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Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions

HosseiniArani, Alireza and Tennstedt, Benjamin and Schilling, Manuel and Knabe, Annike and Wu, Hu and Schön, Steffen and Müller, Jürgen (2022) Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions. In: Geodesy for a sustainable Earth. Springer, Berlin, Heidelberg. Scientific Assembly of the International Association of Geodesy, 2021-06-28 - 2021-07-02, Beijing, China (online). doi: 10.1007/1345_2022_172. ISSN 0939-9585.

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Official URL: https://link.springer.com/chapter/10.1007/1345_2022_172


Proof-of-principle demonstrations have been made for cold atom interferometer (CAI) sensors. Using CAI-based accelerometers in the next generation of satellite gravimetry missions can provide long-term stability and precise measurements of the non-gravitational forces acting on the satellites. This would allow a better understanding of climate change processes and geophysical phenomena which require long-term monitoring of mass variations with sufficient spatial and temporal resolution. The proposed accuracy and long-term stability of CAI-based accelerometers appear promising, while there are some major drawbacks in the long dead times and the comparatively small dynamic range of the sensors. One interesting way to handle these limitations is to use a hybridization with a conventional navigation sensor. This study discusses one possible solution to employ measurements of a CAI accelerometer together with a conventional Inertial Measurement Unit (IMU) using a Kalman filter framework. A hybrid navigation solution of these two sensors for applications on ground has already been demonstrated in simulations. Here, we adapt this method to a space-based GRACE-like gravimetry mission. A simulation is performed, where the sensitivity of the CAI accelerometer is estimated based on state-of-the-art ground sensors and further published space scenarios. Our results show that the Kalman filter framework can be used to combine the measurements of conventional inertial measurement units with the CAI accelerometers measurements in a way to benefit from the high accuracy of the conventional IMU measurements in higher frequencies together with the high stability of CAI measurements in lower frequencies. We will discuss the challenges, potential solutions, and the possible performance limits of the proposed hybrid accelerometry scenario.

Item URL in elib:https://elib.dlr.de/189303/
Document Type:Conference or Workshop Item (Speech)
Title:Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
HosseiniArani, AlirezaInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5080-7094UNSPECIFIED
Tennstedt, BenjaminInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0003-4362-0667UNSPECIFIED
Schilling, ManuelUNSPECIFIEDhttps://orcid.org/0000-0002-9677-0119UNSPECIFIED
Knabe, AnnikeInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-6603-8648UNSPECIFIED
Wu, HuLUH, Leibniz University of Hannoverhttps://orcid.org/0000-0002-2585-5123UNSPECIFIED
Schön, SteffenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5042-6742UNSPECIFIED
Müller, JürgenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0003-1247-9525UNSPECIFIED
Journal or Publication Title:Geodesy for a sustainable Earth
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:Springer, Berlin, Heidelberg
Series Name:International Association of Geodesy Symposia
Keywords:Atom interferometry, Hybrid accelerometer, Quantum sensor, Satellite gravimetry
Event Title:Scientific Assembly of the International Association of Geodesy
Event Location:Beijing, China (online)
Event Type:international Conference
Event Start Date:28 June 2021
Event End Date:2 July 2021
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 11:19
Last Modified:24 Apr 2024 20:50

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