Estimating gravity acceleration from static atomic gravimeter by Kalman filtering

Abstract

We present the construction of the two-state model of the atomic gravimeter and the associated Kalman recursion to estimate gravity acceleration from atomic gravimeter. We find the Kalman estimator greatly improve the precision of estimates in short term by removing the white phase noise. The residual noise of the estimates follows 0.13 muGal/\sqrt{s} for up to more than 100 s and highlights a precision of 0.34 muGal at the measuring time of a single sample, even with no seismometer correction.

arXiv admin note: text overlap with arXiv:2205.14796

References in corpus (8)

• Limits to the sensitivity of a low noise compact atomic gravimeter
• Stability comparison of two absolute gravimeters: optical versus atomic interferometers
• Absolute airborne gravimetry with a cold atom sensor
• Operating an atom interferometer beyond its linear range
• Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G
• Simultaneous accurate determination of both gravity and its vertical gradient
• Fluorescence detection at the atom shot noise limit for atom interferometry
• Low noise phase-locked laser system for atom interferometry