Кафедра фізичних основ електронної техніки (ФОЕТ)

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https://openarchive.nure.ua/handle/document/54

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Перегляд Кафедра фізичних основ електронної техніки (ФОЕТ) за темою "chaos"

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  • Немає доступних мініатюр
    Публікація
    Dynamic System Chaotic Behaviour and Uncertanty Measurement
    (2007) Machekhin, Yu. P.
    The role of dynamical chaos as a mechanism of increasing measurement uncertainty in a nonlinear dynamic system is discussed. A mathematical model based on the logistic equation was used for investigation of the effect. It was found that the uncertainty measurement, which has abnormal distribution, is connected with dynamic chaos.
  • Зображення мініатюри
    Публікація
    Features of entropy analysis of measurement results in nonlinear dynamical systems
    (Метрологія та прилади, Харьков, 2013) Machekhin, Yu. P.; Kurskoy, Yu. S.
    This article is the first from the group of publications about new metrological tasks. The article contains the arguments for using entropy analysis during creation new specific approaches and models for measurements in real-world nonlinear dynamical systems. The presenters offer special measurement model and measurement results analysis model that based on the main principles and concepts of dynamical chaos theory and fractal representations of the real systems behavior. The example of entropy analysis of measurement results in nonlinear dynamical systems is represented. It is shown that using entropy analysis will allow to use the modified Concept of expression of uncertainty of measurements in real-world, open, dissipative, chaotic systems.
  • Зображення мініатюри
    Публікація
    Topological Model of Laser Emission Parameters Research
    (CAOL, 2019) Kurskoy, Yu. S.; Hnatenko, O. S.; Machekhin, Yu. P.; Neofitnyy, M. V.
    The research paper presents a model for studying both the parameters and dynamics of laser light as a nonlinear dynamic system. The model provides for the measurement of the values of physical quantities by non-linear metrology methods and the analysis of the research findings with topological tools. The model is based on the assumption of interval values of the measured values and the possibility of changing the stationary dynamics into the random one. The model contains an experiment scheme and a procedure for evaluating measurement results. The peculiarity of the model lies in its systemic approach and suitability for measuring and researching stationary and chaotic modes. The model provides for the measurement of the emission parameter values intervals in various modes, of their stability values and time series prediction. Classification of the system dynamics is performed using the fractal dimension. The model can be used both to ensure the stability of the laser light parameters, and to obtain and control random emission.