Consider the alternative parallel structure seen in Figure 13.56, whose transfer function is

\[H(z)=h_{0}^{\prime}+\sum_{k=1}^{m} \frac{\gamma_{1 k}^{\prime} z+\gamma_{2 k}^{\prime}}{z^{2}+m_{1 k} z+m_{2 k}}\]

Discuss the scaling procedure and determine the relative noise variance for this realization.

Fig. 13.56. x(n) -M1 -mm (x) vid Alternative parallel structure with direct-form sections. y(n)