›› 2015, Vol. 35 ›› Issue (2): 57-.doi: 10.3780/j.issn.1000-758X.2015.02.008

• 研究探讨 • 上一篇    下一篇

地球静止轨道遥感卫星相机太阳规避设计

  

  1. (北京控制工程研究所,北京 100190)
  • 出版日期:2015-04-25 发布日期:2015-04-25

Sunlight Avoidance Design for Camera of Geostationary Orbit Remote Sensing Satellite

  1. (Beijing Institute of Control Engineering, Beijing 100190)
  • Online:2015-04-25 Published:2015-04-25

摘要: 地球静止轨道成像式遥感卫星的光学成像相机在轨工作期间需要避免阳光的照射,针对现有滚动轴姿态机动算法存在规避开始时初始角速度过大的问题,提出一种改进的滚动轴机动太阳规避算法。该算法在规避开始与结束时,设计一定的规避角度余量,将建立机动初始状态的过程由达到规避角度的瞬间延伸到角度余量区间中,延长建立初始状态的时间,减小初始角速度。系统数学仿真和测试验证证明该算法简单可靠,在开始规避时,初始角速度由0.2(°)/s减小到0.014(°)/s,整个规避过程平稳,具有良好的工程应用价值。

关键词: 光学成像相机, 太阳规避, 姿态机动, 角度规避余量, 遥感卫星

Abstract: It is very important for the optical imaging camera of the geostationary remote sensing satellite to avoid sunlight during its operation in orbit. To overcome the overlarge initial angular velocity in most attitude maneuver algorithms, the optimized attitude maneuver algorithm was proposed for the rolling shaft, based on the design of avoid angle remain. The angle remain was designed at the beginning or end of sunlight avoidance.To establish the initial state of the maneuver the process changes from the moment of achieving the sunlight avoidance angle to the angle remain. This increases the time of establishing the initial state and decreases the initial angular velocity. The experiment results show that the optimized algorithm is simple and reliable, the initial angular velocity reduces from 0.2(°)/s to 0.014(°)/s, and the attitude is stable during sunlight avoidance.

Key words: Optical imaging camera, Sunlight avoidance, Attitude maneuver, Avoid angles remain, Remote sensing satellite