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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


The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2011/1/283020


Received:9 September 2010
Revisions received:18 January 2011
Accepted:22 February 2011
Published:13 March 2011

© 2011 Emmanuel Racine and Dominic Grenier.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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.

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