电子学报2017，Vol.45Issue(12)：2842-2847,6.DOI:10.3969/j.issn.0372-2112.2017.12.003
一种改进的迭代型鲁棒波束形成算法
Modified Iterative Robust Beamforming Algorithm
摘要
Abstract
To effectively overcome the influence of model mismatch on the performance of adaptive beamformer,a modified iterative robust adaptive beamformer is proposed.Based on the integration of steering vector within or without the angular sector of desired signal's direction of arrival (DOA),a new stopping criterion is constructed in the proposed algorithm.Using the new stopping criterion,the weak robustness against stopping criterion parameter in iterative diagonally loaded sample matrix inverse (ILSMI) robust adaptive beamformer is strengthened,and the output signal-to-interference-and-noise ratio (SINR) is improved obviously.Simulation results show that the proposed algorithm can effectively improve the robustness of beamformer against different types of model mismatch.Moreover,the proposed algorithm can deal with DOA mismatch in large region,and the robustness against the angular sector of DOA is quite strong.关键词
波束形成/鲁棒/对角加载/迭代Key words
beamforming/robust/diagonal loading/iterative分类
信息技术与安全科学引用本文复制引用
金伟,赵建勋,张峰干,贾维敏,姚敏立..一种改进的迭代型鲁棒波束形成算法[J].电子学报,2017,45(12):2842-2847,6.基金项目
国家自然科学基金(No.61179004) （No.61179004）
