一种多波束阵列重构导航抗干扰算法  

A Multi-beam Array Reconstruction Navigation Anti-jamming Algorithm

作　　者：王召 郭天泽 万春阳 WANG Zhao;GUO Tianze;WAN Chunyang(The 54th Research Institute of CETC,Shijiazhuang 050081,China;Hebei Brench,China Communications System Co.,Ltd.,Shijiazhuang 050081,China;Unit 69225,PLA,Bayingol Mongolian Autonomous Prefecture 841300,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]中华通信系统有限责任公司河北分公司,河北石家庄050081 [3]中国人民解放军69225部队,新疆巴音郭楞蒙古自治州841300

出　　处：《无线电通信技术》2023年第3期577-582,共6页Radio Communications Technology

基　　金：国家部委基金资助项目。

摘　　要：多波束抗干扰技术根据期望信号与干扰信号来向自适应形成主瓣和零陷,从而达到抑制导航干扰并增强期望信号的目的。多波束抗干扰技术的性能与阵列规模有着直接关系,更大规模阵列的抗干扰性能更好,但在工程应用中会受到算法收敛速度、硬件资源消耗与抗干扰处理实时性等方面限制,而小尺寸阵列抗干扰性能明显降低。针对这一问题,提出了一种多波束阵列重构导航抗干扰方法,针对不同期望信号与干扰信号来向分别进行优化,通过在全阵列中优化选取部分阵元组成最优子阵列,使用不同子阵列结构对不同来向期望信号进行波束形成。Multi-beam anti-jamming technique adaptively forms the main lobe and zero trap according to desired signals and interference signals,which can suppress navigation interference and enhance the desired signal.The performance of multi-beam anti-jamming technology is directly related to the size of array.The anti-jamming performance of a larger array is better.But in engineering applications,it will be limited by algorithm convergence speed,hardware resource consumption and real-time anti-jamming processing.And the anti-jamming performance of smaller array is significantly reduced.To solve this problem,a navigation anti-jamming method of multibeam array reconstruction is proposed in this paper.This method is optimized for different desired signals and interference signals respectively.By optimizing part of array elements in the whole array to form an optimal sub-array,different sub-array structures are used for beamforming corresponding to different desired signals.

关 键 词：卫星导航 多波束抗干扰 阵列重构 阵列信号处理 

分 类 号：TN967.1[电子电信—信号与信息处理]