In this experiment, we designed a digital FIR filter using Frequency Sampling Method (FSM) using Scilab. We plotted the Magnitude and phase spectrum for two cases of LPF and HPF. By taking the input specification we designed high pass and low pass filter & we observed the phase as well as magnitude spectrum. We noticed that discontinuity in phase plot between lobes and when the phase spectrum goes out of the range of -pi to pi. Phase varies linearly with frequency, hence output will not be distorted.
Frequency sampling technique is one of the simplest techniques to design a FIR filter
ReplyDeleteThis is very easy technique.
ReplyDeleteYes it is.
DeleteEasy technique when calculations are taken into account.
ReplyDeleteBetter than window method
DeleteVery easy compared to window.
DeleteDiscontinuity is observed in phase plot between lobes and also when the phase spectrum goes out of the range of -pi to pi.
ReplyDeleteYes.
DeleteWe can find the order of the filter by adaptive technique of constantly checking the response.
ReplyDeleteVery informative
ReplyDeleteWhat value of sampling frequency was taken?
ReplyDelete