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Accuracy Analysis of GNSS Hourly Ultra-Rapid Orbit and Clock Products from SHAO AC of iGMAS
Chen, Qinming; Song, Shuli; Zhou, Weili
2021-03-01
Source PublicationREMOTE SENSING
Volume13Issue:5Pages:18
AbstractWith the development of the global navigation satellite system(GNSS), the hourly ultra-rapid products of GNSS are attracting more attention due to their low latency and high accuracy. A new strategy and method was applied by the Shanghai Astronomical Observatory (SHAO) Analysis Center (AC) of the international GNSS Monitoring and Assessment Service (iGMAS) for generating 6-hourly and 1-hourly GNSS products, which mainly include the American Global Positioning System (GPS), the Russian Global'naya Navigatsionnaya Sputnikova Sistema (GLONASS), the European Union's Galileo, and the Chinese BeiDou navigation satellite system (BDS). The 6-hourly and 1-hourly GNSS orbit and clock ultra-rapid products included a 24-h observation session which is determined by 24-h observation data from global tracking stations, and a 24-h prediction session which is predicted from the observation session. The accuracy of the 1-hourly orbit product improved about 1%, 31%, 13%, 11%, 23%, and 9% for the observation session and 18%, 43%, 45%, 34%, 53%, and 15% for the prediction session of GPS, GLONASS, Galileo, BDS Medium Earth Orbit (MEO), Inclined Geosynchronous Orbit (IGSO), and GEO orbit, when compared with reference products with high accuracy from the International GNSS service (IGS).The precision of the 1-hourly clock products can also be seen better than the 6-hourly clock products. The accuracy and precision of the 6-hourly and 1-hourly orbit and clock verify the availability and reliability of the hourly ultra-rapid products, which can be used for real-time or near-real-time applications, and show encouraging prospects.
KeywordGNSS hourly ultra-rapid products iGMAS orbit clock IGS
Funding OrganizationZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.3390/rs13051022
Language英语
Funding ProjectZFS[Y9E0151M26] ; National Natural Science Foundation of China[12073063] ; National Natural Science Foundation of China[11403083]
Funding OrganizationZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000628492300001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78879
Collection中国科学院国家天文台
Corresponding AuthorSong, Shuli
AffiliationChinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Chen, Qinming,Song, Shuli,Zhou, Weili. Accuracy Analysis of GNSS Hourly Ultra-Rapid Orbit and Clock Products from SHAO AC of iGMAS[J]. REMOTE SENSING,2021,13(5):18.
APA Chen, Qinming,Song, Shuli,&Zhou, Weili.(2021).Accuracy Analysis of GNSS Hourly Ultra-Rapid Orbit and Clock Products from SHAO AC of iGMAS.REMOTE SENSING,13(5),18.
MLA Chen, Qinming,et al."Accuracy Analysis of GNSS Hourly Ultra-Rapid Orbit and Clock Products from SHAO AC of iGMAS".REMOTE SENSING 13.5(2021):18.
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