Extension to 3D data

With 3D data, the ADCIGs are function of the reflection azimuth as well as the aperture angle (, ). The ADCIGs, therefore, are three dimensional and even for the specular multiples the Radon transform will also be three-dimensional. For the diffracted multiples, the apex shift is a function of both the aperture angle and the reflection azimuth and the Radon transform would be more complicated. This issue will be addressed in Chapter .