Robust design of non-stationary sinusoidal unknown inputs multiobserver based on decoupled state multimodel

Author

Allaoui, Mouhib ; Messaoud, Anis ; Ben Abdennour, Ridha

Author_Institution

Numerical Control of Ind. Processes, Nat. Sch. of Eng. of Gabes (ENIG), Tunisia

fYear

2014

Firstpage

1067

Lastpage

1073

Abstract

This paper deals with the design of robust non-stationary sinusoidal unknown inputmultiobserver for discrete-time nonlinear systems described by decoupled state multimodel. The particularity of this work resides in the fact that it provides a simultaneous state and non-stationary sinusoidal unknown inputs estimations. A new robust strategy allowing the minimization of the non-stationary sinusoidal unknown inputs and disturbances impact on the state estimation error will be developed.

Keywords

discrete time systems; estimation theory; minimisation; nonlinear control systems; observers; robust control; decoupled state multimodel; discrete-time nonlinear system; minimization; nonstationary sinusoidal unknown inputs estimation; nonstationary sinusoidal unknown inputs multiobserver; robust design; robust nonstationary sinusoidal unknown inputmultiobserver design; robust strategy; simultaneous state; state estimation error; Computers; Decoupled state multi-model; Non-stationary Sinusoidal Unknown Inputs; Nonlinear systems; Robust Multiobserver;

fLanguage

English

Publisher

ieee

Conference_Titel

Sciences and Techniques of Automatic Control and Computer Engineering (STA), 2014 15th International Conference on

Type

conf

DOI

10.1109/STA.2014.7086783

Filename

7086783