A new calibration model for pointing a radio telescope that considers nonlinear errors in the azimuth axis
文献类型：期刊论文
| 作者 | Kong, De-Qing1 ; Wang, Song-Gen1,2; Wang, Jin-Qing3; Wang, Min4; Zhang, Hong-Bo1; Kong Deqing; Zhang Hongbo
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2014-06-01 |
| 卷号 | 14期号:6页码:733-740 |
| 关键词 | telescopes antennas pointing models |
| 英文摘要 | A new calibration model of a radio telescope that includes pointing error is presented, which considers nonlinear errors in the azimuth axis. For a large radio telescope, in particular for a telescope with a turntable, it is difficult to correct pointing errors using a traditional linear calibration model, because errors produced by the wheel-on-rail or center bearing structures are generally nonlinear. Fourier expansion is made for the oblique error and parameters describing the inclination direction along the azimuth axis based on the linear calibration model, and a new calibration model for pointing is derived. The new pointing model is applied to the 40 m radio telescope administered by Yunnan Observatories, which is a telescope that uses a turntable. The results show that this model can significantly reduce the residual systematic errors due to nonlinearity in the azimuth axis compared with the linear model. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000337717100011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6387]  |
| 专题 | 国家天文台_月球与深空探测研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Hangzhou Dianzi Univ, Coll Mech Engn, Hangzhou 310018, Zhejiang, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, De-Qing,Wang, Song-Gen,Wang, Jin-Qing,et al. A new calibration model for pointing a radio telescope that considers nonlinear errors in the azimuth axis[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(6):733-740. |
| APA | Kong, De-Qing.,Wang, Song-Gen.,Wang, Jin-Qing.,Wang, Min.,Zhang, Hong-Bo.,...&Zhang Hongbo.(2014).A new calibration model for pointing a radio telescope that considers nonlinear errors in the azimuth axis.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(6),733-740. |
| MLA | Kong, De-Qing,et al."A new calibration model for pointing a radio telescope that considers nonlinear errors in the azimuth axis".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.6(2014):733-740. |
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来源：国家天文台
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