Decoupling control of fast steering mirror based on dual feedforward + dual neural network adaptive

被引：3
|
作者：
Wang R. [1 ,2 ]
Su X. [1 ,3 ]
Qiao Y. [1 ]
Lv T. [1 ]
Wang X. [1 ,2 ]
Wang K. [1 ,2 ]
机构：
[1] Key Laboratory of Space Precision Measurement Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an
[2] University of Chinese Academy of Sciences, Beijing
[3] Pilot National Laboratory for Marine Science and Technology, Qingdao
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2021年 / 50卷 / 11期
关键词：
Decoupling; Dual feedforward; Dual neural network adaptive; Positioning accuracy; Two-axis fast steering mirror;
D O I：
10.3788/IRLA20210194
中图分类号：
学科分类号：
摘要：
Two-axis fast steering mirror based on flexure hinge support and voice coil motor drive is a strong coupling system with two inputs and two outputs. The coupling between X-axis and Y-axis greatly reduces the positioning accuracy of the fast steering mirror. It is difficult to achieve high precision decoupling control by using traditional PID control algorithm. Based on the centrosymmetric and axisymmetric two-axis fast steering mirror, the coupling sources of the two-axis fast steering mirror-DC coupling component and non-DC coupling component were analyzed theoretically, and the coupling physical model of between X-axis and Y-axis was established. A dual feedforward + dual neural network adaptive decoupling control algorithm was proposed to respectively compensate DC coupling components and non-DC coupling components. Experimental results show that, compared with the traditional PID control algorithm, the coupling degree of the proposed algorithm is reduced from about 5% to less than 1.0‰, which significantly improves the positioning accuracy from about 2.5% to less than 0.5‰. © 2021, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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  • [1] 3, pp. 1-42, (1989)
  • [2] Ma Jiaguang, Tang Tao, Review of compound axis servomechanism tracking control technology, Infrared and Laser Engineering, 42, 1, pp. 218-227, (2013)
  • [3] Brown D C, Pruyn K., Flexure pivots for oscillatory scanners, Proceedings of SPIE - The International Society for Optical Engineering, 4773, pp. 12-26, (2002)
  • [4] Kluk D J., An advanced fast steering mirror for optical communication [DB/OL], (2007)
  • [5] Lu Yafei, Research on fast/fine steering mirror system, (2009)
  • [6] Wu Songhang, Dong Jihong, Xu Shuyan, Et al., Multi-objective optimal design of elliptic flexible hinge in fast steering mirror, Infrared and Laser Engineering, 50, 4, (2021)
  • [7] Ai Zhiwei, Ji Jianbo, Wang Pengju, Et al., Integrative design of structure control for two-axis fast steering mirror with flexible support, Infrared and Laser Engineering, 49, 7, (2020)
  • [8] Wang Kaidi, Su Xiuqin, Li Zhe, Et al., Time-frequency characteristics optimal control of fast steering mirror for image motion compensation, Infrared and Laser Engineering, 47, S1, (2018)
  • [9] Wang H, Chen B, Lin C, Et al., Observer-based neural adaptive control for a class of MIMO delayed nonlinear systems with input nonlinearities, Neurocomputing, 275, pp. 1988-1997, (2017)
  • [10] Mastorocostas Paris A, Theocaris, Et al., A recurrent fuzzy-neural model for dynamic system identification, IEEE Transactions on Systems, Man & Cybernetics-Part B: Cybernetics, 32, 2, pp. 176-190, (2002)
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