A two-way time transfer experiment via ECS-1 using the MITREX modem

Kirchner, D.; Ressler, H.; Riedler, W.; Soring, A.

doi:10.1109/19.7466

Cited by 3 publications

(2 citation statements)

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“…We have currently no explanation why the pattern of the individual data is so different between sites, but it was found to be to some extent reproducible [16,17,18]. Only in the very first campaign (E1), SD values of 0.1 ns to 0.3 ns were achieved, but the number of samples was quite small (only two to six data points were averaged) [9]. Here with some probability environmental effects could come into play, and some considerations on that are given in Section 5.…”

Section: Results Obtained During the Campaignmentioning

confidence: 99%

“…Reference E1 1997 TUG, DTAG, PTB [9] T1 2002 USNO, PTB [11] T2 2003 USNO, PTB [13] E2 2003 IEN, PTB [16] E3 2004 PTB, VSL, OP, NPL [17] T3 2004 USNO, PTB [14] T4 2004 USNO, PTB [14] T5 2005 USNO, PTB [14] E4 2005 PTB, SP, VSL, NPL, OP, INRIM [18] T6 2006 USNO, PTB [15] E5 2006 TUG, PTB, METAS [19] T7 2007 USNO, PTB -T8 2007 USNO, PTB -…”

Section: No Year Participating Institutesmentioning

confidence: 99%

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Time transfer with nanosecond accuracy for the realization of International Atomic Time

et al. 2008

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Two-way satellite time and frequency transfer (TWSTFT) has become an important technical component in the process of the realization of International Atomic Time. To employ the full potential of the technique, especially for true time transfer, a dedicated calibration is necessary. This consists of the calibration either of the operational link at large, including every component involved, or of the involved ground stations' internal delays only. Both modes were successfully employed by circulating and operating a portable reference station between the sites involved. In this paper, we summarize the theoretical background for the different calibration modes applied and report examples of results from the 13 calibration campaigns performed up to now in Europe and between Europe and the United States. In all of these exercises, estimated uncertainties around 1 ns were achieved. Consecutive campaigns showed a very good reproducibility at the nanosecond level. Additionally, we address and briefly discuss sources that possibly limit the uncertainty for true time transfer employing TWSTFT.

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Section: Results Obtained During the Campaignmentioning

confidence: 99%