利用环境噪声进行安静目标探测  

Silence target detection by ambient noise

作　　者：李小雷[1] 高大治[1] 黎洁 李国富[3] 王宁[1] LI Xiaolei;GAO Dazhi;LI Jie;LI Guofu;WANG Ning(College of Information Science and Engineering of Ocean University of China,Qingdao 266100,China;School of Naval Architecture,Ocean&Civil Engineering of Shanghai Jiao Tong University,Shanghai 200240,China;National Ocean Technology Center,Tianjin 300112,China)

机构地区：[1]中国海洋大学信息科学与工程学院,青岛266100 [2]上海交通大学船舶海洋与建筑工程学院,上海200240 [3]国家海洋技术中心,天津300112

出　　处：《应用声学》2018年第5期636-644,共9页Journal of Applied Acoustics

基　　金：国家自然科学基金项目(11374270;11674294)

摘　　要：该文回顾了近年来该课题组利用环境噪声互相关方法和环境噪声自相关方法进行安静目标探测的主要工作。首先简单回顾了利用环境噪声互相关方法和环境噪声自相关方法进行安静目标探测的理论,然后介绍了两次利用海浪噪声进行安静目标探测的实验。通过海浪噪声实验验证了利用环境噪声互相关和自相关进行安静目标探测的可行性。最后对利用环境噪声互相关进行安静目标探测所需要的累积时间进行了讨论,并给出了累积时间的下界。This paper reviews our recent works about silence target detection using ambient noise cross correlation method and autocorrelation method.The theory of silence target detection using ambient noise cross correlation method and autocorrelation method are introduced at first.Then two experiments about target detection using surf-noise are reviewed,whose results support the theory.At last the required accumulated time in the ambient noise cross correlation method is discussed and a lower bound of the accumulated time is given.

关 键 词：环境噪声 目标探测 互相关 自相关 

分 类 号：O429[理学—声学]