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Usign sign patterns to distinguish feared clock events

Suess, Matthias and Ulrich, Grunert (2008) Usign sign patterns to distinguish feared clock events. 40th Annual Precise Time and Time Interval Meeting 2008, Reston, VA (USA).

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Abstract

The first and second difference of clock measurements is investigated to detect and identify clock events. A hypothesis test of the difference functions is described which is calibrated by given Allan deviations of the observed clock differences. The impact of four defined clock events, namely time step, frequency step, drift step and outlier on the first and second differences is calculated. The analysis outlines that the sign of these calculations generate a pattern of “1”,”0” and “-1” which are called event patterns. In order to identify the underlying event type, the identification method interprets the detection process again as a sequence of “1”, “0” and “-1” and maps the event patterns to the detection patterns. The identification and detection method are assessed by analyzing the time offset measurements between a commercial Rubidium frequency standard and an active Hydrogen maser. Both clocks are operated at the DLR timing laboratory.

Item URL in elib:https://elib.dlr.de/56644/
Document Type:Conference or Workshop Item (Speech)
Title:Usign sign patterns to distinguish feared clock events
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Suess, MatthiasUNSPECIFIEDUNSPECIFIED
Ulrich, GrunertUNSPECIFIEDUNSPECIFIED
Date:November 2008
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:detection, clock, events, time offset, rubidium
Event Title:40th Annual Precise Time and Time Interval Meeting 2008
Event Location:Reston, VA (USA)
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Süß, Matthias
Deposited On:20 Apr 2009
Last Modified:31 Jul 2019 19:23

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