Dai-Hyuk Yu et al 2007 Metrologia 44 91 doi:10.1088/0026-1394/44/1/014
Dai-Hyuk Yu1, Marc Weiss2 and Thomas E Parker2
Show affiliationsA theory is presented for estimating the uncertainty of a frequency comparison in the presence of distributed dead time or measurement interval offset using an extension of the method of Douglas and Boulanger (1997 Proc. 11th European Frequency and Time Forum pp 345–9). The uncertainties due to the distributed dead time and lumped dead time with mixed power law noise type are calculated and compared. It is shown that the use of distributed measurements of frequencies can greatly reduce the uncertainty as compared with that of lumped measurements. When a measurement interval offset is present, two different methods are possible for the frequency estimation and uncertainty evaluation. We compare and discuss the different results for the different methods.
Issue 1 (February 2007)
Received 11 May 2006
Published 2 February 2007
Dai-Hyuk Yu et al 2007 Metrologia 44 91
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