[Scilab-users] Optimization: First order delay and dead time TF model ID, CUTEr

[noguchi]

Dear Harpreet,


Thank you for advise. It is little bit difficult for me to write down the
correct Scilab commands by only reading the datafit help.

Is following command right?   (ym(n)=ym(n-1)*amp+Kpm*bmp*u(n-1-Tdm)  where
n=step=1:1:500)


function y = FODDT(u,Kpm,Taum,Tdm,step,Tsamp)
amp=exp(-Tsamp/Taum);
bmp=1-amp;
[ym,amp,bmp]=ym(step-1)*amp+Kpm*bmp*u(step-1-Tdm)
endfunction

Don't we need to write the object function? Object function is minimize the
sum of error square = sum of (y(i)-ym(i))^2

How I should represent above equation in Scilab?

Thanks for your kind advise.

Best Regards,



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