MBTT Inversion with a Poor Initial Velocity Background: Optimization Strategies? Density of Shots?

Abstract : The Migration-Based TravelTime (MBTT) reformulation of the classical least-squ- ares waveform inversion problem enlarges the attraction domain for the global minimum of the data misfit function, but does not make it convex. Systematic experimentation on the possible strategies to perform the minimizat- ion of the criterion with respect to the new MBTT unknowns (the propagator and the time reflectivity) is presented on a non-layered synthetic example with a finite-difference acoustic simulator. The influence of the amount of available data on the enlargement of the attraction domain is also investigated.
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Rapport
[Research Report] RR-3657, INRIA. 1999
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https://hal.inria.fr/inria-00073016
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Soumis le : mercredi 24 mai 2006 - 11:36:11
Dernière modification le : vendredi 25 mai 2018 - 12:02:03
Document(s) archivé(s) le : dimanche 4 avril 2010 - 23:31:26

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François Clément. MBTT Inversion with a Poor Initial Velocity Background: Optimization Strategies? Density of Shots?. [Research Report] RR-3657, INRIA. 1999. 〈inria-00073016〉

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