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Publication Citation: A digital time scale at the National Institute of Standards and Technology

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Author(s): Stefania Romisch; Steven R. Jefferts; Thomas E. Parker;
Title: A digital time scale at the National Institute of Standards and Technology
Published: August 13, 2011
Abstract: An integrated time scale has as primary data unit of duration (time interval) defined by atomic standards according to the definition of the SI second. The availability of more than one atomic standard allows for averaging, thereby improving the performance of the time scale with respect to each of the atomic standards (clocks). The measurement of time differences between the different clocks is at the core of a time scale. A novel approach to the measurement of time differences has been developed at NIST and will be compared with the present commercial state-of-the-art.
Proceedings: Proceedings of 2011 General Assembly and Scientific Symposium of International Union of Radio Science (URSI)
Pages: pp. 1 - 4
Location: Istanbul, -1
Dates: August 13-20, 2011
Keywords: digital measurement system;time scale;SI second;atomic standard;time-difference measurements
Research Areas: Physics