DocumentCode
2591932
Title
Study of algorithm to ensemble atomic time
Author
Zhong, Chong Xia ; Xu, Yue Qing ; Yang, Jun ; Zhang, Sheng Kang
Author_Institution
Beijing Inst. of Radio Metrol. & Meas., Beijing, China
fYear
2009
fDate
20-24 April 2009
Firstpage
664
Lastpage
669
Abstract
An ensemble atomic time algorithm was developed based on wavelet packet analysis. Ensemble atomic time can be obtained by decomposing the clock difference of atomic clocks, extracting the components of different frequency domain, and then choosing the weight according to the stability of different component denoted with wavelet variance. The optimization characteristic of genetic algorithm was introduced and model of atomic clock signal was constructed. And genetic algorithm was used to optimize this model, then to validate the optimization model with dispersion data of atomic clock measured in laboratory. It can prove that genetic algorithm and wavelet packet algorithm was appropriate.
Keywords
atomic clocks; frequency-domain analysis; genetic algorithms; wavelet transforms; atomic clock signal; clock difference; ensemble atomic time algorithm; frequency domain; genetic algorithm; wavelet packet analysis; Algorithm design and analysis; Atomic clocks; Atomic measurements; Dispersion; Frequency domain analysis; Genetic algorithms; Stability; Wavelet analysis; Wavelet domain; Wavelet packets;
fLanguage
English
Publisher
ieee
Conference_Titel
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location
Besancon
ISSN
1075-6787
Print_ISBN
978-1-4244-3511-1
Electronic_ISBN
1075-6787
Type
conf
DOI
10.1109/FREQ.2009.5168266
Filename
5168266
Link To Document