中段弹道目标分离过程动态散射特性分析  

Dynamic Scattering Analysis of Midcourse Ballistic Targets with Separation Movements

作　　者：赵锋[1] 徐志明 吴其华[1] 艾小锋[1] ZHAO Feng;XU Zhiming;WU Qihua;AI Xiaofeng(The State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,College of Electronic Science,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电子信息系统复杂电磁环境效应国家重点实验室,长沙410073

出　　处：《雷达学报（中英文）》2021年第3期360-369,共10页Journal of Radars

基　　金：国家自然科学基金(62071475,61890541,61890542,62001481)。

摘　　要：中段弹道目标会发生释放弹头、抛洒诱饵等多种形式的目标分离事件。在目标分离的前期,多目标之间距离较近,存在电磁耦合现象,诱发目标雷达散射截面积、极化等维度的电磁特征变化。准确地捕获这些变化就能辅助雷达进行资源调度,提高预警雷达对弹道目标的跟踪和识别能力。该文对中段弹道目标3种分离方式的动态散射特性进行了深入分析,在此基础上提出了可以判断目标分离事件发生的特征量,促进弹道目标行为辨识的发展。In the midcourse trajectory of ballistic targets,warhead releasing and decoy throwing are two of the several types of target separation events.In the early stages,multiple targets are close to each other,and coupling scattering usually leads to variations in the radar cross section and polarization.If these variation features are investigated clearly,the tracking and recognition ability of an early warning radar will improve for ballistic targets.In this study,dynamic scattering of ballistic targets with three types of separation movements is analyzed;and several separation features that promote the action recognition development of midcourse ballistic targets are proposed.

关 键 词：弹道目标 目标分离 多目标 特征提取 

分 类 号：TN955[电子电信—信号与信息处理]