Discretisation of continuous-time T-S fuzzy system: Global approach

D. W. Kim, J. B. Park, H. J. Lee, Y. H. Joo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A new discretisation technique (so-called global discretisation approach) for the continuous-time Takagi-Sugeno (T-S) fuzzy system is suggested. The proposed global discretisation method takes account of the non-linear behaviour among the fuzzy rules. The authors' main idea is to utilise the dual-rate sampling scheme. The proposed approach is to discretise the overall dynamics of the fuzzy system in the slow-rate sampling period and then to perform the approximation for the polytopic structure in the fast-rate sampling period. In addition, to reduce the number of the IF-THEN rules, the convex minimisation problem is formulated in terms of the linear matrix inequalities. A chaotic Lorenz system is used to show the feasibility of the proposed discretisation method.

Original languageEnglish
Pages (from-to)237-246
Number of pages10
JournalIEE Proceedings: Control Theory and Applications
Issue number2
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Instrumentation
  • Electrical and Electronic Engineering


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