Transmission loss measurement of an automotive dashboard by imaging techniques

Based on multi-arrays measurement, the Bayesian Focusing has been applied to measure the Transmission Loss (TL) on a 3D mesh representing the real geometry of an automotive Dashboard.

New Bayesian priors have been tested to enforce the spatial sparsity of the sound sources. As the sources are stationary in the frequency domain, a spatial prior defined on a large range of frequencies has been applied.

The work has been done with Trèves Group.

This research was supported by the LUG2 project funded by the Région Auvergne Rhône-Alpes and the BPI France (grant FUI22).