A Self-calibration algorithm for concentric-UCA in the presence of mutual coupling
A self-calibration algorithm for concentric uniform circular arrays (C-UCA) in the presence of mutual coupling is presented. The proposed algorithm can simultaneously estimate the directions of arrival (DOA) of signal sources and coupling coefficients of antenna array with a calibration source. It not only can calibrate the mutual coupling of the inner subarrays, but also can compensate for the mutual coupling between sub-arrays. Compared with conventional self-calibration algorithm based on iterative alternating minimization technique, the proposed algorithm transforms joint estimation about DOA and mutual coupling coefficients into cascaded estimation, which means that the parameters can be obtained by one dimensional spectrum peak search. The proposed self-calibration algorithm has high estimation precision and low computational burden. Simulation results show the effectiveness of the presented method.
Concentric UCA DOA estimation Mutual coupling Self-calibration
Chen Hui Wu Yao Zhao Man
Key Research Lab of Wuhan Radar Academy,Wuhan, 430019,The National the National Information Control Key Research Lab of Wuhan Radar Academy, Wuhan,430019,The National the National Information Control
国际会议
三亚
英文
30-33
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）