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Ray-Born Synthetic Seismograms in Complex Structures Containing Scatterers
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 2nd International Congress of the Brazilian Geophysical Society, Oct 1991, cp-316-00145
Abstract
The method based on a hybrid combination of the ray theory with the Born approximation can be used to compute synthetic seismograms in complex laterally varying layered structures containing small sca.tterers. The scatterers can be combined to form objects of a complex shape. The wave field in the background laterally varying layered strudure is computed by the ray metbod and the scattered wave field by the Born approximation. A computer program package designed for such hybrid ray-Born computations in 2-D models is briefly described and numerical applications are presented. The ray-Born numerical modelling of seismic wave fields considerably extends the possibilities of the ray modelling.