GPS在线数据处理软件的精度分析

对3种有代表性的GPS在线数据处理软件的解算精度进行了分析与比较,得出如下结论:1)用1h的数据量,AUSPOS的精度为cm级,而SCOUT和CSRS-PPP的精度为dm级;2)数据量在2～6h之间,3种软件的精度都可达到cm级;3)数据量在6h以后,AUSPOS和SCOUT的精度均可达到mm级,但CSRS-PPP的精度仍为cm级。研究结果对实际工作有一定的参考价值。

Analysis of the Precision of On-Line GPS Data Processing Software

Based on the comparison and analysis of the solutions of three types of representative on-line GPS data processing software,it is concluded that: (1) if 1hour data amount is used to generate the solution,the precision of coordinate generated by AUSPOS is cm level,while the precision of coordinate generated by SCOUT and CSRS-PPP is dm level;(2) if the data amount used to generate the solution is between 2 hour and 6 hour, the precision of coordinate generated by AUSPOS,SCOUT and CSRS-PPP is all up to cm level; (3) if the data amount is more than 6 hour, the precision of the solution generated by AUSPOS and SCOUT can be up to mm level, while the precision of coordinate generated by CSRS-PPP is still cm level. The result of this research has a value of reference in selecting proper on-line GPS data processing software and determining data collecting time.