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Cold Atom Interferometry Accelerometers for Future Low-Low Satellite-to-Satellite Tracking and Gradiometry Missions

Knabe, Annike and Schilling, Manuel and HosseiniArani, Alireza and Müller, Jürgen and Beaufils, Quentin and Pereira dos Santos, Franck (2022) Cold Atom Interferometry Accelerometers for Future Low-Low Satellite-to-Satellite Tracking and Gradiometry Missions. Gravity, Geoid and Height Systems 2022, 2019-09-12 - 2019-09-14, Austin, Texas, Vereinigte Staaten.

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Abstract

The interest in a higher spatial and temporal resolution of the Earth's gravity field is large in various disciplines and especially important in relation to climate change. We analyze possible improvements of the accelerometers for future satellite gravity missions. The classical electrostatic accelerometers suffer from their low-frequency drift and are the limiting factor on the instrument side. The Cold Atom Interferometry (CAI) accelerometers with their long-term stability would complement the classical accelerometers very well. Different accelerometer performance models are tested within a closed-loop simulation and the corresponding gravity field solution is recovered. An improvement and the reduction of the North-South striping effects are shown when using a hybrid accelerometer. However, the low sampling rate of the CAI sensor leads to aliasing effects due to the variation of the acceleration signal. The well know scale factor of the CAI measurements, on the contrary, is a great advantage. According to these two aspects, several altitudes and drag compensation scenarios are investigated. Furthermore, a combination of the two measurement concepts low-low Satellite-to-Satellite Tracking and gradiometry is studied. A more isotropic error pattern is achieved when adding to a low-low Satellite-to-Satellite Tracking a hybrid gradiometer in cross-track direction.

Item URL in elib:https://elib.dlr.de/188748/
Document Type:Conference or Workshop Item (Speech)
Title:Cold Atom Interferometry Accelerometers for Future Low-Low Satellite-to-Satellite Tracking and Gradiometry Missions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Knabe, AnnikeInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-6603-8648UNSPECIFIED
Schilling, ManuelUNSPECIFIEDhttps://orcid.org/0000-0002-9677-0119UNSPECIFIED
HosseiniArani, AlirezaInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5080-7094UNSPECIFIED
Müller, JürgenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0003-1247-9525UNSPECIFIED
Beaufils, QuentinLNE--SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61, avenue de l'Observatoire, F--75014 PARIS, France, Paris, FRANCEUNSPECIFIEDUNSPECIFIED
Pereira dos Santos, FranckLNE--SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61, avenue de l'Observatoire, F--75014 PARIS, France, Paris, FRANCEhttps://orcid.org/0000-0003-0659-5028UNSPECIFIED
Date:2022
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:satellite gravimetry, quantum sensing, cold atom interferometer, hybrid accelerometer
Event Title:Gravity, Geoid and Height Systems 2022
Event Location:Austin, Texas, Vereinigte Staaten
Event Type:international Conference
Event Start Date:12 September 2019
Event End Date:14 September 2019
Organizer:International Association of Geodesy
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:07 Nov 2022 11:15
Last Modified:24 Apr 2024 20:50

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