Implement the transfer function below using the fast convolution structure of Figure 8.27 with the subfilters of length one:

\[H(z)=0.25+0.5 z^{-1}-0.5 z^{-2}-0.25 z^{-3} .\]

x(n) 12 C(z) 100 Co(2) + C(2) 10 121 -1 1-1 00 01 y(n) Fig. 8.27. Co(z) C(2) Overlapped structure Il for fast convolution. C(z) = E(z), i = 0,1.