Kirchhoff Imaging As A Tool For Avo/Ava Analysis

The methods of true-amplitude PreSDM and MZO can be used to perform an AVO/AVA analysis. By means of a<br>simple but illustrative example, we discuss the advantages and disadvantages of both methods. For the sake<br>of comparison, we have also considered the routinely applied method of deriving AVO information directly from<br>CMP gathers. For a good velocity model, AVO/AVA using both, PreSDM and MZO, yield quite accurate results<br>of comparable quality, even in the presence of caustics or diffractions. Apart from problems with aliasing, the<br>cheaper MZO seems to provide as valuable AVO information as PreSDM.