Adaptive beamforming with joint robustness against mismatched signal steering vector and interference nonstationarity

被引：107
|
作者：
Vorobyov, SA [1 ]
Gershman, AB
Luo, ZQ
Ma, N
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4K1, Canada
[2] DSO Natl Labs, Singapore 118230, Singapore
来源：
IEEE SIGNAL PROCESSING LETTERS | 2004年 / 11卷 / 02期
关键词：
adaptive beamforming; interference nonstationarity; robustness; second-order cone programming; steering vector errors;
D O I：
10.1109/LSP.2003.819857
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Adaptive beamforming methods degrade in the presence of both signal steering vector errors and interference nonstationarity. We develop a new approach to adaptive beamforming that is jointly robust against these two phenomena. Our beamformer is based on the optimization of the worst case performance. A computationally efficient convex optimization-based algorithm is proposed to compute the beamformer weights. Computer simulations demonstrate that our beamformer has an improved robustness as compared to other popular robust beamforming algorithms.
引用
收藏
页码：108 / 111
页数：4
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