This is the second method of FIR Filter design. The steps of finding the frequency response of the input is same as that of the windowing method. Then, DFT of the frequency response is calculated. The values are adjusted depending on the type of filter i.e. low pass filter or high pass filter. Inverse of the frequency sampled signal gives the desired filter design. The designing and plotting of magnitude response was done on Scilab.
FSM is computationally efficient.
ReplyDeleteThis is simplest method for designing FIR filter
ReplyDeleteIs it efficient?
ReplyDeleteIts simpler to implement but not that efficient if compared to other filter design techniques because FSM technique uses approximation.
DeleteThis method is simpler
ReplyDeleteWhat were the input parameters?
ReplyDeleteType of the FIR Filter, Filter order and cutoff frequency.
DeleteDiscontinuity is observed in phase plot between lobes and also when the phase spectrum goes out of the range of -pi to pi.
ReplyDeleteSimple method for designing FIR filter
ReplyDelete
ReplyDeleteHowever, if undersampled, output may be time aliased.