特种监测网解算中IGS站选取的探讨

利用GAMIT/GLOBK软件处理2011年特种监测网的观测数据,将IGS站的选取分10种方案进行试验,计算结果从基线长度变化、测站坐标、NRMS、基线重复率等方面进行了比较。得出利用GAMIT/GLOBK软件处理该特种监测网时的几点建议:建议选取IGS站为GPS网提供参考框架;IGS站选取的数量不一定最多,但空间上应尽量均匀分布;选取7个IGS站时得到较高精度的结果。在日后处理此类型的特种监测网时对IGS站选取具有一定的参考价值。

A Discussion on Choice of IGS Stations for Resolving Special Monitoring Network

The 2011 year＇ s observation data from the special monitoring network has been processed with GAMIT/GLOBK software. In the test, the choice of IGS stations is divided into ten cases, and the results are compared from the line change of baseline, the site coordinates, NRMS, the repeat rate of baseline and so on. Some advices are given when processing GPS data of the special monitoring network with GAMIT/GLOBK software choosing the reference frame offered by IGS ; the quantity of IGS stations might not be the most, but the chosen of IGS stations should be well distributed in space as possible as they could;when choosing seven IGS stations, the precision is better. That will have some referenced value on the choice of IGS stations for processing a series of the special monitoring network in the future.