| 基于CCD提高射电望远镜极轴校准精度及修正 |
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| 引用本文： | 张岩,颜毅华,谭程明,王威,黄亚芳.基于CCD提高射电望远镜极轴校准精度及修正[J].天文研究与技术,2011,8(1). |
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| 作者姓名： | 张岩 颜毅华 谭程明 王威 黄亚芳 |
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| 作者单位： | 中国科学院研究生院;中国科学院国家天文台;中国科学院太阳活动重点实验室(国家天文台); |
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| 基金项目： | 新一代厘米—分米波射电日像仪(ZDYZ2009-3)资助 |
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| 摘 要： | 射电望远镜极轴的安装定位是否准确直接影响其指向精度和成像质量,通过运用光学CCD原理精确测量射电望远镜极轴偏差角度,用以安装校准极轴,达到提高射电望远镜指向精度和成像质量的效果,并且结合计算机可实现多极轴同时校准,提高工作效率。同时,基于CCD技术可以及时发现天线极轴出现的偏差并进行修正,提高了数据的质量。
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| 关 键 词： | 日像仪 极轴 CCD 赤纬 分辨率 |
Precise Adjustment of the Polar Axis of a Radio Telescope Antenna with a CCD Camera |
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| Zhang Yan,Yan Yihua,Tan Chengming,Wang Wei,Huang Yafang.Precise Adjustment of the Polar Axis of a Radio Telescope Antenna with a CCD Camera[J].Astronomical Research & Technology,2011,8(1). |
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| Authors: | Zhang Yan Yan Yihua Tan Chengming Wang Wei Huang Yafang |
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| Institution: | Zhang Yan1,2,3,Yan Yihua2,Tan Chengming2,Wang Wei2,Huang Yafang1,2(1.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China,2.National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,3.Key Laboratory of Solar Activities,National Astronomical Observatories,Beijing,100012,China) |
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| Abstract: | This paper discusses a method to precisely adjust the polar axis of a radio telescope antenna with a CCD camera.The accuracy of the polar axis is crucial to imaging of a radio telescope,because pointing accuracy and image quality are related to the accuracy.The deviation angle of the polar axis can be precisely measured by a CCD.The measurement method can improve pointing accuracy and image quality.If a computer system is further used,the method can adjust multiple radio antennas at the same time,which incr... |
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| Keywords: | Radio heliograph Polar axis CCD Declination Resolution |
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