<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta name="generator" content="pdf2htmlEX">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css">
<link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css">
<link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/625417f374bc5c0105135555/raw.css">
<script src="https://static.pudn.com/base/js/compatibility.min.js"></script>
<script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script>
<script>
try{
pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({});
}catch(e){}
</script>
<title></title>
</head>
<body>
<div id="sidebar" style="display: none">
<div id="outline">
</div>
</div>
<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/625417f374bc5c0105135555/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">大连理工大学</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">博士学位论文</div><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">麦克风阵列语音增强的若干方法研究</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">姓名：王冬霞</div><div class="t m0 x3 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">申请学位级别：博士</div><div class="t m0 x4 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">专业：信号与信息处理</div><div class="t m0 x5 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">指导教师：殷福亮</div><div class="t m0 x6 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">20070401</div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
</body>
</html>
<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/625417f374bc5c0105135555/bg2.jpg"><div class="t m1 x7 h3 y9 ff2 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">大连理Ｊ：大学博七学位论文</span></div><div class="t m2 x8 h4 ya ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">摘</span></div><div class="t m0 x9 h5 ya ff2 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">要</span></div><div class="t m3 xa h6 y1 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">在车载系统、电话会议与多媒体会议等语音处理系统中，由于受到混响、背景噪声</span></div><div class="t m4 xb h6 yb ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">及干扰等因素的影响，麦克风拾取的信号通常为带噪的语音信号。这样，不仅影响语音</span></div><div class="t m5 xc h6 yc ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">的可懂度，而且影响语音处理系统的整体性能。因此，需要进行有效的噪声抑制，以增</span></div><div class="t m6 xb h6 yd ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">强语音信号的质量。</span></div><div class="t m7 xd h6 ye ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">通常情况下，单麦克风语音增强方法具有良好的噪声抑制性能，但在复杂的声学环</span></div><div class="t m5 xb h6 yf ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">境下，其噪声抑制性能急剧退化。麦克风阵列具有空间选择特性与高信号增益特性，因</span></div><div class="t m4 xb h6 y10 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">而成为非手持式智能语音处理系统中捕捉说话人语音的重要手段。近年来，基于麦克风</span></div><div class="t m8 xe h6 y11 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">阵列的语音增强方法已经逐渐成为语音增强技术的研究热点。</span></div><div class="t m3 xf h6 y12 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">本文以阵列处理和自适应处理作为信号处理的主要工具，以全带波束形成与子带波</span></div><div class="t m9 xe h6 y13 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">束形成、远场波束形成与近场波束形成、传统波束形成与盲波束形成等几个方面为主线，</span></div><div class="t m4 x10 h6 y14 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">对麦克风阵列语音增强方法进行深入研究。此外，本文还从理论上分析了麦克风阵列拓</span></div><div class="t ma xe h6 y15 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">扑结构对麦克风阵列语音增强系统性能的影响。</span></div><div class="t mb x11 h6 y16 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">本文的主要研究成果包括：</span></div><div class="t mc xd h6 y17 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（１）全带波束形成与单通道语音增强相结合方法研究。考虑到空时滤波和谱减法的</span></div><div class="t m4 x12 h6 y18 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">各自优势，提出一种联合波束形成与谱减法的麦克风阵列语音增强方法。该方法采用子</span></div><div class="t m5 x10 h6 y19 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">阵代替单个麦克风组成嵌套麦克风阵列，提高了阵列的空间滤波能力；采用谱减法对波</span></div><div class="t md x12 h6 y1a ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">束形成输出端的残留噪声进行抑制，进一步提高了语音信号质量。仿真实验结果表明，</span></div><div class="t me x12 h6 y1b ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">该方法具有良好的噪声抑制性能。</span></div><div class="t mf xf h6 y1c ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（２）基于子带自适应波束形成的麦克风阵列语音增强方法研究。考虑到全带自适应</span></div><div class="t m4 x13 h6 y1d ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">波束形成具有较慢的收敛速度和较高的计算复杂度，本文提出一种基于过采样余弦调制</span></div><div class="t m4 x13 h6 y1e ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">滤波器组的子带自适应波束形成语音增强方法。该方法针对其在噪声与混响环境下存在</span></div><div class="t m10 x12 h6 y1f ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">的语音信号抵消现象，采用归一化泄漏ＬＭＳ算法产生噪声参考信号，并用子带平均相</span></div><div class="t m4 x13 h6 y20 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">干函数来约束子带自适应波束形成器系数的更新过程；同时，采用改进的后置滤波器抑</span></div><div class="t m5 x13 h6 y21 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">制残留噪声。仿真实验结果表明，子带自适应波束形成麦克风阵列语音增强方法改善了</span></div><div class="t m11 x10 h6 y22 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">自适应波束形成的收敛速度，且具有较好的噪声抑制效果。</span></div><div class="t m12 x11 h6 y23 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（３）基于近场波束形成的麦克风阵列语音增强方法研究。当声源位于阵列近场时，</span></div><div class="t m4 x13 h6 y24 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">阵列所有的入射波为球面波而非平面波，此时如果采用远场波束形成方法来增强近场语</span></div><div class="t m4 x13 h6 y25 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">音信号，那么麦克风阵列语音增强系统的性能就会下降。为此，本文利用近场球面波的</span></div><div class="t m4 x14 h6 y26 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">波前弯曲率，提出了基于近场固定波束形成器和近场优化波束形成器的两种近场波束形</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/625417f374bc5c0105135555/bg3.jpg"><div class="t m2 x15 h3 y27 ff2 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">王冬霞：麦克风阵列语音增强的若干方法研究</span></div><div class="t m13 x16 h6 y28 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">成麦克风阵列语音增强方法。实验结果表明，近场波束形成语音增强方法改善了近场声</span></div><div class="t m14 x16 h6 y29 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">学环境下的语音信号质量。</span></div><div class="t m15 x17 h6 y2a ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（４）基于盲波束形成的麦克风阵列语音增强方法研究。大多数麦克风阵列语音增强</span></div><div class="t m16 x18 h6 y2b ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">方法以传统波束形成方法为基础，需要期望语音信号波达方向与阵列几何结构等先验知</span></div><div class="t m16 x18 h6 y2c ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">识。但在实际复杂的声学环境下，波达方向的准确估计具有一定困难。为此，本文分别</span></div><div class="t m16 x18 h6 y2d ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">提出了基于高阶累积量和基于盲源分离的两种盲波束形成麦克风阵列语音增强方法。仿</span></div><div class="t m17 x18 h6 y2e ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">真结果表明，在语音信号波达方向未知的情况下，盲波束形成麦克风阵列语音增强方法</span></div><div class="t m18 x18 h6 y2f ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">具有较好的噪声抑制能力。</span></div><div class="t m15 x19 h6 y30 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（５）阵列拓扑结构对麦克风阵列语音增强系统性能影响的研究。根据阵列信号处理</span></div><div class="t m16 x1a h6 y31 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">理论，麦克风空间摆放对麦克风阵列语音增强性能具有一定的影响。与语音增强算法本</span></div><div class="t m16 x1a h6 y32 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">身相比，有关麦克风阵列拓扑结构方面的研究相对较少。因此，本文以阵列波束形成性</span></div><div class="t m19 x1a h6 y6 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">能、阵列输出信噪比和时延估计性能（即时延估计Ｃｒａｍ６ｒ—Ｒａｏ界限）作为衡量麦克风阵</span></div><div class="t m17 x1a h6 y33 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">列系统性能的三个方面，从理论上推导了麦克风阵列空间摆放对上述麦克风阵列系统性</span></div><div class="t m1a x1a h6 y34 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">能的影响。并针对麦克风阵列语音增强中常见的麦克风阵列拓扑结构，进行仿真实验，</span></div><div class="t m1b xc h6 y35 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">验证了理论分析的结论。