Simulink Control Design™ - MathWorks

(Tuis.) #1
“Verify Model at Default Simulation Snapshot Time” on page 14-6

Magnitudes (dB)


Magnitude values for one or more lower magnitude bound segments, specified in
decibels.

Specify the corresponding frequencies in Frequencies (rad/sec) on page 16-26.

Settings

Default:
[] for Bode Plot block
[20 20] for Check Bode Characteristics block

Must be specified as start and end magnitudes:


  • Finite numbers for a single bound with one edge

  • Matrix of finite numbers for a single bound with multiple edges


For example, type [20 20; 40 40] for two edges with magnitudes [20 20] and [40 40].


  • Cell array of matrices with finite numbers for multiple bounds


Tips


  • To assert that magnitude bounds are satisfied, select both Include lower magnitude
    bound in assertion on page 16-25 and Enable assertion on page 16-32.

  • If Include lower magnitude bound in assertion is not selected, the bound segment
    is disabled on the plot.

  • To only view the bound on the plot, clear Enable assertion.

  • You can add or modify magnitudes from the plot window:

    • To add a new magnitude, right-click the plot, and select Bounds > New Bound.
      Select Lower gain limit in Design requirement type and specify the
      magnitude in the Magnitude column. Specify the corresponding frequencies in the
      Frequency column.

    • To modify the magnitudes, drag the bound segment. Alternatively, right-click the
      segment, and select Bounds > Edit Bound. Specify the new magnitude values in
      the Magnitude column.




16 Blocks — Alphabetical List

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