电子学报2012，Vol.40Issue(7)：1351-1357,7.DOI:10.3969/j.issn.0372-2112.2012.07.011
矢量最优化稳健波束形成性能分析
Performance Analysis of Robust Adaptive Beamforming Based on Vector Optimization
摘要
Abstract
When there exists the array steering vector error, the performance of standard Capon beamforming will be severely degraded.In this paper,in the view of the constraints on the weight vector and the uncertainty sets, we propose a new approach, which is called Vector Optimization Robust Beamforming. It is shown that the proposed algorithm can be reformulated in a convex form as the so-called Second-Order Cone (SOC) program and solved efficiently using the well-established optimization tool,sedu-mi.Furthermore,this paper gives the approximate analytical expression for the adaptive weight vector,and reveals the main factors influencing the weight vector. Through the theory analysis and computer simulations, the influences of the constraint parameters, Signal Noise Ratio, snapshots, and bearing estimation errors on the output Signal Interference Noise Ratio and the spatial spectrum estimation are discussed in detail.Finally,the experimental results show that the robust high-resolution bearing estimation results can be obtained by our proposed method in practice.关键词
信息处理技术/稳健自适应波束形成/矢量最优化/正则化/二阶锥规划Key words
Underwater Acoustic Engineering Department, Harbin Engineering University, Harbin, Heilongjiang 150001, Chinainformation processing technology/robust adaptive beamforming/ vector optimization/regularization/ second-order cone program分类
信息技术与安全科学引用本文复制引用
宋海岩,朴胜春,秦进平..矢量最优化稳健波束形成性能分析[J].电子学报,2012,40(7):1351-1357,7.基金项目
中央高校基础科研业务费专项基金(No.HEUCFR1119) （No.HEUCFR1119）
