摘要
刚体卫星的大角度姿态机动可以用常规的四元数反馈控制,当挠性帆板的振动和中心刚体的耦合系数很大时,大角度快速机动后姿态的稳定度较差.结合特征建模理论,设计一种卫星大角度机动的黄金分割控制算法,对三轴带挠性帆板的航天器姿态机动进行仿真,仿真结果表明,机动完成后的控制精度比四元数反馈控制方法的精度高一个数量级以上.
The quaternion feedback control method can be used to the maneuver controlling of flexible satellites, but the attitude ability is beyond satisfactory level. Situation becomes worse, especially when the coupling between rigid body and flexible body is large. Once the vibration of flexible modes is stimulated, it is a hard task to attenuate the characteristic model-based designed to control the stimulates the vibration of vibration. In this paper, a golden section method is maneuver. This method flexible modes much less during the maneuver. Moreover, simulation results of this control method show a better accuracy than the one of quaternion feedback method.
出处
《空间控制技术与应用》
2009年第3期49-52,共4页
Aerospace Control and Application
基金
国家自然科学基金(60704014)资助项目
关键词
姿态快速机动
特征模型
黄金分割
fast attitude maneuver
characteristic model
golden section
