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海豚声散射特性的理论建模及实验研究
引用本文:张波,马忠成,刘文章.海豚声散射特性的理论建模及实验研究[J].应用声学,2010,29(2):122-128.
作者姓名:张波  马忠成  刘文章
作者单位:大连测控技术研究所,大连,110013
摘    要:国内对蛙人和大型海洋哺乳动物声散射特性的研究很少,无法满足现代的防御需要。论文分析了海豚的回波机理,建立了海豚反向散射目标强度的球壳散射模型。采用比较法测得海豚对75kHz的声波反向散射目标强度为-25.8dB。根据实验结果,球壳散射模型对75kHz声波是适用的。

关 键 词:海豚  散射  目标强度  

Theoretical and experimental studies of the scattering characteristic of dolphin
ZHANG Bo,MA Zhong-cheng and LIU Wen-zhang.Theoretical and experimental studies of the scattering characteristic of dolphin[J].Applied Acoustics,2010,29(2):122-128.
Authors:ZHANG Bo  MA Zhong-cheng and LIU Wen-zhang
Institution:ZHANG Bo MA Zhong-Cheng LIU Wen-Zhang(DaLian Scientific Test , Control Technology Institute,DaLian 116013)
Abstract:There is little domestic study on the scattering characteristics of divers and large-scale oceanic mammals,while much information is needed for defence.The scattering mechanism of a dolphin is analyzed,and a Spherical-Shell Scattering Model is proposed to caculate the backscattering TS(Target Strength) of a dolphin.Measurement of the backscattering TS of a dolphin at 75 kHz was taken,which gave-25.8dB.Judged by the result of the experiment,the Spherical-Shell Scattering Model is suitable at 75kHz.
Keywords:Dolphin  Backscattering  Target strength  Lung
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