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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">ntv</journal-id><journal-title-group><journal-title xml:lang="ru">Научно-технический вестник информационных технологий, механики и оптики</journal-title><trans-title-group xml:lang="en"><trans-title>Scientific and Technical Journal of Information Technologies, Mechanics and Optics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-1494</issn><issn pub-type="epub">2500-0373</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2226-1494-2025-25-1-33-41</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-418</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>АВТОМАТИЧЕСКОЕ УПРАВЛЕНИЕ И РОБОТОТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AUTOMATIC CONTROL AND ROBOTICS</subject></subj-group></article-categories><title-group><article-title>Алгоритмы прямого адаптивного управления линейной системой по выходу с конечным временем настройки</article-title><trans-title-group xml:lang="en"><trans-title>Algorithms of direct output-feedback adaptive control of a linear system with finite time tuning</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8306-4138</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Герасимов</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Gerasimov</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Герасимов Дмитрий Николаевич — кандидат технических наук, доцент, доцент, старший научный сотрудник</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Dmitry N. Gerasimov — PhD, Associate Professor, Associate Professor, Senior Researcher</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">dngerasimov@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-5189-7696</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Подошкин</surname><given-names>Д. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Podoshkin</surname><given-names>D. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Подошкин Дмитрий Леонидович — аспирант</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Dmitry L. Podoshkin — PhD Student</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">dpodoshkin@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4860-5407</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никифоров</surname><given-names>В. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikiforov</surname><given-names>V. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никифоров Владимир Олегович — доктор технических наук, профессор, проректор по научной работе</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Vladimir O. Nikiforov — D.Sc., Professor, Vice-Rector for Scientific Affairs</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">nikiforov_vo@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>28</day><month>02</month><year>2025</year></pub-date><volume>25</volume><issue>1</issue><fpage>33</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Герасимов Д.Н., Подошкин Д.Л., Никифоров В.О., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Герасимов Д.Н., Подошкин Д.Л., Никифоров В.О.</copyright-holder><copyright-holder xml:lang="en">Gerasimov D.N., Podoshkin D.L., Nikiforov V.O.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://ntv.elpub.ru/jour/article/view/418">https://ntv.elpub.ru/jour/article/view/418</self-uri><abstract><p>Введение. Рассмотрена задача прямого адаптивного управления с эталонной моделью линейными параметрически неопределенными системами с недоступным измерению вектором состояния. В целях адаптивной настройки параметров регулятора предлагается модификация градиентного алгоритма адаптации со сходимостью за конечное время. Модификация осуществляется путем периодического пересчета значений настраиваемых параметров с последующей подстановкой в качестве начальных условий на интеграторах стандартного градиентного алгоритма адаптации. Пересчет выполняется при обеспечении условия интервального возбуждения на основе предсказания динамики алгоритма адаптации, в результате точно идентифицируются параметры регулятора. Метод. Задача управления решается с помощью метода расширенной ошибки и метода непосредственной компенсации. Анализ замкнутой системы проводится на основе метода функций Ляпунова. Основные результаты. Предложена модификация градиентного алгоритма адаптации с ускоренной параметрической сходимостью за конечное время. Обсуждение. Модификация обеспечивает сходимость параметров при условии интервального возбуждения, которое является более слабым по отношению к условию неисчезающего возбуждения. Представленный алгоритм обладает чувствительностью к вариациям неизвестных параметров объекта и не требует в отличии от множества аналогичных решений повышения динамического порядка регулятора. Дополнительной особенностью нового алгоритма является возможность его использования в схемах как непрямого, так и прямого адаптивного управления.</p></abstract><trans-abstract xml:lang="en"><p>A problem of direct model reference adaptive control of parametrically uncertain systems with inaccessible for measurement state is considered in this paper. With the purpose of adaptive tuning of the controller parameters, a modification of the gradient adaptation algorithm with finite time convergence is proposed. The modification is implemented by periodic recalculation of the adjustable parameters and further their replacement in the integrators of the gradient adaptation algorithm. Preliminary calculation is accomplished under condition of interval excitation based on prediction of the adaptation algorithm dynamics; hence the controller parameters are identified precisely. The control problem is solved with the use of augmented error approach and certainty equivalence principle. Analysis of the closed-loop system is made using the Lyapunov functions method. The modification ensures parametric convergence under interval excitation condition which is weaker than the persistent excitation one, sensitive to variations of the unknown parameters, and, in comparison with the variety of analogous solutions, does not require the dynamic order increasing. The other distinguishing feature of the algorithm is opportunity of its use in schemes of both indirect and direct adaptation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>адаптивное управление с эталонной моделью</kwd><kwd>алгоритм адаптации с конечным временем сходимости</kwd></kwd-group><kwd-group xml:lang="en"><kwd>model reference adaptive control</kwd><kwd>adaptation algorithm with finite time convergence</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">Ioannou P.A., Sun J. Robust Adaptive Control. NJ: Prentice-Hall, 1996. 825 p.</mixed-citation><mixed-citation xml:lang="en">Ioannou P.A., Sun J. Robust Adaptive Control. NJ: Prentice-Hall, 1996. 825 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Narendra K.S., Annaswamy A.M. Stable Adaptive Systems. 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