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In this paper, a novel DOA matrix method based on first order statistics is proposed, which can estimate two-dimensional (2-D) direction of arrival (DOA) for coherent signals at the cost of less computational complexity. Firstly, the pseudo autocovariance matrix and pseudo cross covariance matrix are constructed by the first order statistics of array received data, and the rank of the matrix is proved...
This paper proposes a novel method to resolve carrier phase estimation ambiguities based on modulation symbols. The differential time delay between received channels is estimated and then ambiguous number is obtained. Any interelement spacing can be larger than half-wavelength and no redundant antennas are required in this method. Multi-phase shifting keying (MPSK) signal is detailedly analyzed as...
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