A method of range and DOA estimation of near field sources without pairing parameters

Authors:
Liguo Wang;Ke Wang
Affiliations:
School of Communication Engineering, Jilin University, Changchun, China and Center of Educational Technology, Beihua University, Jilin, China;School of Communication Engineering, Jilin University, Changchun, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Abstract

A new method based on fourth-order cumulant for the joint estimation of the range and DOA of spatial near-field sources is presented. The proposed method adopts the noncentro-symmetric array, and constructs three cumulant matrixes using received array data; the aperture loss is effectively avoided. The method estimates the DOA and range parameters by the tripartite relationships among subspace matrixes, eigenvalue of the matrix and the eigenvector of corresponding eigenvalue, the parameters can be paired automatically. The performance of the proposed method is verified by computer simulations.