Results 11 to 20 of about 6,623 (297)
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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Hydrogen atomic clock difference prediction based on the LSSVM
The Journal of Engineering, 2019 The atomic clock prediction is the key step for constructing atomic clock time scales and implementing atomic clocks steering, and its prediction level directly affects the accuracy and stability of atomic clock time scales.
Jiangmiao Zhu +4 more
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New Journal of Physics, 2018 Atomic clocks use atomic transitions as frequency references. The susceptibility of the atomic transition to external fields limits clock stability and introduces systematic frequency shifts.
Nitzan Akerman, Roee Ozeri
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Design of a RF Switch Used in Redundant Atomic Clock Configurations
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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Entanglement on an optical atomic-clock transition [PDF]
Nature, 2020 State-of-the-art atomic clocks are based on the precise detection of the energy difference between two atomic levels, which is measured in terms of the quantum phase accumulated over a given time interval1-4. The stability of optical-lattice clocks (OLCs) is limited both by the interrupted interrogation of the atomic system by the local-oscillator ...
Boris Braverman, Zeyang Li, Chi Shu
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A chip-scale atomic beam clock [PDF]
Nature Communications, 2023 Atomic beams are a longstanding technology for atom-based sensors and clocks with widespread use in commercial frequency standards. Here, we report the demonstration of a chip-scale microwave atomic beam clock using coherent population trapping (CPT ...
Gabriela D. Martinez +5 more
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Disciplining a Rubidium Atomic Clock Based on Adaptive Kalman Filter
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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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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