The domain can be viewed as a mapping of the f-k domain along lines of constant slowness (radial lines). It should come as no surprise that aliasing in the has features in common with aliasing in the f-k domain. Figure shows the amplitude spectrum of a single dipping event in the and domain. The most important point to note is that in the domain all the unaliased energy for a single dip lies along a single trace of constant slowness. The aliased energy lies along trajectories given by,
Where is the spatial sampling of the data and ptrue is the true dip.
Figure 1 Amplitude spectrum of a single dipping event in the domain. The unaliased energy lies along a single ``p trace.'' The aliased energy is along curved lines that are the equivalent of the ``wrapped lines'' in the f-k domain.