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MathGroup Archive 2003

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Discrete Fourier Transform

  • To: mathgroup at smc.vnet.net
  • Subject: [mg43841] Discrete Fourier Transform
  • From: "Katie Neish" <cdneish at interchange.ubc.ca>
  • Date: Wed, 8 Oct 2003 04:47:59 -0400 (EDT)
  • Organization: ITServices, University of British Columbia
  • Sender: owner-wri-mathgroup at wolfram.com

Hello everyone,

I am attempting to perform a discrete Fourier transform on a time series
using Mathematica 4.0.  (I'd like to determine the period of the signal.)
Unfortunately, I noticed that I cannot control the frequency resolution of
this transform.  I also have no idea what units the frequency is in.

Do you know of any way to get around the problem?

Thanks so much.

Catherine Neish



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