Results 11 to 20 of about 100,185 (141)
Improving the start-up characteristics of the rubidium atomic clock
AIP Advances, 2022 Considering the importance of start-up characteristics of the rubidium atomic clock in engineering applications, the objective of this paper is to optimize the start-up characteristics of the rubidium atomic clock by studying the theory of the rubidium ...
Yonggang Guo +8 more
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Evaluating Optical Clock Performance for GNSS Positioning
Sensors, 2023 Atomic clocks are highly precise timing devices used in numerous Positioning, Navigation, and Timing (PNT) applications on the ground and in outer space.
Enkhtuvshin Boldbaatar +4 more
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IEEE Access, 2021 The prediction of Satellites’ Clock Bias (SCB) plays an important role in optimizing the clock bias parameters in navigation messages, meeting the requirements of real-time dynamic precise point positioning and providing the prior information ...
Yifeng Liang +3 more
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A modified C-field circuit for the rubidium atomic clock
AIP Advances, 2021 As one of the important circuits of the rubidium atomic clock, the C-field circuit plays a significant role in the rubidium atomic clock’s performance. Generally, a C-field circuit is used to provide a constant current to a C-field coil by forming a weak
Yonggang Guo +8 more
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An optically pumped atomic clock based on a continuous slow cesium beam
Frontiers in Physics, 2022 Herein, we report the scheme of an optically pumped atomic clock based on a cold cesium atomic beam source. We propose the laser system and physical mechanism of this atomic clock, wherein the atomic beam travels in an upper parabolic trajectory, thereby
Weibin Xie +10 more
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Remote Sensing, 2022 The quality of satellite clock offset affects the performances of positioning, navigation and timing services, and thus it is essential to the Global Navigation Satellite System (GNSS).
Hu Wang +5 more
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Comparison of Gravitational and Light Frequency Shifts in Rubidium Atomic Clock
Universe, 2020 The article presents the results of an experimental study of the external magnetic field orientation and magnitude influence on the rubidium atomic clock, simulating the influence of the geomagnetic field on the onboard rubidium atomic clock of ...
Alexey Baranov +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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Frontiers in Physics, 2023 Attempts are made to unify gravity with the other three fundamental forces of nature. As suggested by higher dimensional models, this unification may require space and time variation of some of the dimensionless fundamental constants.
Yan-Mei Yu +3 more
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A chip-scale atomic beam clock
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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