Prestack exploding reflector modeland WEMVA

Prestack exploding-reflector modelcmp

dep

thsubsurface-offset

migration with low velocity

cmp

tim

e

cmp

tim

e

0.0

0.0

S, R – areal source and shot G – Green’s function Is,r – prestack image

Prestack exploding-reflector model

One-way Areal shot mig.

cmp

dept

h

subsurface-offset

0.0t t

0.0

cmpcmp

Crosstalk - Random phase encoding

Areal shot Areal sourcet t 0.0

0.0

0.0t t

0.0

cmpcmp

cmp

dep

th

subsurface-offsetcmp subsurface-offset

One-way Areal shot mig. 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