| 地平式望远镜轴系误差对指向精度和跟踪精度的影响 |
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| 引用本文： | 马锦,顾伯忠.地平式望远镜轴系误差对指向精度和跟踪精度的影响[J].天文研究与技术,2011,8(2). |
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| 作者姓名： | 马锦 顾伯忠 |
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| 作者单位： | 马锦,Ma Jin(中国科学院国家天文台南京天文光学技术研究所,江苏,南京,210042;中国科学院天文光学技术重点实验室,江苏,南京,210042;中国科学院研究生院,北京,100049);顾伯忠,Gu Bozhong(中国科学院国家天文台南京天文光学技术研究所,江苏,南京,210042;中国科学院天文光学技术重点实验室,江苏,南京,210042) |
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| 摘 要： | 采用球面几何的方法推导轴系位置误差对地平式望远镜指向、跟踪精度影响的计算模型.介绍2米级地平式望远镜轴系误差检测及数据处理方法.通过对目标星体指向、跟踪仿真,得到轴系位置误差对指向、跟踪精度影响规律,为轴系精度及轴系位置要求提供理论依据,并为后续控制修正提供参考模型.
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| 关 键 词： | 地平望远镜 指向精度 跟踪精度 坐标变换 轴系误差 |
Effects of the Shaft Error of an Altazimuth Telescope on Pointing and Tracking Accuracies |
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| Ma Jin,Gu Bozhong.Effects of the Shaft Error of an Altazimuth Telescope on Pointing and Tracking Accuracies[J].Astronomical Research & Technology,2011,8(2). |
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| Authors: | Ma Jin Gu Bozhong |
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| Institution: | Ma Jin1,2,3,Gu Bozhong1,2(1.National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China,2.Key Laboratory of Astronomical Optics & Technology,Nanjing Institute of AstronomicalOptics & Technology,3.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | It is a new tread to use altazimuth telescopes to increase diameters of modern astronomical telescopes.This paper adopts the spherical geometry to deduce how the shaft error of an altazimuth telescope affects its pointing and tracking accuracies.We describe the detection of the shaft errors of 2m-class telescopes and the processing of such detected data.This paper evaluates the impact of shaft error on pointing and tracking from simulations of pointings and trackings of a target star under the influence of ... |
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| Keywords: | Altazimuth telescope Pointing accuracy Tracking accuracy Coordinate transformation Shaft error |
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