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- W2349693434 abstract "In this paper an improved spatial smoothing technique for direction-of-arrival estimation of coherent signals is proposed,which we call 搘eighted spatial smoothing (WSS)? Conventional spatial smoothing (SS) technique ignores the cross correlation information of subarray output with an inferior resolving ability for coherent signals . In order to decorrelating the coherent signals more completely, WSS technique takes full advantage of the auto-correlation and cross-correlation information of subarray output and makes a weighted sum of all sub-matrixes of array covariance matrix to form an equivalent subarray covariance matrix. The formula for the possible weight matrix is also derived based on the criterion that the smoothed sources covariance matrix is a diagonal matrix. Simulation results demonstrate that the WSS technique possesses a better revolving ability and a lower SNR threshold than conventional SS technique for DOA estimation of coherent signals,especially in the case that the size of subarray is small." @default.
- W2349693434 created "2016-06-24" @default.
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- W2349693434 date "2003-01-01" @default.
- W2349693434 modified "2023-09-28" @default.
- W2349693434 title "Weighted spatial smoothing algorithm for direction of arrival estimation of coherent sources" @default.
- W2349693434 hasPublicationYear "2003" @default.
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