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14 November 1989 Direction Finding In The Presence Of Colored Noise
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Abstract
A procedure for estimating of the number and direction of arrival of uncorrelated plane waves in the presence of an unknown colored background noise using a uniform linear array is developed under the assumption that the response of the array to the noise has a rational power spectrum. The number and direction of arrival of the plane waves are estimated by rooting a polynomial which is formed from elements of the vectors spanning the null-space of a Hankel matrix whose entries are the spatial correlation sequence of the sensor outputs. A method for separating the roots of the polynomial that are due to the plane waves from those that are due to the noise is presented.
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A. H. Tewfik "Direction Finding In The Presence Of Colored Noise", Proc. SPIE 1152, Advanced Algorithms and Architectures for Signal Processing IV, (14 November 1989); https://doi.org/10.1117/12.962292
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