</span></div><div class="t m17 xc h6 y36 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">关键词：语音增强；麦克风阵列；波束形成；子带自适应波束形成：近场波束形成：盲</span></div><div class="t m1c xc h7 y37 ff2 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">波束彤成；阵列拓扑结构；高阶累积量；Ｃｒａｍ６ｒ．Ｒａｏ界限</span></div><div class="t m1d x1b h8 y38 ff2 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎ</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/625417f374bc5c0105135555/bg4.jpg"><div class="t m1e x1c h3 y39 ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">大连理Ｔ大学博士学位论文</span></div><div class="t m1f x1d h6 y3a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｓｔｕｄｙ</span></div><div class="t m20 x1e h8 y3b ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m21 x1f h4 y3b ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｍｅｔｈｏｄｓ</span></div><div class="t m22 x20 h6 y3b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｏｒ</span></div><div class="t m23 x21 h3 y3a ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｓｐｅｅｃｈ</span></div><div class="t m24 x22 h6 y3b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｅｎｈａｎｃｅｍｅｎｔ</span><span class="_ _0"> </span><span class="fs1"><span class="fc1 sc0">ｂａｓｅｄ</span></span></div><div class="t m20 x23 h8 y3b ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m25 x24 h4 y3c ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m26 x25 h3 y3c ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ａｒｒａｙ</span></div><div class="t m27 x26 h3 y3d ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ａｂｓｔ</span></div><div class="t m28 x27 h9 y3d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒａｃｔ</span></div><div class="t m0 x19 h9 y3e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｉｎ</span></div><div class="t m29 x28 ha y3e ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎ</span></div><div class="t m2a x29 h9 y3f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｔｅｌｌｉｇｅｎｔ</span></div><div class="t m2b x2a h9 y3f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m2c x2b h9 y3e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｍｕｎｉｃａｔｉｏｎ</span></div><div class="t m2d x2c h9 y3f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｐｐｌｉｃａｔｉｏｎ</span></div><div class="t m2e x2d h9 y40 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｃｈ</span></div><div class="t m2f x2e ha y40 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｓ</span></div><div class="t m2 x2f h9 y40 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m30 x30 h9 y3f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃａｒ，ｖｉｄｅｏｃｏｎｆｅｒｅｎｃｅ</span></div><div class="t m2b x31 h9 y40 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m31 x18 h9 y41 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｕｌｔｉｍｅｄｉａ</span></div><div class="t m32 x32 h9 y42 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｆｅｒｅｎｃｅ，ｔｈｅ</span></div><div class="t m33 x33 h9 y43 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m34 x34 h9 y43 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｇｎａｌ</span></div><div class="t m35 x35 h9 y41 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｃｅｉｖｅｄ</span></div><div class="t m36 x36 h9 y43 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｙ</span></div><div class="t m29 x37 ha y41 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m37 x38 h9 y44 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m38 x24 h9 y41 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m25 x39 h9 y41 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆｔｅｎ</span></div><div class="t m39 x3a h9 y43 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｒｒｕｐｔｅｄ</span></div><div class="t m36 x3b h9 y43 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｙ</span></div><div class="t m2 x3c h9 y41 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m3a x18 h9 ye ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｃｋｇｒｏｕｎｄ</span></div><div class="t m3b x3d h9 ye ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ，ｒｅｖｅｒｂｅｒａｔｉｏｎ</span></div><div class="t m2b x3e h9 y45 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m3c x3f h9 y45 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｔｅｒｆｅｒｅｎｃｅ．Ｔｈｅｓｅ</span></div><div class="t m1d x2d h9 y46 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍａｙ</span></div><div class="t m3d x40 ha y45 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃａｕｓｅ</span></div><div class="t m2 x41 h9 y45 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m35 x42 h9 y46 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｇｒａｄａｔｉｏｎ</span></div><div class="t m35 x43 h9 y45 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m33 x44 h9 y46 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m3e x18 h9 y47 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｑｕａｌｉｔｙ，ｗｈｉｃｈ</span></div><div class="t m3f x45 h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｉｌｌ</span></div><div class="t m2e x46 h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｈａｖｅ</span></div><div class="t m29 x47 ha y48 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m2b x48 h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｄ</span></div><div class="t m40 x49 h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｆｌｕｅｎｃｅ</span></div><div class="t m41 x26 ha y48 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m2 x4a h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m42 x4b h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m43 x36 h9 yf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m35 x4c h9 y48 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m2b x4d h9 yf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m44 x4e hb yf ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｃｅｓｓｉｎｇ</span></div><div class="t m3f x4f h9 yf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｙｓｔｅｍ．</span></div><div class="t m26 x18 hb y49 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｆｏｒ</span></div><div class="t m35 xf h9 y49 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｃｈ</span></div><div class="t m29 x50 ha y49 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎ</span></div><div class="t m35 x3d h9 y49 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄｖｅｒｓｅ</span></div><div class="t m3b x51 h9 y49 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｃｏｕｓｔｉｃ</span></div><div class="t m45 x52 h9 y4a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｖｉｒｏｎｍｅｎｔ，ｔｈｅｒｅｆｏｒｅ</span></div><div class="t m46 x53 h9 y49 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｔ</span></div><div class="t m0 x54 hb y4b ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m47 x55 hb y4a ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｅｃｅｓｓａｒｙ</span></div><div class="t m2b x56 h8 y49 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m48 x57 h9 y4c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｖｅｌｏｐ</span></div><div class="t m49 x58 h9 y49 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｆｆｅｃｔｉｖｅ</span></div><div class="t m25 x59 h9 y4b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m4a x18 hb y4d ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｐｐｒｅｓｓ</span></div><div class="t m4a x5a h9 y4e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄｓ</span></div><div class="t m4b x5b hb y4e ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m4c x51 ha y4e ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｃｏｖｅｒ</span></div><div class="t m42 x5c h9 y4e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m34 x5d h9 y4d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｒｉｇｉｎａｌ</span></div><div class="t m2b x6 h9 y4d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m36 x5e h9 y4e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｒｏｍ</span></div><div class="t m42 x5f h9 y4e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m37 x60 h9 y4f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m4d x61 h9 y4d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｇｎａｌ．