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All beamspace DOA (direction of arrival) estimation algorithms are based on the beam outputs and the beamformers play an important role in providing high quality beam output data for further processing. In this paper, robust Capon beamformer (RCB) combined with null-broadening technique is applied to the element outputs. It can effectively suppress the fast-moving strong interferers outside the beam...
A new method is proposed to detect the number of signals and estimate their directions-of-arrival (DOAs) in the multipath channels. Based on the coherency among signals, multiple independent sources resulted from multipaths are automatically divided into several independent groups from the multistage constant modulus array with power signal detector, and the spatial signature corresponding to each...
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