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transfer function in a time constant form
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pietro
May 5, 2009, 8:44:03 AM5/5/09
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Is there a command to convert a trasfer function in zero pole form to time constant form? Thanks in advance.
Nasser Abbasi
May 5, 2009, 9:10:54 AM5/5/09
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"pietro " <braca...@email.it> wrote in message
news:gtpcaj$bk3$1...@fred.mathworks.com...
> Is there a command to convert a trasfer function in zero pole form to time
> constant form? Thanks in advance.
"time constant form" ?
You mean to get the equation of motion from the tf?
something like this?
for example
EDU>> clear all
z = -0.5;
p = [0.1+i 0.1-i];
k = 1;
H = zpk(z,p,k);
tf(H)
Transfer function:
s + 0.5
------------------
s^2 - 0.2 s + 1.01
EDU>> syms s
EDU>> ilaplace( (s + 0.5)/(s^2 - 0.2 *s + 1.01) )
ans =
exp(t/10)*(cos(t) + (3*sin(t))/5)
--Nasser
pietro
May 5, 2009, 9:33:01 AM5/5/09
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"Nasser Abbasi" <n...@12000.org> wrote in message <AVWLl.28621$yr3....@nlpi068.nbdc.sbc.com>...In this links is shown the time constant form
https://www.informit.com/articles/article.aspx?p=32090&seqNum=9
pietro
May 12, 2009, 9:52:02 AM5/12/09
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"pietro " <braca...@email.it> wrote in message <gtpcaj$bk3$1...@fred.mathworks.com>...
> Is there a command to convert a trasfer function in zero pole form to time constant form? Thanks in advance.
> Is there a command to convert a trasfer function in zero pole form to time constant form? Thanks in advance.
can't anyone help me?
pietro
May 12, 2009, 9:53:02 AM5/12/09
to
> Is there a command to convert a trasfer function in zero pole form to time constant form? Thanks in advance.
can't anyone help me?
Rui Filipe
May 8, 2016, 1:56:12 PM5/8/16
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> Is there a command to convert a trasfer function in zero pole form to time constant form? Thanks in advance.
I'm sure that you already found the answer but someone else may find it useful.
Just add the option 'DisplayFormat', 'time constant' to the zpk command:
>> G3 = zpk([],[-1 -2 -3],4,'DisplayFormat', 'time constant')
G3 =
0.66667
--------------------------
(1+s) (1+0.5s) (1+0.3333s)
Continuous-time zero/pole/gain model.
Regards
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