Idft

What is going wrong with my IDFT program? [closed]

What is going wrong with my IDFT program? [closed]
  1. Is DFT and Idft same?
  2. Can we use FFT for Idft?
  3. What is Idft in signal processing?

Is DFT and Idft same?

DFT (Discrete Fourier Transform) is a practical version of the DTFT, that is computed for a finite-length discrete signal. The DFT becomes equal to the DTFT as the length of the sample becomes infinite and the DTFT converges to the continuous Fourier transform in the limit of the sampling frequency going to infinity.

Can we use FFT for Idft?

The same FFT algorithm can be adapted in many ways to compute IDFT in a faster way.

What is Idft in signal processing?

IFFT System object™ computes the inverse discrete Fourier transform (IDFT) of the input. The object uses one or more of the following fast Fourier transform (FFT) algorithms depending on the complexity of the input and whether the output is in linear or bit-reversed order: Double-signal algorithm.

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