Robust Stability Under Mixed Time Varying
نویسنده
چکیده
Robustness analysis is considered for systems with structured uncertainty involving a combination of linear time-invariant and linear time-varying perturbations, and parametric uncertainty. A necessary and suucient condition for robust stability in terms of the structured singular value is obtained, based on a nite augmentation of the original problem. The augmentation corresponds to considering the system at a xed number of frequencies. Suucient conditions based on scaled small-gain are also considered and characterized.
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