Eigenspace-based source number estimation for direction-of-arrival estimation |
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| Authors: | ZHU Weiqing HU Juan LIU Xiaodong LIU Zhiyu PAN Feng |
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| Affiliation: | ZHU Weiqing~1 HU Juan~(1,2) LIU Xiaodong~1 LIU Zhiyu~1 PAN Feng~1 (1 Ocean Acoustic Technique Lab.,Institute of Acoustic,Chinese Academy of Sciences Beijing 100190) (2 Graduate School of Chinese Academy of Sciences Beijing 100029) |
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| Abstract: | A eigenspace-based source number estimation was presented.It projects the estimated covariance matrix of array signal into signal eigen-subspace and noise eigen-subspace, respectively.Using the orthogonality between signal eigen-subspace and noise eigen-subspace, it is easy to differentiate the contribution of signal and noise by using the criterion value,or the magnitude of projection.Like the Direction-of-Arrival(DOA) estimation algorithm,the estimator uses the eigenvalue decomposition of covariance matri... |
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