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

Author

Shi, Jie

Author_Institution

Coll. of Marine, Northwestern Polytech. Univ., Xi´´an, China

fYear

2011

fDate

14-16 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

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.

Keywords

correlation methods; delays; filtering theory; noise; Cron model; Sherman model; anisotropic noise field; ocean ambient noise field; spatial correlation functions; surface noise field; time delay filter; Arrays; Delay effects; Finite impulse response filter; Noise; Oceans; Receivers; Sensors; Cron and Sherman model; isotropic noise field; numerical simulation; surface noise field;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4577-0893-0

Type

conf

DOI

10.1109/ICSPCC.2011.6061693

Filename

6061693