浅海孤立子内波对海洋声传播损失与声源定位的影响研究

马树青;杨士莪;朴胜春;李婷婷

振动与冲击 ›› 2009, Vol. 28 ›› Issue (11) : 73-78.

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PDF(2828 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (11) : 73-78.
论文

浅海孤立子内波对海洋声传播损失与声源定位的影响研究

  • 马树青,杨士莪,朴胜春,李婷婷
作者信息 +

Research on the influence of ocean sound propagation and source location by shallow water internal solitary waves

  • MA Shu-qing, PIAO Sheng-chun, Yang Shi-e
Author information +
文章历史 +

摘要

孤立子内波是浅海大陆架海域普遍存在的水文现象,它的存在将改变海水稳定分层的声速、密度剖面,引起声场结构的改变。文中应用抛物方程方法研究二维与三维情况下浅海孤立子内波对声传播损失的影响,并研究孤立子内波的存在对水平阵波束形成定位的影响。通过仿真结果,对常规波束形成、MVDR及MUSIC等波束形成方法进行比较。

Abstract

Internal solitary wave is a usual phenomenon in shallow water near the continental shelf. It changes the stable profile of water density and sound speed, causes distortion in sound field structure. In this paper, the influence of shallow water solitary wave on sound transmission loss and beamforming of horizontal array had been investigated, using PE method for both 2-dimensional and 3-dimensional cases. Simulation results of beamforming by CBF, MVDR and MUSIC are also compared.

关键词

孤立子内波 / 抛物方程 / 波束形成

Key words

Internal solitary waves / Parabolic Equation (PE) / Beam forming

引用本文

导出引用
马树青;杨士莪;朴胜春;李婷婷. 浅海孤立子内波对海洋声传播损失与声源定位的影响研究[J]. 振动与冲击, 2009, 28(11): 73-78
MA Shu-qing;PIAO Sheng-chun;Yang Shi-e. Research on the influence of ocean sound propagation and source location by shallow water internal solitary waves[J]. Journal of Vibration and Shock, 2009, 28(11): 73-78

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