Difference between revisions of "Dictionary:Reverse time migration"
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Backward propagation of the wavefield in time. Often uses a finite-difference approximation to the wave equation. Time samples from a seismic section are used as the surface boundary condition for a wave-equation extrapolator and successive time samples are used until the surface is reached, when the image is completed. See McMechan (1983). | Backward propagation of the wavefield in time. Often uses a finite-difference approximation to the wave equation. Time samples from a seismic section are used as the surface boundary condition for a wave-equation extrapolator and successive time samples are used until the surface is reached, when the image is completed. See McMechan (1983). | ||
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Latest revision as of 16:10, 27 July 2017
Backward propagation of the wavefield in time. Often uses a finite-difference approximation to the wave equation. Time samples from a seismic section are used as the surface boundary condition for a wave-equation extrapolator and successive time samples are used until the surface is reached, when the image is completed. See McMechan (1983).