Which is better DITFFT or DIFFFT?

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Re: DITFFT or DIFFFT

I feel both are equal
since in DIT FFT we need to perform Bit reversal in the first step
where as in DIF FFT we have to perfom Bit reversal at the last step.

Regards

Robin

Added after 2 minutes:

However you can serach for some papers on DIT FFT and DIF FFT which may give results in terms of time taken to perform DIT FFT and DIF FFT for the same signals
and conclude something from that.
 

Re: DITFFT or DIFFFT

This depends on your application an memory available.

(1) If you plan to use the fft for ponly peak finding, you use FFT which does not require bitereversing. You dont even bitreverse the output. Just find the peak and use a LUT for reverse mapping.

(2) If you are using FFT for further operations You may want to bit reverse the input.

Hope you got the idea.

BRM
 

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