分布式软目标雷达特性与感知技术述评  

Review of Radar Characteristics and Sensing Technologies of Distributed Soft Target

作　　者：李健兵 王雪松[1] LI Jianbing;WANG Xuesong(State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics&Information System,College of Electronic Science and Technology,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1期86-99,共14页Journal of Radars

基　　金：国家自然科学基金(61771479,61490649),湖南省杰出青年基金(2018JJ1030)。

摘　　要：分布式软目标是指分布范围较大、具有时变的空间分布或内部相对运动的非刚性目标或目标群,是当前雷达领域较为关注的一类目标,其特性与感知研究是一个多学科交叉的问题。为便于雷达科技工作者较好地理解相关技术,该文从正问题和逆问题两个角度,分连续型和离散型两种情况,对这类目标的运动、电磁散射/传输、雷达特征、探测与参数反演等技术的现状进行了梳理,并分析了发展趋势。以飞机尾流为例,对这类目标的雷达特性与感知技术进行了阐述,为相关雷达探测技术发展提供重要参考。Distributed soft target refers to nonrigid target or a target group with wide distribution range,timevarying spatial distribution,or internal relative motion.This type of target is currently attracting considerable interest in the radar field,and the research on its radar characteristics and sensing technology is a typical interdisciplinary problem.To help the radar technicians better understand the related technologies,this study introduces the dynamics,scattering/transmission,radar characteristics,detection,and parameter retrieval of this type of target in continuous and discrete forms,as regards the positive and inverse problems.Considering the aircraft wake vortex as an example,the radar characteristics and sensing technology of this type of target are illustrated,which can serve as a good reference for the development of related radar detection technologies.

关 键 词：分布式软目标 激光雷达 微波雷达 雷达特性 参数反演 飞机尾流 

分 类 号：TN951[电子电信—信号与信息处理]