14 November 1989 Direction Of Arrival Estimation In The Presence Of Noise With Unknown, Arbitrary Covariance Matrices
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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.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. P Reilly, J. P Reilly, K. M. Wong, K. M. Wong, P. M. Reilly, P. M. Reilly, } "Direction Of Arrival Estimation In The Presence Of Noise With Unknown, Arbitrary Covariance Matrices", Proc. SPIE 1152, Advanced Algorithms and Architectures for Signal Processing IV, (14 November 1989); doi: 10.1117/12.962288; https://doi.org/10.1117/12.962288
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