一种多干扰机幅-频协同调制的SAR-GMTI欺骗干扰方法  

A Deception Jamming Method Against SAR-GMTI Based on AmplitudeFrequency Cooperative Modulation of Multiple Jammers

作　　者：黄大通 邢世其[1] 徐伟[1,2] 刘业民[3] 李永祯 肖顺平[1] HUANG Datong;XING Shiqi;XU Wei;LIU Yemin;LI Yongzhen;XIAO Shunping(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,National University of Defense Technology,Changsha,Hunan 410073,China;Xi'an Electronic Engineering Research Institute,Xi'an,Shaanxi 710100,China;Unit 32579 of the PLA,Guilin,Guangxi 541001,China)

机构地区：[1]国防科技大学电子信息系统复杂电磁环境效应国家重点实验室,湖南长沙410073 [2]西安电子工程研究所,陕西西安710100 [3]中国人民解放军第32579部队,广西桂林541001

出　　处：《信号处理》2022年第3期445-456,共12页Journal of Signal Processing

基　　金：国家自然科学基金(61971429)资助课题。

摘　　要：针对单干扰机生成的虚假目标经三天线合成孔径雷达-地面动目标显示(Synthetic Aperture Radar-Ground Moving Target Indication,SAR-GMTI)处理后,其重定位结果不可控,始终回归于干扰机处的问题,本文提出了一种多干扰机幅-频协同调制的欺骗干扰方法。文中首先建立了以噪声乘积为基础的多干扰机协同干扰模型;接着,根据推导出的SAR-GMTI输出解析式,从理论上分析了协同欺骗原理,继而得到了多干扰机的幅-频协同条件;之后,文中详细分析了所提算法的性能情况。仿真结果表明,本文所提的多干扰机协同对抗方法可有效实现对虚假目标重定位位置的灵活控制,相比卷积调制方式,能极大降低干扰的调制时间,对工程实践具备一定的参考价值。Considering the problem that the relocation of false targets under single jammer is uncontrollable after three antennas SAR-GMTI processing,which makes them always return to the jammer’s position,a deception jamming method is proposed in this paper,which is based on amplitude-frequency cooperative modulation of multiple jammers. First,the cooperative jamming model of multiple jammers is established,which is based on noise multiplication. Then,according to the analytical expression of SAR-GMTI output,the principle of cooperative deception is analyzed theoretically and the amplitude-frequency cooperation condition of multiple jammers is deduced. Afterwards,the performance of the proposed jamming method is analyzed in detail. Simulation results demonstrate that the proposed cooperative jamming method of multiple jammers can effectively control the relocation of false targets. Compared with convolution modulation,the proposed method can greatly reduce jamming modulation time,which provides some reference values for engineering applications.

关 键 词：合成孔径雷达 地面动目标显示 欺骗干扰 多干扰机 幅-频协同调制 

分 类 号：TN95[电子电信—信号与信息处理]