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Apodization function

Term · Chemistry · MLC-T-CHM-000738

A mathematical weighting function applied to an interferogram in Fourier transform spectroscopy to minimize artifacts caused by the finite length of the measured data. These functions, such as triangular, Hamming, or Blackman, smoothly reduce the amplitude of the interferogram towards its ends. The choice of function influences the trade-off between spectral resolution and the suppression of sidelobes in the transformed spectrum.

Table 1. Record
IdentifierMLC-T-CHM-000738
FieldChemistry
SubjectAnalytical Chemistry
Synonymswindow function
ReferencesPAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 652 (https://doi.org/10.1515/pac-2019-0203)
See alsoApodization
Record as JSON 
{
  "id": "MLC-T-CHM-000738",
  "term": "Apodization function",
  "field": "Chemistry",
  "definition": "A mathematical weighting function applied to an interferogram in Fourier transform spectroscopy to minimize artifacts caused by the finite length of the measured data. These functions, such as triangular, Hamming, or Blackman, smoothly reduce the amplitude of the interferogram towards its ends. The choice of function influences the trade-off between spectral resolution and the suppression of sidelobes in the transformed spectrum.",
  "synonyms": [
    "window function"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "apodization"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 652 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/apodization-function/"
}

Record 788 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.