laplace/z mix transfer function

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qslazio

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i came up with a laplace/z mix transfer function like below:
X(z)/Vn(s)=((z^2-a)*K/s)/(z^3+b*z^2+c*z+d)
in which the "1/s" term functions like a integrator with the sample period

How can i analysis it in frequency domain?
Plz help
Thxs
 

hi:
in fact you countered with two different frequency one is Ω and another is ω.
I think you should first substitude exp(jΩ) as z and jω as s and then normalize both of them to carachteristic frequency correspond to your circuit and then analyse your problem in terms of one frequency .
I'm not sure to answer correct but hope to help you.
 

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