title: Modeling of wave propagation in inhomogeneous media.
abstract: We present a methodology providing a new perspective on modeling and inversion of wave propagation satisfying time-reversal invariance and reciprocity in generally inhomogeneous media. The approach relies on a representation theorem of the wave equation to express the Green function between points in the interior as an integral over the response in those points due to sources on a surface surrounding the medium. Following a predictable initial computational effort, Green's functions between arbitrary points in the medium can be computed as needed using a simple cross-correlation algorithm.
authors.affiliation: WesternGeco Oslo Technology Centre, Solbraveien 23, 1383 Asker, Norway. DManen@oslo.westerngeco.slb.com
authors.forename: Dirk-Jan
authors.initials: DJ
authors.lastname: van Manen
authors.forename: Johan O A
authors.initials: JO
authors.lastname: Robertsson
authors.forename: Andrew
authors.initials: A
authors.lastname: Curtis