Numerical method for simulating ocean ambient noise field

A numerical method for simulating ocean ambient noise field is proposed here. Cron and Sherman (1962) 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 study, by reasonable choosing the way noise sources distributed and reasonable design of time-delay filter, the broadband time series of noise data received at any point in ocean can be generated by running the numerical simulating method. The operation steps of the method are described in detail. The simulation results show that the spatial-correlation functions of isotropic noise field and surface noise field simulated by the simulation method are consistent with the theoretical analysis. © 2013 Asian Network for Scientific Information.