Passive azimuth estimation using directional sensors in a cluster

Author

Xiang Yuan, Y. ; Salt, J.E. ; Carter, G.Clifford

Author_Institution

Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada

fYear

1994

fDate

25-28 Sep 1994

Firstpage

425

Abstract

This paper investigates the feasibility of a novel receiver system that can be deployed with a single sonobuoy for estimating the azimuthal angle of an underwater acoustic source. The azimuth estimation is based on energy information in signals received at two directional sensors in the receiver in a direct and surface-reflected environment. Expressions for the bias and variance of the azimuth estimator are derived. The results of the study show that the bias of the energy-based azimuth estimator can be predicted and then can be removed, and that its variance error is quite small. The theoretical development is corroborated with Monte Carlo simulations

Keywords

acoustic receivers; acoustic signal processing; array signal processing; underwater sound; Monte Carlo simulations; bias; directional sensors; energy information; passive azimuth estimation; receiver system; sonobuoy; surface-reflected environment; underwater acoustic source; variance error; Acoustic signal processing; Array signal processing; Underwater acoustic propagation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1994. Conference Proceedings. 1994 Canadian Conference on

Conference_Location

Halifax, NS

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1994.405779

Filename

405779