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Abstract
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The coherentl1-singular value decomposition (l1-SVD) uses a non-unitary coherent strategy for transferring different frequency
bin data to a reference bin, which decreases the signal-to-error ratio (SER) in transferring, thereby leading to a decrease in accuracy
in the direction of arrival (DOA) estimation. To cope with this problem, in this paper we propose a unitary coherent strategy that
uses unitary focusing matrices for transferring data. Simulation results show that the proposed method outperforms the coherent
l1-SVD method in accurate DOA estimation
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