Robust Observer Design for Takagi-Sugeno Fuzzy Systems with Mixed Neutral and Discrete Delays and Unknown Inputs

Abstract EN

A robust observer design is proposed for Takagi-Sugeno fuzzy neutral models with unknown inputs.

The model consists of a mixed neutral and discrete delay, and the disturbances are imposed on both state and output signals.

Delay-dependent sufficient conditions for the design of an unknown input T-S observer with time delays are given in terms of linear matrix inequalities.

Some relaxations are introduced by using intermediate variables.

A numerical example is given to illustrate the effectiveness of the given results.