How can I generate the impulse response of a linear or nonlinear system using MATLAB, SIMULINK, impulse, lsim, or ode45?

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MathWorks Support Team on 27 Jun 2009

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I would like to generate the impulse response of a linear or nonlinear system using MATLAB, SIMULINK, impulse, lsim, or ode45.

I also wonder if there are any examples showing how to generate an impulse response.

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Answer 1

MathWorks Support Team on 13 Jun 2018

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https://www.mathworks.com/matlabcentral/answers/101378-how-can-i-generate-the-impulse-response-of-a-linear-or-nonlinear-system-using-matlab-simulink-impu#answer_110726

Note:

In Release 14, Control System Toolbox linearization features for Simulink have been extensively enhanced and moved to a new product named Simulink Control Design. The linearization features are no longer available in the Control System Toolbox. For more information, see the following:

https://www.mathworks.com/products/new_products/previous_release_overview.html

If you are using an earlier version, see the following:

The secret to obtaining impulse responses lies in using the initial conditions that arise from impulse input. This approach is outlines in the attached Tech Note 1901, "How Do I Obtain an Impulse Response?"