Tennstedt, B.; Schön, S.: Integration of atom interferometers and inertial measurement units to improve navigation performance. In: 28th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS). Piscataway, NJ : IEEE, 2021. DOI:
https://doi.org/10.23919/ICINS43216.2021.9470809
Zusammenfassung: |
This paper explores a way of combining conventional inertial sensors with cold atom interferometers (CAI) in
order to reduce the drift of the navigation solutions in velocity
and orientation. Instead of complementing and improving the
CAI with conventional sensors, in this approach the conventional
IMU will be used as main sensor for a prediction of the kinematic
state. The CAI is then used for the correction of systematic errors
and offsets in the framework of an extended Kalman Filter.
Monte Carlo simulation studies demonstrate an improvement
of the navigation solution precision. In addition, most drifts of
velocity and orientation can be eliminated and the uncertainty of
the velocity solution can further be reduced by a factor of 30 or
more compared to the conventional strapdown. The observability of the error states is discussed.
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Lizenzbestimmungen: |
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Publikationstyp: |
BookPart |
Publikationsstatus: |
acceptedVersion |
Erstveröffentlichung: |
2021 |
Schlagwörter (englisch): |
Inertial navigation, Cold atom interferometry, Hybridization, Extended Kalman Filter
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Fachliche Zuordnung (DDC): |
620 | Ingenieurwissenschaften und Maschinenbau
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Kontrollierte Schlagwörter: |
Konferenzschrift
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