On the Interpretation of 3D Gyroscope Measurements
Joint Authors
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-22
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We demonstrate that the common interpretation of angular velocities measured by a 3D gyroscope as being sequential Euler rotations introduces a systematic error in the sensor orientation calculated during motion tracking.
For small rotation angles, this systematic error is relatively small and can be mistakenly attributed to different sources of sensor inaccuracies, including output bias drift, inaccurate sensitivities, and alignments of the sensor sensitivity axes as well as measurement noise.
However, even for such small angles, due to accumulation over time, the erroneous rotation interpretation can have a significant negative impact on the accuracy of the computed angular orientation.
We confirm our findings using real-case measurements in which the described systematic error just worsens the deleterious effects typically attributed to an inaccurate sensor and random measurement noise.
We demonstrate that, in general, significant improvement in the angular orientation accuracy can be achieved if the measured angular velocities are correctly interpreted as simultaneous and not as sequential rotations.
American Psychological Association (APA)
Stančin, Sara& Tomažič, Sašo. 2018. On the Interpretation of 3D Gyroscope Measurements. Journal of Sensors،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1202329
Modern Language Association (MLA)
Stančin, Sara& Tomažič, Sašo. On the Interpretation of 3D Gyroscope Measurements. Journal of Sensors No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1202329
American Medical Association (AMA)
Stančin, Sara& Tomažič, Sašo. On the Interpretation of 3D Gyroscope Measurements. Journal of Sensors. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1202329
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1202329