Homeomorphic transformation of 3D acoustic media for time imaging without a velocity model
Rapport de recherche , CRS4 - december 2009
I present the derivation of the formula approximating the time of flight of diff racted
acoustic signals propagating in a 3D non-homogeneous medium with a flat acquisition surface. The problem is fi rst solved in an auxiliary homogeneous medium. The resulting time of flight is then synchronized, via a homeomorphic transformation, to that of the real medium under investigation. No velocity model is required.
Références BibTex
@TechReport{Bon09,
author = {Bonomi, E.},
title = {Homeomorphic transformation of 3D acoustic media for time imaging without a velocity model},
institution = {CRS4},
month = {december},
year = {2009},
address = {Piscina Manna, Ed.1},
type = {Research Note},
keywords = {Velocity-independent time imaging, non-hyperbolic diffraction imaging, quasi-similar media, homeomorphic transform},
url = {https://publications.crs4.it/pubdocs/2009/Bon09},
}