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Open Access

Improvement on EVESPA for Beamforming and Direction of Arrival Estimation

EURASIP Journal on Advances in Signal Processing20112011:283020

Received: 9 September 2010

Accepted: 22 February 2011

Published: 13 March 2011


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.


Information TechnologyComputational ComplexityPerformance ComparisonQuantum InformationEstimation Procedure

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Authors’ Affiliations

Department of Electrical and Computer Engineering, Laval University 1065, Québec, Canada


© Emmanuel Racine and Dominic Grenier. 2011

This article is published under license to BioMed Central Ltd. 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.