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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/628b0ef6ce083560b85d571a/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x3 h3 y5 ff2 fs1 fc0 sc0 ls0 ws0">国防科技大学课程设计报告</div><div class="t m0 x4 h4 y6 ff1 fs1 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 ya ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 yb ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 yc ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 yd ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 ye ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x5 h5 yf ff3 fs2 fc0 sc0 ls1 ws0">基于</div><div class="t m0 x6 h6 y10 ff1 fs2 fc0 sc0 ls0 ws0">MA<span class="_ _0"></span>TLAB</div><div class="t m0 x7 h5 yf ff3 fs2 fc0 sc0 ls0 ws0">的</div><div class="t m0 x8 h6 y10 ff1 fs2 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x9 h5 yf ff3 fs2 fc0 sc0 ls0 ws0">仿真设计</div><div class="t m0 xa h2 y11 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y15 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y19 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xb h2 y1b ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="c xc y1c w2 h7"><div class="t m0 xd h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">院（系）名</div><div class="t m0 xe h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 xf h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">称</div><div class="t m0 x10 h2 y1f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x11 y1c w3 h7"><div class="t m0 xd h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">：</div><div class="t m0 x12 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> <span class="_"> </span> </div></div><div class="c xc y20 w2 h7"><div class="t m0 xd h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">专</div><div class="t m0 x12 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x13 h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">业</div><div class="t m0 x14 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x15 h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">名</div><div class="t m0 x16 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x17 h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">称</div><div class="t m0 xf h2 y1f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x11 y20 w3 h7"><div class="t m0 xd h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">：</div><div class="t m0 x12 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div></div><div class="c xc y21 w2 h7"><div class="t m0 xd h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">学</div><div class="t m0 x12 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x13 h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">生</div><div class="t m0 x14 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x15 h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">姓</div><div class="t m0 x16 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x17 h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">名</div><div class="t m0 xf h2 y1f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x11 y21 w3 h7"><div class="t m0 xd h8 y1d ff2 fs3 fc0 sc0 ls0 ws0">：</div><div class="t m0 x12 h9 y1e ff1 fs3 fc0 sc0 ls0 ws0"> <span class="_"> </span> </div></div><div class="c xc y22 w2 ha"><div class="t m0 xd h8 y23 ff2 fs3 fc0 sc0 ls0 ws0">学</div><div class="t m0 x12 h9 y24 ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x13 h8 y23 ff2 fs3 fc0 sc0 ls0 ws0">生</div><div class="t m0 x14 h9 y24 ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x15 h8 y23 ff2 fs3 fc0 sc0 ls0 ws0">学</div><div class="t m0 x16 h9 y24 ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x17 h8 y23 ff2 fs3 fc0 sc0 ls0 ws0">号</div><div class="t m0 xf h2 y25 ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x11 y22 w3 ha"><div class="t m0 xd h8 y23 ff2 fs3 fc0 sc0 ls0 ws0">：</div><div class="t m0 x12 h9 y24 ff1 fs3 fc0 sc0 ls0 ws0"> </div></div><div class="t m0 x2 h2 y26 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y27 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y28 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y29 