[HTML][HTML] Mirror Clock: A Strategy for Identifying Atomic Clock Frequency Jumps

M Liu, Y Chen, Q Xu, Y Wang, Y Gao, A Zhang - Sensors, 2022 - mdpi.com
… In this case, we can analyze for each clock individually and identify the … the model detects
an error in the atomic clock. The corrected atomic clock can be created by swapping the jump

Atomic clocks and the continuous-time random-walk

V Formichella, J Camparo, P Tavella - The European Physical Journal B, 2017 - Springer
… Note that this case is exactly the one we are most interested in, since the … of atomic clocks,
in particular the mathematical modelling of a rubidium clock’s lamplight/frequency jumps and …

Robust detection of fast and slow frequency jumps of atomic clocks

L Galleani, P Tavella - IEEE Transactions on Ultrasonics …, 2016 - ieeexplore.ieee.org
… therefore have a direct negative impact on the user positioning error [15]–[17]. The advantage
… A critical but interesting case is to detect jumps when the natural clock behavior is affected …

Detecting an atomic clock frequency anomaly using an adaptive Kalman filter algorithm

H Song, S Dong, W Wu, M Jiang, W Wang - Metrologia, 2018 - iopscience.iop.org
… of units (as in the case of mass and time) to coordination through … of an atomic clock mainly
include frequency jump and … according to a mathematical model and statistical method. …

A new approach to improve satellite clock estimates, removing the inter-day jumps

JM Juan, J Sanz, A Rovira-Garcia… - … Precise Time and Time …, 2020 - ion.org
… solutions, where it should be expected a linear behaviour of the atomic clocks. In this
case, as for the receiver clocks, most of the RMS errors are maintained at the level of few …

An analysis of the stationary operation of atomic clocks

M Fraas - Communications in Mathematical Physics, 2016 - Springer
… was denoted by yn and the jump at the right side of the … a mathematical model of atomic
clocks, see Eq. (26), and studied the stationary state of this model for the case of unbiased clocks

Influence of the ac-Stark shift on GPS atomic clock timekeeping

V Formichella, J Camparo, P Tavella - Applied Physics Letters, 2017 - pubs.aip.org
… that lamplight jumps, which lead to RAFS frequency jumps via the light shift, … Note that in all
cases, the effect size is less than unity, … error of the satellites and the time error of the onboard …

Atomic clocks for geodesy

TE Mehlstäubler, G Grosche, C Lisdat… - Reports on Progress …, 2018 - iopscience.iop.org
… For the usual case of two earthbound clocks at rest, the resulting frequency shift is directly …
the law of error propagation), which again has to be considered as a best-case scenario. This …

On-line estimation of local oscillator noise and optimisation of servo parameters in atomic clocks

ID Leroux, N Scharnhorst, S Hannig, J Kramer… - Metrologia, 2017 - iopscience.iop.org
… available error estimate, e 2 the preceding error estimate, … , when the clock servo is jumping
between Ramsey fringes. … In this case we can be certain that the phase was not near $\…

Quantum variational optimization of Ramsey interferometry and atomic clocks

R Kaubruegger, DV Vasilyev, M Schulte, K Hammerer… - Physical review X, 2021 - APS
… is the Bayesian mean squared error of the estimated phase for … In analogous variational
optimizations of optical atomic clocks… Appendix D for the case of a phase operator as observable. …