Abstract
In the context of cyber-physical systems the accuracy of a growing number of sensor systems plays an important role in data fusion and feature extraction. But the quality of the fusion of different sensor types and even multiple sensor devices directly depends on the sampling time information of the measured sensor samples. Due to potential clock drifts of the embedded sensor systems the fusion results of different sensor samples get worse. In this paper, we present an approach for an accurate sample time reconstruction independent of the actual clock drift with the help of an internal sensor counter, as it is already available in modern MEMS sensor systems. The presented approach focuses on calculating accurate timestamps with and without using the sensor FIFO interface.
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Our approach is also robust against variable clock drift to some extent, but this is not studied in this paper.
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Stieber, S., Dorsch, R., Haubelt, C. (2016). Accurate Sample Time Reconstruction for Sensor Data Synchronization. In: Hannig, F., Cardoso, J.M.P., Pionteck, T., Fey, D., Schröder-Preikschat, W., Teich, J. (eds) Architecture of Computing Systems – ARCS 2016. ARCS 2016. Lecture Notes in Computer Science(), vol 9637. Springer, Cham. https://doi.org/10.1007/978-3-319-30695-7_14
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DOI: https://doi.org/10.1007/978-3-319-30695-7_14
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-30694-0
Online ISBN: 978-3-319-30695-7
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