Title :
Fast computation of the dynamic Allan variance
Author :
Galleani, Lorenzo ; Tavella, Patrizia
Author_Institution :
Politec. di Torino, Torino, Italy
Abstract :
The dynamic Allan variance (DAVAR) is a tool that allows to understand if the stability of an atomic clock is changing with time. Since an anomaly in the clock behavior generates a change in its stability, the DAVAR can be used to monitor the performances of a clock. In this paper we present a fast algorithm for the computation of the DAVAR, which outperforms the classical computational method.
Keywords :
atomic clocks; difference equations; DAVAR; dynamic Allan variance; Aging; Atomic clocks; Frequency; Humidity; Life estimation; Monitoring; Performance evaluation; Stability; Temperature; White noise;
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2009.5168270
