Performance Analysis of Robust Capon Beamforming Based on Uncertainty Set
Dai Ling-yan①②; Wang Yong-liang③; Li Rong-feng②; Bao Zheng②
①School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China; ②Key Research Lab, Air Force Radar Academy, Wuhan 430019, China; ③Department of Scientific Research, Air Force Radar Academy, Wuhan 430019, China
Abstract：Since standard Capon beamformer is susceptible to the steering vector mismatches of the Signal Of Interest(SOI), robust Capon beamforming based on steering vector error uncertainty set is investigated. In the cases that the practical steering vector belongs to a spherical uncertainty set, an approximate closed-form solution to the weight vector is derived with a series of approximate deductions. With the solution, the approximate expressions of the target’s power estimation and the output signal-to-interference-plus-noise ratio are presented for analysis evaluation, which provides insights into the influence factors on performace. The simulation results demonstrate the reasonability of the analysis in this paper.
戴凌燕; 王永良; 李荣锋; 鲍拯. 基于不确定集的稳健Capon波束形成算法性能分析[J]. 电子与信息学报, 2009, 31(12): 2931-2936 .
Dai Ling-yan①②; Wang Yong-liang③; Li Rong-feng②; Bao Zheng②. Performance Analysis of Robust Capon Beamforming Based on Uncertainty Set. , 2009, 31(12): 2931-2936 .
2009, Vol. 31 
