Mode-Voltage Constrained Control for Adaptive Optics System
In the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process. However, due to the limited sensitivity of the Shack-Hartmann wavefront sensor in detecting piston aberration, it becomes necessary to constrain piston...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10538002/ |
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| author | Ruitao Wang Youming Guo Nanfei Yan Ying Yang Lanqiang Zhang Qiong Tu Lingxiao Li Changhui Rao |
| author_facet | Ruitao Wang Youming Guo Nanfei Yan Ying Yang Lanqiang Zhang Qiong Tu Lingxiao Li Changhui Rao |
| author_sort | Ruitao Wang |
| collection | DOAJ |
| description | In the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process. However, due to the limited sensitivity of the Shack-Hartmann wavefront sensor in detecting piston aberration, it becomes necessary to constrain piston aberration caused by the deformable mirror. This paper introduces a straightforward and efficient decoupling control algorithm that is based on mode-voltage constraints. The proposed algorithm utilizes the mode method to decompose the control voltage mode, constructs a transition matrix to avoid piston and tip/tilt aberrations, and combines this matrix with the response matrix of the deformable mirror to generate a new reconstruction matrix. The direct slope algorithm is used to obtain the mode coefficient of the control voltage, which is then followed by obtaining the constrained control voltage through the proportional-integral controller and transition matrix. Simulation results demonstrate that this algorithm outperforms both the traditional vector project-constraint algorithm and the projection-based decoupling algorithm. The experimental results demonstrate the effective suppression of coupling between the deformable mirror and tip/tilt mirror by this algorithm, leading to a higher Strehl Ratio and improved correction for first 44-order Zernike mode aberrations. |
| format | Article |
| id | doaj-art-ff167ad9b22243d6b6bdd4f54590bc14 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-ff167ad9b22243d6b6bdd4f54590bc142025-01-24T00:00:31ZengIEEEIEEE Photonics Journal1943-06552024-01-011631610.1109/JPHOT.2024.340439710538002Mode-Voltage Constrained Control for Adaptive Optics SystemRuitao Wang0https://orcid.org/0009-0005-2932-0088Youming Guo1https://orcid.org/0000-0002-4409-5713Nanfei Yan2Ying Yang3Lanqiang Zhang4https://orcid.org/0000-0003-1641-4825Qiong Tu5https://orcid.org/0009-0006-7145-4490Lingxiao Li6Changhui Rao7https://orcid.org/0000-0001-8571-8502National Laboratory on Adaptive Optics, Chengdu, ChinaNational Laboratory on Adaptive Optics, Chengdu, ChinaNational Laboratory on Adaptive Optics, Chengdu, ChinaNational Laboratory on Adaptive Optics, Chengdu, ChinaNational Laboratory on Adaptive Optics, Chengdu, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, ChinaKey Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, ChinaNational Laboratory on Adaptive Optics, Chengdu, ChinaIn the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process. However, due to the limited sensitivity of the Shack-Hartmann wavefront sensor in detecting piston aberration, it becomes necessary to constrain piston aberration caused by the deformable mirror. This paper introduces a straightforward and efficient decoupling control algorithm that is based on mode-voltage constraints. The proposed algorithm utilizes the mode method to decompose the control voltage mode, constructs a transition matrix to avoid piston and tip/tilt aberrations, and combines this matrix with the response matrix of the deformable mirror to generate a new reconstruction matrix. The direct slope algorithm is used to obtain the mode coefficient of the control voltage, which is then followed by obtaining the constrained control voltage through the proportional-integral controller and transition matrix. Simulation results demonstrate that this algorithm outperforms both the traditional vector project-constraint algorithm and the projection-based decoupling algorithm. The experimental results demonstrate the effective suppression of coupling between the deformable mirror and tip/tilt mirror by this algorithm, leading to a higher Strehl Ratio and improved correction for first 44-order Zernike mode aberrations.https://ieeexplore.ieee.org/document/10538002/Deformable mirrordecoupling control algorithmadaptive optics system |
| spellingShingle | Ruitao Wang Youming Guo Nanfei Yan Ying Yang Lanqiang Zhang Qiong Tu Lingxiao Li Changhui Rao Mode-Voltage Constrained Control for Adaptive Optics System IEEE Photonics Journal Deformable mirror decoupling control algorithm adaptive optics system |
| title | Mode-Voltage Constrained Control for Adaptive Optics System |
| title_full | Mode-Voltage Constrained Control for Adaptive Optics System |
| title_fullStr | Mode-Voltage Constrained Control for Adaptive Optics System |
| title_full_unstemmed | Mode-Voltage Constrained Control for Adaptive Optics System |
| title_short | Mode-Voltage Constrained Control for Adaptive Optics System |
| title_sort | mode voltage constrained control for adaptive optics system |
| topic | Deformable mirror decoupling control algorithm adaptive optics system |
| url | https://ieeexplore.ieee.org/document/10538002/ |
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