Journal
IEEE TRANSACTIONS ON FUZZY SYSTEMS
Volume 20, Issue 6, Pages 1012-1021Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TFUZZ.2012.2190048
Keywords
Adaptive fuzzy control; fuzzy logic systems; nonstrict-feedback systems
Funding
- National Natural Science Foundation of China [61074008, 61174033]
- Basic Research Program of China (973 Program) [2011CB707005]
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Controlling nonstrict-feedback nonlinear systems is a challenging problem in control theory. In this paper, we consider adaptive fuzzy control for a class of nonlinear systems with nonstrict-feedback structure by using fuzzy logic systems. A variable separation approach is developed to overcome the difficulty from the nonstrict-feedback structure. Furthermore, based on fuzzy approximation and backstepping techniques, a state feedback adaptive fuzzy tracking controller is proposed, which guarantees that all of the signals in the closed-loop system are bounded, while the tracking error converges to a small neighborhood of the origin. Simulation studies are included to demonstrate the effectiveness of our results.
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