When is anti-aliasing needed in Kirchhoff migration?: SEP--80

Abstract

We present criteria to determine when numerical integration of seismic data will incur operator aliasing. Although there are many ways to handle operator alias-ing, they add expense to the computational task. This is especially true in three dimensions. A two-dimensional Kirchhoff migration example illustrates that the image zone of interest may not always require anti-aliasing and that considerable cost may be spared by not incorporating it