</span></div><div class="t m4e x62 h9 y50 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｔｈｅ</span></div><div class="t m1b x50 h6 y51 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m35 x63 h9 y50 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m26 x64 h9 y50 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｏｍｅ</span></div><div class="t m35 x65 h9 y50 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｖｅｎｔｉｏｎａｌ</span></div><div class="t m39 x1b h9 y51 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｎｇｌｅ—ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m4f x66 hb y51 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m50 x39 h6 y50 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m4a x67 h9 y50 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄｓ</span></div><div class="t m51 x1a hb y52 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｅｒｉｏｕｓｌｙ</span></div><div class="t m26 x68 hb y52 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｇｒａｄｅｓ</span></div><div class="t m52 x69 hb y32 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m31 x6a hb y32 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m43 x6b h9 y32 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｖｉｒｏｎｍｅｎｔ</span></div><div class="t m37 x6 h9 y32 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｈｅｒｅ</span></div><div class="t m53 x6c h9 y53 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｖｅｒｂｅｒａｔｉｏｎ</span></div><div class="t m2b x6d h9 y53 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m42 x6e h9 y53 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｔｅｒｆｅｒｅｎｃｅ</span></div><div class="t m54 x6f h6 y53 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｅｘｉｓｔ．Ｗｉｔｈ</span></div><div class="t m55 x1a h9 y54 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐａｔｉａｌ</span></div><div class="t m56 x70 h9 y54 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｉｌｔｅｒｉｎｇ</span></div><div class="t m2b x71 h9 y55 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m33 x69 h9 y54 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｈｉｇｈｅｒ</span></div><div class="t m34 x6b h9 y54 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｇｎａｌ</span></div><div class="t m57 x72 h9 y54 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｇａｉｎ，ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m58 x73 h6 y54 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ（ｏｒ</span></div><div class="t m59 x74 h6 y54 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｕｌｔｉ—ｍｉｃｒｏｐｈｏｎｅｓ）ｂｅｃｏｍｅｓ</span></div><div class="t m44 x75 ha y55 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｌｌ</span></div><div class="t m5a x1a h9 y56 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｄｅａｌ</span></div><div class="t m5b x17 h9 y57 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗａｙ</span></div><div class="t m36 x1e h9 y56 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m5c x76 h9 y58 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｍｐｒｏｖｉｎｇ</span></div><div class="t m33 x77 h9 y58 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m52 x78 h9 y58 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｑｕａｌｉｔｙ</span></div><div class="t m0 x79 h9 y56 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m2 x7a h9 y56 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m2a x7b h9 y58 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｔｅｌｌｉｇｅｎｔ</span></div><div class="t m2c x2d h9 y56 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｍｕｎｉｃａｔｉｏｎ</span></div><div class="t m5d x7c h3 y58 ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｙｓｔｅｍ．Ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m5e xc hb y59 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m33 x17 h9 y59 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m5f x7d h9 y15 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m60 x7e h9 y15 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m35 x7f h9 y15 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｈａｓ</span></div><div class="t m48 x80 hb y7 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｃｅｎｔｌｙ</span></div><div class="t m2e x81 h9 y5a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅｅｎ</span></div><div class="t m29 x82 ha y5a ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m3b x83 h9 y5a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｅａｒｃｈ</span></div><div class="t m25 x84 h9 y5a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｏｃｕｓ</span></div><div class="t m0 x24 h9 y15 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m33 x85 h9 y7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m21 x86 hb y7 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｃｅｓｓｉｎｇ．</span></div><div class="t m49 x62 h4 y5b ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｉｓ</span></div><div class="t m61 x87 hb y5c ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐａｐｅｒ</span></div><div class="t m11 x88 h9 y5b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅａｌｓ</span></div><div class="t m2e x63 h9 y5b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｉｔｈ</span></div><div class="t m26 x89 h9 y5b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｏｍｅ</span></div><div class="t m33 x7 h9 y5d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m50 x7a h6 y5b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m33 x8a h9 y16 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄｓ．ｔｈｅ</span></div><div class="t m48 x8b h9 y5c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｕｒｐｏｓｅ</span></div><div class="t m35 x86 h9 y5b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m3a x8c h9 y5b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｈｉｃｈ</span></div><div class="t m38 x8d h9 y5b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m2b x8e h8 y5b ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m4b xc h9 y5e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｖｅｌｏｐ</span></div><div class="t m62 x8f h9 y5f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｒａｍｅｗｏｒｋ</span></div><div class="t m35 x51 h9 y5f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m37 x90 h9 y5e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 x91 hb y5e ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m33 x92 h9 y5e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m64 x93 h9 y60 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m31 x94 h9 y5e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｅｃｈｎｏｌｏｇｙ</span></div><div class="t m0 x95 h9 y5f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m2 x96 h9 y5f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m49 x97 h9 y5f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｉｆｆｅｒｅｎｔ</span></div><div class="t m65 xc h9 y61 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｃｏｕｔｓｔｉｃ</span></div><div class="t m66 x87 h9 y61 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｖｉｒｏｎｍｅｎｔｓ．Ａｌｌ</span></div><div class="t m42 x21 h9 y61 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m31 x5 h9 y62 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｐｐｒｏａｃｈｅｓ</span></div><div class="t m67 x98 ha y61 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｅ</span></div><div class="t m68 x99 h9 y61 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｔｕｄｉｅｄ</span></div><div class="t m31 x9a h9 y62 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｌｏｎｇ</span></div><div class="t m11 x56 h9 y61 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｒｅｅ</span></div><div class="t m69 x9b h9 y62 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｌｉｎｅｓ，ｆａｒ－ｆｉｅｌｄ</span></div><div class="t m25 x9c ha y61 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｖｓ．