Reconstruction of a depth velocity model by full waveform inversion

K. G. Gadylshin, V. A. Cheverda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The consecutive numerical method is implemented for construction of a depth velocity model by full waveform inversion. The inverse dynamic seismic problem is reduced to finding the minimum point of the objective functional characterizing the mean square deviation of the recorded data from those calculated for the current model of the medium. A distinctive feature of the proposed approach is decomposition of the model space into two components: a smoothly varying propagator (macrovelocity model) and a rapidly spatially varying component called a reflector. The minimum point is calculated in sequence in these two subspaces. This paper reports the obtained data on numerical experiments related to reconstruction of the Marmoussi2 velocity model using a real frequency range and a source–receiver offset.

Original languageEnglish
Pages (from-to)1233-1237
Number of pages5
JournalDoklady Earth Sciences
Volume476
Issue number2
DOIs
Publication statusPublished - 1 Oct 2017
Externally publishedYes

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