Processing Data Flow
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Fig. 5.62 Multiple Huygens secondary sources (top) and the diffraction pattern they produce
Figure 5.63 shows the principles of migration based on diffraction summation. Figure 5.63(a) is a zero offset seismic section. (The trace interval is 25 m and constant velocity of 2,500 m/s). Figure 5.63(b) is the migrated version; the amplitude at point B on the hyperbola is mapped onto the apex A along the hyperbolic travel time equation.
Fig. 5.63 Migration example. (a) zero-offset section. (b) migration