Abstract:The paper proposes a novel approach that a new likelihood function is derived from observation data after filtered with eigenfilters, and hybrid gravitational search algorithm (H-GSA) optimization is collaboratively applied to maximum likelihood (ML) estimation of the direction of arrival (DOA) parameters of multiple signals impinging on a sensor array. This method prevents the ML estimation performances from deteriorating severely where the angular separation between signal sources is small and the SNR / samp… Show more
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