[Scilab-users] Model ID of First order delay and Dead Time Process

[noguchi]

Dear Mr.Serge, 


Thank you for your advise. I tried to use time_ID.
Please look at the following Scinote:

z=poly(0,'z');
h=(0.07/(z-0.934))*(1/z^10)
u=zeros(1,100);
for i=6:1:100
    u(1,i)=1;
end
t=1:1:100;
rep=flts(u,tf2ss(h));    
plot(t,rep,t,u)
H=time_id(10,'step',rep)
rep=flts(u,tf2ss(H));     
plot(t,rep,'.r')

There is a big difference between the original model equation and Identified
model equation.
The responsed curves are also different each other.
Are there any good command so that I can obtain parameters for first order
time delay constant and its gain and dead time?

Thank you foryour help.


Y. Noguchi




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