Algorithms

Fft algorithm in c

Fft algorithm in c
  1. What are algorithms of FFT?
  2. What is FFT coding?
  3. Which are the two algorithms in FFT?

What are algorithms of FFT?

The FFT algorithm is one of the heavily used in many DSP applications. It is used whenever the signal needs to be processed in the spectral, or frequency domain. It is so efficient to implement, that sometimes even FIR filtering functions are performed using an FFT.

What is FFT coding?

As the name implies, the Fast Fourier Transform (FFT) is an algorithm that determines Discrete Fourier Transform of an input significantly faster than computing it directly. In computer science lingo, the FFT reduces the number of computations needed for a problem of size N from O(N^2) to O(NlogN) .

Which are the two algorithms in FFT?

There are two main families of FFT algorithms: the Cooley-Tukey algorithm and the Prime Factor algorithm.

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