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y2a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y2b ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x18 hb y2c ff2 fs4 fc0 sc0 ls0 ws0">二</div><div class="t m0 x19 hc y2d ff4 fs5 fc0 sc0 ls0 ws0">○</div><div class="t m0 x1a hb y2c ff2 fs4 fc0 sc0 ls0 ws0">一九<span class="ls1">年一</span>月</div><div class="t m0 x1b hd y2e ff1 fs4 fc0 sc0 ls0 ws0"> </div><div class="t m0 xb he y2f ff5 fs6 fc0 sc0 ls0 ws0"> </div><div class="t m0 xb he y30 ff5 fs6 fc0 sc0 ls0 ws0"> </div><div class="t m0 xb he y31 ff5 fs6 fc0 sc0 ls0 ws0"> </div></div><div class="pi" data-data='{"ctm":[1.611792,0.000000,0.000000,1.611792,0.000000,0.000000]}'></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/628b0ef6ce083560b85d571a/bg2.jpg"><div class="t m0 x1c hf y32 ff5 fs4 fc0 sc0 ls2 ws0">1.<span class="ff6 ls0"> </span></div><div class="t m0 x1d hb y33 ff2 fs4 fc0 sc1 ls1 ws0">实验背景</div><div class="t m0 x1e h10 y32 ff5 fs4 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1f h2 y34 ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x20 h11 y35 ff2 fs0 fc0 sc0 ls0 ws0">技术是一种无线环境下的高速多载波传输技术，无线信道的频率响应<span class="_ _1"></span>曲线大多</div><div class="t m0 x2 h11 y36 ff2 fs0 fc0 sc0 ls0 ws0">是非平坦的，而</div><div class="t m0 x21 h2 y37 ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x22 h11 y36 ff2 fs0 fc0 sc0 ls0 ws0">技术的主要思<span class="_ _1"></span>想是：将<span class="_ _1"></span>信道分成若干正<span class="_ _1"></span>交子信道，将<span class="_ _1"></span>高速数据信<span class="_ _1"></span>号</div><div class="t m0 x2 h11 y38 ff2 fs0 fc0 sc0 ls0 ws0">转换成并行的低<span class="_ _1"></span>速子数据<span class="_ _1"></span>流，<span class="_ _0"></span>调制到在每<span class="_ _1"></span>个子信道<span class="_ _1"></span>上进行传输。<span class="_ _0"></span>正<span class="_ _1"></span>交信号可<span class="_ _1"></span>以通过在接收端</div><div class="t m0 x2 h11 y39 ff2 fs0 fc0 sc0 ls0 ws0">采用相关技术来分开，这样可以减少子信道之间的相互干扰</div><div class="t m0 x23 h2 y3a ff1 fs0 fc0 sc0 ls0 ws0">(ISI)<span class="_ _1"></span> </div><div class="t m0 x24 h11 y39 ff2 fs0 fc0 sc0 ls0 ws0">。每个子信道上的信号带</div><div class="t m0 x2 h11 y3b ff2 fs0 fc0 sc0 ls0 ws0">宽小于信道的相关带<span class="_ _1"></span>宽，因此每<span class="_ _1"></span>个子信道上可以看<span class="_ _1"></span>成平坦性衰落，从而<span class="_ _1"></span>可以消除码<span class="_ _1"></span>间串扰，</div><div class="t m0 x2 h11 y3c ff2 fs0 fc0 sc0 ls0 ws0">而且由于每个子<span class="_ _1"></span>信道的带<span class="_ _1"></span>宽仅仅是原信道<span class="_ _1"></span>带宽的一小部分<span class="_ _1"></span>，信道均<span class="_ _1"></span>衡变得相对容易<span class="_ _1"></span>。</div><div class="t m0 x25 h2 y3d ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1f h11 y3e ff2 fs0 fc0 sc0 ls0 ws0">在</div><div class="t m0 x26 h2 y3f ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 xc h11 y3e ff2 fs0 fc0 sc0 ls0 ws0">传播过程中<span class="_ _1"></span>，高速信息<span class="_ _1"></span>数据流通过串<span class="_ _1"></span>并变换分配到速<span class="_ _1"></span>率相对较<span class="_ _1"></span>低的若干子信</div><div class="t m0 x2 h11 y40 ff2 fs0 fc0 sc0 ls0 ws0">道中传输，<span class="_ _2"></span>每个子信道中<span class="_ _1"></span>的符号周期<span class="_ _1"></span>相对增加，<span class="_ _2"></span>这样可减少因<span class="_ _1"></span>无线信道多径<span class="_ _1"></span>时延扩展所<span class="_ _1"></span>产生</div><div class="t m0 x2 h11 y41 ff2 fs0 fc0 sc0 ls0 ws0">的时间弥散性对<span class="_ _1"></span>系统造成<span class="_ _1"></span>的码间干扰。<span class="_ _3"></span>另外，<span class="_ _3"></span>由于引入保护间<span class="_ _1"></span>隔，<span class="_ _3"></span>在保护间隔大于最大多径</div><div class="t m0 x2 h11 y42 ff2 fs0 fc0 sc0 ls0 ws0">时延扩展的情况<span class="_ _1"></span>下，<span class="_ _2"></span>可以最大限度地<span class="_ _1"></span>消除多径带来<span class="_ _1"></span>的符号间干扰。<span class="_ _2"></span>如果用循<span class="_ _1"></span>环前缀作为<span class="_ _1"></span>保护</div><div class="t m0 x2 h11 y43 ff2 fs0 fc0 sc0 ls0 ws0">间隔，还可避免<span class="_ _1"></span>多径带来<span class="_ _1"></span>的信道间干扰，<span class="_ _1"></span><span class="ls3">如图</span></div><div class="t m0 x27 h2 y44 ff1 fs0 fc0 sc0 ls0 ws0">1</div><div class="t m0 x28 h11 y43 ff2 fs0 fc0 sc0 ls3 ws0">所示<span class="ls0">。