GNSS数据处理中框架点的选取方法研究

摘要

总结一种确定刚体板块内稳定台站选取的方法,即首先分析各台站的数据质量,然后利用7参数法进行精选,并对精选台站进行监督分类,最后使台站空间分布均匀化,以此选择GNSS数据处理中的IGS框架点,以建立精确的地球参考框架.%The stations constrained on international terrestrial reference frame (ITRF) are usually chosen with some random and uncertainties, which directly affects the precision and reliability of ITRF. A system method to select stations on the rigid plate was summarized. Firstly, analysing the quality of data at each station, the second step is rigorous selection of the stations 7 parameters transformation. The third step is supervision clustering to eliminate some stations that is largely affected by local diastrophism and finally, we make stations well-proportioned spacial distribution. With by using the method, IGS frame station can be chosen in GNSS data processing to establish high precision terrestrial reference frame.