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The transfer function of digital causal system is given as follows: H(z)=1−z−11−0.2z−1−0.15z−2. Draw cascade form, parallel form realization
1 Answer
written 8.5 years ago by |
H(z)=1−z−11−0.2z−1−0.15z−2
=[(1−z−1)(1−0.5z−1)][11+0.3z−1)]
Cascade form can be given as :-
Parallel form:-
H(z)=1−2−11−0.2z−1−0.15z−2=z(2−1)z2−0.2z−0.15H(z)z=(z−1)(z−0.5)(2+0.3)
Now,
H(2)z=Az−0.5+Bz+0.3∴A=H(z)2(z−0.5)|z=0.5=−0.625B=z−1(2−0.5)(2+0.3)|z=−0.3=−0.3−1−0.3−0.5=1.625
Parallel form can be given as