Splitting the Unit Delay - IEEE Signal Processing ... - IEEE Xplore

11.61.40.83 130.6t ; 1.25 I 0.4 2 l.l0.21,5' ' ' " r i "d=0.5______d=O.4d=0.3d=02dd.1d=O0 0.9" " " " '/ " " " " ' I 1- " " " ' I4.5d=0.54.4& 4.3d4.2v)5 4.1d=O 4d=O 3d=O 240 01 02 03 04 05 06 07 08 09 1NORMALIZED FREQUENCY3.91 ' ' ' ' ' ' ' ' ' 10 0.1 0.2 0.3 04 0.5 0.6 0.7 0.8 09 1NORMALIZED FREOUENCY(4 (4Fig. A5. Maximally flat FIR design (Lagrange interpolation). L = 4: (a) Magnitude and (b) phase delay response. L = 10: (c)Magnitude and (d) phase delay response.W108I062= 0 4Id = 0.4,4.'=03$ 1.3~05r1.2-u=o.2d=O.l02d = 0.5"0 0.1 '0.2 0.3 0.4 '0.5 '0.6 0.7 '0.8 0.9 'iNORMALIZED FREQUENCY0.9d=O' I * " ' ' ' '(a)10.8W5 0.6tz3 0.40.2d=03>. 435 '~0 d=0.2w 4.2-I,, d=01d=O40 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 09 1NORMALIZED FREQUENCY3.91, " , ' , , , 10 01 02 03 04 05 06 07 08 09 1NORMALIZED FREQUENCYFig. A6. Equiripple FIR design. L= 4, op = 0.51~: (a) Magnitude and (b) phase delay response. L = 10, op = 0.8~: (c) Magnitudeand (d) phase delay response.(d)JANUARY 1996 IEEE SIGNAL PROCESSING MAGAZINE 57