| 佘山25 m与13 m射电望远镜互掩问题分析 |
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| 引用本文： | 李金岭,温波,孙中苗,范庆元,贺更新,黄飞,柳聪.佘山25 m与13 m射电望远镜互掩问题分析[J].测绘学报,2018,47(1):1-7. |
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| 作者姓名： | 李金岭 温波 孙中苗 范庆元 贺更新 黄飞 柳聪 |
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| 作者单位： | 1. 中国科学院上海天文台, 上海 200030;2. 信息工程大学地理空间信息学院, 河南 郑州 450001;3. 西安测绘研究所, 陕西 西安 710000;4. 中国电子科技集团公司第三十九研究所, 陕西 西安 710065 |
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| 基金项目： | 国家自然科学基金（11178024；10973030；U1331205） |
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| 摘 要： | 应实际工程需要，本文分析了有限场地内两射电望远镜的互掩问题，提出了地平式（方位俯仰座架）射电望远镜外接球面的概念，给出了球冠缺面积的数值积分计算方法，并具体分析和计算了佘山25 m与13 m射电望远镜的互掩，对于工程设计阶段的站点位置选取、塔基高度设计等具有理论参考意义。分析方法也可供类似工程实践参考。
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| 关 键 词： | VLBI 射电望远镜 互掩分析 方法研究 |
| 收稿时间： | 2017-01-10 |
| 修稿时间： | 2017-10-15 |
Analysis of Mutual Shielding Effect Between the 25 m and 13 m Radio Telescope at Sheshan |
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| LI Jinling,WEN Bo,SUN Zhongmiao,FAN Qingyuan,HE Gengxin,HUANG Fei,LIU Cong.Analysis of Mutual Shielding Effect Between the 25 m and 13 m Radio Telescope at Sheshan[J].Acta Geodaetica et Cartographica Sinica,2018,47(1):1-7. |
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| Authors: | LI Jinling WEN Bo SUN Zhongmiao FAN Qingyuan HE Gengxin HUANG Fei LIU Cong |
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| Institution: | 1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China;2. School of Geographic Spatial Information, Information Engineering University, Zhengzhou 450001, China;3. Xi'an Institute of Surveying and Mapping, Xi'an 710000, China;4. No. 39 Research Institute, China Electronics Technology Group Corporation, Xi'an 710065, China |
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| Abstract: | In accordance with practical needs of a project,the mutual shielding effect between two radio antennas located within some limited area is analyzed in this paper.The concept of the externally connected sphere of an antenna in altazimuth(azimuth-elevation) mount is put forward.A calculation method via numerical integral of the area of a part of spherical crown is given.The mutual shielding effect between the 25 m and 13 m radio telescope at Sheshan is analyzed and estimated.The result is of theoretical reference meanings in the design phase of the project concerning the position selection and height design of the supporting tower of the 13 m antenna.The analytical idea and method can also be used as reference by similar engineering practice. |
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