P080 ANTIALIASED 3D TRUE AMPLITUDE COMMON DIFFRACTION ANGLE MIGRATION BY REGULARIZATION IN THE DIP DOMAIN Abstract 1 Within the framework of the development of a 3D Kirchhoff pre-stack true amplitude time migration this paper deals with the correction of irregular sampling in the acquisition geometry and the problems due to the migration operator aliasing phenomena. In our approach the sampling of traces in the acquisition domain is translated into a sampling in dip illumination at each image point. The correction of the sampling irregularities is then accomplished by defining weights for the traces in the migration kernel from the triangulation