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High-precision VTEC derivation with GEONET

文献类型：期刊论文

作者Li, Qi1,2; Ma, Guanyi1,2; Maruyama, Takashi1,3; Li, Jinghua1; Wan, Qingtao1; Wang, Xiaolan1; Fan, Jiangtao1; Zhang, Jie1
刊名EARTH PLANETS AND SPACE
出版日期2020-02-05
卷号72期号:1页码:11
关键词PSGM TEC Ionosphere GEONET GPS IRI Mid-latitude
ISSN号1880-5981
DOI10.1186/s40623-020-1137-0
英文摘要This paper proposes a new technique, namely Phase bias-based Small Grid Model (PSGM), to derive absolute ionospheric vertical total electron content (VTEC) with observations of Global Navigation Satellite System Earth Observation Network of Japan (GEONET). The proposed technique deals with the phase observations alone without handling the pseudoranges, which reduces the noise in VTEC estimation. A new parameter, the arc bias (B-arc), is introduced to combine the phase ambiguities and differential phase biases. To solve B-arc, equations are constructed under the assumption that the VTEC is identical in the same 0.1 degrees x 0.1 degrees grid. The performance of PSGM is evaluated with the observations in solar maximum year 2014. The root mean square error (RMSE) of PSGM is 0.40 TECU in average, the maximum RMSE is 0.73 TECU and the minimum RMSE is 0.26 TECU. The fitting accuracy of the VTEC results is improved compared with most of the existing methods.
WOS关键词TOTAL ELECTRON-CONTENT ; GLOBAL POSITIONING SYSTEM ; INSTRUMENTAL BIASES ; GPS SATELLITE ; DCB ESTIMATION ; NETWORK ; VARIABILITY ; ACCURACY ; TEC
资助项目National Natural Science Foundation of China[11473045] ; National Natural Science Foundation of China[11873064] ; National Natural Science Foundation of China[11503040] ; National Key Research Program of China "Collaborative Precision Positioning Project"[2016YFB0501903] ; National Key Research Program of China "Collaborative Precision Positioning Project"[2016YFB0501904]
WOS研究方向Geology
语种英语
WOS记录号WOS:000521227800001
出版者SPRINGEROPEN
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project"
源URL[http://ir.bao.ac.cn/handle/114a11/55642]  
专题中国科学院国家天文台
通讯作者Li, Qi
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Natl Inst Informat & Commun Technol, Koganei, Tokyo, Japan
推荐引用方式
GB/T 7714		 Li, Qi,Ma, Guanyi,Maruyama, Takashi,et al. High-precision VTEC derivation with GEONET[J]. EARTH PLANETS AND SPACE,2020,72(1):11.
APA Li, Qi.,Ma, Guanyi.,Maruyama, Takashi.,Li, Jinghua.,Wan, Qingtao.,...&Zhang, Jie.(2020).High-precision VTEC derivation with GEONET.EARTH PLANETS AND SPACE,72(1),11.
MLA Li, Qi,et al."High-precision VTEC derivation with GEONET".EARTH PLANETS AND SPACE 72.1(2020):11.

入库方式： OAI收割

来源：国家天文台

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