1 Integer Fast Fourier Transform Introduction Integer fast Fourier transform (IntFFT) is an integer approximation of the DFT [I-4]. The transform can...

I have understood the lifting structure and to calculate FFt results based on Lifting scheme. But I am not able to implement the same using C code. Here if I use only integer values of input and lifting coefficients to compute FFT. we are not getting exact result as in normal FFT values.Error is building up in every stage of FFT.Could you suggest how to compute integer FFT with an example.