Simulink Control Design™ - MathWorks

(Tuis.) #1

During simulation, the block can also output a logical assertion signal:



  • If all bounds are satisfied, the signal is true ( 1 ).

  • If a bound is not satisfied, the signal is false ( 0 ).


For MIMO systems, the bounds apply to the singular values computed for all input/output
combinations.


You can add multiple Check Singular Value Characteristics blocks in your model to check
upper and lower singular value bounds on various portions of the model.


You can also plot the singular values on a singular value plot and graphically verify that
the values satisfy the bounds.


This block and the other Model Verification blocks test that the linearized behavior of a
nonlinear Simulink model is within specified bounds during simulation.



  • When a model does not violate any bound, you can disable the block by clearing the
    assertion option. If you modify the model, you can re-enable assertion to ensure that
    your changes do not cause the model to violate a bound.

  • When a model violates any bound, you can use Simulink Design Optimization software
    to optimize the linear system to meet the specified requirements in this block.


You can save the linear system as a variable in the MATLAB workspace.


The block does not support code generation and can be used only in Normal simulation
mode.


Parameters


The following table summarizes the Singular Value Plot block parameters, accessible via
the block parameter dialog box. For more information, see “Parameters” on page 16-285
in the Singular Value Plot block reference page.


Check Singular Value Characteristics
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