密集虚假运动目标生成方法  

Dense false moving targets generation method

作　　者：纪朋徽 代大海[1] 邢世其[1] 冯德军[1] JI Penghui;DAI Dahai;XING Shiqi;FENG Dejun(College of Electronic Engineering, National University of Defense Technology, Changsha 410073, China)

机构地区：[1]国防科技大学电子科学学院,湖南长沙410073

出　　处：《系统工程与电子技术》2022年第5期1502-1511,共10页Systems Engineering and Electronics

基　　金：国家自然科学基金(61971429,61901499)资助课题。

摘　　要：传统的合成孔径雷达地面运动目标指示(synthetic aperture radar ground moving target indication,SAR-GMTI)欺骗干扰技术,使用两台协同干扰机,能够生成逼真的虚假运动目标,但当生成密集虚假运动目标时,干扰机所需计算量太大,无法满足电子战中实时生成干扰信号的要求。因此,本文提出了一种密集虚假运动目标快速生成算法。该算法通过对双干扰机生成的虚假静止目标干扰信号进行复系数调制以控制虚假目标相位,使其能够被双通道SAR-GMTI系统检测为运动目标;然后结合SAR大场景欺骗干扰生成技术来生成密集虚假运动目标以降低运算量,使其具备一定的工程可实现性。仿真实验验证了文中所提方法的有效性。The traditional synthetic aperture radar ground moving target indication(SAR-GMTI)deceptive jamming method based on dual synthetic jammers can generate very similar false moving targets.However,when the method is used to create a large number of false moving targets,the computational burden is very high,which does not meet the need for real-time jamming in electronic warfare.Therefore,we propose an algorithm for fast generation of dense false moving targets.This proposed method is based on the theory of dual jammers generating false stationary targets against dual-channel SAR-GMTI.By adding complex coefficient modulation to each jammer,the false targets can be detected as moving ones.In addition,by using an algorithm of SAR large scenes deception jamming,the computational burden is reduced when the jammer creates dense false moving targets which makes the proposed method applicable to engineering.Simulation experiments verify the effectiveness of the proposed method.

关 键 词：合成孔径雷达 地面动目标指示 虚假运动目标 双干扰机协同 欺骗干扰 

分 类 号：TN95[电子电信—信号与信息处理]