Active sub-reflector research for a large radio telescope
文献类型：期刊论文
| 作者 | Wang, Jin-Qing3; Zhao, Rong-Bin; Jiang, Yong-Chen; Sun, Zheng-Xiong; Yu, Lin-Feng; Fu, Li; Liu, Qin-Hui; Zheng, Wei-Min; Shen, Zhi-Qiang |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2020 |
| 卷号 | 20期号:1页码:8 |
| ISSN号 | 1674-4527 |
| 关键词 | radio telescope deformable sub-reflector model holography phase |
| DOI | 10.1088/1674-4527/20/1/9 |
| 通讯作者 | Wang, Jin-Qing(jqwang@shao.ac.rn) |
| 英文摘要 | This paper proposes an active sub-reflector suitable for large radio telescopes, which can compensate both of the deformation of the main reflector and sub-reflector position offsets. The mathematical formula of the main reflector deformation compensated by the sub-reflector is deduced based on Cassegrain and Gregory antenna structures. The position of the sub-reflector is adjustable to compensate for defocusing errors on high and low elevations, which are mainly caused by the deformation of the sub-reflector supporting legs. In this paper, the method of obtaining the optimum position of the sub-reflector from the aperture phase by the interferometric method is introduced. The actual measurement is verified on the Tianma 65m radio telescope, which provides a new way to diagnose the position error of the sub-reflector. |
| WOS关键词 | DEFORMABLE SUBREFLECTOR |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| WOS记录号 | WOS:000509305000001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/35575]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Wang, Jin-Qing |
| 作者单位 | 1.Shanghai Key Lab Space Nav & Positioning Tech, Shanghai 430074, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jin-Qing,Zhao, Rong-Bin,Jiang, Yong-Chen,et al. Active sub-reflector research for a large radio telescope[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(1):8. |
| APA | Wang, Jin-Qing.,Zhao, Rong-Bin.,Jiang, Yong-Chen.,Sun, Zheng-Xiong.,Yu, Lin-Feng.,...&Shen, Zhi-Qiang.(2020).Active sub-reflector research for a large radio telescope.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(1),8. |
| MLA | Wang, Jin-Qing,et al."Active sub-reflector research for a large radio telescope".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.1(2020):8. |
入库方式： OAI收割
来源：紫金山天文台
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