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In this paper a novel approach is proposed for estimating the direction-of-departure (DOD) in a frequency-selective multipath channel, where both the transmitter (Tx) and receiver (Rx) employ an antenna array. In particular, the proposed approach exploits the cooperation between the Tx and Rx beamformers, such that the Tx beamformer rotates its mainlobe in a synchronized manner that is known to the...
A new algorithm, called generalized covariance differencing (GCD), is proposed for direction of arrival (DOA) estimation in the presence of coherent sources and unknown nonuniform noise. By using the difference between the forward-backward spatial smoothing matrix and its complex conjugation, the GCD method constructs a generalized covariance matrix, which can fully eliminate spatially nonuniform...
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