智能通用卫星导航数据分析工具

An intelligent general analysis tool for satellite navigation data

位置精度是星载全球卫星导航系统(GNSS)接收机重要的性能指标。在精度分析过程中,传统分析工具无法同时处理多种坐标系下的定位、定轨数据,且存在非整秒历元数据无法与理论文件匹配等问题。针对这些问题,提出拉格朗日滑动式插值方法,设计出一种智能通用的卫星导航数据分析工具。有效地解决了非整秒历元时刻无法匹配理论数据的缺陷问题。利用该工具,可将分析过程中多个环节高度整合,自动完成多种坐标系下的坐标转换,实现全过程的自动分析。经验证,该工具可以准确、高效地完成不同类型数据的精度分析工作,较传统分析方法效率提高两倍以上。

As an important component of satellites,spaceborne Global Navigation Satellite System(GNSS)receivers are responsible for providing satellites with position information under high dynamics,so position accuracy is always an important performance index for GNSS receivers.In the process of precision analysis,traditional analysis tools cannot process positioning and orbit determination data in multiple coordinate systems at the same time,and there is a problem that the non-integer second metadata cannot match the theoretical file.In view of the above problems,a Lagrangian sliding interpolation method is adopted to design an intelligent and universal satellite navigation data analysis tool.It effectively solves the defect that the non-integer second epoch cannot match the theoretical data.The tool can be used to highly integrate multiple links in the analysis process,automatically complete coordinate conversion in a variety of coordinate systems,and realize automatic analysis of the entire process.It has been verified that this tool can accurately and efficiently complete the precision analysis of different types of data,which is more than twice as efficient as traditional analysis methods.