</span></div><div class="t m6a xc h9 y63 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｅａｒ—ｆｉｅｌｄ</span></div><div class="t m6b x9d h4 y64 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ，ｆｕｌｌ—ｂａｎｄ</span></div><div class="t m43 x9e h9 y63 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｖｓ．ｓｎｂｂａｎｄ</span></div><div class="t m34 x9f h6 y64 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ，ａｎｄ</span></div><div class="t m35 x8b h9 y63 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｖｅｎｔｉｏｎａｌ</span></div><div class="t m40 xa0 h9 y63 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｖｓ．ｂｌｉｎｄ</span></div><div class="t m6c xc h9 y65 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ，ｒｅｓｐｅｃｔｉｖｅｌｙ．Ｉｎ</span></div><div class="t m6d xa1 hb y65 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄｄｉｔｉｏｎ，ａ</span></div><div class="t m48 x2c hb y66 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｔａｉｌｅｄ</span></div><div class="t m6e x37 h9 y67 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎａｌｙｓｉｓ</span></div><div class="t m44 x66 hb y66 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m42 x4d h9 y66 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m6f x42 h9 y65 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｌａｔｉｏｎｓｈｉｐ</span></div><div class="t m70 x25 h9 y66 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅｔｗｅｅｎ</span></div><div class="t m36 xb h9 y68 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 x32 hb y68 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m71 xa2 h9 y68 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｆｉｇｕｒａｔｉｏｎ</span></div><div class="t m2f x78 hb y69 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m63 xa3 hb y68 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m33 xa4 h9 y68 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｙｓｔｅｍ</span></div><div class="t m43 xa5 h9 y6a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m38 x2e h9 y69 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m34 x4c h9 y69 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｌｓｏ</span></div><div class="t m35 xa6 h9 y68 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｇｉｖｅｎ</span></div><div class="t m0 xa7 h9 y69 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m31 xa8 hb y69 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m34 xa9 hb y68 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐａｐｅｒ．</span></div><div class="t m4e xa h9 y6b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｔｈｅ</span></div><div class="t m72 xaa h9 y6b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍａｉｎ</span></div><div class="t m73 xab h9 y6b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｔｒｉｂｕｔｉｏｎｓ</span></div><div class="t m31 xac h9 y6b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆｔｈｅ</span></div><div class="t m61 x7f hb y6c ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐａｐｅｒ</span></div><div class="t m2 x26 h9 y6b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｅ</span></div><div class="t m74 xad ha y6b ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｓ</span></div><div class="t m75 x81 h9 y6b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｏｌｌｏｗｓ：</span></div><div class="t m39 xa h3 y6d ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（１）Ｓｔｕｄｙ</span></div><div class="t m41 x45 ha y6e ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m76 xae h9 y6d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｂｉｎｇ</span></div><div class="t m1c xaf h9 y6e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｕｌｌ—ｂａｎｄ</span></div><div class="t m39 x1 h9 y6f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ、＾，ｉｍ</span></div><div class="t m34 x60 h9 y6f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｎｇｌｅ</span></div><div class="t m26 x66 hb y6e ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｈａｎｎｅｌ</span></div><div class="t m33 xb0 h9 y6f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m77 xb1 h7 y6e ff3 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m2 xb h6 y70 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ．Ｗｉｔｈ</span></div><div class="t m42 xb2 h9 y70 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m78 x5b h6 y71 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄｖａｎｔａｇｅｓ</span></div><div class="t m35 xb3 h9 y70 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m79 x3e h9 y72 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐａｔｉａｌ</span></div><div class="t m7a xb4 h9 y72 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｉｌｔｅｒｉｎｇ，ａ</span></div><div class="t m7b x36 h3 y70 ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m35 xb5 h9 y70 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m2b xb6 h9 y72 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m50 xb7 h6 y70 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｒｔｈａｎｃｅｍｅｍ</span></div><div class="t m31 x43 h9 y70 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m41 x3c ha y70 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m36 xb h9 y73 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m26 x32 h9 y73 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｍｙ</span></div><div class="t m0 x5b h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m7c xb8 h9 y73 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｒｅｑｕｅｎｃｙ</span></div><div class="t m60 xb9 h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｏｍａｉｎ</span></div><div class="t m38 xb4 h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m7d x35 h9 y73 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｐｏｓｅｄ</span></div><div class="t m2b x82 h8 y74 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m44 xba hb y73 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｐｐｒｅｓｓ</span></div><div class="t m42 xbb h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m25 xbc h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m0 xbd h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m29 x3a ha y74 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎ</span></div><div class="t m7e xbe h9 y74 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｃｌｏｓｕｒｅ．Ａ</span></div><div class="t m4a xe h9 y75 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍａｓｋｉｎｇ</span></div><div class="t m39 xaa h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｒｅｓｈｏｌｄ</span></div><div class="t m3a xbf h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m34 xc0 h9 y75 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｃｔｒａｌ</span></div><div class="t m2d x1c h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｂｔｒａｃｔｉｏｎ</span></div><div class="t m60 x81 h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m38 xc1 h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m42 xc2 h9 y1f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄｄｉｔｉｏｎａｌｌｙ</span></div><div class="t m2e x85 h9 y77 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｕｓｅｄ</span></div><div class="t m2b x3a h8 y77 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m4a xbe hb y75 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｐｐｒｅｓｓ</span></div><div class="t m42 x31 h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m34 xe h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｉｄｕａｌ</span></div><div class="t m25 x28 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m35 xb2 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m7f xc3 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｅｒ</span></div><div class="t m2e xb3 h9 y79 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｕｔｐｕｔ．