Simple FIR Digital Filters The maximum value of the magnitude function is 1 at o=0 and the minimum value is0atO=π,e, (e0)=1,|H(ez)=0 The frequency response of the above filter Is given by ho(ejo)=e jo/2 cos(@/2) Copyright C 2001, S K. MitraCopyright © 2001, S. K. Mitra 5 Simple FIR Digital Filters • The maximum value of the magnitude function is 1 at w = 0, and the minimum value is 0 at w = p, i.e., • The frequency response of the above filter is given by 1 0 0 0 | 0 ( )| = , | ( )| = j jp H e H e ( ) cos( / 2) / 2 0 = w jw − jw H e e