高精度GPS基线处理的模型分析

Model analysis of baseline processing for high-precision GPS network

GPS基线处理是整个GPS数据处理的重要环节.如何研究和掌握一套高精度GPS基线处理的模型和方法,是测绘部门共同面临的重要课题,阐述了高精度GPS网基线处理的模型和方法,对GPS基线处理过程中的参考框架确定、星历选择、基准站确定,约束条件,起算坐标以及模型参数的关键问题进行了分析,并结合实例进行了数据处理和结果分析.

GPS baseline processing is an important step for GPS data processing. To research the model and method of high-precision GPS network baseline processing is full of significance on practical application. The author principally studies the model and method of GPS baseline processing for high-precision GPS network and analysed the key problems of baseline processing, Such as selecting reference frame and ephemeris,feference stration＇s coordinate,restriction Condition and the Parameters of the model. Combining with an example, the author processes the GPS data using GAMIT software and analyses the result. It analyses the key problem of baseline processing, such as selecting reference frame and ephemeris, reference station＇s coordinate,restriction condition and the paranaeters of the model.