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This brief presents the design and implementation of observer design strategies for experimental non-smooth continuous and discontinuous systems. First, a piece-wise linear observer is implemented for an experimental setup consisting of a harmonically excited flexible steel beam with a one-sided support which can be considered as a benchmark for a class of flexible mechanical systems with one-sided...
In this paper we present an output feedback controller design method for a class of bi-modal piecewise linear systems. The proposed output feedback controller consists of a switching state observer and a static state feedback. The observer and the controller are designed separately using the concept of input-to-state stability (ISS). A sufficient small gain condition is derived that guarantees global...
This paper proves the formal equivalence between the class of switched affine systems and the class of switched autoregressive systems with exogenous inputs. These classes of hybrid dynamical systems have been studied recently for various purposes. It is shown that any observable switched affine system admits a representation as a switched autoregressive system and every switched autoregressive system...
In this paper we present an experimental observer design for a rotor system with friction. The model of the system exhibits set-valued static friction law with the Stribeck effect. As the model of the setup is non-smooth and non-Lipschitz, observer has to be designed using mathematical tools from convex analysis and the theory of differential inclusions. The designed observer guarantees that there...
So far, the processes involved in regulation of intracellular calcium (Ca/sub i//sup 2+/) in cardiomyocytes have been mainly studied through biochemical and isolated cell analysis. Here, we present a novel technique to model and identify cardiac Ca/sub i//sup 2+/-cycling under physiologically relevant conditions in the intact beating heart. Ca/sub i//sup 2+/ was measured using fluorescence techniques...
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