Prestack exploding reflector model and WEMVA. Prestack exploding-reflector model cmp depth subsurface-offset migration with low velocity cmp time cmp.

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Presentation transcript:

Prestack exploding reflector model and WEMVA

Prestack exploding-reflector model cmp depth subsurface-offset migration with low velocity cmp time cmp time 0.0 S, R – areal source and shotG – Green’s function I s,r – prestack image

Prestack exploding-reflector model One-way Areal shot mig. cmp depth subsurface-offset 0.0 t t cmp

Crosstalk - Random phase encoding Areal shotAreal source t t 0.0 t t cmp

depth subsurface-offsetcmpsubsurface-offset One-way Areal shot mig. (z,x,w) phase-encoding Crosstalk

Wemva – forward modeling

Wemva – adjoint

Prestack exploding reflector model Migration of phase encoded modeling Adjoint of imaging operator

Wemva - Objective function

Wemva – forward modeling Shen, 2004

Wemva – adjoint Shen, 2004