]>Frequency-Domain Robust Performance Condition for Controller Uncertainty in SISO LTI Systems: A Geometric Approach : Figure 6
746762.fig.006a
(a)
746762.fig.006b
(b)
Figure 6: (a) The robust performance bound and the approximated weighting function 𝑊 𝐾 , (b) with its respective structured singular value plot.