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Analysis of the Long-term Stability of a Homogenous Cesium Standard Ensemble for Future System Time Generation

Blümel, Ludwig und Schmidt, Tobias und Trainotti, Christian und Furthner, Johann (2020) Analysis of the Long-term Stability of a Homogenous Cesium Standard Ensemble for Future System Time Generation. In: 51st Annual Precise Time and Time Interval Systems and Applications Meeting, PTTI 2020, 332 -339. Institute of Navigation. Precise Time and Time Interval Systems and Applications Meeting, 2020-01-21 - 2020-01-24, San Diego, CA, USA. doi: 10.33012/2020.17308. ISBN 0 936406 25 9. ISSN 2333-2085.

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Offizielle URL: https://www.ion.org/publications/abstract.cfm?articleID=17308

Kurzfassung

Global Navigation Satellite Systems (GNSSs) are indispensable for numerous daily life applications. They provide essential services for both civil and military uses. Other than enabling global navigation, GNSSs also allow the distribution of a stable time scale used in various sectors such as aviation, ground and maritime traffic, surveying, synchronization of power grids and stock trading activities. Thus, one key element of such systems is the generation of a stable and robust system time, which can be referenced to a global time scale, i.e. Coordinated Universal Time (UTC). There are several different approaches to ensure an appropriate system time for operational systems, like Global Positioning System (GPS) as an example for ensemble system time or Galileo for a master clock approach. In this paper we will present our latest results on composite clock realization with a set of cesium clocks. One of these clocks is used as the UTC realization by DLR. For our composite clock solution, we used a Kalman filter to predict the clock states, integrated differential clock measurements and produced an Implicit Ensemble Mean (IEM). A second Kalman filter was used to calculate the steering commands necessary to align a clock to the IEM of the ensemble. A regulator was used to implement the required steering. Simulation, long term measurements of an ensembles of cesium clocks and the realization of the IEM have been performed over a period larger than 105 s. This demonstration can be seen as the next step of DLR's contribution to UTC with a physical realization of a robust clock ensemble.

elib-URL des Eintrags:https://elib.dlr.de/134144/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Analysis of the Long-term Stability of a Homogenous Cesium Standard Ensemble for Future System Time Generation
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Blümel, LudwigLudwig.Bluemel (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schmidt, TobiasTobias.Schmidt (at) dlr.dehttps://orcid.org/0009-0000-7352-142XNICHT SPEZIFIZIERT
Trainotti, ChristianChristian.Trainotti (at) dlr.dehttps://orcid.org/0000-0001-5176-6100NICHT SPEZIFIZIERT
Furthner, JohannJohann.Furthner (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Februar 2020
Erschienen in:51st Annual Precise Time and Time Interval Systems and Applications Meeting, PTTI 2020
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.33012/2020.17308
Seitenbereich:332 -339
Verlag:Institute of Navigation
ISSN:2333-2085
ISBN:0 936406 25 9
Status:veröffentlicht
Stichwörter:cesium clock ensemble
Veranstaltungstitel:Precise Time and Time Interval Systems and Applications Meeting
Veranstaltungsort:San Diego, CA, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:21 Januar 2020
Veranstaltungsende:24 Januar 2020
Veranstalter :Institute of Navigation
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Kommunikation und Navigation
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R KN - Kommunikation und Navigation
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben GNSS2/Neue Dienste und Produkte (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Navigation
Hinterlegt von: Blümel, Ludwig
Hinterlegt am:07 Apr 2020 15:30
Letzte Änderung:24 Apr 2024 20:37

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