Ｓｏｍｅ</span></div><div class="t m80 xc4 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｍｕｌａｔｉｏｎｓ</span></div><div class="t m79 x38 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｕｌｔｓ</span></div><div class="t m81 xc5 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｍｏｎｓｔｒａｔｅ</span></div><div class="t m3f xc6 h9 y7a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｔ</span></div><div class="t m68 xc7 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅｓｉｄｅｓ</span></div><div class="t m2b xc8 h9 y78 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｌｏｗ</span></div><div class="t m82 xe h9 y7b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｐｕｔａｔｉｏｎ</span></div><div class="t m83 x3d h9 y7b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｐｌｅｘｉｔｙ，ｎｏｉｓｅ</span></div><div class="t m39 x65 h9 y7c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｄｕｃｔｉｏｎ</span></div><div class="t m43 xc9 h9 y7d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m35 xca h9 y7c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m42 xcb h9 y7c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m7d xcc h9 y7d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｐｏｓｅｄ</span></div><div class="t m26 x39 h9 y7c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m38 x6f h9 y7c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m2 xcd h9 y7c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅｔｔｅｒ</span></div><div class="t m0 x8d h6 y7c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｎ</span></div><div class="t m3f xe h9 y7e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｔ</span></div><div class="t m35 xce h9 y7e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m25 xcf h9 y7e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｔｈｅｒ</span></div><div class="t m42 xd0 h9 y7e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄｓ．</span></div><div class="t m35 xd h6 y7f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（２）Ｓｔｕｄｙ</span></div><div class="t m41 xc3 ha y80 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m4a xd1 h9 y80 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｂｂａｎｄ</span></div><div class="t m84 x78 h9 y81 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄａｐｔｉｖｅ</span></div><div class="t m5f x7a h9 y81 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m31 x55 h9 y80 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m37 x23 h9 y7f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m5e x58 hb y7f ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m33 x4f h9 y7f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m85 xe h9 y82 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m86 xd2 h9 y83 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ．Ｃｏｎｓｉｄｅｒｉｎｇ</span></div><div class="t m2e x9e h9 y82 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｌｏｗ</span></div><div class="t m87 x7a hb y83 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｖｅｒｇｅｎｃｅ</span></div><div class="t m31 x8a h9 y83 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｄ</span></div><div class="t m2b xb6 h9 y82 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m43 x4d h9 y83 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｐｕｔａｔｉｏｎ</span></div><div class="t m44 xc7 h9 y83 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｍｐｌｅｘ</span></div><div class="t m35 xd3 h9 y82 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m88 xe h6 y84 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｕｌｌ—ｂａｎｄ</span></div><div class="t m84 x50 h9 y85 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄａｐｔｉｖｅ</span></div><div class="t m31 xd4 h9 y85 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｎａｆｏｒｍｉｎｇ，ａ</span></div><div class="t m4a xd5 h9 y84 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｂｂａｎｄ</span></div><div class="t m3b xd6 h9 y84 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｄｅａ</span></div><div class="t m44 x93 hb y84 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｉｔｈ</span></div><div class="t m37 xd7 hb y84 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m89 xd8 h9 y85 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｖｅｒｓａｍｐｌｅｄ</span></div><div class="t m35 x4e h9 y86 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｃｏｓｉｎｅ·ｍｏｄｕｌａｔｅｄ</span></div><div class="t m8a xe h9 y87 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｉｌｔｅｒ</span></div><div class="t m31 xd9 h9 y87 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｎｋｓ</span></div><div class="t m38 x32 h9 y87 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m35 xda h9 y88 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｐｐｌｉｅｄ</span></div><div class="t m34 x2 h9 y87 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｔｏ</span></div><div class="t m2 x33 h9 y87 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m8b x5d h6 y87 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｕｌｌ－ｂａｎｄ</span></div><div class="t m44 xdb h9 y88 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ．Ａ</span></div><div class="t m4a x9a h9 y87 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｂｂａｎｄ</span></div><div class="t m84 x8b h9 y88 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄａｐｔｉｖｅ</span></div><div class="t m64 xdc h9 y88 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m35 xe h9 y89 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m37 xdd h9 y8a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 xd4 hb y8a ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m2b xde h9 y8a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m8c x3e h6 y89 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m60 x81 h9 y89 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m0 xc1 hb y89 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m70 xc2 hb y26 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｕｓ</span></div><div class="t m35 xc5 h9 y8a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｅｓｅｎｔｅｄ</span></div><div class="t m52 xbd hb y26 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m31 x95 hb y26 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m31 xdf h9 y8b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐａｐｅｒ．Ｔｈｅ</span></div><div class="t m31 x10 h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｒｍａｌｉｚｅｄ</span></div><div class="t m35 xe0 h9 y8d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｌｅａｋｙ</span></div><div class="t m8d xe1 h6 y8c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ＬＭＳ</span></div><div class="t m35 xe2 h9 y8d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｌｇｏｒｉｔｈｍ</span></div><div class="t m38 x7 h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m2e xe3 h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｕｓｅｄ</span></div><div class="t m0 x35 h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m8e x2c h9 y8d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｌｏｃｋｉｎｇ</span></div><div class="t m8f xca h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｉｌｔｅｒ</span></div><div class="t m2b x9a h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m29 x23 ha y8c ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m4a xe4 h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｂｂａｎｄ</span></div><div class="t m90 xe5 h9 y8c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅａｎ</span></div><div class="t m91 xe6 h9 y8e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｈｅｒｅｎｃｅ</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/625417f374bc5c0105135555/bg5.jpg"><div class="t m92 xe7 h3 y27 ff3 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">千冬霞：麦克风阵列语音增强的若干方法研究</span></div><div class="t m3b x18 h9 