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Time transfer with nanosecond accuracy using ethernet

Carsten Rieck (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium) ; Kenneth Jaldehag
Proceedings of the 46th Annual Precise Time and Time Interval Systems and Applications Meeting, PTTI (2333-2085). Vol. 2014-January (2014), p. 74-78.
[Konferensbidrag, refereegranskat]

Hardware aided time stamping of Ethernet frames is used to implement a two way time transfer. The method is capable to either operate actively by initiating or relaying frames, or passively by utilization the traffic on, preferably, optical links. Time stability of unfiltered measurements taken on local links is about 3.5 ns @ 1s TDEV, reaching below 1 ns for time intervals of about 100s. The presented method is specific to a family of commercial traffic analyzers, but can be generalized for any similar capable hardware.



Denna post skapades 2015-11-25. Senast ändrad 2016-01-07.
CPL Pubid: 226335

 

Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium (2010-2017)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur