系绳式卫星InSAR系统概念设计和仿真  

Concept Design and Simulation of a Tethered Satellites Borne InSAR System

作　　者：来驰攀[1] 穆冬[1] 刘爱芳[1] 张锦锈 LAI Chipan;MU Dong;LIU Aifang;ZHANG Jinxiu(Nanjing Reserach Institute of Electronics Technology,Nanjing 210039,China;School of Physics and Astronomy The Center of the Harp,Sun Yat Sen University,Guangzhou 510275,China)

机构地区：[1]南京电子技术研究所,南京210039 [2]中山大学物理与天文学院/天琴中心,广州510275

出　　处：《现代雷达》2021年第2期20-26,共7页Modern Radar

摘　　要：文中回顾了世界天基干涉合成孔径雷达(InSAR)系统的发展历程,介绍了几个具有代表性的典型系统,讨论了一种基于系绳式卫星平台的天基InSAR系统的概念,并对系统的特点进行了介绍。针对系绳式卫星平台提出了一种InSAR有效载荷的概念方案设计,讨论了系统的关键参数设计,并对系统的性能进行了仿真,包括系统组成、工作方式、基线长度、工作波位设计,以及系统灵敏度、系统相干性仿真等。该研究可为系绳式InSAR和其他类似InSAR系统的设计提供有意义的参考。The development history of space-borne interferomatric synthetic aperture radar(InSAR)system is reviewed,several clas-sic systems are introduced.The concept of tethered sitellites borne InSAR system is discussed,and the characteristics of the system are summarized.For the tethered satellite platform,a conceptual design of effective payload is proposed,design of the key system parameters is discussed,and the simulation of the system performance is executed,including radar system scheme,work mode,sim-ulation beseline length,beam and timing design,system sensitivity and coherence simulation.The study can be used as reference for the design of tethered sitellites borne InSAR system or other similar InSAR systems.

关 键 词：系绳式卫星 天基雷达 干涉合成孔径雷达 数字高程模型 

分 类 号：TN959.74[电子电信—信号与信息处理]