Describe FFT: Properties/Frequency Needed

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  • Thread starter Thread starter mgberlin
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    Fft
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Discussion Overview

The discussion revolves around understanding the properties and frequency characteristics of a fast Fourier transform (FFT) depicted in a linked image. Participants seek clarification on the nature of the FFT and its applications, particularly in relation to numerical computations and specific functions like the Bessel function.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant requests a description of the FFT shown in the linked image, specifically asking about its properties and frequency.
  • Another participant questions the absence of axes in the image, expressing confusion about what is being represented.
  • A third participant identifies the FFT as a 2D FFT but admits uncertainty regarding its meaning.
  • A later post inquires about utilizing libraries in C++ for computing the discrete Fourier transform (DFT) and seeks assistance with applying FFT to a numerical transformation of the Bessel function.

Areas of Agreement / Disagreement

The discussion does not present a consensus, as participants express varying levels of understanding and seek clarification on different aspects of the FFT.

Contextual Notes

Some participants appear to have different levels of familiarity with FFT concepts, and there are unresolved questions regarding the interpretation of the image and the specific applications mentioned.

Who May Find This Useful

This discussion may be useful for individuals interested in signal processing, numerical methods, or those seeking to understand the application of FFT in computational contexts.

mgberlin
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Could someone possibly describe this http://home.bak.rr.com/berlin/088821368-guess1.jpg FFT. I need to know the properties and frequency. Thanks for anyone's time who helps.

(BTW, if this is in the wrong forum, I could use some redirection).
 
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That's a fast Fourier transform?

I don't see any axes... what are we looking at? :confused:
 
Psst... it's a 2D FFT. (I don't know what it means though.)

- Warren
 
how can i make use of libraries available to do those in C++ to compute DFT

also I would be so grateful if you could help me for numerical fourir transform of bessel function using FFT
 

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