If an NMO-type operator is applied on regularly sampled but spatially aliased data, we can enhance it with an efficient antialiasing technique, based on low-pass time filtering Bevc and Claerbout (1992); Claerbout (1992a); Lumley et al. (1994).
Without going into implementation details, we can mention that the interface for initializing anti-aliased NMO is slightly different from that of nnnmo, but the operator interface is very similar. At the initialization step, the anti-aliased NMO needs a spatial sampling interval and a function to compute the slope of the time transform function. The operator function for antialiased NMO calls a ``triangular'' interpolation routine, which invokes multiple chaining of interpolation operators.