Model transfering function:H(Z) 9 H2) X() w(n) x(n) W(z) H(Z) ) k=0 x(e吃a,:=w(e24: Assume a=1 dox(n)=-ax(n-k)+>b.w(n-k).do=I x(n)=-ax(n-k)+>bw(n-k).do=1Model transfering function: H(Z) ( ) ( ) ( ) ( ) ( ) 0 0 0 0 0 0 0 1 0 ( ) ( ) ( ) 1 , 1 q k k k p k k k p q k k k k k k p q k k k k b z X z H z W z a z X z a z W z b z Assume a a x n a x n k b w n k a − = − = − − = = = = = = = = = − − + − = ∑ ∑ ∑ ∑ ∑ ∑