基于圆柱阵通信系统的广义旁瓣对消算法  

Research on generalized sidelobe cancellation algorithm based on cylindrical array communication system

作　　者：窦茂森[1] 李同庆 潘少飞 DOU Mao-sen;LI Tong-qing;PAN Shao-fei(No 91404 Unit of PLA,Qinhuangdao 060000,China;The 54 Research Institute of CETGC,Shijiazhuang 050000,China;University of Computer Science and Technology,Xian 710000,China)

机构地区：[1]中国人民解放军91404部队,河北秦皇岛066000 [2]中国电子科技集团公司第五十四研究所,河北石家庄050000 [3]西安电子科技大学,陕西西安710000

出　　处：《舰船科学技术》2022年第11期151-155,共5页Ship Science and Technology

摘　　要：针对传统阵列天线应用场景的不足以及复杂电磁环境下干扰对通信性能的巨大影响,基于柱面共形阵列天线,本文提出一种广义旁瓣对消算法进行自适应数字波束形成。所提出算法使用多个阵元构造辅助通道,在不造成信噪比损失的情况下通过阻塞矩阵、静态权矢量和动态权矢量对干扰进行对消。所采用的广义旁瓣对消算法相对于自适应旁瓣对消算法信干噪比更高,且波束旁瓣电平在-10dB以下。实验结果表明,基于柱面阵的广义旁瓣对消算法可在保留通信信号的同时,自适应在干扰方向形成凹口,解决因存在期望通信信号而造成的干扰抑制性能下降问题。Aiming at the shortcomings of traditional array antenna application scenarios and the great impact of interference on communication performance in complex electromagnetic environment,based on cylindrical conformal array antenna,a generalized sidelobe canceller algorithm is proposed for adaptive digital beam forming.The proposed algorithm uses multiple array elements to construct the auxiliary channel,and cancels the interference through blocking matrix,static weight vector and dynamic weight vector without causing the loss of signal-to-noise ratio.Compared with the adaptive side--lobe cancellation algorithm,the generalized sidelobe cancellation algorithm has higher signal-to-interference noise ratio,and the beam sidelobe level is below-10dB.The experimental results show that the generalized sidelobe cancellation algorithm based on cylindrical array can adaptively form a notch in the interference direction while retaining the communication signal,so as to solve the problem of interference suppression performance degradation caused by the existence of expected communication signal.

关 键 词：广义自适应旁瓣对消 圆柱阵 算法 信干噪比 

分 类 号：U665[交通运输工程—船舶及航道工程]