y8f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｕｎｃｔｉｏｎ</span></div><div class="t m38 xaa h9 y8f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m35 xe8 h9 y8f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｔｒｏｄｕｃｅｄ</span></div><div class="t m2b xe9 h8 y8f ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m36 xde hb y8f ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｔｒｏｌ</span></div><div class="t m42 x3e h9 y3c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m70 xe3 h9 y8f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｂｂａｎｄ</span></div><div class="t m4a xea hb y28 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄａｐｔｉｖｅ</span></div><div class="t me x37 h9 y90 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｃｅｓｓｉｎｇ，ａｌｌ</span></div><div class="t m35 xeb h9 y3c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m7f xec h9 y3c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｈｉｃｈ</span></div><div class="t m93 xed ha y3c ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃａｎ</span></div><div class="t m44 xee hb y3c ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｄｕｃｅ</span></div><div class="t m31 x3c hb y3c ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m33 x18 h9 y91 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m34 xef h9 y91 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｇｎａｌ</span></div><div class="t m3b xf0 h9 y92 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃａｎｃｅｌｌａｔｉｏｎ</span></div><div class="t m48 xac h9 y91 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｒｏｕｇｈｔ</span></div><div class="t m36 xf1 h9 y93 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｙ</span></div><div class="t m35 xf2 h9 y92 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｖｅｒｂｅｒａｔｉｏｎ．Ａ</span></div><div class="t m2e xf3 h9 y94 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｏｄｉｆｉｅｄ</span></div><div class="t m1c x61 h9 y93 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｏｓｔｆｉｌｔｅｒ</span></div><div class="t m38 x6f h9 y94 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m4b xf4 h9 y93 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄｏｐｔｅｄ</span></div><div class="t m2b xf5 h8 y94 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m44 x1a hb y95 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｐｐｒｅｓｓ</span></div><div class="t m34 xf6 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｉｄｕａｌ</span></div><div class="t m94 xf7 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ．Ｓｉｍｕｌａｔｉｏｎｓ</span></div><div class="t m79 x80 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｕｌｔｓ</span></div><div class="t m90 xf8 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｈｏｗ</span></div><div class="t m0 xf9 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｔ</span></div><div class="t m2 x55 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m7d xcc h9 y96 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｐｏｓｅｄ</span></div><div class="t m60 x42 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m35 x96 h9 y1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｃｈｉｅｖｅｓ</span></div><div class="t m0 xfa h9 y97 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆａｓｔ</span></div><div class="t m87 x1a hb yb ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｖｅｒｇｅｎｃｅ</span></div><div class="t m61 x76 hb yb ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｄ</span></div><div class="t m22 xfb h6 y98 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m29 xfc ha y98 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m72 xde h9 yb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｇｏｏｄ</span></div><div class="t m25 xfd h9 y98 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m95 xe3 hb yb ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｐｐｒｅｓｓｉｏｎ</span></div><div class="t m96 xfe h9 yb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ．</span></div><div class="t m97 xd9 h6 y99 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（３）Ｓｔｕｄｙ</span></div><div class="t m98 xff ha y9a ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m99 x69 h9 y9a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｅａｒ—ｆｉｅｌｄ</span></div><div class="t m5f x100 h9 y99 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m31 xd6 h9 y9a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m36 xf9 h9 y99 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 x101 hb y99 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m2b xec h9 y99 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m85 x96 h9 y9b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m1c x1a h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ．Ｗｉｔｈ廿ｌｅ</span></div><div class="t m9a xbf h6 y9d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｄｖａｎｔａｇｅ</span></div><div class="t m35 xfd h9 y9c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m42 x72 h9 y9d ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｈｅｒｉｃａｌ</span></div><div class="t m9b x102 h8 y9c ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎａｔｕｒｅ</span></div><div class="t m35 x103 h9 y9c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m3a x104 h9 y9c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｏｕｎｄ</span></div><div class="t m33 xcc h9 y9c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗａｖｅｆｒｏｎｔ．ａ</span></div><div class="t m36 x105 h9 y9e ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m5e x106 hb y9e ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m33 x1a h9 y9f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m64 x28 h9 ya0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m26 x107 h9 ya1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m31 xfd h9 ya1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m41 xf1 ha ya1 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m11 x108 h9 ya1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｅａｒ－ｆｉｅｌｄ</span></div><div class="t m5f x99 h9 y9f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m38 x109 h9 ya1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m35 xa6 h9 y9f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｅｓｅｎｔｅｄ</span></div><div class="t m0 xb1 h9 ya1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m2 x10a h9 ya1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m34 x3b hb y9f ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐａｐｅｒ．</span></div><div class="t m35 x1a h9 ya2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｄｉｓｔａｎｃｅ</span></div><div class="t m9c x50 h9 ya2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｉｓｃｒｉｍｉｎａｔｉｏｎ</span></div><div class="t m2e x10b h9 ya2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｕｓｅｄ</span></div><div class="t m35 xb3 h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｈｅｒｅ</span><span class="_ _1"> </span><span class="fc1 sc0">ｒｅｄｕｃｅｓ</span></div><div class="t m2 x10c h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m2b x27 h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｄ</span></div><div class="t m2 x73 h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｆｆｅｃｔ</span></div><div class="t m35 x10d h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m2e x10e h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｏｔｈ</span></div><div class="t m71 x10f h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｖｅｒｂｅｒａｔｉｏｎ</span></div><div class="t m22 x96 h6 ya3 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m25 x25 h9 ya3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m29 x75 ha ya4 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m42 xc h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m33 xce h9 ya5 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m9d xe0 h9 ya5 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｇｎａｌ．