DECAT - Departamento de Controle e Automação

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Autor: search.filters.author.Andrucioli, Guilherme Lucio DamiãoAssunto: search.filters.subject.Electronic analogy

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    Experimental characterization of nonlinear systems : a real-time evaluation of the analogous Chua’s circuit behavior.
    (2010) Rocha, Ronilson; Andrucioli, Guilherme Lucio Damião; Torricos, Rene Orlando Medrano
    This paper presents an experimental characterization of the behavior of an analogous version of the Chua’s circuit. The electronic circuit signals are captured using a data acquisition board (DAQ) and processed using LabVIEW environment. The following aspects of the time series analysis are analyzed: time waveforms, phase portraits, frequency spectra, Poincaré sections, and bifurcation diagram. The circuit behavior is experimentally mapped with the parameter variations, where are identified equilibrium points, periodic and chaotic attractors, and bifurcations. These analysis techniques are performed in real-time and can be applied to characterize, with precision, several nonlinear systems.