ECE 438 Fall_2009 Prof. Boutin: graph of the magnitude of the DFT of a windowed filter
This is an approximation of the graph of the magniture of $ H_{FIR}(\omega)=W(\omega)*\bar{H}(\omega) $ for $ M=1,000 $ and $ \omega_c=\frac{\pi}{2} $.
This is the graph of the magniture of $ W(\omega) $ for $ N=100 $.
This is the graph of the magniture of $ W(\omega) $ for $ N=10000 $.