深海典型海底地形对声传播特性的影响

Influence of Typical Seafloor Topography on Sound Propagation Characteristics in Deep Sea

起伏较大的海底地形对海洋中的声传播有着重要的影响。基于Bellhop高斯波束跟踪模型,研究深海环境中几种不同海底地貌下的声传播特性。搭建由不同的典型海底地形构建的模拟声场,仿真模拟分析声场中声源的辐射情况。通过观测不同水体环境下声传播情况及声场任意位置的声传播损失情况,总结对比不同海底地形下的声传播规律,得出声传播特性,为实际深海声场水声工作提供理论参考。

The undulating sea floor topography has an important influence on the sound propagation in the ocean.Based on the Bellhop Gaussian beam tracking model,this paper studies the acoustic propagation characteristics of several different seafloor landforms in the deep sea environment.By building a simulated sound field constructed by different typical submarine terrain,the radiation situation of sound source in the sound field is analyzed by simulation.By observing the sound propagation in different water environments and the sound propagation loss in any position of the sound field,the sound propagation law under different submarine topography is summarized and compared to obtain the propagation characteristics,it provides a theoretical reference for the practical underwater acoustic work in deep sea sound field.