GNSS在线数据处理系统在工程控制网中的应用与分析

摘要

介绍目前几个主要的GNSS在线数据处理系统,着重利用其中5个GNSS在线数据处理系统对某工程控制网的观测数据进行多个方案的处理；对处理结果进行对比分析,检验其内符合精度；再利用框架和历元转换理论和方法,将多个系统处理获得的不同ITRF框架下2011即时历元的观测点坐标转换归算到CGCS2000坐标下进行对比,结果表明:GNSS在线数据处理系统完全能够满足工程控制网的数据处理、精度要求以及成果提交等需求.%Base on introducing several major GNSS online data processing systems,five of them are used in an engineering control network to process observations with several programs.The comparative analysis of results is given and inner precision is tested.Real time coordinates form different ITRF frameworks are transformed into CGCS 2000 coordinate system to compare the theory and methods of the framework and epoch transformation.The results show that:GNSS online data processing systems are fully able to meet the needs of data processing,precision requirements and results submitting etc.