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Improved Inertial Navigation With Cold Atom Interferometry

Tennstedt, Benjamin and Weddig, Nicolai Ben and Schön, Steffen (2022) Improved Inertial Navigation With Cold Atom Interferometry. Gyroscopy and Navigation, 12 (4), pp. 294-307. Pleiades Publishing. doi: 10.1134/S207510872104009X. ISSN 2075-1087.

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Official URL: https://link.springer.com/article/10.1134/S207510872104009X

Abstract

This article discusses chances and challenges of using cold atom interferometers in inertial navigation. The error characteristics of the novel sensor are presented, as well as one option for an online estimation of the different readout errors. An extended Kalman filter framework is derived and analysed which uses the readout of the atom interferometer as observation in order to correct several systematic errors of a conventional IMU, allowing for an improved strapdown calculation in an arbitrary target system. The performance gain is discussed analytically based on the steady state variances of the filter, as well as on the example of a simulated scenario for Earth orbit satellites. The correction of the conventional IMU errors is further demonstrated in an experiment under laboratory conditions with a higher class sensor emulating an atom interferometer. While the application of the novel technology as a gyroscope is still limited, as pointed out in the paper, the presented framework yields options for a full six degree of freedom operation of the atom interferometer.

Item URL in elib:https://elib.dlr.de/192797/
Document Type:Article
Title:Improved Inertial Navigation With Cold Atom Interferometry
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Tennstedt, BenjaminInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0003-4362-0667UNSPECIFIED
Weddig, Nicolai BenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0001-7401-936XUNSPECIFIED
Schön, SteffenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5042-6742UNSPECIFIED
Date:11 March 2022
Journal or Publication Title:Gyroscopy and Navigation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:12
DOI:10.1134/S207510872104009X
Page Range:pp. 294-307
Publisher:Pleiades Publishing
ISSN:2075-1087
Status:Published
Keywords:inertial navigation, cold atom interferometry, hybridization, extended Kalman filter
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Inertial Sensing for Space Applications
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing > Satellite Geodesy and Geodetic Modelling
Deposited By: Schilling, Manuel
Deposited On:06 Jan 2023 08:33
Last Modified:20 Oct 2023 08:08

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