BFILT N1 N2 N3 LOW1 LOW2 HIGH1 HIGH2 SET -- Band-pass filters spectra
Parameters
N1, N2 -- Range of spectra to filter
N3 -- First output slot
LOW1, LOW2 -- Low pass rises from zero transmission at LOW1 to full
at LOW2. If LOW2<LOW1, no low frequency cutoff applied.
Rises as a cosine between the two limits.
HIGH1, HIGH2 -- As for low pass but now starts to cut at HIGH1,
and reaches zero transmission by HIGH2
SET -- If a mask is applied the spectra are linearly interpolated
over masked regions.
This command belongs to the classes: arithematic and manipulation .