| 测定天文大气折射和建立电磁波折射延迟实测模型(Ⅴ)-视天顶距测定值的取得 |
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| 引用本文： | 杨磊,铁琼仙,李彬华,张捍卫,冒蔚.测定天文大气折射和建立电磁波折射延迟实测模型(Ⅴ)-视天顶距测定值的取得[J].天文研究与技术,2005,2(4):265-271. |
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| 作者姓名： | 杨磊 铁琼仙 李彬华 张捍卫 冒蔚 |
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| 作者单位： | 中国科学院国家天文台云南天文台 云南昆明650011
(杨磊，铁琼仙，张捍卫)，昆明理工大学 云南昆明650051
(李彬华)，中国科学院国家天文台云南天文台 云南昆明650011(冒蔚) |
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| 摘 要： | 简述了测定瞬时大气折射值以及建立电磁波折射延迟改正模型时,对视天顶距测定值的精度要求和消除系统误差的必要性;根据新的仪器误差理论,文章采取与国外高精度测量仪器的误差测量方法相对比的方式,介绍了专用测量仪器的各种主要误差的测定方法及其所能达到的精度;还介绍了在不同方位的观测时,视频CCD图像中星像的分布情况。
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| 关 键 词： | 仪器误差 视天顶距 测定精度 |
| 文章编号： | 1672-7673(2004)04-0265-07 |
| 修稿时间： | 2005年5月27日 |
Determining the Astronomical Refraction and Building the Radio Wave Refractive Delay Model Measured(Ⅴ)-Acquisition of Measured Apparent Zenith Distances |
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| YANG Lei,TIE Qiong-xian,LI Bin-hua,ZHANG Han-wei,MAO Wei.Determining the Astronomical Refraction and Building the Radio Wave Refractive Delay Model Measured(Ⅴ)-Acquisition of Measured Apparent Zenith Distances[J].Astronomical Research & Technology,2005,2(4):265-271. |
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| Authors: | YANG Lei TIE Qiong-xian LI Bin-hua ZHANG Han-wei MAO Wei |
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| Institution: | YANG Lei~1,TIE Qiong-xian~1,LI Bin-hua~2,ZHANG Han-wei~1,MAO Wei~1 |
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| Abstract: | The demands on accuracy of measured apparent zenith distances and the necessity of elimination of systematic errors during the time of determining the astronomical refraction and building the radio wave refractive delay corrective model are described concisely.According to the new instrumental error theory,compared with error determination techniques used in foreign high accuracy measurment instruments,measurement techniques of all kinds of major errors used in the special measurment instrument and their achievable accuracies are described.Distribution of stars in video CCD images when observed in different azimuths is also presented. |
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| Keywords: | instrumental error apparent zenith distance determination accuracy |
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