Mirror Clock: A Strategy for Identifying Atomic Clock Frequency Jumps [PDF]
Sensors, 2022 Atomic clock frequency jumps directly influence the accuracy and reliability of timekeeping systems. The necessary corrections are typically implemented by postprocessing mutual comparison data between multiple atomic clocks based on the overly strict ...
Mochi Liu +5 more
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Test and Analysis of Timekeeping Performance of Atomic Clock [PDF]
Sensors, 2022 At present, there are few articles about the timekeeping performance of domestic atomic clocks in their moving state. In this paper, the frequency stability changes of hydrogen atomic and cesium atomic clocks in stationary and moving states are compared ...
Shuaichen Li +3 more
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Design of a RF Switch Used in Redundant Atomic Clock Configurations [PDF]
Sensors, 2019 Atomic clocks provide frequency reference signals for communication, aerospace, satellite navigation and other systems. The redundant configuration of atomic clocks is necessary for ensuring the continuity and stability of the system.
Yuqing Hou +3 more
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Disciplining a Rubidium Atomic Clock Based on Adaptive Kalman Filter [PDF]
SensorsRubidium atomic clocks have been used extensively in various fields, with applications such as a core component of Global Navigation Satellite Systems (GNSS). However, they exhibit inherently poor long-term stability.
Kun Liu +3 more
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Long-Term Stability Improvements of the Miniature Atomic Clock Through Enhanced Thermal Environmental Control [PDF]
SensorsAdvancement of compact atomic clocks has centered on reducing footprint and power consumption. Such developments come at the cost of the clock’s stability performance.
Emily Gokie +2 more
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Microcell atomic clock using laser current-actuated power modulation with 10−12 range stability at 1 day [PDF]
Scientific ReportsWe present a coherent-population trapping (CPT) microcell atomic clock using symmetric auto-balanced Ramsey (SABR) spectroscopy. The pulsed SABR sequence is applied through direct current-based power modulation of the vertical-cavity surface-emitting ...
Carlos Manuel Rivera-Aguilar +7 more
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An atomic clock synchronized versatile all-in-one digital ‘LockBox’ [PDF]
Scientific ReportsA reliable and robust active stabilization of different control parameters is key to the success of many experiments. The essential hardware for that; lock-in detection, RF generator, and proportional-integral-derivative feedback control should have ...
S. Johnson +5 more
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New Journal of Physics, 2016 The instability of an atomic clock is characterized by the Allan variance, a measure widely used to describe the noise of frequency standards. We provide an explicit method to find the ultimate bound on the Allan variance of an atomic clock in the most ...
Krzysztof Chabuda +2 more
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UNDERWATER ACOUSTIC MODEM WITH HIGH PRECISION RANGING CAPABILITY BASED ON SECOND-LEVEL CESIUM ATOMIC CLOCK [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Equipped with a high-precision atomic clock can significantly improve the ranging accuracy of the underwater acoustic ranging system. However, the adverse characteristic of underwater acoustic channel (UAC) seriously deteriorates the ranging accuracy. In
J. Li +6 more
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Measurement and Analysis of Atomic Relaxation Time in Active Hydrogen Atomic Clocks
Chinese Journal of Magnetic Resonance, 2022 The atomic relaxation time of a hydrogen atomic clock is the time required for atomic system after the selected state removing the atoms of the ground state hyperfine energy level (F = 0, mF = 0) and (F = 1, mF = −1) state to change from the (F = 1, mF =
LIANG Yue, XIE Yong-hui, CHEN Peng-fei
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