
Chapter 12 LQG/H-Infinity Synthesis
Xmath Interactive Control Design Module 12-2 ni.com
Figure 12-1. LQG/H-Infinity Main Window
• A pull-down menu for frequency-dependent weight selection on
inputs:
and outputs:
• A button for recomputing the controller.
These parameters are described in greater detail later in this chapter.
LQG/H-Infinity Weights Window
The Weights window is for defining control cost and noise level parameters
and is shown in Figure 12-2.
From top to bottom, the Weights window consists of:
• A menu bar with entries Special, Edit, View, and Help.
• A row with two radio buttons which toggle the contents of the window
between control cost and noise level parameters. The following
W
ui,
i 1= … n
u
,,,
W
yj,
j 1= … n
y
,,,
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