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FT Digital Filtering: Simulating Fourier Transform Apodization via Excel

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Ken Overway

Bridgewater College, Bridgewater, VA 22812

J. Chem. Educ., 2008, 85 (8), p 1151

DOI: 10.1021/ed085p1151

Publication Date (Web): August 1, 2008

Section:

History, Education, and Documentation

Abstract

Presents an Excel spreadsheet that allows the user to change the parameters of a simulated digital filter and see the effect it has on a noisy signal. The spreadsheet consists of two sheets that demonstrate the efficacy of a Fourier Transform frequency-domain square-wave apodization filter on a signal containing environmental or a white noise source.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Analytical Chemistry

Keywords (Feature):

JCE WebWare: Web-Based Learning Aids

Keywords (Pedagogy):

Computer-Based Learning

Keywords (Subject):

Fourier Transform Techniques

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Citing Articles

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

A Spreadsheet Exercise To Teach the Fourier Transform in FTIR Spectrometry
Brent Shepherd and Michael K. Bellamy
Journal of Chemical Education2012 89 (5), 681-682
- A Spreadsheet Exercise To Teach the Fourier Transform in FTIR Spectrometry
  Brent Shepherd and Michael K. Bellamy
  Journal of Chemical Education2012 89 (5), 681-682
  A spreadsheet exercise is presented that is designed to complement descriptions of Fourier transform infrared spectrometry (FTIR) found in some analytical chemistry textbooks. Students can convert spectra collected with an FTIR spectrometer into ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
Fourier Transforms Simplified: Computing an Infrared Spectrum from an Interferogram
Quentin S. Hanley
Journal of Chemical Education2012 89 (3), 391-396
- Fourier Transforms Simplified: Computing an Infrared Spectrum from an Interferogram
  Quentin S. Hanley
  Journal of Chemical Education2012 89 (3), 391-396
  Fourier transforms are used widely in chemistry and allied sciences. Examples include infrared, nuclear magnetic resonance, and mass spectroscopies. A thorough understanding of Fourier methods assists the understanding of microscopy, X-ray diffraction, ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links