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Measurement Analysis of Multiple MEMS Sensor Array

  • The low cost and small size of MEMS inertial sensors allows their combination into a multi sensor module in order to improve performance. However the different linear accelerations measured on different places on a rotating rigid body have to be considered for the proper fusion of the measurements. The errors in measurement of MEMS inertial sensors include deterministic imperfection, but alsoThe low cost and small size of MEMS inertial sensors allows their combination into a multi sensor module in order to improve performance. However the different linear accelerations measured on different places on a rotating rigid body have to be considered for the proper fusion of the measurements. The errors in measurement of MEMS inertial sensors include deterministic imperfection, but also random noise. The gain in accuracy of using multiple sensors depends strongly on the correlation between these errors from the different sensors. Although for sensor fusion it usually assumed that the measurement errors of different sensors are uncorrelated, estimation theory shows that for the combination of the same type of sensors actually a negative correlation will be more beneficial. Therefore we describe some important and often neglected considerations for the combination of several sensors and also present some preliminary results with regard to the correlation of measurements from a simple multi sensor setup.show moreshow less

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Metadaten
Author:Axel Sikora, Manuel Schwaab, Sergey Reginya, Evgeniy V. Abramov
Year of Publication:2017
ISBN:978-1-5386-0978-1
Language:English
Parent Title (English):24th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS)
First Page:392
Last Page:395
Document Type:Conference Proceeding
Institutes:Hochschule Offenburg / Bibliografie
Release Date:2018/01/19
Licence (German):License LogoEs gilt das UrhG
DOI:https://doi.org/10.23919/ICINS.2017.7995650