Application of an interferometric method in phasing the segmented primary mirrors of the high-aperture telescope
文献类型：期刊论文
| 作者 | Wang, Chenchen1,2; Fan, Xuewu1; Ma, Zhen1; Zou, Gangyi1,2; Li, Ruichang1,2 |
| 刊名 | OPTIK
 |
| 出版日期 | 2018 |
| 卷号 | 154页码:503-509 |
| 关键词 | Geometric Optical Design Infrared Imaging Image Analysis Modulation |
| ISSN号 | 0030-4026 |
| DOI | 10.1016/j.ijleo.2017.10.015 |
| 产权排序 | 1 |
| 英文摘要 | The main method to improve the resolution of optical system is enlarging the pupil of the optical system, and by using several or even more small segmented mirrors to get an equivalent large diameter primary mirror is a common way. When the optical system enters the orbit, it should deploy the segmented mirrors first. The image quality of the optical system is determined by the deployed position precision of segmented mirrors. The phase adjusting process can be divided into two processions: coarse phasing and fine phasing. In the coarse phasing, interferometer and electronic speckle pattern interferometry is used to ensure the co-phased position of segmented mirrors on the ground and to obtain stripes on the back of the segmented mirrors respectively. When the optical system is unfolded, obtain the stripe again. Process the former stripe images and the later ones by mean square error, which can obtain the similarity of two images. According to the shape of stripe pattern and the similarity, adjust the position of segmented mirrors to complete the process of large piston adjusting. And analyze the stripe that is obtained by processing the electronic speckle images after the process above. Adjust the position of segmented mirrors according to the results until the adjusting of coarse-phasing is completed. With the simulation results, when the position of segmented mirrors with 0.0001 degrees tilted or 5 nm decentered, the similarity of standard image and simulation results are about 92% and 95% respectively. (C) 2017 Elsevier GmbH. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000418731200064 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/30812]  |
| 专题 | 西安光学精密机械研究所_空间光学应用研究室 |
| 作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian, Shaanxi, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chenchen,Fan, Xuewu,Ma, Zhen,et al. Application of an interferometric method in phasing the segmented primary mirrors of the high-aperture telescope[J]. OPTIK,2018,154:503-509. |
| APA | Wang, Chenchen,Fan, Xuewu,Ma, Zhen,Zou, Gangyi,&Li, Ruichang.(2018).Application of an interferometric method in phasing the segmented primary mirrors of the high-aperture telescope.OPTIK,154,503-509. |
| MLA | Wang, Chenchen,et al."Application of an interferometric method in phasing the segmented primary mirrors of the high-aperture telescope".OPTIK 154(2018):503-509. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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