Simulink Control Design™ - MathWorks

Finally, use feedback to obtain a tunable closed-loop model of the outer loops. To enable

tuning and closed-loop analysis, insert analysis points at the plant outputs.

RollOffFilter = tf(10,[1 10]);

APy = AnalysisPoint('y',3); APy.Location = {'Phi_deg','Alpha_deg','Beta_deg'};

T0 = feedback(APy * Gpos(4:6,:) * RollOffFilter * Cpos ,eye(3));

T0.InputName = {'Phi_demand','Alpha_demand','Beta_demand'};

T0.OutputName = {'Phi_deg','Alpha_deg','Beta_deg'};

You can plot the closed-loop responses for the initial gain surface settings (constant gains

of 0.05).

step(T0,6)

11 Gain-Scheduled Controllers