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  4. Improving the accuracy of low-cost GNSS by fusion with inertial and magnetic sensors in alpine ski racing
 
conference paper not in proceedings

Improving the accuracy of low-cost GNSS by fusion with inertial and magnetic sensors in alpine ski racing

Fasel, Benedikt  
•
Spörri, Jörg
•
Aminian, Kamiar  
2016
34th International Conference on Biomechanics in Sports

For analysing performance in alpine ski racing, an accurate estimation of the skier’s centre of mass trajectory and speed is indispensable. However, the sole use of low-cost GNSS might not be accurate enough to detect meaningful differences. The aim of this study was to introduce a new system that can improve the accuracy of a low-cost GNSS to an acceptable level. To this end, the data obtained by low-cost GNSS was fused with data form inertial sensors and position information of permanent magnets buried into the snow surface along the ski track. This fusion improved the system’s accuracy from 2m to 0.5m. Despite the added sensing technologies, the system remained simple and was easy to use. Further improvements are possible and a technical validation of the system could be a major aim for the future.

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Type
conference paper not in proceedings
Author(s)
Fasel, Benedikt  
Spörri, Jörg
Aminian, Kamiar  
Date Issued

2016

Subjects

inertial sensors

•

magnetic sensors

•

GNSS

•

sensor fusion

•

alpine skiing

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMAM  
Event nameEvent placeEvent date
34th International Conference on Biomechanics in Sports

Tsukuba, Japan

July 18-22, 2016

Available on Infoscience
June 15, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/126649
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