光学精密工程2024，Vol.32Issue(20)：3017-3025,9.DOI:10.37188/OPE.20243220.3017
大型望远镜指向精度的影响因素及综合修正模型研究
Research on factors influencing the pointing accuracy of large telescopes and the correction model
摘要
Abstract
Pointing accuracy is an important index to measure the performance of a telescope system.With the increasing of the aperture,structure size and weight of the telescope,it is more and more difficult to maintain and improve the pointing accuracy.Therefore,it is necessary to make a theoretical analysis of the factors affecting the errors of large telescopes,establish a mathematical model,and correct the point-ing errors.In this paper,based on the structural characteristics of large aperture telescope,various factors affecting the pointing accuracy of the telescope were analyzed,and a method of setting up a pointing model to correct the pointing accuracy of the telescope was proposed.The modified model proposed in this paper had clear physical meaning and little correlation of parameters.The model proposed in this paper was used to correct the pointing accuracy of a large telescope,and the root-mean-square error of the azimuth point-ing accuracy was 20.6"before correction and 4.1"after correction,and the root-mean-square error of the elevation pointing accuracy was 5.1"before correction and 2.8"after correction.Experimental results show that by using the model proposed in this paper,It can effectively correct the systematic errors of the telescope and improve the pointing accuracy.关键词
大口径望远镜/指向精度/恒星标校/误差修正Key words
large aperture telescope/pointing accuracy/star calibration/error correction分类
机械工程引用本文复制引用
陈宝刚,夏豪杰,张进,王建立,曹玉岩..大型望远镜指向精度的影响因素及综合修正模型研究[J].光学精密工程,2024,32(20):3017-3025,9.基金项目
国家自然科学基金(No.12303084) （No.12303084）
吉林省自然科学基金(No.20240101309JC) （No.20240101309JC）
