f Different simulations of the kinematics of time migration - A Review

There are many applications that require simulation of the kinematics of time-migration. Time-demigration, for example, is an important step in map migration and stacking velocity/traveltime inversion. Mapping of well trajectories from the depth domain into the time-migrated block is another [4]. We compare the simplistic techniques of vertical stretch and image ray mapping with more sophisticated methods that accurately simulate the time-migration operator used. We simulate Kirchhoff-type time-migration analytically and finite difference time-migration by anisotropic ray tracing in the time-migrated domain.