IEEE Transactions on Automatic Control, Vol.45, No.9, 1755-1759, 2000
When is (D, G)-scaling both necessary and sufficient
It is shown that the well-known (D, G)-scaling upper hound of the structured singular value is a nonconservative test for robust stability with respect to certain linear time-varging uncertainties.
Keywords:duality;IQC;linear matrix inequalities;mixed structured singular values;robustness;time-varying systems