Unknown input based observer synthesis for an interval type-2 polynomial fuzzy system with time delays and uncertainties

作者: Jiayue Sun , Huaguang Zhang , He Jiang , Jian Han

DOI: 10.1016/J.NEUCOM.2019.02.028

关键词:

摘要: Abstract To reduce the complexity of controller design for a type-2 polynomial fuzzy system with time delays and uncertainties, which can be translated into unknown input, paper adopts sum squares (SOS) procedure different from traditional linear matrix inequality (LMI)-based approaches. Control scheme interval might achieve better performance due to additional degrees freedom, however, complicated internal structure is still bottleneck restriction robust stability nonlinear system. Proposed observer synthesis adhibition SOS both lower computational cost efficaciously. Investigated malfunctions uncertainties whose effect must eliminated without designed extra simplification. The input based approach proposed, by which, estimation error asymptotically converge zero taking as input. Simulation examples are demonstrate feasibilities proposed approach.

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