Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation |
| Seiten | 3069-3076 |
| Seitenumfang | 8 |
| ISBN (elektronisch) | 9781510817258 |
| Publikationsstatus | Veröffentlicht - 2015 |
| Veranstaltung | 28th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2015 - Tampa, USA / Vereinigte Staaten Dauer: 14 Sept. 2015 → 18 Sept. 2015 |
Abstract
GPS receivers typically have update rates of at least 1 Hz at which error characteristics are relatively well known. Therefore, the update rate is usually well below the bandwidth of the phase lock loop, which in theory, when neglecting the impact of atmospheric fluctuations or multipath, results in stochastically independent carrier phase measurements. However, for GPS receivers with update rates up to 100 Hz, the probability of correlations stemming from the receiver is severely increased. Consequently, its impact on high rate position, velocity and acceleration estimates need to be assessed. This contribution investigates the stochastic characteristics of GPS L1 double difference, GPS D1 Doppler and time-differenced GPS D1 Doppler measurements during static and kinematic periods, for measurement update rates from 0.1 Hz to 100 Hz. This information is used to set up a position, velocity, acceleration and time Extended Kalman Filter. Systematic errors during high dynamic stress situations are then characterized based on the comparison of the PVAT EKF solution against an IMU derived solution in a controlled environment of a shaking table. Finally, preliminary acceleration results from a short section of a flight trajectory are shown.
ASJC Scopus Sachgebiete
- Informatik (insg.)
- Angewandte Informatik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
- Informatik (insg.)
- Software
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Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation. 2015. S. 3069-3076.
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - High-Rate GPS Velocity and Acceleration Determination in Highly Dynamic Flights
AU - Bischof, C.
AU - Schön, S.
PY - 2015
Y1 - 2015
N2 - GPS receivers typically have update rates of at least 1 Hz at which error characteristics are relatively well known. Therefore, the update rate is usually well below the bandwidth of the phase lock loop, which in theory, when neglecting the impact of atmospheric fluctuations or multipath, results in stochastically independent carrier phase measurements. However, for GPS receivers with update rates up to 100 Hz, the probability of correlations stemming from the receiver is severely increased. Consequently, its impact on high rate position, velocity and acceleration estimates need to be assessed. This contribution investigates the stochastic characteristics of GPS L1 double difference, GPS D1 Doppler and time-differenced GPS D1 Doppler measurements during static and kinematic periods, for measurement update rates from 0.1 Hz to 100 Hz. This information is used to set up a position, velocity, acceleration and time Extended Kalman Filter. Systematic errors during high dynamic stress situations are then characterized based on the comparison of the PVAT EKF solution against an IMU derived solution in a controlled environment of a shaking table. Finally, preliminary acceleration results from a short section of a flight trajectory are shown.
AB - GPS receivers typically have update rates of at least 1 Hz at which error characteristics are relatively well known. Therefore, the update rate is usually well below the bandwidth of the phase lock loop, which in theory, when neglecting the impact of atmospheric fluctuations or multipath, results in stochastically independent carrier phase measurements. However, for GPS receivers with update rates up to 100 Hz, the probability of correlations stemming from the receiver is severely increased. Consequently, its impact on high rate position, velocity and acceleration estimates need to be assessed. This contribution investigates the stochastic characteristics of GPS L1 double difference, GPS D1 Doppler and time-differenced GPS D1 Doppler measurements during static and kinematic periods, for measurement update rates from 0.1 Hz to 100 Hz. This information is used to set up a position, velocity, acceleration and time Extended Kalman Filter. Systematic errors during high dynamic stress situations are then characterized based on the comparison of the PVAT EKF solution against an IMU derived solution in a controlled environment of a shaking table. Finally, preliminary acceleration results from a short section of a flight trajectory are shown.
UR - http://www.scopus.com/inward/record.url?scp=84975796923&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84975796923
SP - 3069
EP - 3076
BT - Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation
T2 - 28th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2015
Y2 - 14 September 2015 through 18 September 2015
ER -