数字海洋与水下攻防2026，Vol.9Issue(3)：283-290,8.DOI:10.19838/j.issn.2096-5753.2026.03.006
水平分层介质非相干声场空间分布特性仿真研究
Simulation Study on Spatial Distribution Characteristics of Incoherent Sound Fields in Horizontally Layered Media
黄益旺 1王思宁1
作者信息
- 1. 哈尔滨工程大学 水声技术全国重点实验室,黑龙江 哈尔滨 150001||海洋信息获取与安全工信部重点实验室(哈尔滨工程大学)工业和信息化部,黑龙江 哈尔滨 150001||哈尔滨工程大学 水声工程学院,黑龙江 哈尔滨 150001
- 折叠
摘要
Abstract
To investigate the vertical distribution of ocean acoustic fields and to provide a theoretical basis for passive source depth estimation,research on spatial distribution of incoherent acoustic fields is conducted in this paper.The analytical expression for incoherent acoustic field intensity is theoretically derived based on an ideal waveguide model.Theoretical analysis reveals that the maximum intensity consistently appears at or near the source depth for a given horizontal range,and this distribution pattern is independent of propagation distance.To test the generality of this characteristic in complex environments,numerical simulations are conducted using a normal mode model for two horizontally stratified media:horizontally stratified shallow water and a typical deep-sea sound channel.Simulation results show that,with the exception of one special case,the vertical distribution of incoherent acoustic field intensity closely follows that of the ideal waveguide,with the maximum occurring at or near the source depth.The sole exception occurs when a surface duct exists in the deep-sea sound channel and the source is placed inside that duct,causing the maximum intensity to shift away from the source depth.These results confirm the robustness of this vertical distribution characteristic in horizontally stratified media and offer a novel approach for passive source depth estimation.关键词
水平分层介质/非相干声场/简正波/声源深度估计Key words
horizontally layered medium/incoherent sound field/normal mode/acoustic source depth estimation分类
通用工业技术引用本文复制引用
黄益旺,王思宁..水平分层介质非相干声场空间分布特性仿真研究[J].数字海洋与水下攻防,2026,9(3):283-290,8.
