Imaging and Computing Seminar
Giovanni Meles , Institute of Geophysics, ETH, Zurich, Switzerland
Title:
Recent Developments in GPR Full-waveform inversion
Abstract:
Ground Penetrating Radar (GPR) full-waveform inversion is an advanced,
high
resolution, non-intrusive technique for mapping permittivity and
conductivity distributions.
GPR full-waveform inversion can be formulated as a non-linear least
squares
problem in which the misfit between observed and modeled data is
minimized.
The talk will focus on recent developments in GPR waveform imaging.
Firstly, a general introduction to radar tomography will be given.
Secondly, a newly developed time-domain/frequency-domain waveform imaging
algorithm designed to tame the non-linearity problem associated with
inverse
scattering will be presented.
Finally, an effective computational method of sensitivity patterns
together
with formal resolution and Jacobian spectral analyses for model appraisal
will be discussed.
