中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 国家授时中心
  3. 中国科学院国家授时中心
  4. 时间频率基准实验室
Research on Single-Frequency PPP-B2b Time Transfer

文献类型：期刊论文

作者He, Zaimin3,4; Li, Lan3,4; Zhang, Runzhi2; Hou, Juan1; Xiao, Gongwei1; Guang, Wei3,4; Zhang, Jihai2; He, Xiangyi3,4
刊名IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE
出版日期2023-09-01
卷号26期号:6页码:42-47
关键词Charge coupled devices Graphics Global navigation satellite system Fluctuations International Atomic Time Satellite broadcasting Laboratories
ISSN号1094-6969
DOI10.1109/MIM.2023.10217029
英文摘要Time transfer based on global navigation satellite system (GNSS) using precise point positioning (PPP) is a critical technique in universal time coordinated (UTC) calculation. PPP relies on precise satellite orbit and satellite clock offset products obtained through network solutions. Since August 2020, the Beidou global navigation satellite system (BDS-3) has provided GNSS users with the PPP product using PPP-B2b signal through three geostationary earth orbit (GEO) satellites instead of a network in the Asia-Pacific area. Network interruption will cause PPP reconvergence and terminate the time transfer, which hinders the application of PPP time transfer. The real-time PPP-B2b product broadcast by GEO satellites can be considered to solve the problem of interruption caused by network fluctuation in the field of real-time PPP. To promote the application of real-time PPP time comparison in UTC calculation and develop PPP-B2b application in time transfer, single-frequency (SF) PPP-B2b time transfer is investigated. Meanwhile, the treatment of ionospheric delay of SF PPP-B2b is crucial, and a GRAPHIC SF PPP-B2b model is proposed and validated in order to keep PPP-B2b network-independent. Data from two international atomic time (TAI) time-keeping laboratories and two international GNSS service (IGS) stations were used to analyze the accuracy in SF time comparison applications using the PPP-B2b product from common clock difference (CCD) and long-baseline time links. Results show that the SF PPP-B2b CCD sequences can be concentrated within 0.2 ns. The long-baseline time difference between SF time transfer using PPP-B2b product and dual-frequency (DF) time transfer using the final product fluctuated within 2 ns. In addition, the standard deviation (STD) values of PPP-B2b time comparison are mainly distributed at 0.5 ns. Meanwhile, only BDS and BDS + GPS can achieve similar SF PPP-B2b time transfer accuracy.
资助项目State Key Laboratory of Geodesy and Earth's Dynamics[SKLGED2022-3-3]
WOS研究方向Engineering ; Instruments & Instrumentation
语种英语
WOS记录号WOS:001049953800008
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
资助机构State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics ; State Key Laboratory of Geodesy and Earth's Dynamics
源URL[http://210.72.145.45/handle/361003/14219]  
专题国家授时中心_时间频率基准实验室
通讯作者He, Zaimin
作者单位1.Xian Univ Posts & Telecommun, Xian, Shaanxi, Peoples R China
2.Chinese Acad Sci, Natl Time Serv Ctr, Xian, Peoples R China
3.Xian Univ Posts & Telecommun, Sch Artificial Intelligence, Xian, Shaanxi, Peoples R China
4.Xian Univ Posts & Telecommun, Sch Commun & Informat Engn, Xian, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 He, Zaimin,Li, Lan,Zhang, Runzhi,et al. Research on Single-Frequency PPP-B2b Time Transfer[J]. IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE,2023,26(6):42-47.
APA He, Zaimin.,Li, Lan.,Zhang, Runzhi.,Hou, Juan.,Xiao, Gongwei.,...&He, Xiangyi.(2023).Research on Single-Frequency PPP-B2b Time Transfer.IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE,26(6),42-47.
MLA He, Zaimin,et al."Research on Single-Frequency PPP-B2b Time Transfer".IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE 26.6(2023):42-47.

入库方式： OAI收割

来源：国家授时中心

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。