FIR Filter Design using Frequency Sampling Method

       The objective of this experiment was to design a digital filter for the given input specifications using frequency sampling method.
Algorithm for this exp was as followed:

• from the given parameters find Hd(W)
• find out H(k) by using DFT
• find h(n) by using IDFT

       During this lab session we needed to perform FIR using Frequency sampling for LPF and HPF. This algorithm was implemented in scilab again.  We learned that the number of lobes increases with order of the digital filter. As filter order increases, number of lobes in stop band also increases. The output is also symmetric in nature. After observing for both IIR and FIR we learn that for same parameters, order of FIR is higher than IIR.

scilab code for FIR Filter Design using Frequency Sampling Method :
https://drive.google.com/open?id=0B-US8fsfaFQxM2QwSkxYUjNtS28