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GNSS Timing Performance Assessment and Results Analysis

文献类型：期刊论文

作者Zhu, Lin1,2,3; Zhang, Huijun1,2,3; Li, Xiaohui1,2,3; Zhu, Feng1,3; Liu, Yinhua1,2,3
刊名SENSORS
出版日期2022-04-01
卷号22期号:7页码:10
关键词GNSS timing performance time transfer accuracy assessment
DOI10.3390/s22072486
英文摘要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.
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]
WOS研究方向Chemistry ; Engineering ; Instruments & Instrumentation
语种英语
WOS记录号WOS:000780529500001
出版者MDPI
资助机构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
源URL[http://210.72.145.45/handle/361003/13835]  
专题国家授时中心_时间频率测量与控制研究室
通讯作者Zhu, Lin
作者单位1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Yu Quan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Key Lab Precis Nav & Timing Technol, Xian 710600, Peoples R China
3.Chinese Acad Sci, Natl Time Serv Ctr, East Shu Yuan Rd, Xian 710600, 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.

入库方式： OAI收割

来源：国家授时中心

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