Research on Quad-Frequency PPP-B2b Time Transfer
文献类型：期刊论文
| 作者 | Zhang, Runzhi6; Li, Lan4,5; Li, Xueqing3; Ma, Hongjiao2 ; Xiao, Gongwei1; Zhang, Jihai2
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| 刊名 | IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE
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| 出版日期 | 2024-02-01 |
| 卷号 | 27期号:1页码:57-62 |
| 关键词 | Charge coupled devices Time-frequency analysis Satellites Satellite broadcasting Real-time systems Mathematical models Convergence |
| ISSN号 | 1094-6969 |
| DOI | 10.1109/MIM.2024.10423730 |
| 英文摘要 | Carrier phase time transfer which is a crucial technique in universal time coordinated (UTC) calculation is implemented through precise point positioning (PPP). Since August 2020, the Beidou global navigation satellite system (BDS-3) has provided users with the precise satellite product which is an essential external input in the PPP implementation, named the PPP-B2b product, through three geostationary earth orbit (GEO) satellites instead of a network in the Asia-Pacific area. The PPP-B2b product can be considered to solve the instability problem caused by network interruption in traditional PPP time transfer. Currently, the fact that the PPP-B2b time transfer using dual-frequency (DF) ionosphere-free combination can achieve sub-nanosecond accuracy has been proven. Considering the BDS-3 can provide users with a wide range of frequency signals for PPP; meanwhile, the multi-frequency PPP will improve the accuracy of time transfer and accelerate the convergence. This improvement can be attributed to an increase in the number of observation equations due to the utilization of multiple frequencies. To promote the application of real-time PPP-B2b time comparison in UTC calculation, a quad-frequency (QF) PPP-B2b time transfer model is proposed and investigated. Compared to DF PPP-B2b time transfer, the accuracy of the QF time transfer model was verified from long-baseline time links and zero-baseline common clock difference (CCD). Results showed that the QF PPP-B2b time transfer had smoother CCD results and fluctuated within 0.1 ns, compared to the DF PPP-B2b model. Taking the PPP time comparison using the GBM product as a reference, the results for all long-baseline links show that the residuals of the QF PPP-B2b time comparison truly fluctuate within 1 ns. |
| 资助项目 | State Key Laboratory of Geodesy and Earth Dynamics[SKLGED2022-3-3] |
| WOS研究方向 | Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:001167953700003 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 资助机构 | State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics ; State Key Laboratory of Geodesy and Earth Dynamics |
| 源URL | [http://210.72.145.45/handle/361003/14736]  |
| 专题 | 国家授时中心_导航与通信研究室 |
| 通讯作者 | Zhang, Runzhi |
| 作者单位 | 1.Xian Univ Posts & Telecommun, Xian, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Xian, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian, Peoples R China 4.Xian Univ Posts & Telecommun, Sch Artificial Intelligence, Xian, Peoples R China 5.Xian Univ Posts & Telecommun, Sch Commun & Informat Engn, Xian, Peoples R China 6.Chinese Acad Sci, Natl Time Serv Ctr NTSC, Key Lab Precis Nav & Timing Technol, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Runzhi,Li, Lan,Li, Xueqing,et al. Research on Quad-Frequency PPP-B2b Time Transfer[J]. IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE,2024,27(1):57-62. |
| APA | Zhang, Runzhi,Li, Lan,Li, Xueqing,Ma, Hongjiao,Xiao, Gongwei,&Zhang, Jihai.(2024).Research on Quad-Frequency PPP-B2b Time Transfer.IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE,27(1),57-62. |
| MLA | Zhang, Runzhi,et al."Research on Quad-Frequency PPP-B2b Time Transfer".IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE 27.1(2024):57-62. |
入库方式： OAI收割
来源：国家授时中心
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