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Network time protocol from a distributed timescale traceable to UTC
STUPI, US.
Netnod, Sweden.
Netnod, Sweden.
Netnod, Sweden.
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2016 (Engelska)Ingår i: Proceedings of the 47th Annual Precise Time and Time Interval Systems and Applications Meeting, 2016, s. 187-192Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

A nationwide robust distributed time scale and network time and frequency distribution infrastructure is implemented in Sweden. The system has been under evaluation since May 2015 and was started as an active service in December 2015. The six local time scales are traceable to UTC within ± 250 ns and NTP time is distributed using customized high performance servers. All output is externally monitored for independent quality and performance assessment.

Ort, förlag, år, upplaga, sidor
2016. s. 187-192
Nyckelord [en]
Active service, Distributed time, Local time, Network time protocol, Performance assessment, Time and frequencies, Time-scales, Platinum alloys
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-27662DOI: 10.33012/2016.13163Scopus ID: 2-s2.0-84964992785OAI: oai:DiVA.org:ri-27662DiVA, id: diva2:1059325
Konferens
47th Annual Precise Time and Time Interval Systems and Applications Meeting (PTTI 2016), January 25-28, 2016, Monterey, US
Anmärkning

References: Dahlman, E., Parkvall, S., Skold, J., (2013) 4G: LTE/LTE-Advanced for Mobile Broadband, , Academic press; Ebenhag, S.C., Jaldehag, K., Rieck, C., Jarlemark, P., Hedekvist, P.O., Löthberg, P., Fordell, T., Merimaa, M., Time transfer between UTC(SP) and UTC(MIKE) using frame detection in fiber-optical communication networks (2011) Precise Time and Time Interval (PTTI) Systems and Applications Meeting, pp. 431-441; Hanssen, J., Ekstrom, C., Ebenhag, S.C., Jaldehag, K., Evaluation of time transfer units for time and frequency transfer in optical fibers utilizing a passive technique based on SONET/SDH (2012) Precise Time and Time Interval (PTTI) Systems and Applications Meeting, pp. 371-376; Koppang, P., Leland, R., (1995) Steering of Frequency Standards by the se of Linear Quadratic Gaussian Control Theory, , Naval observatory Washington

Tillgänglig från: 2016-12-22 Skapad: 2016-12-21 Senast uppdaterad: 2019-06-25Bibliografiskt granskad

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Totalt: 108 träffar
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  • nn-NB
  • sv-SE
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  • html
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