ROBUST ADAPTIVE BEAMFORMING ALGORITHM UNDER DIRECTIONAL UNCERTAINTY

摘要：

When applying adaptive arrays to actualities, the performance of existing adaptive array algorithms is known to degrade substantially because of the slight mismatch between actual and presumed array responses to the desired signal. In this paper, a novel robust adaptive beamforming algorithm under directional uncertainty is therefore proposed using a Bayesian approach to respond to the current environment by learning or estimating the direction of arrival (DOA) of the actual signal from observations. The proposed algorithm can provide excellent robustness to the uncertainty of DOA of actual signal and make the mean output array SINR consistently close to the optimal one. Simulation results reveal that the proposed algorithm is superior in performance to conventional adaptive beamforming algorithms.

关键词： Adaptive Beamforming Directional Uncertainty Signal Steering Vector Mismatches

作者: Xin Song Jinkuan Wang Bin Wang

作者单位: Engineering Optimization & Smart Antenna Institute Northeastern University, Qinhuangdao, 066004

会议类型: 国际会议

会议名称: 2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)

会议地点: 广西桂林

会议语种:英文

页码: 2842-2845

在线出版日期: 2009-06-17（万方平台首次上网日期，不代表论文的发表时间）