GPS在线数据处理软件的精度分析

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

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。

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 lhour 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.