基于干涉相位的虚假目标鉴别算法  

Discrimination algorithm of false target jamming based on interferometry phase

作　　者：刘业民[1] 邢世其[1] 庞礴[1] 张静克[1] 王雪松[1,2] 

机构地区：[1]国防科学技术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]国防科学技术大学理学院,湖南长沙410073

出　　处：《系统工程与电子技术》2017年第2期282-290,共9页Systems Engineering and Electronics

基　　金：国家自然科学基金(61302143;61490692;61501473)资助课题

摘　　要：以具有地面动目标指示(ground moving target indication,GMTI)能力的三天线合成孔径雷达(synthetic aperture radar,SAR)系统为对象,研究了虚假目标的鉴别问题。在虚假目标干扰原理和动目标检测技术的基础上,分析了目标信号和干扰信号的干涉相位特征;利用真假目标的干涉相位特征差异,提取了两种稳健的鉴别特征量,提出了一种基于干涉相位的虚假目标鉴别算法,给出了鉴别处理流程、算法的应用条件及计算量和复杂度;最后进行了仿真实验验证。理论分析和仿真实验均表明该鉴别算法的可行性和有效性。The problem of false target discrimination is studied based on synthetic aperture radar （SAR） with ground moving target indication （GMTI） capability. The interferometry phase characteristics of target signals and jamming signals are analyzed based on the principle of false target jamming and moving target detection techniques. Two kinds of robust indentation are extracted according to characteristics difference of the real and false target. A discrimination algorithm of deception jamming based on the interferometry phase is proposed in the paper, the process flow of the discrimination algorithm is given, and the application conditions and the com- putation complexity are also presented. Finally, the simulation experiment is carried out. Theoretical analysis and simulation results verify feasibility and effectiveness of the proposed discrimination algorithm.

关 键 词：合成孔径雷达 地面动目标指示 虚假目标 干涉相位 鉴别 

分 类 号：TN95[电子电信—信号与信息处理]