摘要
研究了敏捷遥感卫星侧摆过程中的姿态控制问题。针对敏捷遥感卫星需要进行大角度侧摆完成成像的姿态机动任务,采用控制力矩陀螺(CMG)作为姿态控制的执行机构,提出了一种面向侧摆机动的无显奇异斜装金字塔构型方案,设计了基于参考轨迹法规划的侧摆机动控制律,结合带零运动的伪逆操纵律进行侧摆机动,消除了显奇异对侧摆机动的不利影响。最后进行了仿真验证,结果表明斜装金字塔构型方案在预设参考轨迹的约束下能够完全回避内部显奇异,实现了遥感卫星敏捷姿态机动,有利于遥感数据的高效获取。
The attitude control problem of agile remote sensing satellite is focused in this paper. Aiming at the side-swing maneuver task of agile remote sensing satellite, control moment gyro(CMG) is used as attitude control actuator, a kind of oblique-mounted pyramid configuration scheme for side-swing is proposed. Based on reference trajectory method, a roll control law is designed, which is combined with the Moore-Penrose steering law with null motion in order to eliminating the negative influence that elliptic singularity generates. Finally, the simulation is finally completed, and the results show that the agile attitude maneuver of remote sensing satellite is realized by using CMGs with oblique-mounted pyramid configuration under the constraint of pre-set reference trajectory which can completely avoid elliptic singularity during the side-swing maneuver and improve the efficiency of acquisition of remote sensing data.
作者
杨楠
郁丰
栾天娇
马浩哲
Yang Nan;Yu Feng;Luan Tianjiao;Ma Haozhe(College of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Key Laboratory of Space Photoelectric Detection and Perception Nanjing University of Aeronautics and Astronautics,Ministry of Industry and Information Technology,Nanjing 210016,China;China Academy of Launch Vehicle Technology,Beijing 100076,China)
出处
《航天控制》
CSCD
北大核心
2022年第4期45-52,共8页
Aerospace Control
基金
国家自然科学基金(61673212)。
关键词
敏捷遥感卫星
控制力矩陀螺(CMG)
金字塔构型
奇异
姿态控制
Agile remote sensing satellite
Control moment gyro(CMG)
Pyramid configuration
Singularity
Attitude control
