基于导向矢量扩维的稳健波束形成方法  

Robust beamforming based on steering vector extension

作　　者：方玉河 李哲[1,2,3] 曹永兴 朱军[4] 王南[5] 苏良智[6] Fang Yuhe;Li Zhe;Cao Yongxing;Zhu Jun;Wang Nan;Su Liangzhi(NARI Group Corporation,Nanjing 211106,China;Wuhan NARI Limited Liability Companyof State Grid Electric Power Research Institute,Wuhan 430074,China;Hubei Key Laboratory of Power Grid Lightning Risk Prevention,Wuhan 430074,China;State Grid Sichuan Electric Power Company,Chengdu 610041,China;State Grid Shanxi Electric Power Company,Xi’an 710048,China;State Grid Zhejiang Electric Power Company,Hangzhou 310048,China)

机构地区：[1]南瑞集团有限公司,江苏南京211106 [2]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074 [3]电网雷击风险预防湖北省重点实验室,湖北武汉430074 [4]国网四川省电力公司,四川成都610041 [5]国网陕西省电力公司,陕西西安710048 [6]国网浙江省电力公司,浙江杭州310048

出　　处：《南京理工大学学报》2018年第6期722-726,共5页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(61501505)

摘　　要：针对阵列信号导向矢量失配下的稳健波束形成问题,该文提出了1种新的方法。引入角度稳健因子,从而构造扩展目标导向矩阵,以替代目标视在导向矢量。仿真结果表明,该文方法比传统最小方差无偏响应(MVDR)方法具有更稳健的波束形成效果和更低的副瓣电平。A new method is proposed for robust beamforming with steering vector mismatch of array signals.Introducing a concept of angle robust factor,a nominal signal steering vector is extended to form a steering matrix.Simulation results show that the proposed method can significantly outperform the traditional minimum variance distortionless response(MVDR)in terms of robustness and low sidelobe.

关 键 词：阵列信号处理 波束形成 导向矢量失配 最小方差无偏响应 

分 类 号：TN958[电子电信—信号与信息处理]