The Statistics of the Atomic Clock Noise

  • Lorenzo Galleani


Precise timing has several applications, and their number is steadily increasing. Atomic clocks are the main actors of this phenomenon, a consequence of the fact that they provide the most accurate time measurements currently available. By definition, the accuracy of a clock is its deviation from the Coordinated Universal Time (UTC), the time standard based on the International Atomic Time (TAI), which is obtained by averaging more than 300 atomic clocks throughout the world [1]. The most precise atomic clock presently available guarantees a time error in the determination of the second that is equivalent to±1s in 10 million years.


Global Navigation Satellite System Frequency Deviation Atomic Clock Allan Variance Coordinate Universal Time 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the PRIN 2007 program.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Politecnico di TorinoTorinoItaly

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