干涉SAR卫星编队波束同步方法  

Beam Synchronization Strategy for Distributed InSAR Satellites Formation

作　　者：贺东雷[1] 曹喜滨[2] 马骏[1] 刘品雄[1] 

机构地区：[1]中国空间技术研究院,北京100094 [2]哈尔滨工业大学卫星技术研究所,哈尔滨150080

出　　处：《中国空间科学技术》2010年第5期9-15,共7页Chinese Space Science and Technology

摘　　要：考虑到干涉SAR卫星编队姿态偏航导引要求,提出了两种兼顾偏航导引的编队波束同步方法。第一种方法结合星地、星间位置关系并通过坐标变换,规划了使系统满足波束同步要求的卫星姿态。考虑到该方法建模抽象、求解繁琐等不足,又提出了基于欧拉旋转的波束同步方法。数值仿真结果表明,两种方法均可有效实现系统波束同步,且后者效果更优。Considering the demands of yaw steering for InSAR satellite formation,two beam synchronization strategies meeting the demands of yaw steering were put forward.In the first strategy,by combining the position relationship between satellite-ground,and satellite-satellite and through coordinate transformation,SAR satellite′s attitude satisfying the demands of beam synchronization was programmed.However,the first strategy has shortcomings such as it is abstract to set up the model and tedious to solve the problem.Then,the second strategy based on Euler rotation was presented.Mathematical simulation shows that the two strategies can both effectively realize the beam synchronization,while the latter one is better.

关 键 词：合成孔径雷达 偏航导引 波束同步 卫星编队 

分 类 号：V412[航空宇航科学与技术—航空宇航推进理论与工程]