A zenith tropospheric delay correction model based on the regional CORS network

查看全文 作　　者：Huang [1,2]Liangke;Liu [1,2]Lilong;Yao [1,2]Chaolong

机构地区：[1]College of Geomatic Engineering and Geoinformatics,Guilin University of Technology;[2]Guangxi Key Laboratory of Spatial Information and Geomatics

出　　处：《Geodesy and Geodynamics》索引2012年第3卷第4期,共10页

基　　金：supported by the National Natural Foundation of China(41064001;41071294);the Natural Science Foundation of Guangxi(2012GXNSFAA053183);Guangxi Key Laboratory of Spatial Information and Geomatics(1103108-06) 摘　　要：Tropospheric delay is a primary error source in earth observations and a variety of radio navigation technologies. In this paper, the relationship between zenith tropospheric delays and the elevation and longitude of stations is analyzed using the zenith tropospheric delay final products of International GNSS Service (IGS) stations from 2011. Two new models are proposed for estimating zenith tropospheric delays from regional CORS data without meteorological data. The proposed models are compared with the direct interpolation method and the remove-restore method using data from Guangxi CORS. The results show that the new models significantly improve the calculated precision. Finally, the root mean square (RMS) errors of the new models were used to estimate the surface precipitable water vapor (PWV) value at CORS station, which was determined to be less than 2 mm. 关键词：对流层延迟 CORS 修正模型网络基础误差来源导航技术地球观测

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A zenith tropospheric delay correction model based on the regional CORS network

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