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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">novtexmech</journal-id><journal-title-group><journal-title xml:lang="ru">Мехатроника, автоматизация, управление</journal-title><trans-title-group xml:lang="en"><trans-title>Mekhatronika, Avtomatizatsiya, Upravlenie</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1684-6427</issn><issn pub-type="epub">2619-1253</issn><publisher><publisher-name>Commercial Publisher «New Technologies»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17587/mau.21.3-13</article-id><article-id custom-type="elpub" pub-id-type="custom">novtexmech-742</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СИСТЕМНЫЙ АНАЛИЗ, УПРАВЛЕНИЕ И ОБРАБОТКА ИНФОРМАЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SYSTEM ANALYSIS, CONTROL AND INFORMATION PROCESSING</subject></subj-group></article-categories><title-group><article-title>Применение структур для оценки характеристических показателей Ляпунова систем с периодическими коэффициентами</article-title><trans-title-group xml:lang="en"><trans-title>Frameworks Application for Estimation of Lyapunov Exponents for Systems with Periodic Coeffi cients</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карабутов</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Karabutov</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Д-р техн. наук, проф.</p><p>Москва</p></bio><bio xml:lang="en"/><email xlink:type="simple">kn22@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МИРЭА — Российский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA — Russian Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>14</day><month>01</month><year>2020</year></pub-date><volume>21</volume><issue>1</issue><fpage>3</fpage><lpage>13</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Commercial Publisher «New Technologies», 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Commercial Publisher «New Technologies»</copyright-holder><copyright-holder xml:lang="en">Commercial Publisher «New Technologies»</copyright-holder><license xlink:href="https://mech.novtex.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://mech.novtex.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://mech.novtex.ru/jour/article/view/742">https://mech.novtex.ru/jour/article/view/742</self-uri><abstract><p>Рассмотрена задача идентификации характеристических показателей Ляпунова динамических систем с периодическими коэффициентами в условиях неопределенности. Идентификация характеристических показателей Ляпунова выполнена на основе анализа специального класса структур, описывающих динамику их изменения. Описан метод получения структур. Введено понятие адекватности полученных оценок характеристических показателей Ляпунова. Критерий адекватности основан на анализе области определения структур. Получено решение задачи определения области, которой принадлежит множество оценок характеристических показателей Ляпунова. Пред- ложен метод оценки порядка системы. Он основан на анализе свойств почти периодических функций по Бору и предложенных структур. Рассмотрен случай, когда линеалы, соответствующие характеристическим показателям Ляпунова, могут пересекаться. Это приводит к бесконечному спектру характеристических показателей Ляпунова. Определена верхняя оценка для наименьшего показателя и граница подвижности для старшего показателя, и получено множество показателей системы. Предложен графический критерий, основанный на анализе свойств специального класса структур, для оценки адекватности оценок характеристических показателей Ляпунова. Для проверки множества полученных оценок применен метод гистограмм. Дано расширение почти периодических функций по Бору для решения рассматриваемой задачи. Получена оценка порядка системы на основе анализа структуры.</p></abstract><trans-abstract xml:lang="en"><p>The identification problem of Lyapunov exponents is considered for dynamic systems with periodic coefficients under uncertainty. Indexes identification is based on the analysis of a special class of frameworks describing dynamics of indexes change. The method of frameworks obtaining is described. The adequacy concept of obtained estimations Lyapunov exponents is introduced. The adequacy criterion is based on the analysis of the structure definition domain. The domain which belongs to the set of Lyapunov exponents estimates is determined. The method proposed for the order estimation of the system. The method is based on the properties analysis of almost periodic to Bohr functions and proposed frameworks. The case when lineals for Lyapunov exponents are crossed is considered. WE obtain to an infinite spectrum of Lyapunov exponents. Upper bound for the smallest index and mobility limit for the large index are obtained and the index set of the system is determined. The graphics criteria based on the analysis of framework properties are proposed for the adequacy estimation of obtained indexes. The histogram method is applied to check of estimations set. It is shown that a dynamic system with periodic coefficients can have a set of Lyapunov exponents. The extension of almost periodic functions on Bohr is proposed to the problem solve of Lyapunov exponents evaluation. The system order estimation is obtained on the basis of the framework property analysis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>структура</kwd><kwd>динамическая система с периодическими коэффициентами</kwd><kwd>характеристический показатель Ляпунова</kwd><kwd>почти периодические функции по Бору</kwd></kwd-group><kwd-group xml:lang="en"><kwd>framework</kwd><kwd>nonlinear dynamic system</kwd><kwd>phase portrait</kwd><kwd>structural identification</kwd><kwd>nonlinearity</kwd><kwd>synchronizability</kwd><kwd>almost periodic function on Bohr For citation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Thamilmaran K., Senthilkumar D. V., Venkatesan A., Lakshmanan M. Experimental realization of strange nonchaotic attractors in a quasiperiodically forced electronic circuit // Physical Review E. 2006. Vol. 74, N. 9. 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