Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS
The International Bureau of Weights and Measures (BIPM) currently mainly uses GPS time transfer for the calculation of UTC. In order to enhance the reliability of the time links, the common-view (CV) and Precise Point Positioning (PPP) time transfer performance of the dual-frequency ionosphere-free...
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2025-05-01
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| author | Meng Wang Chunlei Pang Dong Guo Shize Wang Yang Zhang Jinglong Gao Xiubin Zhao |
| author_facet | Meng Wang Chunlei Pang Dong Guo Shize Wang Yang Zhang Jinglong Gao Xiubin Zhao |
| author_sort | Meng Wang |
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| description | The International Bureau of Weights and Measures (BIPM) currently mainly uses GPS time transfer for the calculation of UTC. In order to enhance the reliability of the time links, the common-view (CV) and Precise Point Positioning (PPP) time transfer performance of the dual-frequency ionosphere-free combination for BRUX-SPT0, NIST-USN7, and BRUX-USN7 links was evaluated, including GPS (P1 & P2), Galileo (E1 & E5a), and BDS-3 (B1I & B3I, B1I & B2a, B1C & B3I, B1C & B2a). The experimental results show that the precision and average frequency stability (AFT) of BDS-3 B1C & B2a CV and PPP links are better than those of BDS-3 B1I & B3I, B1I & B2a, and B1C & B3I links. Compared to the GPS P1 & P2 and BDS-3 B1C & B2a CV links, the Galileo E1 & E5a links have the highest precision. In addition, the precision of GPS PPP links outperforms the BDS-3 and Galileo links. The short-term FT (frequency stability) of GPS PPP links is better than that of BDS-3 B1C & B2a PPP links. When the average time is greater than 4.3 h, however, the BDS-3 B1C & B2a PPP link’s AFT is significantly improved compared with the Galileo PPP links. |
| format | Article |
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| institution | OA Journals |
| issn | 2072-4292 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Remote Sensing |
| spelling | doaj-art-832896bdc59d42c6ab8b98f1f90451b02025-08-20T01:56:45ZengMDPI AGRemote Sensing2072-42922025-05-011710172510.3390/rs17101725Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPSMeng Wang0Chunlei Pang1Dong Guo2Shize Wang3Yang Zhang4Jinglong Gao5Xiubin Zhao6Information and Navigation School, Air Force Engineering University, Xi’an 710043, ChinaInformation and Navigation School, Air Force Engineering University, Xi’an 710043, ChinaNational Time Service Center, Chinese Academy of Sciences, Xi’an 710600, ChinaNational Institute of Metrology, Beijing 100029, ChinaInformation and Navigation School, Air Force Engineering University, Xi’an 710043, ChinaInformation and Navigation School, Air Force Engineering University, Xi’an 710043, ChinaInformation and Navigation School, Air Force Engineering University, Xi’an 710043, ChinaThe International Bureau of Weights and Measures (BIPM) currently mainly uses GPS time transfer for the calculation of UTC. In order to enhance the reliability of the time links, the common-view (CV) and Precise Point Positioning (PPP) time transfer performance of the dual-frequency ionosphere-free combination for BRUX-SPT0, NIST-USN7, and BRUX-USN7 links was evaluated, including GPS (P1 & P2), Galileo (E1 & E5a), and BDS-3 (B1I & B3I, B1I & B2a, B1C & B3I, B1C & B2a). The experimental results show that the precision and average frequency stability (AFT) of BDS-3 B1C & B2a CV and PPP links are better than those of BDS-3 B1I & B3I, B1I & B2a, and B1C & B3I links. Compared to the GPS P1 & P2 and BDS-3 B1C & B2a CV links, the Galileo E1 & E5a links have the highest precision. In addition, the precision of GPS PPP links outperforms the BDS-3 and Galileo links. The short-term FT (frequency stability) of GPS PPP links is better than that of BDS-3 B1C & B2a PPP links. When the average time is greater than 4.3 h, however, the BDS-3 B1C & B2a PPP link’s AFT is significantly improved compared with the Galileo PPP links.https://www.mdpi.com/2072-4292/17/10/1725time transfercommon viewPrecise Point Positioning (PPP)GNSS |
| spellingShingle | Meng Wang Chunlei Pang Dong Guo Shize Wang Yang Zhang Jinglong Gao Xiubin Zhao Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS Remote Sensing time transfer common view Precise Point Positioning (PPP) GNSS |
| title | Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS |
| title_full | Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS |
| title_fullStr | Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS |
| title_full_unstemmed | Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS |
| title_short | Analysis on GNSS Common View and Precise Point Positioning Time Transfer: BDS-3/Galileo/GPS |
| title_sort | analysis on gnss common view and precise point positioning time transfer bds 3 galileo gps |
| topic | time transfer common view Precise Point Positioning (PPP) GNSS |
| url | https://www.mdpi.com/2072-4292/17/10/1725 |
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