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

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  • German Aerospace Center (DLR)
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Details

Original languageEnglish
Title of host publicationGeodesy for a Sustainable Earth - Proceedings of the 2021 Scientific Assembly of the International Association of Geodesy
EditorsJeffrey T. Freymueller, Laura Sánchez
PublisherSpringer Science and Business Media Deutschland GmbH
Pages221-231
Number of pages11
ISBN (electronic)978-3-031-29507-2
ISBN (print)9783031295065
Publication statusPublished - 2023
EventScientific Assembly of the International Association of Geodesy, IAG 2021 - Beijing, China
Duration: 28 Jun 20212 Jul 2021

Publication series

NameInternational Association of Geodesy Symposia
Volume154
ISSN (Print)0939-9585
ISSN (electronic)2197-9359

Abstract

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.

Keywords

    Atom interferometry, Hybrid accelerometer, Quantum sensor, Satellite gravimetry

ASJC Scopus subject areas

Sustainable Development Goals

Cite this

Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions. / HosseiniArani, Alireza; Tennstedt, Benjamin; Schilling, Manuel et al.
Geodesy for a Sustainable Earth - Proceedings of the 2021 Scientific Assembly of the International Association of Geodesy. ed. / Jeffrey T. Freymueller; Laura Sánchez. Springer Science and Business Media Deutschland GmbH, 2023. p. 221-231 (International Association of Geodesy Symposia; Vol. 154).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

HosseiniArani, A, Tennstedt, B, Schilling, M, Knabe, A, Wu, H, Schön, S & Müller, J 2023, Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions. in JT Freymueller & L Sánchez (eds), Geodesy for a Sustainable Earth - Proceedings of the 2021 Scientific Assembly of the International Association of Geodesy. International Association of Geodesy Symposia, vol. 154, Springer Science and Business Media Deutschland GmbH, pp. 221-231, Scientific Assembly of the International Association of Geodesy, IAG 2021, Beijing, China, 28 Jun 2021. https://doi.org/10.1007/1345_2022_172
HosseiniArani, A., Tennstedt, B., Schilling, M., Knabe, A., Wu, H., Schön, S., & Müller, J. (2023). Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions. In J. T. Freymueller, & L. Sánchez (Eds.), Geodesy for a Sustainable Earth - Proceedings of the 2021 Scientific Assembly of the International Association of Geodesy (pp. 221-231). (International Association of Geodesy Symposia; Vol. 154). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/1345_2022_172
HosseiniArani A, Tennstedt B, Schilling M, Knabe A, Wu H, Schön S et al. Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions. In Freymueller JT, Sánchez L, editors, Geodesy for a Sustainable Earth - Proceedings of the 2021 Scientific Assembly of the International Association of Geodesy. Springer Science and Business Media Deutschland GmbH. 2023. p. 221-231. (International Association of Geodesy Symposia). Epub 2022 Oct 22. doi: 10.1007/1345_2022_172
HosseiniArani, Alireza ; Tennstedt, Benjamin ; Schilling, Manuel et al. / Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions. Geodesy for a Sustainable Earth - Proceedings of the 2021 Scientific Assembly of the International Association of Geodesy. editor / Jeffrey T. Freymueller ; Laura Sánchez. Springer Science and Business Media Deutschland GmbH, 2023. pp. 221-231 (International Association of Geodesy Symposia).
Download
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title = "Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions",
abstract = "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.",
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T1 - Kalman-Filter Based Hybridization of Classic and Cold Atom Interferometry Accelerometers for Future Satellite Gravity Missions

AU - HosseiniArani, Alireza

AU - Tennstedt, Benjamin

AU - Schilling, Manuel

AU - Knabe, Annike

AU - Wu, Hu

AU - Schön, Steffen

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N1 - Funding Information: This work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) Collaborative Research Center 1464 “TerraQ” – 434617780 and Germany’s Excellence Strategy – EXC-2123 “QuantumFrontiers” – 390837967. B.T. acknowledges support from the Federal Ministry for Economic Affairs and Energy (BMWi), Project 50RK1957. A.K. acknowledges support from “Niedersächsisches Vorab” through initial funding of research in the DLR-SI institute.

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Y1 - 2023

N2 - 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.

AB - 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.

KW - Atom interferometry

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