Matlab Code for Time-Frequency Transformation

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Discussion Overview

The discussion revolves around the implementation of Fourier transforms in Matlab, specifically addressing the relationship between time and frequency domains. Participants explore how these transforms are represented in different texts, including a reference to a specific book on nonlinear fiber optics.

Discussion Character

  • Technical explanation, Conceptual clarification, Homework-related

Main Points Raised

  • One participant expresses confusion about the Fourier transform and its inverse, seeking clarification on how to implement this in Matlab.
  • Another participant confirms that the transforms are indeed inverses, noting that the placement of constants like 2π can vary across different definitions.
  • A request for a practical example of the implementation in Matlab is made by the original poster.
  • A link to an external resource on Fourier transforms is provided as a reference for further information.

Areas of Agreement / Disagreement

Participants generally agree on the inverse relationship between time and frequency transforms, but there is no consensus on the specific implementation details in Matlab or the definitions used in different texts.

Contextual Notes

There may be limitations related to the definitions of the Fourier transform being referenced, as well as the specific implementation in Matlab that could depend on the context of use.

eahaidar
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Hello everyone.
Sorry if the question is silly, but in really need to know something.
We know that The Fourier transform of time is frequency and the inverse of frequency is time.
In Matlab can anyone tell me how to write it ? Because in the book Non linear fiber optics by Agrawal we found that they used the opposite of what I just said any ideas ? Thank you
 
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The transforms are inverses; one goes time->frequency, the inverse goes frequency->time.

Note that there are several ways to write the transforms, varying where the 2*pi is placed. So compare the definitions being used when comparing different texts/programs.
 
Thank you for the reply
So can u give me an example ?
 

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