https://doi.org/10.1140/epjd/s10053-024-00888-6
Regular Article - Atomic Physics
A two-state Kalman estimator for atomic gravimetry
School of Science, Shenyang University of Technology, 110870, Shenyang, Liaoning, China
Received:
21
September
2023
Accepted:
24
June
2024
Published online:
24
July
2024
We present a two-state Kalman estimator of gravity acceleration and evaluate its performance by numerical simulations and post-measurement demonstration with real-world atomic gravimetry. We show that the estimator-enhanced gravimetry significantly improves upon both short-term sensitivity and long-term stability. The estimates of gravity acceleration demonstrate a 
feature well under white phase noise in the short term, and continue to improve as 
or improve faster as 
in the long term. This work validates the estimation of gravity acceleration as a key topic for future atomic gravimetry.
Graphical abstract: The performance of atomic gravimetry is limited by noises and other systematic or geophysical effects. By building a Kaman estimator rooted in the physics of atom interferometry, we realize significant improvements in both short-term sensitivity and long-term stability. This demonstration of estimator-enhanced gravimetry would be of great interest for static measurements of gravity, such as metrology or geophysics (Color online)
The original online version of this article was revised: The incorrect image was initially published as Fig. 2. Figure 2 and the corresponding caption have been updated.
A correction to this article is available online at https://doi.org/10.1140/epjd/s10053-024-00908-5.
Copyright comment corrected publication 2024
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. corrected publication 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
