Simulink Control Design™ - MathWorks

Settings

Default:
[] for Bode Plot block
[0.1 1] for Check Bode Characteristics block

Must be specified as start and end frequencies:

• Positive finite numbers for a single bound with one edge


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

For example, type [0.1 1;1 10] to specify two edges with frequencies [0.1 1] and [1 10].

• Cell array of matrices with positive finite numbers for multiple bounds

Tips

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


• You can add or modify frequencies from the plot window:
  
  
  • To add a new frequencies, right-click the plot, and select Bounds > New Bound.
    Select Lower gain limit in Design requirement type, and specify the
    frequencies in the Frequency column. Specify the corresponding magnitudes in
    the Magnitude column.
  
  
  • To modify the frequencies, drag the bound segment. Alternatively, right-click the
    segment, and select Bounds > Edit Bound. Specify the new frequencies in the
    Frequency column.
  
  
  
  

You must click Update Block before simulating the model.

Command-Line Information
Parameter: LowerBoundFrequencies
Type: character vector
Value: [] | [0.1 1] | positive finite number | matrix of positive finite numbers | cell
array of matrices with positive finite numbers. Must be specified inside single quotes ('').
Default: '[]' for Bode Plot block, '[0.1 1]' for Check Bode Characteristics block.

See Also

Plot Linear Characteristics of Simulink Models During Simulation on page 2-82

Bode Plot