The width of the desired filter must be greater than THREE TIMES the average sample interval of the raw data, so that the filter can at least operate on three data points.
The smothing operator is applied AFTER the data have been culled and decimated.
If the data are smoothed, then all cross-correlation calculations in the COMPOSITE and SPLICE will use the smoothed data. If no smoothing is selected, then the cross-correlations are based on the raw data (after culling and decimating, if selected).
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updated: 30 April, 1996
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Bill Kamp