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Robust Time Synchronization Methods for Future APNT

Suess, Matthias and Belabbas, Boubequer and Furthner, Johann and Meurer, Michael (2012) Robust Time Synchronization Methods for Future APNT. ION 2012, 17.- 21. September, Nashville,TN, U.S..

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Abstract

The paper deals with concepts and methods to provide a robust time synchronization algorithm for a network of ground stations, which provide an APNT (Alternative Positioning, Navigation and Timing) service. Besides the concept to synchronize the stations to an external GNSS time scale such as GPS, Galileo or EGNOS or with the use of a geostationary satellite, the concept to generate an internal timescale by a composite clock algorithm is investigated. Using the calculated time offsets relative to the composite clock offset, the ground station signals are synchronized, to mitigate the clock related error of the pseudo range measurements. As discussed within the paper, the application of a composite clock algorithm requires a measurement network, whose network graph is connected. The robustness of a ring network is studied by simulation of clock feared events of time and frequency offset steps and the performances are evaluated in terms of Required Navigation Performance (RNP).

Item URL in elib:https://elib.dlr.de/78013/
Document Type:Conference or Workshop Item (Speech)
Title:Robust Time Synchronization Methods for Future APNT
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Suess, MatthiasUNSPECIFIEDUNSPECIFIED
Belabbas, BoubequerUNSPECIFIEDUNSPECIFIED
Furthner, JohannUNSPECIFIEDUNSPECIFIED
Meurer, MichaelUNSPECIFIEDUNSPECIFIED
Date:2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:APNT, Composite Clock, GNSS, RNP, integrity, LDACS, synchronisation, time, timing, offset
Event Title:ION 2012
Event Location:Nashville,TN, U.S.
Event Type:international Conference
Event Dates:17.- 21. September
Organizer:Institute of Navigation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Süß, Matthias
Deposited On:08 Nov 2012 09:35
Last Modified:31 Jan 2013 08:23

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