Fuzzy frequency response: Proposal and application for uncertain dynamic systems
Fuzzy frequency response: proposal and application for uncertain dynamic systems is proposed in this paper. The uncertain dynamic system is partitioned into several linear sub-models, in terms of transfer function, and organized into Takagi-Sugeno (TS) fuzzy structure. The main contribution of this approach is demonstrated, from a Theorem, that the fuzzy frequency response is a bound in the magnitude and phase Bode plots. The analysis, from the fuzzy dynamic model, at low and high frequencies, is obtained varying the frequency omega from zero to infinity. (C) 2011 Elsevier Ltd. All rights reserved.
fuzzy frequency response takagi-sugeno fuzzy control complex systems frequency response analysis uncertain systems