High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering
Piston error is the main component of the co-phase errors of segmented telescopes. In this paper, we innovatively performed frequency domain filtering and processing on the focal plane image of the segmented telescopes with mask added, and obtained the image that only reflects the piston error betwe...
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| Format: | Article |
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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/10752339/ |
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| author | Dequan Li Dong Wang |
| author_facet | Dequan Li Dong Wang |
| author_sort | Dequan Li |
| collection | DOAJ |
| description | Piston error is the main component of the co-phase errors of segmented telescopes. In this paper, we innovatively performed frequency domain filtering and processing on the focal plane image of the segmented telescopes with mask added, and obtained the image that only reflects the piston error between each submirror and the reference submirror. The representation of feature image that reflects each submirror's piston error which obtained by this method is the same.Therefore, regardless of the number or the arrangement of submirrors, the single shallow convolutional neural network trained by any of the extracted submirror interference image dataset can be used to achieve high-precision detection of different submirror piston errors.Finally, simulation experiment results show the effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-7a8fafa8e5484cd2a33a74b68c501e3a |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-7a8fafa8e5484cd2a33a74b68c501e3a2024-11-26T00:00:04ZengIEEEIEEE Photonics Journal1943-06552024-01-011661610.1109/JPHOT.2024.349718210752339High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain FilteringDequan Li0https://orcid.org/0000-0003-0229-5159Dong Wang1Space Optics Department, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, ChinaSpace Optics Department, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, ChinaPiston error is the main component of the co-phase errors of segmented telescopes. In this paper, we innovatively performed frequency domain filtering and processing on the focal plane image of the segmented telescopes with mask added, and obtained the image that only reflects the piston error between each submirror and the reference submirror. The representation of feature image that reflects each submirror's piston error which obtained by this method is the same.Therefore, regardless of the number or the arrangement of submirrors, the single shallow convolutional neural network trained by any of the extracted submirror interference image dataset can be used to achieve high-precision detection of different submirror piston errors.Finally, simulation experiment results show the effectiveness of the proposed method.https://ieeexplore.ieee.org/document/10752339/Segmented telescopepiston sensingfrequency domain filtering |
| spellingShingle | Dequan Li Dong Wang High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering IEEE Photonics Journal Segmented telescope piston sensing frequency domain filtering |
| title | High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering |
| title_full | High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering |
| title_fullStr | High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering |
| title_full_unstemmed | High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering |
| title_short | High Precision Piston Error Sensing of Segmented Telescope Based on Frequency Domain Filtering |
| title_sort | high precision piston error sensing of segmented telescope based on frequency domain filtering |
| topic | Segmented telescope piston sensing frequency domain filtering |
| url | https://ieeexplore.ieee.org/document/10752339/ |
| work_keys_str_mv | AT dequanli highprecisionpistonerrorsensingofsegmentedtelescopebasedonfrequencydomainfiltering AT dongwang highprecisionpistonerrorsensingofsegmentedtelescopebasedonfrequencydomainfiltering |