FIR filter design using window function

FIR filter design using window function

In this experiment  we design digital filter using window method.We accept the input specifications for two cases ; one for HPF and second for BPF and  design the filter by selecting appropriate window function.Here we used hamming window.Then we plot magnitude spectrum and phase spectrum and verify the value of Ap and As in pass band and stop band from the magnitude spectrum.
In BSF as we increase FS1 and FS2 width of main lobe increase and large range of frequencies can be filtered.