Using SpaceWire time codes for spacecraft time synchronization: SpaceWire missions and applications, short paper

Using SpaceWire time codes for spacecraft time synchronization: SpaceWire missions and applications, short paper

This paper describes how SpaceWire Time Codes can be used for synchronizing time within various subsystems of a spacecraft as well as, maintaining a common time reference needed for coordinating operations within a spacecraft. The algorithms to account for inaccuracies in the time distribution metho...

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Bibliographic Details
Published in:2016 International SpaceWire Conference (SpaceWire) pp. 1 - 5
Main Authors: Clancy, Susan C., Shihabi, Mazen M., Angkasa, Krisjani S.
Format: Conference Proceeding
Language:English
Published: University of Dundee 01-10-2016
Subjects:
CCSDS Unsegmented Time (CUC)
Clocks
Hardware
Jitter
Protocols
Radiation detectors
Space Telecommunications Radio System (STRS)
Space vehicles
SpaceWire
SpaceWire Time Codes
SpaceWire Time Distribution Protocol
Synchronization
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Description
Summary:This paper describes how SpaceWire Time Codes can be used for synchronizing time within various subsystems of a spacecraft as well as, maintaining a common time reference needed for coordinating operations within a spacecraft. The algorithms to account for inaccuracies in the time distribution method were based on the NASA-4009 Space Telecommunication Radio System (STRS) standard [1], which defined an interface for synchronizing clocks running at different tick rates and tick resolutions.
DOI:10.1109/SpaceWire.2016.7771596