噪声与振动控制2025，Vol.45Issue(4)：45-51,7.DOI:10.3969/j.issn.1006-1355.2025.04.008
浅海信道中水下航行体散射声场传播机理研究
Propagation Mechanism of Rigid Spherical Scattering Sound Fields in Shallow Water Waveguides
摘要
Abstract
The echo characteristics of underwater vehicles are significantly affected by the serious reverberation inter-ference in shallow-water waveguides.The echo pulses,after multiple reflections between the sea surface and the seabed,ex-hibit complex and diverse propagation patterns,which severely restricts the identification of the acoustic scattering character-istics of underwater vehicles.In response to the acoustic scattering problem of rigid sphere targets under typical shallow-wa-ter channel waveguides,this paper proposes a computational method that combines the theoretical solution of rigid sphere acoustic scattering under the condition of a point sound source with virtual image source method.The effectiveness of the proposed method is verified through the comparison of the results with finite element simulation results.Empirical formulas and a three-parameter model are used respectively for computation of the sea surface and seabed reflection coefficients.The attenuation law of echo pulse amplitudes due to the reflection and absorption between the sea surface and seabed is analyzed and obtained.The acoustic scattering echo characteristics of the Benchmark submarine model including the command station and stern rudder are calculated,and the formation mechanism of the echo pulse sequence considering the superposition of two reflection modes of the sea surface and seafloor is also presented.The research methodology and findings of this paper give a contribution to the extraction and identification of complex target acoustic scattering characteristics under the condi-tion of shallow-water waveguide.关键词
声学/浅海信道/刚性球/声散射特性/虚源法/球面波Key words
acoustics/shallow water waveguide/rigid sphere/acoustic scattering characteristics/virtual source meth-od/spherical wave分类
通用工业技术引用本文复制引用
彭绍康,彭子龙,周富霖,王重凯..浅海信道中水下航行体散射声场传播机理研究[J].噪声与振动控制,2025,45(4):45-51,7.基金项目
国家自然科学基金资助项目(52201397) （52201397）
装备综合保障技术重点实验室稳定支持资助项目(WDZC20235250311) （WDZC20235250311）
