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

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.

Answer 1

[MathWorks Support Team]

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?"