DFT

In this experiment DFT of 4 and 8 point signal,I also studied it was concluded effect of zero padding on magnitude spectrum and the length of input signal and signal values were taken from user were calculated X[K] by DFT and x(n) by IDFT and plotted magnitude spectrum of the signal. Change in 4 point signal by appending 4 zeros at end.Change was observed in X[K] and magnitude response. Hence it was conclude that as the number of points increases, the resolution of magnitude spectrum increases.

DFT

IDFT