A Satellite Drift Scan Approach for Establishing the Pointing Model of Radio Telescopes
文献类型：期刊论文
| 作者 | Yuan, Ye2,3; Liu, Zhi-Yong1,2,4; Wang, Na1,2,4; Yan, Hao1,2,3 |
| 刊名 | ADVANCES IN ASTRONOMY
 |
| 出版日期 | 2025 |
| 卷号 | 2025期号:1页码:8503450 |
| ISSN号 | 1687-7969 |
| DOI | 10.1155/aa/8503450 |
| 产权排序 | 1 |
| 英文摘要 | In the era of large satellite constellations, there are more than 1000 satellites in orbit. While the signals from these satellites may pose a risk of radio frequency interference (RFI) to radio telescopes, they also present a potential advantage by serving as high-spatial-density pointing references for radio telescopes. Compared with traditional astronomical radio sources used for radio telescope pointing measurement, these satellites exhibit significantly higher signal-to-noise ratios (SNRs) and more uniform spatial distribution. However, due to the fact that the majority of these satellites are in low Earth orbit (LEO) and move at high velocities, radio telescopes encounter significant challenges in maintaining stable tracking and carrying out cross-scan observations. Therefore, a pointing measurement method utilizing drift-scan toward satellites was proposed. Given the diverse drift directions of satellites, the obtained pointing data encompass a wide range of directions. Therefore, this method is expected to be capable of establishing a pointing model based on scanning data from arbitrary directions. The measurement model and simulation experiments of this method were demonstrated. Furthermore, the feasibility of this method was validated using 25 m Nanshan Radio telescope (NSRT-25m). |
| WOS关键词 | CALIBRATION ; ERRORS |
| 资助项目 | National Key Research and Development Program of China[2021YFC2203501] ; National Key R&D Program of China[PTYQ2022YZZD01] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Fund for Astronomical Telescopes and Facility Instruments |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001520303400001 |
| 出版者 | WILEY |
| 资助机构 | National Key Research and Development Program of China ; National Key R&D Program of China ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Fund for Astronomical Telescopes and Facility Instruments |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7870]  |
| 专题 | 射电天文研究室_天线技术实验室 |
| 通讯作者 | Wang, Na |
| 作者单位 | 1.Xinjiang Key Lab Radio Astrophys, Urumqi, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron & Technol, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Ye,Liu, Zhi-Yong,Wang, Na,et al. A Satellite Drift Scan Approach for Establishing the Pointing Model of Radio Telescopes[J]. ADVANCES IN ASTRONOMY,2025,2025(1):8503450. |
| APA | Yuan, Ye,Liu, Zhi-Yong,Wang, Na,&Yan, Hao.(2025).A Satellite Drift Scan Approach for Establishing the Pointing Model of Radio Telescopes.ADVANCES IN ASTRONOMY,2025(1),8503450. |
| MLA | Yuan, Ye,et al."A Satellite Drift Scan Approach for Establishing the Pointing Model of Radio Telescopes".ADVANCES IN ASTRONOMY 2025.1(2025):8503450. |
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来源：新疆天文台
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