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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A modified C-field circuit for the rubidium atomic clock [PDF]
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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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
doaj +3 more sources
Comparison of Gravitational and Light Frequency Shifts in Rubidium Atomic Clock [PDF]
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
doaj +2 more sources
Research on the atomic clock signal denoising method based on the hyperbolic tangent smooth threshold function [PDF]
Scientific ReportsTo address the discontinuity and constant bias inherent in traditional hard and soft threshold functions, an atomicclock signal denoising method based on the hyperbolic tangent smooth threshold function was proposed. The atomicclock signal was decomposed
Qiang Liu +4 more
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Co-transmission of radio frequency reference and data signal over multi-core fiber [PDF]
Scientific ReportsInformation and communication technology has continuously driven the demand for higher data transmission rates. At the same time, frequency synchronization technology also needs to continually adapt to the high-precision frequency references required ...
Lei Liu +4 more
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Multi-parameter microwave quantum sensing with a single atomic probe [PDF]
Scientific ReportsWe demonstrate a multi-parameter sensing scheme for free space microwave electric and magnetic fields in single vapor cell based on the atom-based microwave detection techniques.
Zhigang Feng +3 more
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Research on Pressure Compensation for the Rubidium Atomic Clock Working in Atmospheric Environment
Chinese Journal of Magnetic ResonanceVapor cell rubidium atomic clock is widely used in the fields of satellite navigation and communication with advantages including small size, light weight, low power and maintenance cost.
LI Junyao +8 more
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Frequency Instability Impact of Low-Cost SDRs on Doppler-Based Localization Accuracy [PDF]
SensorsIn this paper, we explore several widely available software-defined radio (SDR) platforms that could be used for locating with the signal Doppler frequency (SDF) method.
Kacper Bednarz +3 more
doaj +2 more sources
Effect of shield magnetization on variations in the frequency of onboard rubidium atomic clocks
St. Petersburg Polytechnical University Journal: Physics and MathematicsIn the paper, the results of a study of the influence of the magnetic shield magnetization on the relative frequency instability of small-sized rubidium atomic clocks have been presented.
Ermak Sergey +4 more
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