中国大陆构造环境监测网络基准站多路径效应影响因素浅析

Analysis on the factors affecting the multipath effect of the CMONOC

在数据完整率达到95%的基础上,为进一步确保中国大陆构造环境监测网络GNSS基准站观测数据质量,选取2010—2020年全国基准站观测数据,采用TEQC软件进行质量检验,分类整理其中多路径效应计算结果呈典型特征的台站,结合观测环境状态,对多路径效应存在的区域性特征进行分析,发现除接收机天线周围发生遮挡外,硬件更换、台站周围地势差等因素,均对多路径效应产生不同程度的影响,可为建站选址和观测环境监测工作提供参考。

On the basis of the overall data integrity rate reaching 95%,the quality of the observation data at reference stations from 2010 to 2020 have been tested with TEQC to further ensure the quality of the observation data of the CMONOC.Classify and sort out the stations where the calculation results of multipath effects show typical characteristics.Combined with the analysis of the observation environment,it is found that in addition to occlusion,hardware replacement and terrain differences around the station all have varying degrees of impact on the multipath effect.This study can provide references for site selection and monitoring of the observation environment.