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Your search keyword '"Dolcetti, A"' showing total 14 results
Start Over Author "Dolcetti, A" Publication Type Conference Materials
14 results on '"Dolcetti, A"'

7. Data-driven reconstruction of rough surfaces from acoustic scattering.

Author

Johnson, Michael-David, Krynkin, Anton, Cuenca, Jacques, Alkmim, Mansour, De Ryck, Laurent, Yue Li, and Dolcetti, Giulio

Subjects
SOUND wave scattering, VIBRATION (Mechanics), SOUNDSCAPES (Auditory environment), SOUND systems, ACOUSTICAL engineering
Abstract

This work investigates the use of data-driven approaches for reconstructing rough surfaces from scattered sound. The proposed methods stands as alternatives to matrix inversion, which requires a linearisation of the dependence on the surface parameters. Here, a large dataset was formed from scattered acoustic field, estimated through the Kirchhoff Approximation. Limiting this work to the reconstruction of a static surface, K-Nearest Neighbors, Random Forests and a stochastic approach are compared to recover a parameterisation of surfaces using the scattered acoustical pressure as input. The models are then validated against a laboratory experiment alongside methods highlighted in Dolcetti et. al., JSV, 2021. The models are tested at a frequency that best fits the lab uncertainties, then tested on a broad frequency range. This scheme provides relatively accurate results in comparison to the approaches tested. Estimation errors as well as robustness in the presence of noise are discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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