The nearest-neighbor method implements the interpolation by choosing
the value of the nearest
sample in the *k*_{z} domain as the interpolated value at a certain *k*_{z}.
Figure 1 shows the impulse response of three spikes
in an anelliptic anisotropic media using Stolt
migration and nearest-neighbor interpolation in the *k*_{z} domain. Many artifacts
appear at all depths. In the lower part of the section, the artifacts are even
stronger than the real events. These artifacts are caused by wraparound
of transformation between the time-space domain and the frequency-wavenumber domain.

11/16/1997