Simulink Control Design™ - MathWorks

(Tuis.) #1
The step response of the nonlinear model and linearized model are close, which
validates that the linearization is accurate.
5 Increase the amplitude of the step signal from 1.0e-005 to 1.

input = frest.createStep('Ts',0.1,...
'StepTime',1,...
'StepSize',1,...
'FinalTime',500);

(^6) Repeat the frequency response estimation with the increased amplitude of the input
signal, and compare this time response plot to the exact linearization results.
[~,simout2] = frestimate(sys,op,sys_io,input);
frest.simCompare(simout2,linsys,input)
2 Linearization

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