The difficulties encountered in chemical engineering arise from the lack of reliable and
robust sensors. Several works deal with the design of software sensors in order to estimate …

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

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 …

The control of polymerization processes has central importance because operational
conditions affect the processing and end-use properties of the product. The nonlinear …

Polymerization processes require adequate monitoring to ensure that the final product
meets specification. Various on-line measuring techniques have been developed and …

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 …

The control of polymerization processes has central importance because operational
conditions affect the processing and end-use properties of the product. The nonlinear …

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 …

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 …

Polymerization processes are highly non‐linear systems that require strict control of their
dynamic operation to be competitive. The unscented Kalman filter is a filtering strategy that …