基于视线测量的卫星编队机动控制方法  

Coordinated Maneuver of Spacecraft Formation Based on Line-of-sight Measurement

作　　者：张薇[1] 冯孝辉[2] 邓忠民[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100191 [2]航天东方红卫星有限公司,北京100094

出　　处：《中国空间科学技术》2012年第2期77-83,共7页Chinese Space Science and Technology

基　　金：国家自然科学基金(10972019)资助项目

摘　　要：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。Based on the line-of-sight measurement, a cooperative control method for leaderless formation flight is presented. Line-of-sight vector measurement is generated when each satellite in a formation tracks its neighboring spacecraft. The first member of the formation tracks the desired orbit according to the command from a high level controller. A chain formation is generated. Distances between line-of-sight measurements are taken as feedback of the formation controller. The relative perturbation equations are provided to make sure that modeling uncertainties and perturbations are considered in the control strategy. Cyclic formation control is performed via sliding mode controller. Simulation results show that the proposed control method can be used for satellite formation maintenance and maneuver.

关 键 词：卫星编队 视线测量 协同控制 滑模控制 微小卫星 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]