耦合Galerkin简正波解的抛物方程方法水下声传播计算

The coupled mode-parabolic equation method with Galerkin's mode solution for the underwater sound propagation

研究水平变化的海洋环境下声传播的计算方法.把Galerkin方法的简正波解应用于耦合简正波抛物方程,可同时考虑海水和海底声场计算,对水平变化的海洋环境问题的数值计算表明,在包含海水和海底的声场计算中该方法的计算结果都具有较高的精度.

A method of sound propagation in a range-dependent underwater environment is presented. This method is based on the coupled mode-parabolic equation method （CMPE） and the normal mode solution is carried out with the aid of Galerkin＇s method. The sound fields both in water volume and sediment are predicted. The numerical examples are given to illustrate the accuracy of CMPE with Galerkin＇s mode solution.