上海CORS站点的数据质量检测及可视化表达

Data quality detection and visual expression of Shanghai continuously operating reference stations

针对数据格式转换、元数据编辑及数据质量检查(TEQC)软件对基准站点的观测数据进行质量分析时,没有数据可视化这一缺点,通过自编程序实现原始观测数据的卫星可见性、卫星天空图、多路性效应及卫星高度角在矩阵实验室(MATLAB)中的可视化表达。利用TEQC及MATLAB进行基准站点数据质量的可视化,获得基准站站点数据质量,并用于分析周围环境是否发生变化。结合项目实例,分析得到上海连续运行参考站(CORS)站点数据质量符合建站标准且本文所使用的方法可为基准站站点搬迁选址的数据质量分析提供思路。

Translation,Editing and Quality Checking(TEQC)software is to analyze the observation data quality from the reference station while it lacks the function of data visualization.To provide a solution to it,the article successfully uses the self-programming to realize the visualization of the original observed data in satellite visibility,satellite sky map,Dilution of Precision(DOP)value,multipath effect and satellite elevation angles in MATrix LABoratory(MATLAB).Using TEQC and MATLAB,this article is to visualize the data quality of the reference site and obtain the data quality of the base station site to analyze the changes of the surrounding environment.According to the practical project examples,the conclusion shows that the data quality from the SHanghai Continuously Operating Reference Stations(SHCORS)site conforms to the site building standards and the method used in this article is hoped to be adopted as a reference for the data quality analysis in the implementation of base station site relocation.