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EnglishDue to their stability atomic clocks represent the core of navigation systems such as GPS and the future European Galileo system. To identify possible anomalies, it is fundamental to detect when the clock stability varies with time. The dynamic Allan variance (DAVAR) makes this monitoring process possible. We extend the DAVAR to the case of a time series with missing data, and we analyze the presence of periodic behaviors, two common phenomena in space clocks.
http://hdl.handle.net/11696/29157| Titolo: | Application of the Dynamic Allan Variance for the Characterization of Space Clock Behavior |
| Autori interni: | SESIA, ILARIA TAVELLA, PATRIZIA |
| Data di pubblicazione: | 2011 |
| Rivista: | IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS |
| Abstract: | Due to their stability atomic clocks represent the core of navigation systems such as GPS and the future European Galileo system. To identify possible anomalies, it is fundamental to detect when the clock stability varies with time. The dynamic Allan variance (DAVAR) makes this monitoring process possible. We extend the DAVAR to the case of a time series with missing data, and we analyze the presence of periodic behaviors, two common phenomena in space clocks. |
| Handle: | http://hdl.handle.net/11696/29157 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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