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| 光学望远镜静态指向模型的对比与分析 | |
| Alternative Title | Comparison and analysis of static pointing models for optical telescopes |
王勇 ; 牛虎彪; 孙伟超; 林星魁; 冯国杰; 艾力·伊沙木丁
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| 2023-11-01 | |
| Source Publication | 应用光学
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| ISSN | 1002-2082 |
| Volume | 44Issue:S2Pages:49-58 |
| Contribution Rank | 1 |
| Abstract | 为了提高中小口径光学望远镜的指向精度，提升望远镜的运行效率。以南山 1.2 米光学望远镜为研究对象，开展了多样本多模型的验证工作。采集不同数量的恒星目标，记录目标跟踪过程中的方位、俯仰、以及偏差数据。通过分析恒星目标的分布规律及望远镜的轴系误差等因素，建立了望远镜的指向修正模型。采用 matlab 中矩阵运算以及最小二乘拟合法求解，得到了望远镜的指向模型系数。通过对望远镜指向模型系数的稳定性、指向误差的分布趋势、指向精度以及偏差数据的正态性检验等方面的分析，给出了各个指向模型的特性。通过拟合不同目标指向精度的分布趋势，给出了南山 1.2 米光学望远镜最优模型下最佳采集样本数量的范围。经过比对，机架模型比较符合该望远镜的应用场景。经过机架指向模型修正后，该望远镜指向的内复合精度由 256.9″提高到 3.3″。满足了各类天文观测及其他领域交叉应用的需求。 |
| Other Abstract | In order to improve the pointing accuracy and operation efficiency of the medium and small aperture optical telescope，with the Nanshan 1.2 m optical telescope as the research object, the verification work of multiple models was carried out. Different numbers of stellar targets were collected, and the azimuth, pitch and deviation data were recorded during the target tracking process. By analyzing the distribution law of stellar targets and the shafting errors of the telescope, the pointing correction model of the telescope was established. The pointing model coefficients of the telescope were obtained by using matrix operation and least squares fitting method in Matlab. Based on the analysis of the stability of the pointing model coefficients, the distribution trend of pointing errors, the pointing accuracy and the normality test of the deviation data, the characteristics of each pointing model were given. By fitting the distribution trend of different target pointing accuracy, the range of optimal sample quantity under the optimal model of Nanshan 1.2 m optical telescope was given. After comparison, the frame model accords with the application scenario of the telescope. Through the modification of the frame pointing model, the internal composite accuracy of the telescope pointing is improved from 256.9" to 3.3"， which meets the needs of various astronomical observations and cross applications in other fields. |
| Keyword | 光学望远镜 指向精度 指向模型 最小二乘拟合 机架模型 |
| Indexed By | 中文核心期刊要目总览 |
| Language | 中文 |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6633 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | 牛虎彪 |
| Affiliation | 中国科学院新疆天文台光学天文与技术应用研究室,新疆乌鲁木齐 |
| First Author Affilication | Optical Astronomy Research Laboratory |
| Corresponding Author Affilication | Optical Astronomy Research Laboratory |
| Recommended Citation GB/T 7714 | 王勇,牛虎彪,孙伟超,等. 光学望远镜静态指向模型的对比与分析[J]. 应用光学,2023,44(S2):49-58. |
| APA | 王勇,牛虎彪,孙伟超,林星魁,冯国杰,&艾力·伊沙木丁.(2023).光学望远镜静态指向模型的对比与分析.应用光学,44(S2),49-58. |
| MLA | 王勇,et al."光学望远镜静态指向模型的对比与分析".应用光学 44.S2(2023):49-58. |
| Files in This Item: | ||||||
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| 王勇-2023-光学望远镜静态指向模型的（4762KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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