Ｓｉｍｕｌａｔｉｏｎｓ</span></div><div class="t m79 x49 h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｕｌｔｓ</span></div><div class="t m9e x110 h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｍｏｎｓｔｒａｔｅ</span></div><div class="t m3f x93 h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｔ</span></div><div class="t m2 x111 h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m7d xf3 h9 ya6 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｐｏｓｅｄ</span></div><div class="t m60 x112 h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m34 x113 h9 y2f ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｘｈｉｂｉｔｓ</span></div><div class="t m29 x114 ha ya7 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m2 x115 h9 ya7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅｔｔｅｒ</span></div><div class="t m25 xc h9 ya8 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m39 x116 h9 ya8 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｄｕｃｔｉｏｎ</span></div><div class="t m89 x71 h9 ya9 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m0 x5c h6 ya8 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｎ</span></div><div class="t m25 x117 h9 ya8 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｔｈｅｒ</span></div><div class="t m42 x118 h9 ya8 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄｓ．</span></div><div class="t m18 x62 h6 yaa ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（４）Ｓｔｕｄｙ</span></div><div class="t m41 xf0 ha yab ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m25 xf7 h9 yab ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｌｉｎｄ</span></div><div class="t m24 x10b h9 yaa ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m31 x80 h9 yab ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m36 x2c h9 yaa ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m5e x119 hb yaa ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m2b xc5 h9 yaa ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m5f x39 h9 yab ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m6e x11a h9 yac ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ．</span></div><div class="t m9e x1a h9 yad ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｃｏｎｓｉｄｅｒｉｎｇ</span></div><div class="t m42 x3d h9 yae ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m2 x11b h9 yae ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｆｆｅｃｔ</span></div><div class="t m35 x63 h9 yae ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m6e x64 h9 yad ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｔｅｅｒｉｎｇ</span></div><div class="t m9b x11c h8 yae ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｖｅｃｔｏｒ</span></div><div class="t m74 x26 ha yae ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｒｒｏｒｓ</span></div><div class="t m98 x27 ha yae ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m9f x11d h4 yad ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m35 xc5 h9 yae ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m4f x109 hb yad ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m64 x9b h9 y12 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m31 x115 h9 y12 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m41 x1a ha yaf ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m35 xf h9 yaf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｖｅｎｔｉｏｎａｌ</span></div><div class="t ma0 xf7 h9 yb0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ，ａ</span></div><div class="t m25 x91 h9 yaf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｌｉｎｄ</span></div><div class="t ma1 x102 h4 y13 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m31 x11e h9 yb1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂａｓｅｄ</span></div><div class="t m37 x11f h9 y13 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 x6f hb y13 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t ma2 x44 hb y13 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t m50 xc h6 yb2 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m60 x1f h9 yb2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m38 xe9 h9 yb2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m7d xde h9 yb3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｐｏｓｅｄ</span></div><div class="t m0 x34 h9 yb4 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎ</span></div><div class="t m42 x80 h9 yb2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t ma3 x120 hb yb3 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐａｐｅｒ．Ｉｔ</span></div><div class="t m2e xf9 h9 yb4 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｏｅｓ</span></div><div class="t m1d x10d h8 yb4 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｔ</span></div><div class="t m36 xb6 h9 yb4 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｅｅｄ</span></div><div class="t m22 x121 h6 yb5 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｙ</span></div><div class="t m11 x122 h9 yb5 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｉｏｒ</span></div><div class="t m4e xed h9 yb2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｋｎｏｗｌｅｄｇｅ</span></div><div class="t m35 x123 h9 yb6 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m65 xc h9 yb7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｉｒｅｃｔｉｏｎ</span></div><div class="t m35 xf6 h9 yb7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t ma4 x3d h6 yb8 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒｉｖａｌ（ＤＯＡ）ａｎｄ</span></div><div class="t m63 xa1 hb yb8 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t ma5 x80 h9 yb7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍａｎｉｆｏｌｄ．Ｓｉｍｕｌａｔｉｏｎｓ</span></div><div class="t m79 x40 h9 yb7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｕｌｔｓ</span></div><div class="t m26 x61 h9 yb9 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｈｏｗ</span></div><div class="t m3f x105 h9 yb9 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｔ</span></div><div class="t m42 xbe h9 yb9 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m2e x124 h9 yba ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｏｐｏｓｅｄ</span></div><div class="t m11 xc h9 ybb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｌｉｎｄ</span></div><div class="t m5f xcf h9 ybc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｆｏｒｍｉｎｇ</span></div><div class="t m60 x51 h9 ybb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｅｔｈｏｄ</span></div><div class="t m6e x52 h9 ybb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｘｈｉｂｉｔｓ</span></div><div class="t m72 x125 h9 ybc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｇｏｏｄ</span></div><div class="t m25 x126 h9 ybb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｎｏｉｓｅ</span></div><div class="t m35 x127 h9 ybc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｐｐｒｅｓｓｉｏｎ</span></div><div class="t m89 x4c h9 ybd ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m41 x128 ha ybe ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｖｅｎ</span></div><div class="t m35 x97 h9 ybe ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｗｉｔｈ</span></div><div class="t m31 x9c hb ybe ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t ma6 xc h9 ybf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｕｎｋｎｏｗｎ</span></div><div class="t m11 xf6 h9 yc0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｒｉｏｒ</span></div><div class="t m62 x45 h9 yc0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｋｎｏｗｌｅｄｇｅ</span></div><div class="t m2e x7e h9 ybf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｕｃｈ</span></div><div class="t m74 x78 ha ybf ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｓ</span></div><div class="t m3a x7 h9 ybf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ＤＯＡ．