2 m级望远镜跟踪架控制系统动态性能分析

邓永停; 李洪文; 陈涛

doi:10.3788/OPE.20182603.0654

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2 m级望远镜跟踪架控制系统动态性能分析

微纳技术与精密机械 | 更新时间：2020-07-05

- 2 m级望远镜跟踪架控制系统动态性能分析
- Dynamic analysis of two meters telescope mount control system
- 光学精密工程 2018年26卷第3期页码：654-661
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
  
  [ "邓永停(1987-), 男, 山东潍坊人, 助理研究员, 博士, 主要从事望远镜精密跟踪控制技术的研究及电子学设计。E-mail:dyt0612@163.com" ]
  [ "李洪文(1970-), 男, 四川乐至人, 研究员, 博士生导师, 主要从事地基高分辨率成像光电望远镜电控系统总体设计及电机控制方面的研究。E-mail:lihongwen1970@yahoo.com" ]
- 基金信息：
  
  国家自然科学基金资助项目(11603024)
- DOI：10.3788/OPE.20182603.0654
  中图分类号：
- 收稿日期：2017-06-08，
  
  录用日期：2017-8-16，
  
  纸质出版日期：2018-03-25
- 稿件说明：
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邓永停, 李洪文, 陈涛. 2 m级望远镜跟踪架控制系统动态性能分析[J]. 光学精密工程, 2018,26(3):654-661.

Yong-ting DENG, Hong-wen LI, Tao CHEN. Dynamic analysis of two meters telescope mount control system[J]. Optics and precision engineering, 2018, 26(3): 654-661.
邓永停, 李洪文, 陈涛. 2 m级望远镜跟踪架控制系统动态性能分析[J]. 光学精密工程, 2018,26(3):654-661. DOI： 10.3788/OPE.20182603.0654.

Yong-ting DENG, Hong-wen LI, Tao CHEN. Dynamic analysis of two meters telescope mount control system[J]. Optics and precision engineering, 2018, 26(3): 654-661. DOI： 10.3788/OPE.20182603.0654.

摘要

为了增强望远镜的抗风载扰动能力，提高望远镜跟踪架的跟踪精度，本文对2 m望远镜跟踪架伺服控制系统的动态性能进行了测试和分析。首先，采用正弦扫描信号对望远镜跟踪架的结构和伺服系统进行了频率特性测试；其次，采用基于观测器/卡尔曼滤波器的辨识算法，对跟踪架控制系统的频率特性进行了模型辨识；最后，依据辨识获得的控制模型设计了位置和速度控制器，然后对2 m望远镜跟踪架伺服控制系统进行了目标观测实验，实验结果表明：当跟踪最大速度为3.5(°)/s，最大加速度为1(°)/s

的目标时，方位轴和俯仰轴的最大跟踪误差均小于4.5"，跟踪误差的RMS值分别为0.378 6"和0.151 6"，实验验证了跟踪架控制系统的良好性能。

Abstract

In order to enhance the ability of disturbance rejection for the telescope

and improve the tracking accuracy of the telescope mount control system

this paper analysis the dynamic of mount control system for the two meters telescope. Firstly

the frequency response of telescope mount control system is test using swept sine. Secondly

the Observer/Klaman filter algorithm is employed to identify the model for the mount control system. Finally

the position controller and speed controller are designed based on the mount control model. The experimental results of target observation show that max tracking errors of the azimuth and elevation axis are less than 4.5"

and the tracking error RMS are 0.378 6" and 0.151 6"

when the target moving with the max speed 3.5 (°)/s and the max acceleration 1 (°)/s

. The experiments verify the good dynamic of telescope mount control system.

关键词

Keywords

references

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