Research on the Method of Noise Error Estimation of Atomic Clockstwo |
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Authors: | Hui-jie Song Shao-wu Dong Wei Li Ji-hai Zhang Yue-juan Jing |
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Affiliation: | 1. National Time Service Center, Chinese Academy of Sciences, Xi’an 710600;2. Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi’an 710600;3. University of Chinese Academy of Sciences, Beijing 100049 |
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Abstract: | The simulation methods of different kinds of noises of atomic clocks are given. The frequency flicker noise of atomic clocks is studied by using the Markov process theory. The method for estimating the maximum interval error of the frequency white noise is studied by using the Wiener process theory. Based on the operation of 9 cesium atomic clocks in the laboratory of time and frequency primary standards of NTSC (National Time Service Center), the noise factors of power-law spectrum models are estimated, and the simulations are carried out according to the corresponding noise models. Finally, the maximum interval error estimates of the frequency white noises generated by the 9 cesium atomic clocks are acquired. |
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Keywords: | astrometry: time Atomic clock noise methods: data analysis |
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