Direction-of-arrival estimation for noncircular signals

 This work is partially supported by National Natural Science Foundation of China (Grant #61072098 and #61072099). Abstract Direction-of-arrival (DOA) estimation for nearcompletely noncircular signals is considered in this paper, and two DOA estimators based on Widely Linear Minimum Variance Distortionless Response (WL-MVDR) beamforming are proposed, called the spatial conjugate power spectrum (SCPS) method and subspace matching (MBNB) method, respectively. The performance of the proposed DOA estimators is illustrated via numerical examples and compared with other estimators. Index Terms array signal processing; direction-of-arrival estimation; noncircular signal

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