1887

Abstract

P271 Wide Angle FD and FFD Migration Using Complex Padé Approximations D. Amazonas (UFPa) J.C. Costa* (UFPa) R. Pestana (UFBa) & J. Schleicher (Campinas State University (Unicamp)) SUMMARY Seismic migration by downward continuation using the one-way wave equation approximations has two shortcomings: imaging steep dip reflectors and handling evanescent waves. Complex Padé approximations allow a better treatment of evanescent modes stabilizing finite-difference migration without requiring special treatment for the migration domain boundaries. Imaging steep dip reflectors can be improved using several terms in the Padé expansion. We discuss the implementation and evaluation of wide-angle complex Padé approximations for finite-difference and

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201401918
2007-06-11
2020-07-03
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201401918
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error