A numerical simulation method for ocean ambient noise field mentioned by Cron and Sherman model

Cron and Sherman^[1] mentioned that noise in the ocean was a superposition of an isotropic noise field and an anisotropic noise field originating at the surface. In this paper a numerical simulation method for the isotropic noise field and the anisotropic noise field is proposed. And operation steps and operational rules of the method are described in detail. By reasonable choosing the way noise sources distributed, and reasonable design of time-delay filter, the noise data received at any point in ocean can be generated by running the simulation method. The simulation results show that the spatial-correlation functions of isotropic noise and surface noise field simulated by the simulation method are consistent with the theoretical analysis. And it shows that the method proposed in this paper is valid and efficient.