Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | navi.604 |
| Fachzeitschrift | Navigation, Journal of the Institute of Navigation |
| Jahrgang | 70 |
| Ausgabenummer | 4 |
| Frühes Online-Datum | 3 Juli 2023 |
| Publikationsstatus | Veröffentlicht - 2023 |
Abstract
We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a newly introduced sensor frame, enabling hybridization of both systems in terms of acceleration and angular rate measurements. The sensor frame allows for an easier mathematical description of the CAI measurement and integration into higher-level navigation systems. The dynamic terms resulting from the transformation of the IMU frame into the CAI sensor frame are evaluated in simulations. The implementation of the method as a prediction model in an extended Kalman filter is explained and demonstrated in realistic simulations, showing improvements of over two orders of magnitude with respect to the conventional IMU strapdown solution. Finally, the implications of these findings for future hybrid quantum navigation systems are discussed.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Luft- und Raumfahrttechnik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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in: Navigation, Journal of the Institute of Navigation, Jahrgang 70, Nr. 4, navi.604, 2023.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Atom Strapdown: Toward Integrated Quantum Inertial Navigation Systems
AU - Tennstedt, Benjamin
AU - Rajagopalan, Ashwin
AU - Weddig, Nicolai Ben
AU - Abend, Sven
AU - Schön, Steffen
AU - Rasel, Ernst Maria
N1 - This research was funded by the Federal Ministry for Economic Affairs and Climate Action (BMWK) due to an enactment of the German Bundestag under Grant 50RK1957 (QGyro) and 50NA2106 (QGyro+). The team also acknowledges funding from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 QuantumFrontiers—Project-ID 390837967.
PY - 2023
Y1 - 2023
N2 - We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a newly introduced sensor frame, enabling hybridization of both systems in terms of acceleration and angular rate measurements. The sensor frame allows for an easier mathematical description of the CAI measurement and integration into higher-level navigation systems. The dynamic terms resulting from the transformation of the IMU frame into the CAI sensor frame are evaluated in simulations. The implementation of the method as a prediction model in an extended Kalman filter is explained and demonstrated in realistic simulations, showing improvements of over two orders of magnitude with respect to the conventional IMU strapdown solution. Finally, the implications of these findings for future hybrid quantum navigation systems are discussed.
AB - We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a newly introduced sensor frame, enabling hybridization of both systems in terms of acceleration and angular rate measurements. The sensor frame allows for an easier mathematical description of the CAI measurement and integration into higher-level navigation systems. The dynamic terms resulting from the transformation of the IMU frame into the CAI sensor frame are evaluated in simulations. The implementation of the method as a prediction model in an extended Kalman filter is explained and demonstrated in realistic simulations, showing improvements of over two orders of magnitude with respect to the conventional IMU strapdown solution. Finally, the implications of these findings for future hybrid quantum navigation systems are discussed.
KW - atom interferometry
KW - hybridization
KW - inertial navigation
KW - sensor fusion
UR - http://www.scopus.com/inward/record.url?scp=85168417571&partnerID=8YFLogxK
U2 - 10.33012/navi.604
DO - 10.33012/navi.604
M3 - Article
VL - 70
JO - Navigation, Journal of the Institute of Navigation
JF - Navigation, Journal of the Institute of Navigation
SN - 0028-1522
IS - 4
M1 - navi.604
ER -