Unknow transfer function

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cyberdyne 2011-5-22

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Hi,

I've a discrete transfer function (z-transfer function), how can i get equivalent transfer function in s-domain or its frequency response like an analog system?

The transfer function is:

           a
H(z)= ----------------    where a,b,c are constants
      1+bz^(-1)+cz^(-2)

I need to check what is its behaviour, 'cause i don't know it

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回答（1 个）

Arturo Moncada-Torres 2011-5-22

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https://ww2.mathworks.cn/matlabcentral/answers/7987-unknow-transfer-function#answer_10980

在 MATLAB Online 中打开

Try looking into the function d2c

help d2c
doc d2c

Hope it helps!

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cyberdyne 2011-5-22

Thanks!!!

Arturo Moncada-Torres 2011-5-23

My pleasure! If the answer is what you were looking for, could you please mark the question as "answered" and vote for the answer? This motivates us to keep answering in MATLAB answers!

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