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星敏感器技术在射电望远镜指向测量中的应用
Alternative TitleThe application of star trackers in radio telescope pointing measurement
袁野1,2; 刘志勇1,2,3
2019-09-01
Source Publication中国科学:物理学 力学 天文学
ISSN1674-7275
Volume49Issue:9Pages:099510
Contribution Rank1
Abstract大型射电望远镜指向精度要求高,但自身跨度大易变形,其指向性能会受多种因素影响.且大型射电望远镜惯性较大,传统的波束扫描方式进行指向测量耗时较多,难以快速地进行.通过辅助设备精确地测量中心体的方向可以对上述测量和改正问题进行分解研究,可降低问题的复杂度且提高指向测量的效率.星敏感器技术可以通过对星图的拍摄和处理,以几赫兹的频率获得亚角秒精度的指向参数,能较好地满足中心体方向测量的要求.本文阐述了星敏感器辅助测量射电望远镜指向的原理,介绍了数个射电望远镜使用星敏感器技术开展的观测和测试情况,并对在大型射电望远镜上搭建低成本星敏感器系统进行了一定的探讨.
Other AbstractThe large radio telescope reacquires rigorous pointing performance, and its pointing performance can be influenced by much more factors due to its large scale. The conventional pointing measurement method would be time-consuming because of the telescope’s large inertia. An accurate direction measurement of the receiver cabin structure can transform the pointing measurement and correction problem into some less complex problems. The star tracker can provide pointing measurement data of sub-arcsecond precision at several Hz update rate, which satisfies the measurement needs well. We introduced the scheme to pointing the telescope with assistance of star trackers, and presented application examples of them on some radio telescopes. At last, we discussed some specific requirements of the star tracker used on large radio telescopes and the possibility of low-cost solutions with commercial cameras.
Correspondent Emailyuanye@xao.ac.cn
Keyword星敏感器 导星 射电望远镜 指向
DOI10.1360/SSPMA-2019-0034
Indexed ByCSCD ; 中文核心期刊要目总览
Language中文
CSCD IDCSCD:6579480
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3351
Collection射电天文研究室_已撤销团组_软件技术组
Corresponding Author袁野
Affiliation1.中国科学院新疆天文台;
2.中国科学院射电天文重点研究室;
3.中国科学院大学
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
袁野,刘志勇. 星敏感器技术在射电望远镜指向测量中的应用[J]. 中国科学:物理学 力学 天文学,2019,49(9):099510.
APA 袁野,&刘志勇.(2019).星敏感器技术在射电望远镜指向测量中的应用.中国科学:物理学 力学 天文学,49(9),099510.
MLA 袁野,et al."星敏感器技术在射电望远镜指向测量中的应用".中国科学:物理学 力学 天文学 49.9(2019):099510.
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