无源雷达成像的平动补偿  

Motion Compensation for Passive Radar Imaging

作　　者：夏孟[1] 王俊[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《电子科技》2006年第12期1-4,共4页Electronic Science and Technology

基　　金：国家自然科学基金(60472087);国防预研基金(51407010204DZ0125)资助项目

摘　　要：基于外辐射源的运动目标探测、定位与成像技术是目前新体制雷达研究的重点。讨论了无源雷达成像的平动补偿,建立目标回波模型,利用相邻回波包络的相关性进行运动补偿。将来自不同视线角的多个电视台的反射信号形成的子孔径综合为等效的大孔径的方法来对目标进行成像,并进行了仿真试验。The technique for detecting, locating and imaging moving targets based on external illuminators is a very important research field in the new style radar system. Motion compensation for passive radar imaging is discussed in the paper and echo-signal models for target are given, On the basis of this, the relativity of contiguous echo-signal envelope is used for motion compensation. Object imaging is achieved by synthesizing into a wide-angle equivalent aperture the sub-apertures which are formed by the echo-signal coming from multiple television stations located at various aspect angles. Finally, the simulation results are presented.

关 键 词：双(多)基地雷达 ISAR成像 平动补偿 包络对齐 

分 类 号：TN958.97[电子电信—信号与信息处理]