航天返回舱雷达探测技术研究  

Research progress on radar detection technology of reentry capsules

作　　者：刘伟[1,2,3] 郝艳军[1,2,3] 葛页 邱风 周伟奇[1,2,3] 刘志栋 许辉 夏凌昊 杨予昊[1,2,3] 饶江滨 汪润生[4] 张景东 LIU Wei;HAO Yanjun;GE Ye;QIU Feng;ZHOU Weiqi;LIU Zhidong;XU Hui;XIA Linghao;YANG Yuhao;RAO Jiangbin;WANG Runsheng;ZHANG Jingdong(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China;Key Laboratory of IntelliSense Technology,CETC,Nanjing 210039,China;Jiangsu Provincial Key Laboratory of Detection and Perception Technology,Nanjing 210039,China;The Unit 63610 of PLA,Korla 841000,China)

机构地区：[1]南京电子技术研究所,南京210039 [2]中国电子科技集团公司智能感知技术重点实验室,南京210039 [3]江苏省探测感知技术重点实验室,南京210039 [4]中国人民解放军63610部队,库尔勒841000

出　　处：《电波科学学报》2024年第1期3-11,共9页Chinese Journal of Radio Science

摘　　要：雷达在探测航天返回舱黑障区时,因受到等离子体鞘套干扰,长期存在跟踪不稳定甚至丢失等问题。本文从等离子体鞘套与电磁波相互作用机理出发,提出了航天返回舱黑障区电磁特性仿真方法和再入场景回波仿真方法;结合仿真与实测数据研究获取黑障区目标回波特征,提出了基于鞘套快时变特性的目标检测方法;设计了返回舱黑障区认知探测流程,将其应用于多频段雷达装备成功完成了多次返回舱探测任务,保障了黑障区稳定跟踪,基本解决了航天返回舱黑障区雷达探测问题。There has been existing problems like tracking instability or loss for radar tracking reentry capsules in blackout area caused by the plasma sheath.Through researching the interaction mechanism between plasma sheath and electromagnetic wave,we proposed a target electromagnetic characteristic simulation method of reentry capsules in blackout area and a radar echo simulation method of reentry scenes.Combining simulation and real data,we obtained target echo characteristics,proposed a target detection method based on the fast time-varying property of plasma sheath,and designed a cognitive detection flow of reentry capsules in blackout area.The flow was installed to radars of multiple frequency bands,and several detection missions of reentry capsules was successfully accomplished.The ability of stable tracking of reentry capsules in blackout area is obtained,basically solving the problem of detecting reentry capsules in blackout area.

关 键 词：航天返回舱 黑障区 雷达探测 电磁仿真 认知探测技术 

分 类 号：TN95[电子电信—信号与信息处理]