Study of algorithm to ensemble atomic time
Chong Xia Zhong, Yue Xu, Jun Yang, Sheng Kang Zhang · 2009
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.