6"></span><span class="_ _2"> </span><span class="_ _f"></span><span class="_ _29"> </span><span class="_ _16"></span><span class="ff8">x</span></div><div class="t m0 xad hb ybd ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 x5f h9 ybc ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">N<span class="_ _c"> </span></span><span class="_ _0"> </span><span class="_ _e"></span><span class="_ _2"> </span><span class="_ _10"></span><span class="_ _2c"> </span><span class="_ _16"></span><span class="ff8">x</span></div><div class="t m0 xae he ybd ff8 fs7 fc0 sc0 ls0 ws0">N</div><div class="t m0 xaf h19 ybe ff8 fsc fc0 sc0 ls0 ws0">T</div><div class="t m0 xb0 hb ybd ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span></div><div class="t m0 xb1 h9 ybc ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">N<span class="_ _c"> </span></span><span class="_ _0"> </span><span class="_ _e"></span></div><div class="t m0 x1e h1a ybf ff1 fs7 fc0 sc0 ls0 ws0">T</div><div class="t m0 xa0 h9 ybc ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _16"></span><span class="ff8">x</span></div><div class="t m0 x94 he ybd ff8 fs7 fc0 sc0 ls0 ws0">k</div><div class="t m0 x95 h9 ybc ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _e"></span><span class="ff8">m<span class="_ _e"></span></span><span class="_ _2"> </span><span class="ff2">为</span></div><div class="t m0 x53 h9 yc0 ff2 fs6 fc0 sc0 ls0 ws0">第<span class="_ _1d"> </span><span class="ff8">k<span class="_ _b"> </span></span>个天线的第<span class="_ _b"> </span><span class="ff8">m<span class="_ _b"> </span></span>个发送数<span class="_ _6"></span>据<span class="_ _1c"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">序<span class="_ _6"></span>列<span class="_ _1a"> </span><span class="ffa">x<span class="_ _b"> </span></span>的<span class="_ _6"></span>总<span class="_ _6"></span>长<span class="_ _6"></span>度<span class="_ _6"></span>为<span class="_ _3"> </span><span class="ff8">N</span></span></span></div><div class="t m0 xb2 he yc1 ff8 fs7 fc0 sc0 ls0 ws0">T</div><div class="t m0 x72 h9 yc2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _1c"> </span><span class="ff8">N<span class="_ _1c"> </span></span><span class="_ _1f"></span><span class="ff2">在本文<span class="_ _6"></span>中<span class="_ _1d"> </span><span class="ff4"><span class="_ _13"></span></span></span></div><div class="t m0 xb3 h1a yc3 ff1 fs7 fc0 sc0 ls0 ws0">T</div><div class="t m0 xb4 h9 yc2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _18"></span></div><div class="t m0 xb5 h1a yc3 ff1 fs7 fc0 sc0 ls0 ws0">H</div><div class="t m0 x65 h9 yc2 ff2 fs6 fc0 sc0 ls0 ws0">表<span class="_ _6"></span>示<span class="_ _6"></span>转<span class="_ _7"></span>置<span class="_ _6"></span>和<span class="_ _6"></span>共<span class="_ _7"></span>轭<span class="_ _6"></span>转<span class="_ _7"></span>置<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">为<span class="_ _7"></span>减</span></span></div><div class="t m0 x53 h9 yc4 ff2 fs6 fc0 sc0 ls0 ws0">小符号间干<span class="_ _6"></span>扰<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">需<span class="_ _7"></span>在<span class="_ _6"></span>发<span class="_ _7"></span>送<span class="_ _7"></span>的<span class="_ _6"></span>两<span class="_ _7"></span>个<span class="_ _7"></span>数<span class="_ _6"></span>据<span class="_ _7"></span>块<span class="_ _7"></span>之<span class="_ _7"></span>间<span class="_ _7"></span>加<span class="_ _7"></span>入<span class="_ _7"></span>一<span class="_ _7"></span>定</span></span></div><div class="t m0 x53 h9 yc5 ff2 fs6 fc0 sc0 ls0 ws0">长度的数据作为<span class="_ _7"></span>保<span class="_ _6"></span>护<span class="_ _6"></span>间<span class="_ _7"></span>隔<span class="_ _1c"> </span><span class="ff4"><span class="_ _13"></span><span class="ff2">在<span class="_ _b"> </span><span class="ff1">MI<span class="_ _d"></span>M<span class="_ _a"></span>O<span class="_ _8"> </span>S<span class="_ _a"></span>C<span class="_ _10"></span><span class="ff4"><span class="_ _d"></span><span class="ff1">F<span class="_ _10"></span>r<span class="_ _10"></span>F<span class="_ _10"></span>D<span class="_ _a"></span>E<span class="_ _b"> </span><span class="ff2">系<span class="_ _6"></span>统<span class="_ _6"></span>中<span class="_ _1c"> </span><span class="ff4"></span></span></span></span></span></span></span></div><div class="t m0 x53 h9 yc6 ff2 fs6 fc0 sc0 ls0 ws0">由式<span class="_ _e"></span><span class="ff4"><span class="_ _d"></span><span class="_ _6"></span><span class="_ _1e"> </span><span class="_ _f"></span><span class="_ _d"></span><span class="_ _6"></span><span class="_ _d"></span><span class="ff2">可<span class="_ _6"></span>知<span class="_ _1d"> </span><span class="ff4"><span class="_ _18"></span><span class="ff2">分<span class="_ _6"></span>数<span class="_ _6"></span>阶<span class="_ _6"></span>傅<span class="_ _6"></span>里<span class="_ _6"></span>叶<span class="_ _6"></span>域<span class="_ _6"></span>数<span class="_ _6"></span>据<span class="_ _6"></span>的<span class="_ _6"></span>离<span class="_ _6"></span>散<span class="_ _6"></span>化<span class="_ _6"></span>将<span class="_ _7"></span>造</span></span></span></span></div><div class="t m0 x53 h9 yc7 ff2 fs6 fc0 sc0 ls0 ws0">成<span class="_ _3"> </span><span class="ff1">ch<span class="_ _10"></span>ir<span class="_ _10"></span>p<span class="_ _b"> </span><span class="ff2">周期性延拓<span class="_ _1c"> </span><span class="ff4"><span class="_ _1f"></span><span class="ff2">记加入的循环<span class="_ _6"></span>前缀<span class="_ _6"></span>为<span class="_ _2"> </span><span class="ff1">c<span class="_ _a"></span>h<span class="_ _10"></span>ir<span class="_ _10"></span>p<span class="_ _b"> </span><span class="ff2">循环<span class="_ _6"></span>前</span></span></span></span></span></span></div><div class="t m0 x53 h9 yc8 ff2 fs6 fc0 sc0 ls0 ws0">缀<span class="_ _1c"> </span><span class="ff4"><span class="fc1 sc0"></span><span class="_ _18"></span><span class="ff1"><span class="fc1 sc0">c</span><span class="fc1 sc0">h</span><span class="_ _10"></span><span class="fc1 sc0">i</span><span class="fc1 sc0">r</span><span class="_ _10"></span><span class="fc1 sc0">p</span><span class="_ _b"> </span><span class="ff2"><span class="fc1 sc0">循</span><span class="fc1 sc0">环</span><span class="fc1 sc0">前</span><span class="fc1 sc0">缀</span><span class="fc1 sc0">部</span><span class="fc1 sc0">分</span><span class="fc1 sc0">的</span><span class="fc1 sc0">数</span><span class="fc1 sc0">据</span><span class="fc1 sc0">可</span><span class="fc1 sc0">以</span><span class="fc1 sc0">写</span><span class="fc1 sc0">为</span><span class="_ _c"> </span><span class="ff4"></span></span></span></span></div><div class="t m0 xa2 h15 yc9 ff8 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">x</span></div><div class="t m0 xab he yca ff8 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">k</span></div><div class="t m0 x56 h5 yc9 ff4 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0"></span><span class="_ _b"> </span><span class="fc1 sc0"></span><span class="_ _2"> </span><span class="ff8"><span class="fc1 sc0">N</span></span></div><div class="t m0 xb6 he yca ff8 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">c</span></div><div class="t m0 x98 h5 yc9 ff4 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0"></span><span class="_"> </span><span class="ff8"><span class="fc1 sc0">n</span></span><span class="_ _e"></span><span class="_ _1d"> </span><span class="ff8">x</span></div><div class="t m0 xb7 he yca ff8 fs7 fc0 sc0 ls0 ws0">k</div><div class="t m0 x5e h5 yc9 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _7"></span><span class="ff8">N<span class="_ _3"> </span></span><span class="_ _2"> </span><span class="ff8">N</span></div><div class="t m0 xb8 he yca ff8 fs7 fc0 sc0 ls0 ws0">c</div><div class="t m0 xb9 h5 yc9 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _4"> </span><span class="ff8">n</span><span class="_ _d"></span><span class="_ _6"></span><span class="ff1">e</span></div><div class="t m0 xba h1a ycb ff1 fs7 fc0 sc0 ls0 ws0">j</div><div class="t m0 xbb hb ycc ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 xbb hb ycd ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 xbc h1a ycb ff1 fs7 fc0 sc0 ls0 ws0">c<span class="_ _10"></span>ot</div><div class="t m2 xbd h1b ycb ff4 fse fc0 sc0 ls0 ws0"></div><div class="t m0 xbe hb ycb ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _6"></span><span class="ff8">N<span class="_ _1e"> </span></span><span class="_ _0"> </span><span class="ff8">N</span></div><div class="t m0 xbf h19 yce ff8 fsc fc0 sc0 ls0 ws0">c</div><div class="t m0 x9d hb ycb ff4 fs7 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="ff8">n</span></div><div class="t m0 xc0 h17 ycf ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x82 hb ycb ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _12"> </span><span class="_ _1e"> </span><span class="_ _0"> </span><span class="ff8">N</span></div><div class="t m0 x95 h19 yce ff8 fsc fc0 sc0 ls0 ws0">c</div><div class="t m0 xc1 hb ycb ff4 fs7 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="ff8">n</span></div><div class="t m0 xa8 h17 ycf ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 xc2 hb ycb ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span><span class="ff8">t</span></div><div class="t m0 xc3 h17 ycf ff4 fsc fc0 sc0 ls0 ws0"></div><div class="t m0 x71 h9 yd0 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _7"></span></div><div class="t m0 x73 h9 yd1 ff2 fs6 fc0 sc0 ls0 ws0">加入<span class="_ _2"> </span><span class="ff1">c<span class="_ _a"></span>h<span class="_ _10"></span>ir<span class="_ _10"></span>p<span class="_ _0"> </span><span class="ff2">循环前缀之后的数据为<span class="_ _1c"> </span><span class="ff4"></span></span></span></div><div class="t m0 x72 h9 yd2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _4"> </span><span class="ffa">x</span></div><div class="t m0 xc4 he yd3 ff8 fs7 fc0 sc0 ls0 ws0">cp</div><div class="t m0 x5a h9 yd2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _c"> </span><span class="_ _e"></span><span class="ff8">x</span></div><div class="t m0 xc5 hb yd3 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 xc6 h9 yd2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _b"> </span><span class="_ _c"> </span><span class="ff8">N</span></div><div class="t m0 xb7 he yd3 ff8 fs7 fc0 sc0 ls0 ws0">c</div><div class="t m0 x5e h9 yd2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _2"> </span><span class="_ _d"></span><span class="_ _23"> </span><span class="_ _20"></span><span class="ff8">x</span></div><div class="t m0 xc7 hb yd3 ff4 fs7 fc0 sc0 ls0 ws0"></div><div class="t m0 xc8 h9 yd2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _6"></span><span class="_ _2"> </span><span class="_ _d"></span><span class="_ _23"> </span><span class="_ _16"></span><span class="ff8">x</span></div><div class="t m0 xbe he yd3 ff8 fs7 fc0 sc0 ls0 ws0">N</div><div class="t m0 x68 h19 yd4 ff8 fsc fc0 sc0 ls0 ws0">T</div><div class="t m0 xc9 hb yd3 ff4 fs7 fc0 sc0 ls0 ws0"><span class="_ _e"> </span></div><div class="t m0 x80 h9 yd2 ff4 fs6 fc0 sc0 ls0 ws0"><span class="_ _d"></span><span class="_ _6"></span><span class="_ _2"> </span><span class="_ _d"></span><span class="_ _23"> </span></div><div class="t m0 xca h5 yd5 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_ _2d"></span><span class="_ _2d"></span><span class="_ _2d"></span></div><div class="t m0 x3 h5 yd6 ff4 fs3 fc0 sc0 ls0 ws0"><span class="_"> </span><span class="_ _b"> </span><span class="ff2">电<span class="_ _b"> </span></span><span class="_"> </span><span class="_ _b"> </span><span class="ff2">子<span class="_ _b"> </span></span><span class="_"> </span><span class="_ _b"> </span><span class="ff2">学<span class="_ _3"> </span></span><span class="_"> </span><span class="_ _b"> </span><span class="ff2">报<span class="_ _2e"> </span></span><span class="_ _10"></span><span class="_ _10"></span><span class="_ _b"> </span><span class="ff2">年</span></div></div><div class="pi" data-data='{"ctm":[1.893528,0.000000,0.000000,1.893528,0.000000,0.000000]}'></div></div>