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Proceedings Paper

Direction Of Arrival Estimation In The Presence Of Noise With Unknown, Arbitrary Covariance Matrices
Author(s): J. P Reilly; K. M. Wong; P. M. Reilly
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Paper Abstract

A new method for estimating directions of arrival of plane waves onto arrays of sensors is proposed. The method is particularly well-suited to the case where the background noise field is non-isotropic, with arbitrary covariance matrix. The joint posterior probability density function of the signal parameters and the noise covariance matrix Σ is formed after a suitable non-informative prior p(Σ) is defined, and then the dependence on Σ is integrated out. The resulting estimator structure is then modified to substantially reduce the computational requirements. A geometric interpretation of the final objective function is given. Significantly improved performance over the MUSIC algorithm, particularly with regard to threshold, is observed.

Paper Details

Date Published: 14 November 1989
PDF: 13 pages
Proc. SPIE 1152, Advanced Algorithms and Architectures for Signal Processing IV, (14 November 1989); doi: 10.1117/12.962288
Show Author Affiliations
J. P Reilly, McMaster University (Canada)
K. M. Wong, McMaster University (Canada)
P. M. Reilly, University of Waterloo (Canada)

Published in SPIE Proceedings Vol. 1152:
Advanced Algorithms and Architectures for Signal Processing IV
Franklin T. Luk, Editor(s)

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