Simplified three-cornered-hat technique for frequency stability measurements
Date
2014
Authors
Gunn, L.
Catlow, P.
Al-Ashwal, W.
Hartnett, J.
Allison, A.
Abbott, D.
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Journal article
Citation
IEEE Transactions on Instrumentation and Measurement, 2014; 63(4):889-895
Statement of Responsibility
Lachlan J. Gunn, Peter G. Catlow, Waddah A. Al-Ashwal, John G. Hartnett, Andrew Allison, and Derek Abbott.
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Abstract
We propose a novel technique allowing the use of the three-cornered-hat method with two devices under test (DUTs) and a time-tagging system that employs a common reference oscillator. The precision of a time-tagging system is reduced by fluctuations in the timebase, which are canceled when the relative phase between the two DUTs is measured. However, the raw time-tags in this system provide a phase comparison between the DUTs and the system timebase, allowing the use of the three-cornered hat with some dual-channel measurement instruments.
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©2013 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.