HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Reports

A Time-Domain Derivation of Optimal and Suboptimal Kirchhoff Quantitative Migrations Via a Least-Squares Approach

Abstract : We develop in this paper a general methodology for the derivation of optimal and suboptimal quantitative migration formula from the data misfit function associated to a given forward modeling operator. By construction, these migrations take into account any feature and approximation which has been incorporated into the data misfit function, such as finite aperture, band limited source, surface boundary conditions, multishot data, etc...\\ \indent This methodology is then applied to the case where the forward modelling is made via the Born plus rays approximation and the reflectivity of the earth is represented by an array of diffracting points. This leads to the construction of efficient suboptimal quantitative Kirchhoff migration formula which provide a good restitution of amplitudes under a wide variety of circumstances (finite aperture, band limited source, etc...) and for a wide range of propagators (slowness background).
Document type :
Reports
Complete list of metadata

https://hal.inria.fr/inria-00073731
Contributor : Rapport de Recherche Inria Connect in order to contact the contributor
Submitted on : Wednesday, May 24, 2006 - 1:37:36 PM
Last modification on : Friday, February 4, 2022 - 3:13:38 AM
Long-term archiving on: : Sunday, April 4, 2010 - 11:56:25 PM

Identifiers

  • HAL Id : inria-00073731, version 1

Collections

Citation

Guy Chavent, René-Edouard Plessix. A Time-Domain Derivation of Optimal and Suboptimal Kirchhoff Quantitative Migrations Via a Least-Squares Approach. [Research Report] RR-2967, INRIA. 1996. ⟨inria-00073731⟩

Share

Metrics

Record views

54

Files downloads

94