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卫星编队飞行的探测目标指向动力学与控制方法研究
A Study on Dynamics and Control for Target Detection in Satellite Formation Flying
【摘要】 卫星编队飞行的相对轨道运动和姿态指向运动并不是彼此独立的,而是相互耦合的。利用几何学方法和编队卫星的相对位置与姿态指向的耦合关系推导了卫星编队飞行的姿态指向运动学和动力学方程。并运用指数趋近律滑模控制方法对系统进行耦合控制。仿真结果表明:耦合控制系统在不借助额外姿态测量信息的情况下可同时实现相对位置和姿态指向的精确控制。
【Abstract】 The orbit and attitude of satellite formation flying are usually regarded as uncoupled systems.However,this is not true.In this paper,coupled kinematics and dynamics equations of relative position and attitude pointing of satellites formation flying are derived.A sliding mode control based on exponent reaching law is applied to the coupled system.The simulation results show that the coupled control system can simultaneously drive the relative position and attitude pointing to the desired states without the measurement information about the attitude angle.
【Key words】 Satellite formation flying; Relative orbit; Attitude pointing; Coupled system; Sliding mode control;
- 【文献出处】 宇航学报 ,Journal of Astronautics , 编辑部邮箱 ,2009年03期
- 【分类号】V448.2
- 【被引频次】5
- 【下载频次】292