1
3.3kviews
Identify whether the following system is minimum phase, maximum phase, mixed phase.(i)H1(z)=6+z−1+z−2(ii)H2(z)=1−z−1−6z−2
1 Answer
written 8.6 years ago by | • modified 8.6 years ago |
a)H1(z)=6+z−1−z−2
H1(z)=6z2+z−1z2=6(z+1/2)(z−1/3)z2zeros z1=−12,z2=13
As both zeros are inside unit circle, this system is minimum phase system.
$b) 1 -z^ {-1} -6z^{-2} \\ H_2(z)=1-z^{-1}-6z^{-2}\\ =\dfrac {z^2-z-6}{z^2}=\dfrac {(z+2)(z-2)}{z^2}\\ \text {zeros are at } z_1=-2, …