Title :
Comments on "Stability margin evaluation for uncertain linear systems
Author_Institution :
Minist. of Defense, Panchiao, Taiwan
Abstract :
The bound derived in the above paper by Gong-Thompson (ibid. vol.39, no.3, p.548-50 (1994)) is shown via two new stability criteria not to be the tightest possible for all unstructured perturbations. A minor error of their theorem is also corrected.<>
Keywords :
linear systems; stability; stability criteria; uncertain systems; bound; stability criteria; stability margin; uncertain linear systems; unstructured perturbations; Asymptotic stability; Error correction; Linear systems; Lyapunov method; Military communication; Riccati equations; Stability criteria; Symmetric matrices; Time varying systems; Uncertainty;
Journal_Title :
Automatic Control, IEEE Transactions on