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浅海爆炸声传播损失及简正波分离实验研究
引用本文:刘立勇,王婷婷.浅海爆炸声传播损失及简正波分离实验研究[J].热带海洋学报,2011(3).
作者姓名:刘立勇  王婷婷
作者单位:南海舰队海洋水文气象中心;
摘    要:文章简要介绍了浅海声传播损失的研究背景和基本理论方法。通过1/3倍频程滤波对浅海爆炸宽带信号的不同频段在浅海的传播损失情况进行了分析,描述了浅海环境对声传播损失的影响;同时在不知道先验信息的条件下,利用垂直阵声压数据成功地进行了简正波分离,并与理想条件下Kraken简正波模型计算出的结果进行了比较分析。

关 键 词:浅海  垂直阵  传播损失  简正波  

Research on transmission loss of explosive sound in shallow water and normal mode extraction
LIU Li-yong,WANG Ting-ting Naval Oceangraphic Hydrometeorological Centre of South China Sea Fleet,Zhanjiang ,China.Research on transmission loss of explosive sound in shallow water and normal mode extraction[J].Journal of Tropical Oceanography,2011(3).
Authors:LIU Li-yong  WANG Ting-ting Naval Oceangraphic Hydrometeorological Centre of South China Sea Fleet  Zhanjiang  China
Institution:LIU Li-yong,WANG Ting-ting Naval Oceangraphic Hydrometeorological Centre of South China Sea Fleet,Zhanjiang 524001,China
Abstract:The paper presents research background and basic theory and method of acoustic transmission loss in the shallow water.The effects due to sound transmission loss by shallow water environment are described through analyzing the transmis-sion loss with explosive sound signal at different frequency range filtered by third octave.With no priori knowledge,the nor-mal modes are successfully extracted from the sound pressure data derived from the vertical liner receiver arrays(VLAs).The comparison of normal modes e...
Keywords:shallow water  vertical liner receiver array(VLA)  transmission loss  normal mode  
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