宽带波束形成结构及算法研究  

Research on structure and algorithm of wideband beam-forming

作　　者：赵拥军[1] 陈辉[1] 刘成城[1] 刘亚奇[1] 吴波 

机构地区：[1]解放军信息工程大学 [2]解放军93787部队

出　　处：《电子测量与仪器学报》2014年第7期687-694,共8页Journal of Electronic Measurement and Instrumentation

基　　金：国家高技术研究发展计划("863"计划)(2011AA7031015)资助项目

摘　　要：宽带波束形成技术广泛应用于国防建设和国民经济领域,是阵列信号处理的研究热点和难点。通过对当前研究成果的归纳和总结,综述了宽带波束形成器频域、时域和空域3种基本结构,并对比分析了其优缺点;针对时域和空域模型,分别介绍了定向宽带波束形成算法和自适应宽带波束形成算法。通过对目标函数的变换,给出了定向波束形成算法迭代优化、求逆以及特征值分解3种不同的求解方式;在自适应宽带波束形成算法中,给出了基于参考信号的自适应波束形成算法,线性约束最小方差算法,以及无约束的广义旁瓣对消器结构。最后,在宽带波束形成器结构,多径干扰抑制,盲波束形成等方面进行了展望。With the extensive application in the field of defense construction and national economy , wideband beam-forming has already become one of the central and difficult issues in array signal processing .Three wideband beam-forming structures including frequency domain, time domain and spatial domain are presented through the research of current achievement.Then, fixed wideband beam-forming and adaptive wideband beam-forming algo-rithms are introduced to time domain and spatial domain structure .By the transformation for objective function, iterative optimization approaches , inverse and eigenvalue decomposition methods are given to solve the fixed beam-forming problem.For adaptive beam-forming, the reference signal-based beam-former, linearly constrained minimum variance beam-former and generalized sidelobe canceller are elaborated .Finally, the future research direction such as the structure of wideband beam-former, the suppression of multipath interference and the problem of blind beam-forming are prospected .

关 键 词：阵列信号处理 宽带波束形成 FIR滤波器 凸优化 广义旁瓣对消器 

分 类 号：TN911.7[电子电信—通信与信息系统]