基于时域自适应搜索法的典型海温垂直结构声特征提取研究  

Research on the extraction of acoustical characteristics of typical vertical ocean temperature structure based on adaptive searching method

作　　者：李振锋[1] 陈希[2] 李妍[2,3] 梁毅[2] 赵娟[1] 刘荆武[4] 

机构地区：[1]中国人民解放军63898部队 [2]解放军理工大学气象学院 [3]东南大学自动化学院 [4]广州军区气象水文中心

出　　处：《海洋通报》2010年第4期361-366,共6页Marine Science Bulletin

摘　　要：针对层剥算法从海水声回波记录中反演海温垂直结构特征的不稳定问题,利用自适应搜索算法ASM(Adaptive searching method),从声回波记录中提取海温垂直结构的稳定冲激响应,然后利用层剥算法对所得冲激响应进行反演,得到海温垂直结构的声特征,结果表明,该方法可以较好地解决层剥算法反演的不稳定性问题。To overcome the instability of Layered Peeling algorithm in ocean acoustic inversion for vertical ocean temperature structure with raw acoustical echo, Adaptive searching method has been studied to get the stable impulse response of the vertical ocean temperature structure, and then using the Layered Peeling algorithm to get the vertical ocean temperature structure based on the inversed impulse response. The result shows that this method can solve the instability of inverse problem and the inverse result satisfies the precision need.

关 键 词：海温垂直结构 冲激响应 自适应搜索算法 

分 类 号：P731.11[天文地球—海洋科学] P733.23