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25m与13m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。
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.
出处
《测绘学报》
EI
CSCD
北大核心
2018年第1期1-7,共7页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金(11178024
10973030
U1331205)~~
关键词
VLBI
射电望远镜
互掩分析
方法研究
VLBI
radio telescope
mutual shielding analysis
analytic method
