UV_SMOOTH
[CLEAN\]UV_SMOOTH Nc [/ASYMMETRIC] [/FILE FileIn FileOut]
Smooth by NC channels a UV data set. UV_SMOOTH differs from UV_COMPRESS be-
cause it keeps the original spectral sampling. The resulting UV data is thus
oversampled by NC channels.
Unless the /ASYMMETRIC option is present, the smoothing is symmetric, to en-
sure that the spectral sampling is preserved. This is implicit when Nc is
odd, but for even values of Nc, it is done by smoothing by Nc+1 channels,
and giving the edge channels of the smoothing kernel a half-weight. The ef-
fective bandwidth of each smoothed channel is still Nc times the original
one.
As a result, UV_SMOOTH 2 is equivalent to a Hanning smoothing.
With no /FILE option, the current UV table obtained by READ UV is resampled.
All further UV commands work on the "Resampled" UV table. The "Resampled"
UV table is a simple copy of the original one after a READ UV command, or
after a UV_RESAMPLE or UV_COMPRESS commands with no arguments and no op-
tions.
With the /FILE option, the UV data is read from file FileIn and the resam-
pled output is written in file FileOut.
Subsections