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Open Access Research Article

Improvement on EVESPA for Beamforming and Direction of Arrival Estimation

Emmanuel Racine* and Dominic Grenier

Author Affiliations

Department of Electrical and Computer Engineering, Laval University 1065, Avenue de la Médecine, Québec (QC), Canada, G1V 0A6

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EURASIP Journal on Advances in Signal Processing 2011, 2011:283020  doi:10.1155/2011/283020

Published: 13 March 2011

Abstract

This paper presents an alternative estimation procedure of the generalized steering matrix of the sources in EVESPA, suitable for both beamforming and direction of arrival estimation. It is shown how the estimation of such a matrix can be restricted to that of its corresponding coefficient matrix in the signal subspace, providing both performance enhancement and computational complexity reduction. Performance comparison through numerical simulations is presented to confirm the effectiveness of the proposed procedure.