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A virtual multi-element uniform linear array is constructed through fractional lower order covariance matrix of the minimum redundant array in the presence of impulsive noise. Based on virtual multi-element uniform linear array and reconstructed fractional lower order covariance matrix, a novel maximum likelihood (ML) algorithm is proposed. The proposed algorithm utilized few virtual elements and...
In order to obtain a reliable performance using the direction of arrival (DOA) techniques, a good estimation of the covariance matrix is required which is not possible in the presence of impulsive noise. An efficient nonlinear DOA estimation method based on robust statistics is developed for a CDMA receiver to mitigate impulsive noise effects in multipath environments. The proposed scheme is derived...
This paper proposes a new recursive variable loading minimum variance distortionless response (RVL-MVDR) algorithm for robust beamforming in impulsive noise environment. It employs a new method for robust estimation of the sample covariance matrix under impulsive noise and a new method for computing the data-dependent loading level using robust statistics. Computer simulations suggest that the proposed...
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