Vibration Data Processing for Bedload Monitoring in Underwater Environments

Gabriel Vasile (1)

1 GIPSA-SIGMAPHY - GIPSA - Signal Images Physique

This paper proposes a novel data processing framework dedicated to bedload monitoring in underwater environments. After calibration, by integration the of total energy in the nominal bandwidth, the proposed experimental setup is able to accurately measure the mass of individual sediments hitting the steel plate. This requires a priori knowledge of the vibration transients in order to match a predefined dictionary. Based on unsupervised hierarchical agglomeration of complex vibration spectra, the proposed algorithms allow accurate localization of the transients corresponding to the shocks created by sediment impacts on a steel plate.

Mots clés: hierarchical agglomeration; complex vibration spectra; bedload monitoring; underwater acoustics

Domaines: Traitement du signal et de l'image [eess.SP]

Gabriel Vasile. Vibration Data Processing for Bedload Monitoring in Underwater Environments. Remote Sensing, 2020, 12 (17), pp.2797. ⟨10.3390/rs12172797⟩. ⟨hal-03004355⟩