13 citations · 13 across the 1 of their papers we have counts for
6 papers
Polynomial-reproducing spline spaces from fine zonotopal tilings
Hélène Barucq, Henri Calandra, Julien Diaz +1
Given a point configuration A, we uncover a connection between polynomial-reproducing spline spaces over subsets of conv(A) and fine zonotopal tilings of the zonotope Z(V) associat…
Full Reciprocity-Gap Waveform Inversion in the frequency domain, enabling sparse-source acquisition
Florian Faucher, Giovanni Alessandrini, Hélène Barucq +3
The quantitative reconstruction of sub-surface Earth properties from the propagation of waves follows an iterative minimization of a misfit functional. In marine seismic exploratio…
Eigenvector Model Descriptors for Solving an Inverse Problem of Helmholtz Equation: Extended Materials
Florian Faucher, Otmar Scherzer, Hélène Barucq
We study the seismic inverse problem for the recovery of subsurface properties in acoustic media. In order to reduce the ill-posedness of the problem, the heterogeneous wave speed…
Signal and noise in helioseismic holography
Laurent Gizon, Damien Fournier, Dan Yang +2
Helioseismic holography is an imaging technique used to study heterogeneities and flows in the solar interior from observations of solar oscillations at the surface. Holograms cont…
Sensitivity kernels for time-distance helioseismology: efficient computation for spherically-symmetric solar models
Damien Fournier, Chris S. Hanson, Laurent Gizon +1
The interpretation of helioseismic measurements, such as wave travel-time, is based on the computation of kernels that give the sensitivity of the measurements to localized changes…
Atmospheric radiation boundary conditions for high frequency waves in time-distance helioseismology
Damien Fournier, Michael Leguebe, Chris S. Hanson +4
The temporal covariance between seismic waves measured at two locations on the solar surface is the fundamental observable in time-distance helioseismology. Above the acoustic cut-…