Position fixing with cold atom gravity gradiometers
arXiv:2204.05246 · doi:10.1116/5.0095677
Abstract
This paper proposes a position fixing method for autonomous navigation using partial gravity gradient solutions from cold atom interferometers. Cold atom quantum sensors can provide ultra-precise measurements of inertial quantities, such as acceleration and rotation rates. However, we investigate the use of pairs of cold atom interferometers to measure the local gravity gradient and to provide position information by referencing these measurements against a suitable database. Simulating the motion of a vehicle, we use partial gravity gradient measurements to reduce the positional drift associated with inertial navigation systems. Using standard open source global gravity databases, we show stable navigation solutions for trajectories of over 1000km.
arXiv comment10 pages, 6 figures
References in corpus (14)
- Sensitive Absolute Gravity Gradiometry Using Atom Interferometry
- Multi-axis inertial sensing with long-time point source atom interferometry
- Detecting inertial effects with airborne matter-wave interferometry
- 6-axis inertial sensor using cold-atom interferometry
- Exploring gravity with the MIGA large scale atom interferometer
- Sensitivity limits of a Raman atom interferometer as a gravity gradiometer
- Testing Gravity with Cold-Atom Interferometers
- Absolute airborne gravimetry with a cold atom sensor
- Navigation-compatible hybrid quantum accelerometer using a Kalman filter
- Comparison between two mobile absolute gravimeters: optical versus atomic interferometers
- Multiaxis atom interferometry with a single diode laser and a pyramidal magneto-optical trap
- Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study
- Phase shift in atom interferometers: corrections for non-quadratic potentials and finite-duration laser pulses
- Multiport Atom Interferometry for Inertial Sensing