Implementing Matlab code in a Simulink Matlab function

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Good morning everyone.
Could someone help me implement this code in Simulink?
Functions like makima or smooth does not seem to work in matlab function blocksets.
%% DATA INPUT
dynamic_pressure = 1027.924;
alpha_breakpoints_Fx = [-180 -165 -90 -15 -10 -5 0 5 15 30 60 90 120 150 165 180];
Fx_values = [-450 -395 -11 299 310 290 296 280 315 280 -18 -62 60 -640 -510 -450];
Fx_coefficients = Fx_values/dynamic_pressure;
%% SPACE ALLOCATION
Fx_coefficients_interpolation = zeros(1,360);
alpha_interpolation = zeros(1,360);
%% CUBIC SPLINE INTERPOLATION
for i = 1:361
alpha_interpolation(i) = i-181;
Fx_coefficients_interpolation(i) = makima(alpha_breakpoints_Fx,Fx_coefficients,alpha_interpolation(i));
end
%% Fx
der_Fx_sx = (Fx_coefficients_interpolation(2)-Fx_coefficients_interpolation(1))/(alpha_interpolation(2)-alpha_interpolation(1));
der_Fx_dx = (Fx_coefficients_interpolation(end)-Fx_coefficients_interpolation(end-1))/(alpha_interpolation(end)-alpha_interpolation(end-1));
der_Fx = mean([der_Fx_sx der_Fx_dx]);
Fx_coefficients_interpolation = smooth(alpha_interpolation,Fx_coefficients_interpolation,'sgolay',4);
I am basically trying to fit a set of data using a handmade lookup table using makima as the interpolation method and then smooth the trend of the result to avoid discontinuities.

回答(1 个)

Ganesh Gudipati
Ganesh Gudipati 2022-4-13
Hi,
Once we define the matlab function block, the simulink generates code for that function block. In this case the functions makima and smooth donot support code generation.
Hope this helps.

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