KMS National Astronomical Observatories, CAS
| 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 Publication | REMOTE SENSING
 |
| Volume | 13Issue:5Pages:18 |
| Abstract | With 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. |
| Keyword | GNSS hourly ultra-rapid products iGMAS orbit clock IGS |
| Funding Organization | 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 ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| DOI | 10.3390/rs13051022 |
| Language | 英语 |
| Funding Project | ZFS[Y9E0151M26] ; National Natural Science Foundation of China[12073063] ; National Natural Science Foundation of China[11403083] |
| Funding Organization | 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 ; ZFS ; ZFS ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Research Area | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS Subject | Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS ID | WOS:000628492300001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/78883 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Song, Shuli |
| Affiliation | Chinese 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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