
TY  - JOUR
A1  - C. Bancroft, John 
A1  - Du, Xiang 
A1  - Lawton, Don 
T1  - A comparison between anisotropic reverse time and phase-shift plus interpolation prestack migrations for tilted anisotropic media
JF  - ASEG Extended Abstracts
JO  - ASEG Extended Abstracts
Y1  - 2006
VL  - 2006
IS  - 1
SP  - 1
EP  - 3
KW  - 
UR  - https://doi.org/10.1071/ASEG2006AB006 
N2  - Two 2D anisotropic prestack depth migration algorithms that use wavefield extrapolation are evaluated for tilted transversely isotropic media (TTI). The first method is anisotropic phase-shift-plus-interpolation (A-PSPI) that is based on an analytical solution of frequency-dispersion enabling the use of an arbitrary distribution of velocities and anisotropic parameters. The second method is anisotropic reverse-time (A-RT) that uses the full wave equation. we evaluate the accuracy and efficiency of there algorithms. Examples are presented that use numerica and physically modelled data along with a structurally complex real data example. Both A-PSPI and A-RT have excellent performance with A-RT maintaining the advantage of using the full wave equation. 
ER  -

