面向自适应调零GPS的多站干扰部署策略研究  

Research on multi-station jamming deployment strategy for adaptive nulling GPS

作　　者：赖晓睿 翁呈祥[1] 毕钰 梅豪 范亚 LAI Xiaorui;WENG Chengxiang;BI Yu;MEI Hao;FAN Ya(Air Force Early Warning Academy,Wuhan 430019,China)

机构地区：[1]空军预警学院,武汉430019

出　　处：《空天预警研究学报》2023年第6期415-421,共7页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

摘　　要：针对多个干扰源对抗GPS天线自适应调零的部署运用问题,分析了基于最小均方误差LMS的功率倒置算法实现自适应调零的基本原理和抗干扰特性;针对自相关矩阵特征值分散时收敛性差和抗干扰源数量有限的特点,提出了双站强弱协同和多站联合压制的干扰方法.仿真结果表明,双站强弱协同干扰方法在双站基线附近区域具有较好的干扰效能,部署运用时应尽可能提高强弱干扰源功率差异和弱干扰源功率;多站联合压制干扰方法可以有效增大干扰有效区面积但具有明显的离散性,部署运用时应尽可能增加干扰源数量和提升干扰功率.In order to address the deployment and application of multiple jamming sources against adaptive nulling GPS antenna,this paper analyzes the basic principle and anti-jamming characteristics of power inversion algorithm based on the least mean square(LMS)to realize adaptive nulling.And then,aiming at the characteristics of poor convergence and limited number of anti-jamming sources when the eigenvalues of the autocorrelation matrix are dispersed,the paper proposes a jamming method of two-station strong and weak coordinative and multi-station joint suppression.The simulation results are shown as follows:The two-station strong and weak synergistic jamming method has better jamming efficiency in the area near the two-station baseline,and in time of deployment and application,the power difference between strong and weak jamming sources and the power of weak jamming sources should be increased as much as possible.The multi-station joint jamming suppression method can effectively increase the effective area of jamming but has obvious discreteness,and in time of deployment and application,the number of the jamming sources and jamming power should be increased as much as possible.

关 键 词：多站GPS干扰 功率倒置 自适应调零 效能评估 部署方法 

分 类 号：TN973[电子电信—信号与信息处理]