</span></div><div class="t m0 x29 h2 y44 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="c x2 y45 w4 h12"><div class="t m0 x2a h13 y46 ff7 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0"> </span></div></div><div class="c x2 y47 w4 h14"><div class="t m0 x3 h11 y48 ff2 fs0 fc0 sc0 ls0 ws0">图</div><div class="t m0 x2b h15 y49 ff5 fs0 fc0 sc0 ls0 ws0">1</div><div class="t m0 xc h2 y4a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2c h11 y48 ff2 fs0 fc0 sc0 ls0 ws0">时域上的</div><div class="t m0 x2d h2 y4a ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x18 h11 y48 ff2 fs0 fc0 sc0 ls0 ws0">系统图</div><div class="t m0 x1d h2 y4a ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="t m0 x2 h2 y4b ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1f h11 y4c ff2 fs0 fc0 sc0 ls0 ws0">在</div><div class="t m0 x26 h2 y4b ff1 fs0 fc0 sc0 ls0 ws0">OFMD</div><div class="t m0 xc h11 y4c ff2 fs0 fc0 sc0 ls0 ws0">系统中，信<span class="_ _1"></span>息通过正交<span class="_ _1"></span>子载频承载上<span class="_ _1"></span>变频后，通过无<span class="_ _1"></span>线信道，<span class="_ _1"></span>最终传输到目</div><div class="t m0 x2 h11 y4d ff2 fs0 fc0 sc0 ls0 ws0">标接收机，经下<span class="_ _1"></span>变频后分<span class="_ _1"></span>解判决得到信号<span class="_ _1"></span>恢复的<span class="ls3">结果</span>。</div><div class="t m0 x29 h2 y4e ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_"> </span> </div><div class="t m0 x2e h10 y4f ff5 fs4 fc0 sc0 ls0 ws0">2<span class="ls4">. </span></div><div class="t m0 x11 hb y50 ff2 fs4 fc0 sc1 ls1 ws0">目的与要求</div><div class="t m0 x2f h10 y4f ff5 fs4 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1f h2 y51 ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x30 h11 y52 ff2 fs0 fc0 sc0 ls0 ws0">系统参数如表</div><div class="t m0 x2d h2 y51 ff1 fs0 fc0 sc0 ls0 ws0">1</div><div class="t m0 x31 h11 y52 ff2 fs0 fc0 sc0 ls0 ws0">所示（具体可<span class="_ _1"></span>参考</div><div class="t m0 x32 h2 y51 ff1 fs0 fc0 sc0 ls0 ws0">IEEE802.1<span class="_ _1"></span>6d</div><div class="t m0 x23 h11 y52 ff2 fs0 fc0 sc0 ls0 ws0">标准）<span class="_ _4"></span>：</div><div class="t m0 x33 h2 y51 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1a h11 y53 ff2 fs0 fc0 sc0 ls0 ws0">表</div><div class="t m0 x34 h15 y54 ff5 fs0 fc0 sc0 ls0 ws0">1</div><div class="t m0 x35 h2 y55 ff1 fs0 fc0 sc0 ls5 ws0"> </div><div class="t m0 x36 h11 y53 ff2 fs0 fc0 sc0 ls0 ws0">系统参数</div><div class="t m0 x37 h2 y55 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="c x20 y56 w5 h14"><div class="t m0 x38 h11 y48 ff2 fs0 fc0 sc0 ls0 ws0">特性</div><div class="t m0 x39 h2 y4a ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y56 w6 h14"><div class="t m0 x3a h11 y48 ff2 fs0 fc0 sc0 ls0 ws0">参数</div><div class="t m0 xf h2 y4a ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y57 w5 h16"><div class="t m0 x14 h11 y49 ff2 fs0 fc0 sc0 ls0 ws0">调制方式</div><div class="t m0 x3b h2 y58 ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y57 w6 h16"><div class="t m0 x3c h2 y59 ff1 fs0 fc0 sc0 ls0 ws0">QPSK </div></div><div class="c x20 y5a w5 h17"><div class="t m0 x14 h2 y5b ff1 fs0 fc0 sc0 ls6 ws0">FFT</div><div class="t m0 x3d h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">点数</div><div class="t m0 x3b h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y5a w6 h17"><div class="t m0 x3d h2 y5b ff1 fs0 fc0 sc0 ls0 ws0">256</div><div class="t m0 x3e h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">点</div><div class="t m0 x3f h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y5d w5 h16"><div class="t m0 x40 h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">数据子载波</div><div class="t m0 x2 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y5d w6 h16"><div class="t m0 x3d h2 y5f ff1 fs0 fc0 sc0 ls0 ws0">192</div><div class="t m0 x3e h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">点</div><div class="t m0 x3f h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y60 w5 h14"><div class="t m0 x14 h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">内插导频</div><div class="t m0 x3b h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y60 w6 h14"><div class="t m0 x41 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0">8</div><div class="t m0 x42 h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">点</div><div class="t m0 x43 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y61 w5 h16"><div class="t m0 x44 h2 y5f ff1 fs0 fc0 sc0 ls7 ws0">CP</div><div class="t m0 x45 h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">长度</div><div class="t m0 x3e h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y61 w6 h16"><div class="t m0 x16 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0">64</div><div class="t m0 x46 h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">点</div><div class="t m0 x2 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y62 w5 h14"><div class="t m0 x47 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x48 h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">符号长度</div><div class="t m0 x49 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y62 w6 h14"><div class="t m0 x4a h2 y5b ff1 fs0 fc0 sc0 ls0 ws0">64+256=320</div><div class="t m0 x49 h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">点</div><div class="t m0 x1f h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y63 w5 h16"><div class="t m0 x40 h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">基带采样率</div><div class="t m0 x2 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y63 w6 h16"><div class="t m0 x3c h2 y64 ff1 fs0 fc0 sc0 ls0 ws0">4MHz </div></div><div class="c x20 y65 w5 h14"><div class="t m0 x4b h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">子载波频率间隔</div><div class="t m0 x4c h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y65 w6 h14"><div class="t m0 x38 h2 y66 ff1 fs0 fc0 sc0 ls0 ws0">15.625KHz<span class="_ _1"></span> </div></div><div class="c x20 y67 w5 h16"><div class="t m0 x47 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x48 h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">符号时间</div><div class="t m0 x49 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y67 w6 h16"><div class="t m0 x3a h2 y64 ff1 fs0 fc0 sc0 ls0 ws0">80µ<span class="_ _3"></span>s<span class="_ _1"></span> </div></div><div class="c x20 y68 w5 h14"><div class="t m0 x12 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x4d h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">帧短符号数</div><div class="t m0 x4e h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y68 w6 h14"><div class="t m0 x41 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0">1</div><div class="t m0 x42 h11 y5c ff2 fs0 fc0 sc0 ls0 ws0">个</div><div class="t m0 x43 h2 y5b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y69 w5 h16"><div class="t m0 x12 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x4d h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">帧长符号数</div><div class="t m0 x4e h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y69 w6 h16"><div class="t m0 x41 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0">1</div><div class="t m0 x42 h11 y5e ff2 fs0 fc0 sc0 ls0 ws0">个</div><div class="t m0 x43 h2 y5f ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x20 y6a w5 h18"><div class="t m0 x4f h2 y6b ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x50 h11 y6c ff2 fs0 fc0 sc0 ls0 ws0">帧数据符号数</div><div class="t m0 x1f h2 y6b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y6a w6 h18"><div class="t m0 x16 h2 y6b ff1 fs0 fc0 sc0 ls0 ws0">10</div><div class="t m0 x46 h11 y6c ff2 fs0 fc0 sc0 ls0 ws0">个</div><div class="t m0 x2 h2 y6b ff1 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="t m0 x1f h11 y6d ff2 fs0 fc0 sc0 ls0 ws0">本系统中，<span class="_ _5"></span>信号带宽</div><div class="t m0 x51 h2 y6e ff1 fs0 fc0 sc0 ls0 ws0">4MHz</div><div class="t m0 x52 h11 y6d ff2 fs0 fc0 sc0 ls0 ws0">，<span class="_ _5"></span>分为</div><div class="t m0 x53 h2 y6e ff1 fs0 fc0 sc0 ls0 ws0">256</div><div class="t m0 x54 h11 y6d ff2 fs0 fc0 sc0 ls0 ws0">个子载波<span class="_ _5"></span>（每个</div><div class="t m0 x55 h2 y6e ff1 fs0 fc0 sc0 ls0 ws0">OFDM</div><div class="t m0 x56 h11 y6d ff2 fs0 fc0 sc0 ls0 ws0">符号包含</div><div class="t m0 x57 h2 y6e ff1 fs0 fc0 sc0 ls0 ws0">256</div><div class="t m0 x58 h11 y6d ff2 fs0 fc0 sc0 ls0 ws0">个子载波）<span class="_ _4"></span>，</div></div><div class="pi" data-data='{"ctm":[1.611792,0.000000,0.000000,1.611792,0.000000,0.000000]}'></div></div>
基于MATLAB的OFDM仿真设计实验报告