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。
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.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2015年第2期57-62,78,共7页
Chinese Space Science and Technology
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
Optical imaging camera
Sunlight avoidance
Attitude maneuver
Avoid angles remain
Remote sensing satellite
