摘要
针对常规假目标干扰在对抗合成孔径雷达-地面动目标检测系统(SAR-GMTI)时失效的问题,提出一种运动调制假目标干扰方法。该方法在截获信号相位上进行运动调制,然后转发出去。其干扰原理是利用运动调制后信号的运动特性,使干扰信号经过SAR成像处理会产生展宽效应,且经SAR-GMTI系统通道对消后干扰无法被对消。用三通道DPCA技术分析了运动调制干扰对多通道GMTI的对抗性能。仿真实验证明了该干扰的有效性。
To solve the failure of the conventional false target jamming against synthetic aperture radar ground moving targets indication(SAR-GMTI),a novel method named motion modulation false target jamming is put forward.Motion modulation is performed on the phase of the intercepted signal and then the modulation signal is forwarded out.The principle of the jamming is to make use of the motion characteristics of the modulation signal.The jamming will be broadened after SAR imaging,and the jamming cannot be eliminated after the channel cancellation of SAR-GMTI processing.The resisting performance of motion modulation jamming against multi-channel GMTI is analyzed.Simulation results show the effectiveness of the jamming.
作者
解礼
XIE Li(National University of Defense Technology,College of Electronic Engineering,Anhui Hefei 230037,China)
出处
《现代防御技术》
2020年第4期86-92,109,共8页
Modern Defence Technology
关键词
合成孔径雷达-地面动目录检测系统
转发干扰
运动调制
通道对消
欺骗干扰
假目标
synthetic aperture radar ground moving targets indication(SAR-GMTI)
repeater jamming
motion modulation
channel cancelation
deception jamming
false target
