长春国土C级GPS网数据处理与精度分析

摘要

Based on the Changchun land grade C GPS network data analysis and through the high precision GAMIT software solution to determine the strict datum control network based on the geocentric coordinate,the paper integrates the control network into the ITRF reference frame,along with the known coordinate of the global station data in the ITRF frame reference station.Jilin CORS station and IGS tracking stations are combined to gain the control of a point coordinate.Finally,the precision of the control network is analyzed in detail.%从长春国土C级GPS网的数据进行分析,通过高精度GAMIT软件进行解算,为了确定在严格基准下的控制网地心坐标,将控制网纳入到ITRF参考框架中,加上了ITRF参考框架中测站坐标已知的全球站数据一起处理,将吉林省CORS站与IGS跟踪站进行联测,获得控制网某点的瞬时坐标.最后,对整个控制网的精度进行了详细的分析.