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本文利用GPS连续观测资料,从单天误差、重复率统计两方面对比分析了Gamit/Globk中6种不同计算方案的结果,重点分析了参考框架的选取与约束,并总结了利于形变研究和形变信息提取的数据处理方案:对小的区域网形变分析而言,定框架时不宜使用过多的测站,应该选区域网周边较稳定的点做为框架点进行GLORG计算,通过IGS轨道和IERS地球自转参数值保持区域网的定向,不必采用全球H文件,这样得到的计算结果精度更高,且利于显现区域形变信息。
In this paper, the results of six different calculation schemes in Gamit / Globk are compared and analyzed from single-day error and repetition rate statistics by using GPS continuous observation data. The selection and constraint of the reference frame are analyzed emphatically, and the conclusions that are conducive to deformation research and deformation Information extraction data processing program: For small regional network deformation analysis, the frame should not be used too much when the station should be selected more stable around the area as a GLOS point GLOS computing, through the IGS orbit and IERS Earth rotation parameter values maintain the orientation of the area network, and do not need to use the global H file, so the calculation result obtained is more accurate and beneficial to reveal the area deformation information.