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Review of different expressions for the extended Born approximate inverse operatorNormal access

Authors: H.J. Chauris and E. Cocher
Event name: 80th EAGE Conference & Exhibition 2018 Workshop Programme
Session: WS07: Seismic Imaging with Ray and Waves - Where do we stand? Part II: Imaging
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201801908
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 652.63Kb )
Price: € 20

Several authors have published different expressions for the pseudo-inverse operator in the case of the subsurface extended Born modelling. We review here the principles to establish such inverse operators and show the close relationships between them. With one of the strategy, we then illustrate how triplicated wave fields can be properly handled and how the inverse operator can be incorporated as a preconditioner for least-squares migration in the extended domain.

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