Bearing Estimation Of A Sound Source In A Shallow Water Channel

Chouhan, Harish M and Anand, GV (1989) Bearing Estimation Of A Sound Source In A Shallow Water Channel. In: Fourth IEEE Region 10 International Conference TENCON '89, 22-24 November, Bombay,India, pp. 259-262.

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Abstract

A solution to the problem of bearing estimation of multiple sound sources in a shallow ocean waveguide is developed. A planar array of N vertical columns of Q hydrophones each is used. Each vertical column is used as a mode-filter to extract the same normal mode from among the many propagating in the waveguide. It is shown that a two-column planar array used in conjunction with a delay-and-sum array processor would suffice to estimate the source bearing. When multiple sources are present, the use of a high resolution spectral estimation technique in place of the simple delay-and-sum array processor provides unbiased estimates. Computer simulation results using the MUSIC method with a planar array in a waveguide with a rigid bottom are presented.

Item Type:	Conference Paper
Additional Information:	Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	29 May 2006
Last Modified:	01 Mar 2019 09:42
URI:	http://eprints.iisc.ac.in/id/eprint/7007

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