论文部分内容阅读
采用视线测量的方法,建立一种编队卫星队形保持与机动的协同控制策略。编队中每一个卫星跟踪自己轨道前方邻近卫星,产生一个视线测量矢量,编队的第一个卫星根据高级控制层指令追踪期望轨道,产生链式编队,将编队卫星之间的视线距离作为反馈控制量来实现队形控制。通过推导J2相对摄动力的表达式,控制模型考虑了模型不确定性和摄动影响,采用滑模控制器,实现了基于视线测量的编队卫星链式跟踪协同控制。仿真算例结果表明,该方法在实现编队卫星队形保持与整体机动控制上具有可行性。
Using the method of line-of-sight measurement, a cooperative control strategy of formation keeping and maneuvering of satellite formation is established. Each satellite in the formation tracks the neighboring satellites in front of its orbit to generate a line-of-sight measurement vector. The first satellite of the formation follows the desired orbit according to the advanced control layer commands, generating a chain formation that uses the line-of-sight distance between the formation satellites as the feedback control amount To achieve formation control. By deriving the expression of relative perturbation force J2, the control model considers the model uncertainty and perturbation effects. The sliding mode controller is used to realize coordinated tracking control of formation satellite chain based on sight line measurement. The simulation results show that this method is feasible to realize formation formation satellite tracking and overall maneuver control.