Details
| Original language | English |
|---|---|
| Title of host publication | 2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) |
| Number of pages | 4 |
| ISBN (electronic) | 978-1-6654-3935-0 |
| Publication status | Published - 2021 |
| Event | 2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) - Gainesville, FL, USA Duration: 7 Jul 2021 → 17 Jul 2021 |
Publication series
| Name | Proceedings of the IEEE International Frequency Control Symposium |
|---|---|
| ISSN (Print) | 1075-6787 |
| ISSN (electronic) | 2327-1949 |
Abstract
Frequency transfer (FT) based on Global Navigation Satellite System (GNSS) precise point positioning (PPP) enables global comparison of local time scales that are each connected to a GNSS receiver. We use our in-house PPP software to examine the current limits of this technique and extend the classical analysis approach to new GPS and Galileo signals. We also investigate the impact of receiver clock modeling (RCM). For this, we carried out a dedicated experiment at Germany's national metrology institute, the Physikalisch-Technische Bundesanstalt (PTB), where four geodetic receivers - operating in a controlled environment - were connected to one single GNSS antenna and the same UTC(PTB) signal. The link instability of two receivers of the same type is better as compared with the use of receivers of different types. Overall, Galileo signals lead to better FT performance than GPS signals. When using the latter, with modern L2C signals we obtain FT instabilities that are at least comparable to those based on legacy L2 P-code observations. The application of RCM especially improves the short-term link instability. Therefore, this should be studied more in-depth in the future since it can be a valuable approach in GNSS-based FT.
Keywords
- Allan deviation, GNSS, clock modeling, frequency transfer, precise point positioning
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Instrumentation
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS). 2021. (Proceedings of the IEEE International Frequency Control Symposium).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Recent and Future Activities at Leibniz University Hannover in GNSS Frequency Transfer
AU - Krawinkel, Thomas
AU - Schön, Steffen
AU - Bauch, Andreas
N1 - Funding Information: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project ID 434617780 – SFB 1464.
PY - 2021
Y1 - 2021
N2 - Frequency transfer (FT) based on Global Navigation Satellite System (GNSS) precise point positioning (PPP) enables global comparison of local time scales that are each connected to a GNSS receiver. We use our in-house PPP software to examine the current limits of this technique and extend the classical analysis approach to new GPS and Galileo signals. We also investigate the impact of receiver clock modeling (RCM). For this, we carried out a dedicated experiment at Germany's national metrology institute, the Physikalisch-Technische Bundesanstalt (PTB), where four geodetic receivers - operating in a controlled environment - were connected to one single GNSS antenna and the same UTC(PTB) signal. The link instability of two receivers of the same type is better as compared with the use of receivers of different types. Overall, Galileo signals lead to better FT performance than GPS signals. When using the latter, with modern L2C signals we obtain FT instabilities that are at least comparable to those based on legacy L2 P-code observations. The application of RCM especially improves the short-term link instability. Therefore, this should be studied more in-depth in the future since it can be a valuable approach in GNSS-based FT.
AB - Frequency transfer (FT) based on Global Navigation Satellite System (GNSS) precise point positioning (PPP) enables global comparison of local time scales that are each connected to a GNSS receiver. We use our in-house PPP software to examine the current limits of this technique and extend the classical analysis approach to new GPS and Galileo signals. We also investigate the impact of receiver clock modeling (RCM). For this, we carried out a dedicated experiment at Germany's national metrology institute, the Physikalisch-Technische Bundesanstalt (PTB), where four geodetic receivers - operating in a controlled environment - were connected to one single GNSS antenna and the same UTC(PTB) signal. The link instability of two receivers of the same type is better as compared with the use of receivers of different types. Overall, Galileo signals lead to better FT performance than GPS signals. When using the latter, with modern L2C signals we obtain FT instabilities that are at least comparable to those based on legacy L2 P-code observations. The application of RCM especially improves the short-term link instability. Therefore, this should be studied more in-depth in the future since it can be a valuable approach in GNSS-based FT.
KW - Allan deviation
KW - GNSS
KW - clock modeling
KW - frequency transfer
KW - precise point positioning
UR - http://www.scopus.com/inward/record.url?scp=85123045143&partnerID=8YFLogxK
U2 - 10.1109/EFTF/IFCS52194.2021.9604309
DO - 10.1109/EFTF/IFCS52194.2021.9604309
M3 - Conference contribution
SN - 978-1-6654-3936-7
T3 - Proceedings of the IEEE International Frequency Control Symposium
BT - 2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)
T2 - 2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)
Y2 - 7 July 2021 through 17 July 2021
ER -