Margins Goal
Purpose
Enforce specified gain and phase margins when using Control System Tuner.Description
Margins Goal enforces specified gain and phase margins on a SISO or MIMO feedback
loop. For MIMO feedback loops, the gain and phase margins are based on the notion of
disk margins, which guarantee stability for concurrent gain and phase variations in all
feedback channels. For information about multiloop disk margins, see “Stability Analysis
Using Disk Margins” (Robust Control Toolbox).In Control System Tuner, the shaded area on the plot represents the region in the
frequency domain where the margins goal is not met. For more information about
interpreting this plot, see “Stability Margins in Control System Tuning” on page 10-216.Margins Goal