Smoothing, 5 smoothing – BUCHI NIRCal User Manual
Page 105

Chemometrics
NIRCal 5.5 Manual, Version A
105
Type
This pretreatment is not depending on the calibration wavelengths.
3.5.5 Smoothing
Smoothing
Smoothing is used to reduce the noise level in spectra. However when using smoothing the spectral
resolution will be affected. The smoothing function should be chosen according to the original data.
NOTE
Please choose the smoothing function carefully. No loss of spectral information should appear.
Overview of all Smoothing pretreatments:
Original Spectra
Average 3 points
Average 9 points