Introduction The desired transfer function is H(二) 2 1-az The actual transfer function implemented is 2 z-0 which may be much different from the desired a transfer function H(z)Introduction • The desired transfer function is α α − = − = − z z z H z 1 1 1 ( ) − α = z z H(z) ^ ^ which may be much different from the desired transfer function H(z) • The actual transfer function implemented is