Reevaluation of the Measurement Uncertainty of UTC Time Transfer

Z. Jiang, W. Lewandowski, G. Panfilo, and G. Petit

Abstract:	The uncertainty uA of clock comparisons as reported in the BIPM Circular T is defined as the statistical uncertainty evaluated by taking into account the level of phase noise in the raw data, the interpolation interval, and effects with typical duration between 5 days and 30 days. The first global evaluation of uA was performed in 2002. Since then time-transfer techniques have improved significantly. New techniques have been introduced at different periods and the methods used to estimate their uncertainty uA were not necessarily consistent. In this paper, we propose a revised definition of uA and recalculate its value for all 67 links used in UTC.
Published in:	Proceedings of the 43rd Annual Precise Time and Time Interval Systems and Applications Meeting November 14 - 17, 2011 Hyatt Regency Long Beach Long Beach, California
Pages:	133 - 140
Cite this article:	Jiang, Z., Lewandowski, W., Panfilo, G., Petit, G., "Reevaluation of the Measurement Uncertainty of UTC Time Transfer," Proceedings of the 43rd Annual Precise Time and Time Interval Systems and Applications Meeting, Long Beach, California, November 2011, pp. 133-140.
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