</span></div><div class="t m97 x62 h6 yc1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">（５）Ｓｔｕｄｙ</span></div><div class="t m41 x129 ha yc2 ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｎ</span></div><div class="t m42 x12a h9 yc2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m42 x90 h9 yc3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｌａｔｉｏｎｓｈｉｐ</span></div><div class="t m4a x12b h9 yc2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅｔｗｅｅｎ</span></div><div class="t m37 x12c h9 yc3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 xb5 hb yc3 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m79 x11f h9 yc3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐａｔｉａｌ</span></div><div class="t m5c x9b h9 yc4 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｌａｃｅｍｅｎｔ</span></div><div class="t m22 x12d h6 yc5 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m42 x9c h9 yc5 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t ma7 xc h6 yc6 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m35 x12e h9 yc7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m25 x129 h9 yc6 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m2b x12f h9 yc8 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t ma8 x130 h9 yc7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ．Ｃｒｉｔｅｒｉｏｎｓ</span></div><div class="t m39 xca h9 yc9 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｎｃｌｕｄｉｎｇ</span></div><div class="t m63 x2f hb yc9 ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t ma9 x131 h5 yc9 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｅａｍｐａｔｔｅｍ</span></div><div class="t m1c x43 h9 yc9 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｐｏｎｓｅ，</span></div><div class="t m5e xc hb yca ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m35 x132 h9 yca ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｇａｉｎ</span></div><div class="t m2b xe8 h9 ycb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｎｄ</span></div><div class="t m82 x11b h9 ycb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｃｒａｍ６ｒ．Ｒａｏ</span></div><div class="t m7f xb3 h9 ycb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｂｏｕｎｄ</span></div><div class="t m35 x3f h9 ycb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span><span class="_ _2"> </span><span class="fc1 sc0">ｔｉｍｅ</span></div><div class="t m35 xf8 h9 yca ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｌａｙ</span></div><div class="t m30 x53 h9 ycb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｓｔｉｍａｔｉｏｎ</span></div><div class="t m67 x4c ha ycc ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｅ</span></div><div class="t m4b x30 h9 ycc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｄｅｒｉｖｅｄ</span></div><div class="t m2b x95 h8 ycc ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t m3b x133 h9 ycc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｖａｌｕａｔｅ</span></div><div class="t m2 x9c h9 ycd ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m9f xc h4 yce ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m72 x12e h9 yce ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m63 x89 hb yce ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t m2b x72 h9 yce ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｙｓｔｅｍ</span></div><div class="t m2 x108 h9 ycf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｆｏｒ</span></div><div class="t m29 x134 ha ycf ff3 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａ</span></div><div class="t m31 x135 h9 yce ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｇｉｖｅｎ</span></div><div class="t m11 x136 h9 yd0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｒｒａｙ</span></div><div class="t maa x137 h9 yd0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｃｏｎｆｉｇｕｒａｔｉｏｎ．Ｅｘｐｅｒｉｍｅｎｔａｌ</span></div><div class="t m79 x138 h9 y1a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｒｅｓｕｌｔｓ</span></div><div class="t m26 xc h9 y1b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｈｏｗ</span></div><div class="t m3f xdd h9 y1b ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈａｔ</span></div><div class="t m55 x139 h9 yd1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐａｔｉａｌ</span></div><div class="t m2b xe1 h9 yd1 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｌａｃｅｍｅｎｔ</span></div><div class="t m35 x5c h9 yd2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m89 xb9 h9 yd3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅｓ</span></div><div class="t mab x126 h9 yd2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｆｆｅｃｔｓ</span></div><div class="t m2 x136 h9 yd2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m9f x38 h4 yd3 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｅｒｆｏｒｍａｎｃｅ</span></div><div class="t m35 xeb h9 yd4 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｆ</span></div><div class="t m2b xb0 h9 yd3 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t mac xbe h7 yd4 ff3 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｅｎｈａｎｃｅｍｅｎｔ</span></div><div class="t m82 xc h9 y1c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｙｓｔｅｍ，ａｎｄ</span></div><div class="t m35 x76 h9 y1c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｏｐｔｉｍａｌ</span></div><div class="t m85 x107 h9 y1c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｍｉｃｒｏｐｈｏｎｅｓ</span></div><div class="t m2b xa3 h9 y1c ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｐｌａｃｅｍｅｎｔ</span></div><div class="t m38 x98 h9 yd5 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｓ</span></div><div class="t m34 x11d h9 yd5 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ａｂｌｅ</span></div><div class="t m2b x8a h8 yd5 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｏ</span></div><div class="t mad xf3 h9 yd6 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｉｇｎｉｆｉｃａｎｔｌｙ</span></div><div class="t m4a x13a h9 yd6 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｉｍｐｒｏｖｅ</span></div><div class="t m42 x13b h9 yd7 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｔｈｅ</span></div><div class="t m33 x13c h9 yd8 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｓｐｅｅｃｈ</span></div><div class="t mae xc h6 yd9 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ｑｕａｌｉｔｙ．</span></div><div class="t m2b xc h9 yda ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｋｅｙ</span></div><div class="t maf xd9 h9 ydb ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｗｏｒｄｓ：Ｓｐｅｅｃｈ</span></div><div class="t mb0 x2 h6 ydb ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｅｎｈａｎｃｅｍｅｎｔ；Ｍｉｃｒｏｐｈｏｎｅ</span></div><div class="t m60 xc1 hb yda ff3 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ａｒｒａｙ；</span></div><div class="t mb1 x6e h9 yda ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｂｅａｍｆｏｒｍｉｎｇ；Ｓｕｂｂａｎｄ</span></div><div class="t mb2 xc h9 ydc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ａｄａｐｔｉｖｅ</span></div><div class="t mb3 x13d h9 ydc ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｂｅａｍｆｏｒｍｉｎｇ；Ｎｅａｒ—ｆｉｅｌｄ</span></div><div class="t m27 x120 h9 ydd ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｂｅａｍｆｏｒｍｉｎｇ；Ｂｌｉｎｄ</span></div><div class="t m9b x24 h9 yde ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｂｅａｍｆｏｒｍｉｎｇ；Ａｒｒａｙ</span></div><div class="t mb4 xc h9 ydf ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｃｏｎｆｉｇｕｒａｔｉｏｎ；Ｈｉｇｈｅｒ</span></div><div class="t mb5 x13e h9 ye0 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｏｒｄｅｒ</span></div><div class="t mb6 x65 h6 ye1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｃｕｍｕｌａｎｔ；Ｃｒａｍ∈ｒ－Ｒａｎ</span></div><div class="t m2f x55 h9 ye2 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Ｂｏｕｎｄ</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
