基于逆滤波处理的雷达干扰效果在线评估方法  

Online evaluation method of radar jamming effect based on inverse filtering processing

作　　者：李瑞 朱梦韬 李云杰[1] LI Rui;ZHU Mengtao;LI Yunjie(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《系统工程与电子技术》2023年第9期2706-2717,共12页Systems Engineering and Electronics

基　　金：国家自然科学基金面上项目(61976019)资助课题。

摘　　要：非合作的干扰效果在线评估是实现自适应干扰及认知电子对抗闭环的关键问题和难点问题。对此,提出一种基于逆滤波处理的雷达干扰效果在线评估方法,通过感知得到的雷达系统外部状态,利用逆滤波处理估计雷达系统内部跟踪误差,进而实现对应雷达干扰样式的干扰效果在线评估和干扰参数实时优化。首先对逆滤波处理实现雷达跟踪误差估计问题进行建模,然后针对杂波背景下的雷达滤波算法进行逆滤波处理推导。具体设计了针对拖引欺骗干扰的干扰效果在线评估和干扰参数优化方法,最后以对抗导引头雷达的距离门拖引干扰为例进行了数字仿真验证,实验结果验证了所提方法的可行性和有效性。Evaluation of the jamming effect under non-cooperative conditions is a key and difficult problem in realizing the closed loop of cognitive electronic countermeasures.Thus,a method that can estimate the internal tracking error of the radar system through inverse filtering processing of the external states of the radar system is proposed.This method can realize the online evaluation of the jamming effectiveness for the current jamming action and optimizes the corresponding jamming parameters.This paper firstly models the inverse filter processing problem to estimate the radar tracking error,and then derives the inverse filter processing algorithm for typical radar filter algorithms.Specifically,the method of online jamming effectiveness evaluation and jamming parameter optimization for range gate pull off(RGPO)jamming is designed.Simulation results with RGPO self-defense jammer against the seeker radar prove the feasibility and effectiveness of the proposed method.

关 键 词：雷达对抗 在线干扰效果评估 逆信号处理 逆概率数据关联滤波 距离门拖引干扰 

分 类 号：TN974[电子电信—信号与信息处理]