Position fixing with cold atom gravity gradiometers

Phillips, Alexander M ORCID: 0000-0002-1637-4803, Wright, Michael J, Riou, Isabelle, Maddox, Stephen, Maskell, Simon ORCID: 0000-0003-1917-2913 and Ralph, Jason F ORCID: 0000-0002-4946-9948 (2022) Position fixing with cold atom gravity gradiometers. AVS Quantum Science, 4 (2). 024404-024404.

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Official URL: http://dx.doi.org/10.1116/5.0095677

Abstract

<jats:p>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 1000 km.</jats:p>

Item Type:	Article
Divisions:	Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User:	Symplectic Admin
Date Deposited:	18 Aug 2022 14:57
Last Modified:	21 Aug 2023 02:55
DOI:	10.1116/5.0095677
Open Access URL:	https://avs.scitation.org/doi/10.1116/5.0095677
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3161576