What is a step response graph?
Step Response Plots
step( sys ) plots the response of a dynamic system model to a step input of unit amplitude. The model sys can be continuous- or discrete-time, and SISO or MIMO. For MIMO systems, the plot displays the step responses for each I/O channel.
How do you determine step response?
To find the unit step response, multiply the transfer function by the unit step (1/s) and the inverse Laplace transform using Partial Fraction Expansion..
Why is step response useful?
The step response provides a convenient way to figure out the impulse response of a system. The ideal way to measure impulse response would be to input an ideal dirac impulse to the system and then measure the output.