Title :
Analysis on the Characterization of Clock Behavior with Wavelet Entropy
Author :
Li, Jianxun ; Ke, Xizheng ; Zhao, Li
Author_Institution :
Sch. of Autom. & Inf. Eng., Xi´´an Univ. of Technol.
Abstract :
The wavelet entropy (WE), a new quantity is introduced to describe the time-frequency character of an atomic clock. It can be obtained through synthesizing wavelet coefficients based on energy partition. We connected the Allan variance with the wavelet entropy, and used the WE to character the stability of a clock. The performance of the approach was examined by real data and the results demonstrated its validity in analyzing the characterization of clock behavior
Keywords :
atomic clocks; fluctuations; time-frequency analysis; wavelet transforms; Allan variance; atomic clock; clock behavior; energy partition; time-frequency character; wavelet coefficients; wavelet entropy; Atomic clocks; Discrete wavelet transforms; Entropy; Frequency measurement; Signal analysis; Stability; Time frequency analysis; Time measurement; Wavelet analysis; Wavelet coefficients;
Conference_Titel :
International Frequency Control Symposium and Exposition, 2006 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0074-0
Electronic_ISBN :
1-4244-0074-0
DOI :
10.1109/FREQ.2006.275454
