声信号在海中传播时,海水介质下边界海底的声学特性对海中声信号的传播有着显著的影响。在声学研究领域及海洋学研究领域,国内外对浅海海底的物理参数及其声学特性已经获得了大量的研究结果。近年来国外对深海沉积物声学特性的研究日益重视。国内关于深海声传播的研究工作也已经开始,对于深海反转点会聚区声场的研究获得了很有意义的理 Acoustic signals propagate in the sea, the acoustic properties of the seabed beneath the seawater medium have a significant impact on the propagation of acoustic signals in the sea. In the field of acoustic research and oceanographic research, a great deal of research results have been obtained on the physical parameters and acoustic characteristics of shallow seabed at home and abroad. In recent years, foreign countries have paid more and more attention to the acoustic properties of deep-sea sediments. The research work on the sound transmission in deep ocean in China has also begun. The research on the sound field in the point of deep sea inversion point has gained a great deal of meaning