›› 2010, Vol. 30 ›› Issue (5): 9-15.

• 研究探讨 • 上一篇    下一篇

干涉SAR卫星编队波束同步方法

贺东雷1, 曹喜滨2, 马骏1, 刘品雄1   

  1. (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)
  • 收稿日期:2009-11-05 修回日期:2010-01-22 出版日期:2010-10-25 发布日期:2010-10-25
  • 作者简介:贺东雷 1979年生,2008年获哈尔滨工业大学飞行器设计专业博士学位。工程师,研究方向为InSAR卫星编队设计与控制。

Beam Synchronization Strategy for DistributedInSAR Satellites Formation

 HE  Dong-Lei1, CAO  Xi-Bin2, MA  Jun1, LIU  Pin-Xiong1   

  1. (1 China Academy of Space Technology, Beijing 100094) (2 Research Center of Satellite Technology, Harbin Institute of Technology, Harbin 150080)
  • Received:2009-11-05 Revised:2010-01-22 Online:2010-10-25 Published:2010-10-25

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。

关键词: 合成孔径雷达, 偏航导引, 波束同步, 卫星编队

Abstract: 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.

Key words: Synthetic aperture radar, Yaw steering, Beam synchronization, Satellites formation