This paper concerns nonlinear state estimation in a continuous polymerization reactor
where free-radical solution polymerization of methyl methacrylate takes place. Initiator and …

A method of multirate nonlinear state observer design, which can use directly a nonlinear
process model in the observer design without any linear approximation, is presented. The …

A nonlinear deterministic observer is developed for a class of multi-input multi-output
systems. This observer is a Luenberger-like one that uses a constant gain which can be …

Abstract LUENBERGER observers and KALMAN-BUCY filters have been applied to
estimate non-measurable states in a styrene polymerization reactor. The states of the …

This paper deals with the classical problem of state estimation, considering partially
unknown, nonlinear systems with noise measurements. Estimation of both, state variables …

This paper deals with the problem of nonlinear states estimation in batch chemical
processes. It presents a reduced-order nonlinear observer approach to perform the …

The issue of parameter estimation in Extended Kalman Filters is addressed in this paper. It is
shown that the use of parameters as additional system states is appropriate whenever there …

An on‐line state‐estimation design for multiinput multioutput nonlinear plants, either
observable or detectable, is presented. The design considers a stage of analysis, in which …

Adaptive and high gain nonlinear observers are used for state and parameter estimation in
an industrial polymerization process. The solution homopolymerization of acrylic acid is …

Three approaches to nonlinear state estimation are evaluated for application to semi-batch
polymerization problems. The semi-batch emulsion copolymerization of styrene/butadiene …