A Time-variant Nonlinear Observer by a Formal Linearization and Its Application to a Bioreactor

K. Komatsu and H. Takata (Japan)


Nonlinear Signals and Systems, Linearization, Time-Variant Nonlinear Systems, Nonlinear Observer


In this paper we develop a computation of a formal linearization method for a general class of time-variant multi-dimensional nonlinear systems and construct a time-variant nonlinear observer as its application. By this method, time-variant nonlinear systems are easily transformed into time-variant linear ones using a computer and a nonlinear observer is constructed by applying linear estimation theories. As a tentative real system, an observer for a biological system is described

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