国家授时中心昊平站40 m口径射电天线相位中心参考点坐标的精密测定

给出国家授时中心昊平站40 m口径射电天线相位中心参考点坐标的测量技术方案，包括GPS控制网布设、观测及解算，天线旋转中心的测定与曲线拟合以及天线旋转中心坐标到参考点坐标的转化等。精度分析表明，所得的天线相位中心参考点在CGCS2000坐标系下的点位精度优于8 mm。

Precise Measurement of 40 m Caliber Radio Telescope Phase Center’s Reference Point Coordinates at the Haoping Station of National Time Service Center

The 40 m caliber radio telescope, at the Haoping station of the National Time Service Center, is crucial to satellite monitoring and maintenance work, but there is limited research on how to accurately measure the phase center reference point coordinates. Aiming at this problem, this article introduces the measurement solution of phase center reference point coordinates, including GPS control net setting, observation and data processing, the measurement of the rotation center’s coordinate and curve fitting, and the coordinate transformation of rotation center to reference point. The results of the precision analysis show that the accuracy of reference points is better than 8 mm in the CGCS2000 coordinate system.