Monday 25 April 2016

DFT:
DFT (Discrete Fourier Transform) is carried out to overcome the limitation ofFourier series as well as DTFT . DFT is used to analyse aperiodic signals. Ideally, the spectrum of DFT is discrete and also infinite but we calculate it only for one period of the signal values. For the same signal values with different periodic sequences, the output values of the bigger periodic sequence contains all the values of the output signal obtained from the smaller periodic sequence. Moreover, the values remain same for same period even if the number of samples increases.

 here is the link of experiment.
https://drive.google.com/drive/folders/0BwJUrR8ne7NkS2NYWDFBZktPLWs

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