Том: 11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, July 20-25, 2014, Barcelona, Spain
Том: II-IV
, Год издания: 2014
Многотомное издание: 11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, July 20-25, 2014, Barcelona, Spain
Место издания: Barcelona
Страницы: 182-190
Аннотация
The common knowledge now is that standard least squares Full Waveform Inversion is unable to reconstruct macrovelocity for reasonable frequency band of input data but claims unpractically low time frequencies. There are a range of different approaches to overcome this weakness and among them Migration Based Travel Time reformulation of the cost function. Here we compare standard least squares Full Waveform Inversion with its Migration Based Travel Time reformulation. Our computations demonstrate the reliable reconstruction of the smooth velocity component by full waveform inversion in migration based travel-time formulation
