| GNSS Timing Performance Assessment and Results Analysis | |
Zhu, Lin1,2,3; Zhang, Huijun1,2,3 ; Li, Xiaohui1,2,3; Zhu, Feng1,3; Liu, Yinhua1,2,3
| |
| 2022-04-01 | |
| 发表期刊 | SENSORS
 |
| 卷号 | 22期号:7页码:10 |
| 摘要 | Global Navigation Satellite System (GNSS) timing is a main service function. Each GNSS has its own time performance specification. However, a uniform timing performance assessment methodology and its outcomes do not exist. Firstly, the timing performance specifications of each GNSS are analyzed. Then, time transfer accuracy is considered as the key GNSS timing performance indicator. Secondly, an assessment method for the Coordinated Universal Time (UTC) published by the Bureau International des Poids et Mesures (BIPM) and UTC kept by the National Time Service Center of China (UTC(NTSC)) is proposed. Thirdly, the uncertainty budget of the assessment method is given. The timing performances of BDS, GPS, GLONASS, and Galileo are assessed and compared. The results show that the time transfer accuracy of BDS, GPS, GLONASS, and Galileo was 13.8 ns, 4.5 ns, 16.8 ns, and 4.2 ns, respectively, in 2021, meeting their performance requirements specified by GNSS (30 ns or 40 ns). Meanwhile, the assessment results of GPS and Galileo are much better than requirements, while the assessment results of BDS and GLONASS show fixed time offset and can still be improved further. If the local reference time of GNSS users can be connected with UTC, this assessment method can be used. |
| 关键词 | GNSS timing performance time transfer accuracy assessment |
| 资助者 | National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences ; National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences ; National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences ; National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences |
| DOI | 10.3390/s22072486 |
| 语种 | 英语 |
| 资助项目 | National Natural Science Funds of China[11903039] ; Western Yong Scholars of Chinese Academy of Sciences[XAB2021YN24] ; Western Yong Scholars of Chinese Academy of Sciences[XAB2021YN28] |
| 资助者 | National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences ; National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences ; National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences ; National Natural Science Funds of China ; National Natural Science Funds of China ; Western Yong Scholars of Chinese Academy of Sciences ; Western Yong Scholars of Chinese Academy of Sciences |
| WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
| WOS类目 | Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation |
| WOS记录号 | WOS:000780529500001 |
| 出版者 | MDPI |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/13835 |
| 专题 | 时间频率测量与控制研究室 |
| 通讯作者 | Zhu, Lin |
| 作者单位 | 1.Chinese Acad Sci, Natl Time Serv Ctr, East Shu Yuan Rd, Xian 710600, Peoples R China 2.Chinese Acad Sci, Key Lab Precis Nav & Timing Technol, Xian 710600, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Yu Quan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Lin,Zhang, Huijun,Li, Xiaohui,et al. GNSS Timing Performance Assessment and Results Analysis[J]. SENSORS,2022,22(7):10. |
| APA | Zhu, Lin,Zhang, Huijun,Li, Xiaohui,Zhu, Feng,&Liu, Yinhua.(2022).GNSS Timing Performance Assessment and Results Analysis.SENSORS,22(7),10. |
| MLA | Zhu, Lin,et al."GNSS Timing Performance Assessment and Results Analysis".SENSORS 22.7(2022):10. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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