In this second experiment of DSPP we were suposed to take a N point signal x(n) as the input and find Discrete Fourier Tramsform of the signal. Also we had to observe the effect of zero padding on the magnitude spectrum of the signal. We used C to write the code for the experiment. After obtaing the output with and without zero padding we learnt that with zero padding, the frequemcy spacing decreases, error in representation decreases and also there is an increase in the resolution and quality of the spectrum.
DISCRETE FOURIER TRANSFORM
Spacing between the values reduces as the value of N increases.
ReplyDeleteThis is because the frequency remains unaffected hence the spacing between the two points reduces as the value of N increases
DeleteOutput of the filter is Linear convolution of impulse response with the input of the signal.
ReplyDeleteYes it is the principal of convolution to find the output response for a particular input signal.
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