模型参考算法在快速反射镜中的应用  

Application of model reference adaptive algorithm in fast-steering mirrors

作　　者：杨东[1,2,3] 毛耀[1,2] 丁科[1,2] 李志俊[1,2] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]中国科学院光束控制重点实验室,四川成都610209 [3]中国科学院大学,北京100049

出　　处：《红外与激光工程》2013年第10期2790-2795,共6页Infrared and Laser Engineering

基　　金：国家863课题子项目

摘　　要：快反镜是光电跟踪系统中精跟踪系统的核心部件。精密光电跟踪系统要求快反镜闭环控制系统既具有高的扰动抑制能力又具有快的响应速度和高的跟踪精度。运用理论建模方法得出了快反镜的四阶模型结构,通过实验建模方法建立了仿真中用到的快反镜的三阶模型。在拟定快反镜为三阶模型后,选择了响应速度很快,响应精度很高的三阶理想模型作为模型参考自适应控制算法中的参考模型。在快反镜之前叠加正弦信号模拟干扰,通过大量仿真研究,说明用这种自适应控制算法能有效地抑制干扰,使快反镜输出很好地跟随参考模型。由于参考模型响应速度很快,响应精度很高,所以基于该自适应控制算法的快反镜控制系统具有很快的响应速度与很高的响应精度。Fast-steering mirrors is the core component of fine tracking system in the electro-optical tracking system. In order to meet the requirements of electro-optical tracking system, the fast-steering mirrors close-loop control system must has high disturbance rejection ability, fast tracking ability and high tracking accuracy. A fourth-order model structure by the approach of theoretical modeling and the needed third-order model structure by the approach of experimental modeling were obtained. After confirming the needed third-order model, an ideal third-order model was chosen which responses fast and precisely to be a reference model in the adaptive control algorithm. For simulating interference, two sinusoidal signals were put in front of the FSM. A large number of simulations explained that, interference could be suppressed efficiently by use of the adaptive control algorithm, and that the third-order reference model could be followed precisely. Since the reference model responses fast and precisely, the FSM control system based on the adaptive control algorithm has the ability of responsing fast and precisely.

关 键 词：精跟踪 快反镜 模型参考自适应控制 

分 类 号：TN929.1[电子电信—通信与信息系统]