Our next experiment was to perform Linear phase FIR filter design using Window function. The parameters such as- attenuation in Pass Band, Stop Band, the Passband and Stopband frequencies were mentioned by the user. The desired freq response obtained was Hd(w) which was then sampled using DFT to obtain H(k) and further executed using IDFT to obtain h(n). It was observed that the order increases, the number of lobes in the stop band increases.
FSM
Phase spectrum is linear within the positive lobes of magnitude spectrum.
ReplyDeleteA factor of m*(pi) is added whenever the magnitude is found out to be negative.
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