AU - Nasiri, Alireza AU - Baranzadeh, Ahmad AU - Rashidi, Farzan TI - Robust H_∞ Output Feedback Control for T-S Fuzzy Systems: A Non-‎monotonic Approach PT - JOURNAL ARTICLE TA - joc-isice JN - joc-isice VO - 14 VI - 4 IP - 4 4099 - http://joc.kntu.ac.ir/article-1-652-en.html 4100 - http://joc.kntu.ac.ir/article-1-652-en.pdf SO - joc-isice 4 AB  - This paper proposes robust H_∞ output feedback control stabilization for uncertain Takagi–Sugeno (T-S) fuzzy systems via linear matrix inequalities (LMIs). In order to reduce the conservatism associated with T-S fuzzy system, a new form of non-monotonic Lyapunov functions is used. In the non-monotonic approach, the monotonic decrease of the Lyapunov function is relaxed which enables it to increase locally but vanish eventually. Based on the non-monotonic Lyapunov function approach, sufficient conditions for the existence of robust H_∞ output feedback control stabilization are derived. The proposed design technique is shown to be less conservative than the existing non-monotonic approach, namely, K -samples variations of Lyapunov function. The effectiveness of the proposed approach is further illustrated via numerical example. CP - IRAN IN - University of Hormozgan LG - eng PB - joc-isice PG - 107 PT - Research paper YR - 2021