全极化雷达抗间歇采样转发式干扰的非匹配滤波方法  

Mismatched Filtering Method of Polarimetric Radar Against Interrupted Sampling Repeater Jamming

作　　者：王栗沅 何华锋 韩晓斐 何耀民 李震 WANG Liyuan;HE Huafeng;HAN Xiaofei;HE Yaomin;LI Zhen(School of Missile Engineering,Rocket Force University of Engineering,Xi’an 710025,China)

机构地区：[1]火箭军工程大学导弹工程学院,陕西西安710025

出　　处：《雷达科学与技术》2023年第6期661-669,共9页Radar Science and Technology

摘　　要：间歇采样转发式干扰(ISRJ)能够在雷达接收机形成多个逼真的假目标,兼具压制和欺骗的干扰效果。为提升雷达在此干扰场景下的目标检测能力,提出了一种全极化雷达体制下的抗ISRJ非匹配滤波方法。文中以脉冲压缩后信号最小旁瓣能量输出和干扰最小积分能量输出为出发点,基于罚函数的思想建立多目标优化模型;通过帕累托参数的组合加权,将模型转化为多线性约束下最小输出积分能量的目标函数,以此设计非匹配滤波器。仿真实验表明,本文方法能够有效抑制不同样式的间歇采样转发式干扰。Interrupted sampling repeater jamming(ISRJ)can form multiple realistic false targets in radar receiv⁃ers,which has the jamming effects of suppression and deception.In order to improve the target detection ability of radar in this jamming scene,an anti⁃ISRJ mismatched filtering method under the polarimetric radar system is proposed.In this paper,a multi⁃objective optimization model is established based on the idea of penalty function,starting from the minimum sidelobe energy output of signal and the minimum integrated energy output of interference after pulse compres⁃sion.Through the combination weighting of Pareto parameters,the model is transformed into the objective function of minimum output integrated energy under multi⁃linear constraints,and the mismatched filter is designed.Simulation re⁃sults show that this method can effectively suppress different types of interrupted sampling repeater jamming.

关 键 词：全极化雷达 间歇采样转发式干扰 抗干扰 非匹配滤波 

分 类 号：TN972[电子电信—信号与信息处理]