TY - JOUR
T1 - An introduction to this special section: Full-waveform inversion and the way forward
AU - Guitton, Antoine
AU - Alkhalifa, Tariq
N1 - KAUST Repository Item: Exported on 2020-04-23
PY - 2013/1/1
Y1 - 2013/1/1
N2 - The practice of updating an Earth model and generating synthetic data from it that one can compare to the field data is an appealing concept. If the two data sets match, using some measure of misfit, one might have found a good Earth model. Radiation patterns show the amplitude of the partial derivative wavefield with scattering angle for a model-parameter perturbation, keeping the other parameters fixed. The second theme presents research directions where the authors try to combine the robustness of existing wave-equation-migration velocity analysis (WEMVA) techniques with FWI. This combination makes sense: unlike FWI, WEMVA methods do not suffer from the local minima issue and, thus, can start from a relatively poor initial model, while yielding improved low-resolution models needed for FWI.
AB - The practice of updating an Earth model and generating synthetic data from it that one can compare to the field data is an appealing concept. If the two data sets match, using some measure of misfit, one might have found a good Earth model. Radiation patterns show the amplitude of the partial derivative wavefield with scattering angle for a model-parameter perturbation, keeping the other parameters fixed. The second theme presents research directions where the authors try to combine the robustness of existing wave-equation-migration velocity analysis (WEMVA) techniques with FWI. This combination makes sense: unlike FWI, WEMVA methods do not suffer from the local minima issue and, thus, can start from a relatively poor initial model, while yielding improved low-resolution models needed for FWI.
UR - http://hdl.handle.net/10754/593383
UR - http://library.seg.org/doi/abs/10.1190/tle32091026.1
UR - http://www.scopus.com/inward/record.url?scp=84900569123&partnerID=8YFLogxK
U2 - 10.1190/tle32091026.1
DO - 10.1190/tle32091026.1
M3 - Article
AN - SCOPUS:84900569123
SN - 1070-485X
VL - 32
SP - 1026
EP - 1028
JO - The Leading Edge
JF - The Leading Edge
IS - 9
ER -