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In Figure a, a crosswell data set has been windowed,
to provide a small test data set and subsampled using .The result of interpolation from the subsampled version is shown in
Figure e.
For comparison between the original and interpolated,
Figure shows
the original data set before subsampling and the difference with the
interpolated.
Figure c and d are the spectrum of the original data and
of the interpolated from the subsampled version.
These show almost the same pattern except that a positive dip event
is very weakly interpolated, but this is because the positive dip component
in the spectrum of the subsampled data set is very weak.
**cwlace
**

Figure 4 (a) A real crosswell data set which is subsampled with 2 feet sampling intervalfrom Figure 6a where sampling interval is 1 foot.
(b) the spectrum of the crosswell data set
(c) the dips picked from slant stack
(d) the spectrum of the prediction-error filters
(e) the interlaced data set ( sampling interval is 1 foot )
(f) the spectrum of the interlaced data set.

**cwlacediff
**

Figure 5 (a) A real crosswell data set
(b) the difference between the original data and interpolated data set ( = Figure 6a - Figure 5e )
(c) the spectrum of the original data
(d) the spectrum of the interpolated data set from the subsampled version.

** Next:** REGRIDDING IRREGULARLY SAMPLED TRACES
** Up:** NUMERICAL EXAMPLES
** Previous:** Synthetic data
Stanford Exploration Project

11/18/1997