Details
| Original language | English |
|---|---|
| Article number | e2024EA004187 |
| Journal | Earth and Space Science |
| Volume | 12 |
| Issue number | 4 |
| Publication status | Published - 26 Apr 2025 |
Abstract
Cold atom interferometry based quantum accelerometers (Q-ACCs) are very promising for future satellite gravity missions thanks to their strength in providing long-term stable and precise measurements of non-gravitational accelerations. However, their limitations due to the low measurement rate and the existence of ambiguities in the raw sensor measurements call for hybridization of the Q-ACC with a classical one (e.g., electrostatic) with higher bandwidth. While previous hybridization studies have so far considered simple noise models for the Q-ACC and neglected the impact of satellite rotation on the phase shift of the accelerometer, we perform here a more advanced hybridization simulation by implementing a comprehensive noise model for the satellite-based Q-ACCs and considering the full impact of rotation, gravity gradient, and self-gravity on the instrument. We perform simulation studies for scenarios with different assumptions about quantum and classical sensors and satellite missions. The performance benefits of the hybrid solutions, taking the synergy of both classical and Q-ACCs into account, will be quantified. We found that implementing a hybrid accelerometer onboard a future gravity mission improves the gravity solution by one to two orders in lower and higher degrees. In particular, the produced global gravity field maps show a drastic reduction in the instrumental contribution to the striping effect after introducing measurements from the hybrid accelerometers.
Keywords
- quantum sensors, satellite gravity missions, gravimetry, hybrid accelerometers, atom interferometry
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Science (miscellaneous)
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
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In: Earth and Space Science, Vol. 12, No. 4, e2024EA004187, 26.04.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Combined Classical and Quantum Accelerometers for Future Satellite Gravity Missions
AU - HosseiniArani, Alireza
AU - Schilling, Manuel
AU - Tennstedt, Benjamin
AU - Kupriyanov, Alexey
AU - Beaufils, Quentin
AU - Knabe, Annike
AU - Sreekantaiah, Arpetha C.
AU - dos Santos, Franck Pereira
AU - Schön, Steffen
AU - Müller, Jürgen
PY - 2025/4/26
Y1 - 2025/4/26
N2 - Cold atom interferometry based quantum accelerometers (Q-ACCs) are very promising for future satellite gravity missions thanks to their strength in providing long-term stable and precise measurements of non-gravitational accelerations. However, their limitations due to the low measurement rate and the existence of ambiguities in the raw sensor measurements call for hybridization of the Q-ACC with a classical one (e.g., electrostatic) with higher bandwidth. While previous hybridization studies have so far considered simple noise models for the Q-ACC and neglected the impact of satellite rotation on the phase shift of the accelerometer, we perform here a more advanced hybridization simulation by implementing a comprehensive noise model for the satellite-based Q-ACCs and considering the full impact of rotation, gravity gradient, and self-gravity on the instrument. We perform simulation studies for scenarios with different assumptions about quantum and classical sensors and satellite missions. The performance benefits of the hybrid solutions, taking the synergy of both classical and Q-ACCs into account, will be quantified. We found that implementing a hybrid accelerometer onboard a future gravity mission improves the gravity solution by one to two orders in lower and higher degrees. In particular, the produced global gravity field maps show a drastic reduction in the instrumental contribution to the striping effect after introducing measurements from the hybrid accelerometers.
AB - Cold atom interferometry based quantum accelerometers (Q-ACCs) are very promising for future satellite gravity missions thanks to their strength in providing long-term stable and precise measurements of non-gravitational accelerations. However, their limitations due to the low measurement rate and the existence of ambiguities in the raw sensor measurements call for hybridization of the Q-ACC with a classical one (e.g., electrostatic) with higher bandwidth. While previous hybridization studies have so far considered simple noise models for the Q-ACC and neglected the impact of satellite rotation on the phase shift of the accelerometer, we perform here a more advanced hybridization simulation by implementing a comprehensive noise model for the satellite-based Q-ACCs and considering the full impact of rotation, gravity gradient, and self-gravity on the instrument. We perform simulation studies for scenarios with different assumptions about quantum and classical sensors and satellite missions. The performance benefits of the hybrid solutions, taking the synergy of both classical and Q-ACCs into account, will be quantified. We found that implementing a hybrid accelerometer onboard a future gravity mission improves the gravity solution by one to two orders in lower and higher degrees. In particular, the produced global gravity field maps show a drastic reduction in the instrumental contribution to the striping effect after introducing measurements from the hybrid accelerometers.
KW - quantum sensors
KW - satellite gravity missions
KW - gravimetry
KW - hybrid accelerometers
KW - atom interferometry
UR - http://www.scopus.com/inward/record.url?scp=105003957955&partnerID=8YFLogxK
U2 - 10.1029/2024EA004187
DO - 10.1029/2024EA004187
M3 - Article
VL - 12
JO - Earth and Space Science
JF - Earth and Space Science
IS - 4
M1 - e2024EA004187
ER -