MATLAB: “rise time, overshoot, settling time” from Simulink graph

Control System Toolboxgraphovershootparametersrise timesettling timesimulink

How to determine the system "rise time,overshoot and settling time" from Simulink graph? I had try to save the 'Scope' history data to workspace in "structure with time format", Is that correct? If it is correct, what should i do in the next step in order to display the parameters?

Thankyou

Best Answer

If you have Control System Toolbox, you can use stepinfo.

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MATLAB: Time response of the voltage

Most of the documentation for the bilevel measurements panel can be found here: Scope Bilevel Measurements. The results are averaged over what is visible in the display, so if you want the measurements about just one edge, zoom in on just that edge.

If your signal is noisy, you may have better results setting your high and low state levels manually (use the "Settings" tab in the Bilevel Measurements dialog).

For settling time, you'll need to set the minimum duration of time that you expect the signal to completely settle out. For example if you are measuring the settling time of the rising edge of a positive-polarity pulse with a width of 50 ns, you can set your settling seek duration to something like 40 ns.

See the documentation of settlingtime or dsp.TransitionMetrics (the SettlingSeekDuration property).

MATLAB: Result of stepinfo size is 1×1 …how can i extract settling time to another variable

Consider this approach:

Gs=tf(1,[1 1]); 
result=stepinfo(Gs); 
SettlingTime=result.SettlingTime

Best Answer

Related Solutions

MATLAB: Time response of the voltage

MATLAB: Result of stepinfo size is 1×1 …how can i extract settling time to another variable

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