分布式小卫星合成孔径雷达的空间编队构形研究  

Configuration design of distributed small satellites synthetic aperture radar

作　　者：黄卫东[1] 张育林[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《电波科学学报》2005年第2期207-211,共5页Chinese Journal of Radio Science

摘　　要：合理的空间编队构形是实现分布式小卫星SAR系统功能的基础。着重讨论分布式小卫星合成孔径雷达(SAR)空间编队构形的设计问题。分析了实现三维地形成像、提高空间分辨率和动目标检测三种系统功能时,空间编队构形设计所需解决的问题,提出了进行分布式小卫星SAR空间编队构形设计的三个最优化准则,给出了空间编队构形的评估方法,并对现有的几种分布式小卫星SAR的空间编队构形进行分析。最后根据分布式小卫星SAR的空间编队构形,通过与单颗星载SAR回波信号相比较,分析了分布式小卫星SAR回波信号的特点,为其数据处理提供参考。The implementation of distributed small satellites synthetic aperture radar (DSS-SAR) missions is on the basis of reasonable formation of small satellite cluster. The formation design of small satellite cluster for DSS-SAR is focused. For achieving topographic mapping, spatial resolution improving and moving target detection, a three-dimensional optimal rule is proposed for configuration design of DSS-SAR, and an evaluation method of formation of small satellite cluster is presented and the evaluation results of Cartwheel, Pendulum and Carpe formation are obtained. Finally, the characteristic of DSS-SAR signal is analyzed in comparison with conventional spaceborne SAR.

关 键 词：分布式小卫星SAR 编队构形 设计 信号 

分 类 号：TN957[电子电信—信号与信息处理]