Simulink Control Design™ - MathWorks

(Tuis.) #1

Gain Goal


Purpose


Limit gain of a specified input/output transfer function, when using Control System Tuner.

Description


Gain Goal limits the gain from specified inputs to specified outputs. If you specify multiple
inputs and outputs, Gain Goal limits the largest singular value of the transfer matrix. (See
sigma for more information about singular values.) You can specify a constant maximum
gain at all frequencies. Alternatively, you can specify a frequency-dependent gain profile.

Use Gain Goal, for example, to enforce a custom roll-off rate in a particular frequency
band. To do so, specify a maximum gain profile in that band. You can also use Gain Goal to
enforce disturbance rejection across a particular input/output pair by constraining the
gain to be less than 1.

Gain Goal
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