1,720,995 research outputs found
Enhancing the near decoupling property of closed-loop control systems through external constant feedback loop
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Multiconfiguration control for robust output tracking with structured perturbations
No full textThe robust tracking problem for a family of linear uncertain plants is considered. The solution presented is in terms of a deterministic time-varying compensator, which may assume a finite number of possible different configurations, and of a supervisor whose task is that of determining the switching instants of a pre-routed scanning among the elements of the family according to a suitably defined experimental test on the tracking erro
Robust output tracking with structured perturbations: a multiple model control based approach.
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A non-stationary adaptive model for recursive image filtering
No full textA new approach to non-homogeneous image modelling for recursive filtering problems is developed. The main assumption is that the whole non-homogeneous image can be modelled by a collection of homogeneous open subregions where the 2-D signal is regular enough to be well described by a smooth two-dimensional gaussian process. The boundary points between two adjacent homogeneous subregions are the image edges which represent sharp discontinuities (inhomogeneities) in the signal distribution. A non-stationary state-space representation with structural information on the image non-homogeneity is obtained. This allows the model to vary in an adaptive manner according to the presence of spatial discontinuities. Finally, the reported simulation results show high filter performances
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