基于射线模型的浅海水声传播仿真研究

浅海是我国船只活动的主要区域，在计划海上实验、设计最优声纳系统和预测海上声纳性能时，水声模型被广泛地应用于预报声学环境。用射线模型为浅海声场建模，由于射线理论有足够的准确性，可以用来获得声波在空间传播的重要信息，在一定的条件下，射线声学的数学运算也比较简捷。在此结合仿真结果，证明了由射线理论给出的声线图可以给声场以直观、形象的理解，其建立的水声信道模型在工程应用上具有重要意义。

Ray Model Based Simulation of Water Acoustic Propagation in Shallow Sea

The shallow sea is the main area of activity of the vessels in China. In the planning of the experiment in set~ , design of optimal sonar systems and prediction of marine sonar performance, acoustic models are widely used in prediction of the acoustic environment. A ray model is adopted for the sound field modeling of shallow water. Because of the adequate accu racy of the ray theory, sound wave＇s important information propagating in the space can be obtained. Under a certain condi tion, the mathematical operation of ray acoustics is relatively simple. In the paper, the simulation results show that the ray di- agram given by the ray theory can give an intuitive sound field and vivid understanding. The establishment of underwater acoustic channel model has important significance in engineering applications.