
%0 Journal Article
%A C. Bancroft, John 
%A Du, Xiang 
%A Lawton, Don 
%T A comparison between anisotropic reverse time and phase-shift plus interpolation prestack migrations for tilted anisotropic media
%J ASEG Extended Abstracts
%D 2006/03/01
%V 2006
%N 1
%P 1-3
%K 
%R https://doi.org/10.1071/ASEG2006AB006
%U https://www.publish.csiro.au/paper/ASEG2006AB006 
%X 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. 
