| Zugriffsnummer | 12650 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Comparison of atomic frequency standards at NIST and PTB using carrier-phase GPS |
| Autor(in); Institution |
Nelson, Lisa; National Institute of Standards and Technology, Boulder, Colo., USA
Levine, Judah; National Institute of Standards and Technology, Boulder, Colo., USA
Parker, Thomas; National Institute of Standards and Technology, Boulder, Colo., USA
Larson, Kristine; Univ.of Colorado, Boulder, Colo., USA
Hetzel, Peter; 4.33, Zeit- und Frequenzübertragung, PTB-Braunschweig
Becker, Jürgen; 4.33, Zeit- und Frequenzübertragung, PTB-Braunschweig
|
| Quelle/Jahr | 31st Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting:(2000), 449 - 459 |
| Herausgeber(in) |
Breakiron, Lee A.
|
| URL | |
| Verlag | Washington, DC: U.S. Naval Observatory |
| Konferenzangaben | 31st Precise Time and Time Interval (PTTI) Systems and Applications Meeting, Dana Point, Calif., 07-09, December, 1999, USA |
| Freie Schlagworte | GPS Carrier Phase Receiver ; Time Transfer ; Frequency Comparisons |
| Zusammenfassung | We have constructed a link between Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig, Germany and the National Institute of Standards and Technology (NIST) in Boulder, Colorado using carrier-phase Global Positioning System (GPS) receivers. The link will provide a direct measurement of the frequency difference between UTC(PTB) and UTC(NIST), and can also be used to provide a direct comparison between the primary frequency standards at the two laboratories. Based on our previous work with this method, we expect to be able to realize the frequency comparisons with an uncertainty of about 2 × 10-15 using one day of averaging. This uncertainty is smaller than the combined uncertainties of the primary frequency standards in both laboratories, and it will therefore support a near-real-time comparison of these primary frequency standards without degrading their capabilities with the noise of the transfer system. |
Zitierung
Nelson, L., Levine, J., Parker, T., Larson, K., Hetzel, P., & Becker, J. (2000). Comparison of atomic frequency standards at NIST and PTB using carrier-phase GPS. 31st Precise Time and Time Interval (PTTI) Systems and Applications Meeting, Dana Point, Calif., 07-09, December, 1999, USA.