Research on Single-Frequency PPP-B2b Time Transfer

doi:10.1109/MIM.2023.10217029

NTSC-IR > 时间频率基准实验室

	Research on Single-Frequency PPP-B2b Time Transfer
	He, Zaimin 1,2; Li, Lan 1,2; Zhang, Runzhi 3; Hou, Juan 4; Xiao, Gongwei 4; Guang, Wei 1,2; Zhang, Jihai 3; He, Xiangyi 1,2
	2023-09-01
发表期刊	IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE
ISSN	1094-6969
卷号	26 期号:6 页码:42-47
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.
关键词	Charge coupled devices Graphics Global navigation satellite system Fluctuations International Atomic Time Satellite broadcasting Laboratories
资助者	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
DOI	10.1109/MIM.2023.10217029
语种	英语
资助项目	State Key Laboratory of Geodesy and Earth's Dynamics[SKLGED2022-3-3]
资助者	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
WOS研究方向	Engineering ; Instruments & Instrumentation
WOS类目	Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:001049953800008
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/14219
专题	时间频率基准实验室
通讯作者	He, Zaimin
作者单位	1.Xian Univ Posts & Telecommun, Sch Commun & Informat Engn, Xian, Shaanxi, Peoples R China 2.Xian Univ Posts & Telecommun, Sch Artificial Intelligence, Xian, Shaanxi, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian, Peoples R China 4.Xian Univ Posts & Telecommun, 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.