Subspace-based method for joint range and DOA estimation of multiple near-field sources

Authors:
Yuntao Wu;Lin Ma;Chaohuan Hou;Guangbin Zhang;Jun Li
Affiliations:
Integrated Digital System Laboratory, Institute of Acoustics, Chinese Academy of Sciences, Beijing, China;School of Technical Physics, Xidian University, Xi'an, China;Integrated Digital System Laboratory, Institute of Acoustics, Chinese Academy of Sciences, Beijing, China;National Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, China;National Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, China
Venue:
Signal Processing - Special section: Advances in signal processing-assisted cross-layer designs
Year:
2006

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Abstract

A subspace-based method for joint range and DOA (direction-of-arrival) estimation of multiple near-field sources is presented. The proposed method uses fourth-order cumulants, and the range and DOA parameters are directly given by the eigenvectors and eigenvalues of a constructed matrix. Compared with some available methods, the 2D parameters are automatically paired and the loss of array aperture is also reduced. Performance evaluation via computer simulations is included to demonstrate the effectiveness of the proposed algorithm.