方连伟, 史守峡, 蒋志勇. 柔性支撑快速反射镜伺服机构的参数辨识[J]. 红外与激光工程, 2021, 50(5): 20200303. DOI: 10.3788/IRLA20200303
引用本文: 方连伟, 史守峡, 蒋志勇. 柔性支撑快速反射镜伺服机构的参数辨识[J]. 红外与激光工程, 2021, 50(5): 20200303. DOI: 10.3788/IRLA20200303
Fang Lianwei, Shi Shouxia, Jiang Zhiyong. Servo mechanism parameter identification of fast steering mirror based on flexible supports[J]. Infrared and Laser Engineering, 2021, 50(5): 20200303. DOI: 10.3788/IRLA20200303
Citation: Fang Lianwei, Shi Shouxia, Jiang Zhiyong. Servo mechanism parameter identification of fast steering mirror based on flexible supports[J]. Infrared and Laser Engineering, 2021, 50(5): 20200303. DOI: 10.3788/IRLA20200303

柔性支撑快速反射镜伺服机构的参数辨识

Servo mechanism parameter identification of fast steering mirror based on flexible supports

  • 摘要: 首先提出了基于柔性支撑的双轴快速反射镜存在的问题;简要介绍了一种基于柔性支撑的双轴快速反射镜系统伺服机构的结构形式,给出了伺服机构的脉冲传递函数;讨论了基于相关-辅助变量递推最小二乘法的多输入多输出系统参数辨识原理与辨识方法,在此基础上提出了基于柔性支撑的双轴快速反射镜系统伺服机构的参数辨识算法,并对该方法进行了数值仿真;设计伺服机构参数辨识实验验证算法的可行性,并将实验结果与仿真结果进行对比。结果表明基于相关-辅助变量递推最小二乘法的多输入多输出系统参数辨识算法有效,辨识精度在预期的范围内,可以为快速反射镜系统的自适应控制提供数据支撑。

     

    Abstract: The problems of the two-axis fast steering mirror based on flexible support was put forward firstly, a servo mechanism structure of the two-axis fast steering mirror based on flexible support was introduced briefly, the pulse transfer function of the servo mechanism was established, the MIMO system parameter identification theory was discussed, and the method based on COR-IV method was analyzed. Based on the method, the identification method of servo mechanism based on flexible support for the two-axis fast steering mirror was proposed and simulated. The experiment for the identification of servo mechanism parameters was designed to verify the method and the experimental results were compared with theoretical calculations. The experimental results show that the MIMO system parameter identification algorithm based on the COR-IV method is effective, the identification accuracy is within the expected range, and the identification results can provide data support for the adaptive control of fast steering mirror.

     

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