System Identification

Further Analysis in the MATLAB Workspace

Any model and data object can be exported to the MATLAB workspace by dragging and dropping its icon over the To Workspace box in the ident window.

Once you have exported the model to the workspace, there are many commands by which you can further transform it, examine it, and convert it to other formats for use in other toolboxes. Some examples of such commands are

d2c	Transform to continuous time.
ss, idss, ssdata	Convert to state-space representation.
tf, tfdata	Convert to transfer function form.
zpk, zpkdata	Convert to zeros and poles

Note that the commands ss, tf, and zkp transform the model to the Control System Toolbox's LTI models. Moreover, if you have that toolbox many of its LTI-commands can be applied directly to the model objects of the Identification Toolbox. See Connections Between the Control System Toolbox and the System Identification Toolbox

Also, if you need to prepare specialized plots that are not covered by the Views, all the System Identification Toolbox commands for computing and extracting simulations, frequency functions, zeros and poles, etc., are available. See the Tutorial and Command Reference chapters.

LTI Viewer

Some Further GUI Topics