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 $.

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