城市CORS系统数据质量检核与评估分析

针对传统GPS数据分析软件可视化效果不高的情况,本文采用Matlab对TEQC处理的常州武进CZWJ站单天数据质量进行检测,重新绘制图像,提高可视性便于评估分析,利用Python结合TEQC、QC2SKY等软件对常州市CORS系统5个CORS基准站5个季度观测数据分别从数据完整率、头文件信息和数据质量3项指标进行了评估分析,结果表明:常州5个站的数据质量均非常稳定,受多路径效应影响较小,各基准站空间分布合理,能较好地覆盖常州市各行政区划,可作为区域地表变形的监测网。

Data Duality Checking and Evaluation Analysis of Urban CORS System

According to the traditional GPS data analysis software visualization is efficient, use Matlab to deal with CZWJ station single day data quality detection results from TEQC to redraw the image to improve visibility to facilitate assessment and analysis. Use Mat-lab, Python combined with TEQC, QC2SKY to evaluate and analyze data from CZCORS. Five quarters observe data of five CZCORS reference stations form data integrity rate, header information, data quality were pretreated, and the results show that the quality of CZCORS data is very stable. The results show that the Changzhou five site data quality are very stable, less affected by the multipath effect, and the reference station space distribution is reasonable. CZCORS as a regional surface deformation monitoring network can ef-fectively cover the Changzhou City administrative divisions.