南宁CORS系统基准站地心大地坐标精确测定的方法与实践

采用地心坐标系已成为国际测量界的总趋势,而利用GPS连续运行参考站建立地心坐标框架最为普遍。利用GAM IT软件,采用有基准算法对南宁市全球导航连续运行参考站网络系统(NNCORS)的南宁基准站NANN的观测资料进行了归算,结果表明该基准站观测资料的质量是可靠的,并获得了该站在ITRF2000中毫米级精度的地心大地坐标。

Method and practical of precise determination of geocentric geodetic coordinates of NNCORS reference station

It is trend to using Geocentric Geodetic Coordinates in the field of international survey,and GPS station of Continuous Operation Reference System is the most universally method to build the frame of Geocentric Geodetic Coordinates.By using GAMIT GPS observation reduction software and the fiducially positioning method,the tracking data recorder by NANN GPS station of Nanning Continuous Operation Reference System(NNCORS) are processed.It is shown that the quality of the observation is high and the geocentric geodetic coordinates of NANN in ITRF2000 are obtained with a millimeter precision.