Издание: EAGE. Saint Petersburg 2020. Geosciences: Converting Knowledge into Resources (Saint Petersburg, Russia, 6-9 April 2020)
Место издания: СПб.
, Год издания: 2020
Страницы: 1-5
Аннотация
One of the statements of the inverse dynamic seismic problem is to find a velocity model of an elastic medium from the data recorded during field work. To solve this problem, the full waveform inversion method is used, which consists in minimizing the functional that measures the difference between observed seismic data and modelled ones. Minimization is reduced to an iterative process, which involves solving an algebraic system of equations. The matrix of this system turns out to be ill-conditioned. Thus, for its inversion it is necessary to apply regularization, which is based on truncated SVD.
