S 7.4 IIR Digital Filter Design: Bilinear Transformation Method Digital filter design consists of 3 steps: (1)Develop the specifications of H(s)by applying the inverse bilinear transformation to specifications of G(z) (2)Design H(s) (3)Determine G(by applying bilinear transformation to H(s) As a result,the parameter T has no effect on G()and T=2 is chosen for convenience§7.4 IIR Digital Filter Design: Bilinear Transformation Method • Digital filter design consists of 3 steps: (1) Develop the specifications of Ha(s) by applying the inverse bilinear transformation to specifications of G(z) (2) Design Ha(s) (3) Determine G(z) by applying bilinear transformation to Ha(s) • As a result, the parameter T has no effect on G(z) and T = 2 is chosen for convenience