哈尔滨工程大学学报Issue(6)：741-746,6.DOI:10.3969/j.issn.1006-7043.201306015
迭代寻优的稳健波束形成
Robust adaptive beamforming based on iterative optimization
摘要
Abstract
The performance of common robust adaptive beamforming degrades with the increasing degree of the sig-nal steering vector error. To solve this problem, a robust adaptive beamforming algorithm was proposed on the basis of searching optimal signal steering vectors with an iterative strategy. The objective function that maximizes the beamformer output power was constructed by a corrected steering vector, while the constraint was deduced from both respects of interference suppression and noise suppression. The approach of structuring constraint by using a matrix filter was given and the rationality was explicated. Considering the difficulty in solving the optimization prob-lem, an iterative optimization method was proposed, and the method solved a second-order program problem at each iteration. The simulation results show that, compared with common methods, this proposed method achieves higher signal-to-interference-plus-noise ratios ( SINR) in the case of a steering vector mismatch. Moreover, the prior infor-mation of this proposed method is easier to extract.关键词
稳健自适应波束形成/矩阵滤波器/迭代优化/二阶锥规划/导向矢量Key words
robust adaptive beamforming/matrix filter/iterative optimization/second-order program/steering vec-tor分类
通用工业技术引用本文复制引用
王燕,吴文峰,范展,梁国龙..迭代寻优的稳健波束形成[J].哈尔滨工程大学学报,2014,(6):741-746,6.基金项目
国家自然科学基金资助项目（51279043，61201411，51209059）；黑龙江普通高等学校青年学术骨干支持计划（1253G019）；水声技术国家重点实验室基金资助项目（9140C200203110C2003）． （）
