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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2025-68-1-23-35</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-332</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, MANAGEMENT AND INFORMATION PROCESSING</subject></subj-group></article-categories><title-group><article-title>Особенности практического применения метода динамического расширения регрессора и смешивания с желаемыми показателями качества оценивания параметров</article-title><trans-title-group xml:lang="en"><trans-title>Features of practical application of the method of regressor dynamic expansion  and mixing with desired indicators of parameters estimation quality</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>Михальков</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhalkov</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никита Владимирович Михальков — аспирант; факультет систем управления и робототехники</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Nikita V. Mikhalkov — Post-Graduate Student; Faculty of Control Systems and Robotics</p><p>St. Petersburg</p></bio><email xlink:type="simple">mikh.nv@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пыркин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pyrkin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Александрович Пыркин — д-р техн. наук, профессор; факультет систем управления и робототехники; декан, профессор, вед. науч. сотр.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Anton A. Pyrkin — Dr. Sci., Professor; Faculty of Control Systems and Robotics; Dean of the Faculty</p><p>St. Petersburg</p></bio><email xlink:type="simple">pyrkin@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></aff><aff xml:lang="en"><institution>ITMO University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>10</day><month>02</month><year>2025</year></pub-date><volume>68</volume><issue>1</issue><fpage>23</fpage><lpage>35</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/332">https://pribor.ifmo.ru/jour/article/view/332</self-uri><abstract><p>Проанализированы особенности работы метода динамического расширения регрессора и смешивания и его модификаций, применяемых в задачах оценивания параметров линейного регрессионного уравнения для систем с различными свойствами. Цели исследования заключаются в определении ключевых аспектов практического применения метода динамического расширения регрессора и смешивания, сравнении паттернов применения его модификаций и в выборе наиболее эффективных решений. С помощью численного моделирования сравниваются различные модификации оригинального алгоритма, направленные на преодоление следующих проблем: относительно большое количество настраиваемых параметров, слабое возбуждение регрессора, необходимость подбора коэффициентов градиентного спуска для обеспечения сходимости по каждому из параметров за сопоставимое время, а также наличие выбросов в оценке при кусочно-постоянно заданных параметрах. Показано, что использование схем расширения позволяет сократить количество настраиваемых параметров, добавление регуляризующей матрицы к расширенному регрессору обеспечивает оценку для случаев со слабым возбуждением, нормализация возбуждения регрессора обеспечивает согласование времени сходимости оценки при различной степени возбуждении регрессора, а против выбросов в оценке параметров в случае их кусочно-постоянного задания эффективен интервальный интегральный фильтр со сбрасыванием.</p></abstract><trans-abstract xml:lang="en"><p>The features of the dynamic regressor expansion and mixing method and its modifications used in estimating the parameters of a linear regression equation for systems with different properties are analyzed. The objectives of the study are to identify key aspects of the practical application of the dynamic regressor expansion and mixing method, compare the patterns of application of its modifications, and select the most effective solutions. Numerical modeling is used to compare various modifications of the original algorithm aimed at overcoming the following problems: a relatively large number of adjustable parameters, weak excitation of the regressor, the need to select gradient descent coefficients to ensure convergence for each parameter in a comparable time, and the presence of outliers in the estimate for piecewise constant parameters. It is shown that the use of expansion schemes allows to reduce the number of adjustable parameters, adding a regularizing matrix to the expanded regressor provides an estimate for cases with weak excitation, normalization of the excitation of the regressor ensures the agreement of the convergence time of the estimate for different degrees of excitation of the regressor, and an interval integral filter with resetting is effective against outliers in the parameter estimate in the case of their piecewise constant assignment.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>метод динамического расширения регрессора</kwd><kwd>идентификация параметров</kwd><kwd>линейная регрессия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dynamic regressor extension and mixing method</kwd><kwd>parameters identification</kwd><kwd>linear regression</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">статья подготовлена при финансовой поддержке Министерства науки и высшего образования  Российской Федерации, проект № FSER-2025-0002.</funding-statement><funding-statement xml:lang="en">The article was prepared with the financial support of the Ministry of Science and Higher Education  of the Russian Federation, project No. FSER-2025-0002.</funding-statement></funding-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. 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