Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems
In this paper, a modified disturbance observer (DOB) for fast steering mirror (FSM) optical system based on a charge-coupled device (CCD) and inertial sensors is proposed. Combining a DOB with the classical cascaded multiloop feedback control, including position loop, velocity loop, and acceleration...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7904704/ |
| _version_ | 1818369897631055872 |
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| author | Chao Deng Tao Tang Yao Mao Ge Ren |
| author_facet | Chao Deng Tao Tang Yao Mao Ge Ren |
| author_sort | Chao Deng |
| collection | DOAJ |
| description | In this paper, a modified disturbance observer (DOB) for fast steering mirror (FSM) optical system based on a charge-coupled device (CCD) and inertial sensors is proposed. Combining a DOB with the classical cascaded multiloop feedback control, including position loop, velocity loop, and acceleration loop, that the disturbance suppression performance of line-of-sight in an FSM system can be significant improved. However, due to the quadratic differential in the FSM acceleration open-loop response, in fact, it is very difficult to realize an integral algorithm to compensate a quadratic differential in practical application. Thus, the conventional DOB controller has to be simplified further to make a concession, which eventuates in still insufficient disturbance compensation, particularly at low frequency. To solve this problem, an enhanced DOB control structure, which changes the compensation plant to be the acceleration open-loop and avoids the saturation of double integration skillfully, is proposed. The recommended method optimizes the controller design, which is conducive to controller fulfillment in practical systems. A series of comparative experimental results demonstrate that the disturbance suppression performance of the FSM control system can be effectively improved by the proposed approach. |
| first_indexed | 2024-12-13T23:31:09Z |
| format | Article |
| id | doaj.art-a36e4e5a696146c2b8d94d618506769f |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-13T23:31:09Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-a36e4e5a696146c2b8d94d618506769f2022-12-21T23:27:25ZengIEEEIEEE Photonics Journal1943-06552017-01-019311110.1109/JPHOT.2017.26954847904704Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror SystemsChao Deng0Tao Tang1Yao Mao2Ge Ren3Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, ChinaKey Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, ChinaKey Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, ChinaKey Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, ChinaIn this paper, a modified disturbance observer (DOB) for fast steering mirror (FSM) optical system based on a charge-coupled device (CCD) and inertial sensors is proposed. Combining a DOB with the classical cascaded multiloop feedback control, including position loop, velocity loop, and acceleration loop, that the disturbance suppression performance of line-of-sight in an FSM system can be significant improved. However, due to the quadratic differential in the FSM acceleration open-loop response, in fact, it is very difficult to realize an integral algorithm to compensate a quadratic differential in practical application. Thus, the conventional DOB controller has to be simplified further to make a concession, which eventuates in still insufficient disturbance compensation, particularly at low frequency. To solve this problem, an enhanced DOB control structure, which changes the compensation plant to be the acceleration open-loop and avoids the saturation of double integration skillfully, is proposed. The recommended method optimizes the controller design, which is conducive to controller fulfillment in practical systems. A series of comparative experimental results demonstrate that the disturbance suppression performance of the FSM control system can be effectively improved by the proposed approach.https://ieeexplore.ieee.org/document/7904704/Disturbance suppressiondisturbance observerfast steering mirroracceleration feedback control (AFC)line-of-sight (LOS) stabilization |
| spellingShingle | Chao Deng Tao Tang Yao Mao Ge Ren Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems IEEE Photonics Journal Disturbance suppression disturbance observer fast steering mirror acceleration feedback control (AFC) line-of-sight (LOS) stabilization |
| title | Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems |
| title_full | Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems |
| title_fullStr | Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems |
| title_full_unstemmed | Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems |
| title_short | Enhanced Disturbance Observer Based on Acceleration Measurement for Fast Steering Mirror Systems |
| title_sort | enhanced disturbance observer based on acceleration measurement for fast steering mirror systems |
| topic | Disturbance suppression disturbance observer fast steering mirror acceleration feedback control (AFC) line-of-sight (LOS) stabilization |
| url | https://ieeexplore.ieee.org/document/7904704/ |
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