Hi,
I am trying to calibrate parameters using experimental data and simulation results from simulink. But when I try to run it, Matlab gives me some errors. Below the errors:
CalibrationASM1_Namoniacal
Index exceeds matrix dimensions.
Error in optASM1 (line 10)
bh=p(3);
Error in fminsearch (line 189)
fv(:,1) = funfcn(x,varargin{:});
Error in CalibrationASM1_Namoniacal (line 11)
[p,fval,exitflag,output]=fminsearch(@optASM1,[1,1],options)
Below the way I put my equation and inputs in matlab:
% Load parameters for ASM1 first
%% Variable input
t=xlsread('Resultados experimentais.xlsx','N amoniacal','l7:l16');
Dexp=xlsread('Resultados experimentais.xlsx','N amoniacal','m7:m16');
global yh;
global ya;
global bh;
global ba;
%% Optimization
options=optimset('MaxFunEvals',400,'TolFun',1e-8,'TolX',1e-6);
[p,fval,exitflag,output]=fminsearch(@optASM1,[1,1],options)
%% Outputs
sim('ASM1_batelada');
Dsim=Snhout([2 25 41 49 67 77 83 86 90 92])
yh
ya
bh
ba
cc=corrcoef(Dexp,Dsim);
r2=cc(2,1)
And my functions is written in another file optASM1, as follows:
function f=optASM1(p)
Dexp=xlsread('Resultados experimentais.xlsx','N amoniacal','l7:l16');
texp=xlsread('Resultados experimentais.xlsx','N amoniacal','m7:m16');
global yh;
global ya;
global bh;
global ba;
yh=p(1);
ya=p(2);
bh=p(3);
ba=p(4);
%% Simulink
sim('ASM1_batelada');
Dsim=Snhout([2 25 41 49 67 77 83 86 90 92])
%% Cost-function
f=sum((Dexp-Dsim).^2)