Obtain Uncertain State-Space Model from Simulink Model

To obtain an uncertain state-space model from a model that contains Uncertain State Space blocks, use the following steps:

  1. (Prerequisite) Create or open the Simulink® model.

  2. (Prerequisite) In the Simulink model, specify the linearization input and output points using Simulink Control Design™ getlinio or linio commands. For more information, see Specify Model Portion to Linearize in the Simulink Control Design documentation.

  3. (Prerequisite) If you have not already done so, specify uncertainty in the Simulink model as described in Specify Uncertainty Using Uncertain State Space Blocks.

      Note   The software does not evaluate the uncertain variables during linearization. Thus, the value of the uncertainty does not affect the linearization.

  4. Run ulinearize to compute an uncertain linearization. This command returns an uss model.

For more information on linearization and how to evaluate the results, see Linearization Basics in the Simulink Control Design documentation.

For an example of how to use the Simulink Control Design linearize command, see Linearization of Simulink Models with UncertaintyLinearization of Simulink Models with Uncertainty.

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