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卫星平台的振动是降低光通信链路可靠性的一个重要因素。提出在精跟踪系统中采用自适应逆控制方案来抑制卫星平台振动的影响,从而实现对目标光通信终端的稳定跟踪。采用对象的自适应逆作为控制器来控制快速反射镜偏转,以保证系统的动态响应品质;采用自适应逆控制中的自适应扰动消除系统来抑制卫星平台的振动。实现了对象控制和扰动消除分开进行且不相互影响。仿真结果表明该控制律有效地实现了对输入的跟踪,且能较好地抑制扰动。
Satellite platform vibration is an important factor in reducing the reliability of optical communication links. The adaptive tracking control scheme is proposed to suppress the influence of satellite platform vibration in the tracking system, so as to realize the stable tracking of the target optical communication terminal. The adaptive inverse of the object is used as the controller to control the fast mirror deflection to ensure the dynamic response quality of the system. The adaptive disturbance rejection system in the adaptive inverse control is used to suppress the vibration of the satellite platform. The object control and disturbance elimination are realized separately and do not affect each other. The simulation results show that the control law can effectively track the input and suppress the disturbance better.