哈尔滨工程大学学报2026，Vol.47Issue(4)：727-736,10.DOI:10.11990/jheu.202403004
基于射线声学的浅海目标前向散射声场建模
Modeling the forward scattering sound field of targets in shallow water based on ray acoustics
摘要
Abstract
To address the complexity of calculating the forward scattering sound field of a target in shallow water wave-guides—a complexity arising from the combined influences of target scattering characteristics and environmental sound propagation properties—a ray-based model is established for the forward scattering sound field of a rigid target in such environments.The method integrates ray acoustics theory with the plane wave scattering function.The far-field calcula-tion formula for the forward scattering sound field of a rigid target in a Pekeris waveguide is derived using the virtual source method,thereby revealing the coupling relationship between the shallow water channel and the target scattering sound field in free space,as well as the sound propagation paths.Based on the established model,the forward scatter-ing sound field of a rigid sphere with a radius of 5 m was simulated.The results indicate that the forward scattering sound field calculated by the ray model shows good agreement with that calculated by the normal mode model.For high-frequency scattering sound field calculations,the proposed ray model demonstrates higher computational efficiency com-pared to the traditional normal mode model.Furthermore,the model clearly characterizes the geometric sound propaga-tion paths in shallow water waveguides,with clear physical implications.关键词
浅海波导/射线声学/前向散射/声场建模/虚源法/刚性球体/平面波散射函数/声传播路径Key words
shallow water waveguide/ray acoustics/forward scattering/sound field modeling/virtual source method/rigid sphere/plane-wave scattering function/acoustic propagation path分类
数理科学引用本文复制引用
罗嘉辉,孙超,雷波..基于射线声学的浅海目标前向散射声场建模[J].哈尔滨工程大学学报,2026,47(4):727-736,10.基金项目
国家自然科学基金项目(11534009). （11534009）
