文章摘要
刘贯领.一种基于谱减的声纳噪声自适应消除方法[J].声学技术,2011,(5):399~402
一种基于谱减的声纳噪声自适应消除方法
A spectral subtraction based adaptive noise cancellation method for sonar system
投稿时间:2010-09-14  修订日期:2011-12-16
DOI:
中文关键词: 谱减  噪声自适应抵消  声纳  波束域
英文关键词: spectral subtraction  noise adaptive cancellation  sonar  beam domain
基金项目:
作者单位E-mail
刘贯领  edward202@163.com 
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中文摘要:
      噪声自适应消除是声纳信号处理的重要研究内容之一。传统的噪声自适应抵消算法需要单独的阵列(阵元)以获得不含期望信号的参考噪声信号,这在实际工程应用中往往是不现实的。提出在不增加阵元的情况下,通过相邻两个阵元输出信号进行加权处理,合成一路不包含给定方向信号的噪声信号;同时,借鉴语音信号处理中普遍应用的谱减降噪处理方法,达到噪声自适应抵消的目的。
英文摘要:
      Adaptive Noise Suppression is one of the key research areas of sonar signal processing.Conventional adaptive noise suppression methods necessitate additional array(or element) to obtain pure noisy signal,which is not realizable in practical engineering applications.Without the additional array,a method is proposed in this paper which combines the outputs of two-adjacent elements to produce a third signal that free of the signal from a certain direction.This,together with the spectral-subtraction procedure(which have found wide spread applications in speech signal processing),leads to effective noise cancellation.
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