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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">mathematics</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник российских университетов. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Universities Reports. Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-9667</issn><issn pub-type="epub">2782-3342</issn><publisher><publisher-name>Тамбовский государственный университет имени Г.Р. Державина</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20310/2686-9667-2023-28-144-406-413</article-id><article-id custom-type="elpub" pub-id-type="custom">mathematics-117</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>НАУЧНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>О некотором классе уравнений Вольтерра I рода в задаче идентификации линейной нестационарной динамической системы</article-title><trans-title-group xml:lang="en"><trans-title>On a class of the first kind Volterra equations in a problem of identification of a linear nonstationary dynamic system</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6162-7542</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Солодуша</surname><given-names>Светлана Витальевна</given-names></name><name name-style="western" xml:lang="en"><surname>Solodusha</surname><given-names>Svetlana V.</given-names></name></name-alternatives><email xlink:type="simple">solodusha@isem.irk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН «Институт систем энергетики им. Л. А. Мелентьева» Сибирского отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Melentiev Energy Systems Institute of the Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>07</day><month>12</month><year>2023</year></pub-date><volume>28</volume><issue>144</issue><fpage>406</fpage><lpage>413</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Солодуша С.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Солодуша С.В.</copyright-holder><copyright-holder xml:lang="en">Solodusha S.V.</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://mathematics.elpub.ru/jour/article/view/117">https://mathematics.elpub.ru/jour/article/view/117</self-uri><abstract><p>В статье предложен подход к идентификации нестационарной линейной динамической системы. Ее математическая модель типа «вход-выход» представлена в виде уравнения Вольтерра I рода. Задача непараметрической идентификации ядер Вольтерра решается на основе активного эксперимента с помощью тестовых сигналов кусочно-линейного вида (имеющих фронт нарастания). Постановка задачи исходит из условий моделирования динамики технических устройств тепло- и электроэнергетики. Выбор допустимого семейства входных сигналов обусловлен сложностью формирования сигналов кусочно-постоянного типа для реальных энергетических объектов. Исходная задача сводится к решению интегральных уравнений Вольтерра I рода с двумя переменными пределами интегрирования. Построена формула обращения выделенных интегральных уравнений. Получены достаточные условия разрешимости соответствующих уравнений относительно ядер Вольтерра в классе непрерывных функций.</p></abstract><trans-abstract xml:lang="en"><p>This paper proposes an approach to the identification of a nonstationary linear dynamic system. Its input-output mathematical model is presented as a Volterra equation of the first kind. The problem of nonparametric identification of Volterra kernels is solved on the basis of an active experiment using test piecewise linear signals (that have a rising front). The problem statement is based on the conditions for modeling the dynamics of technical devices in the energy and power industry. The choice of an admissible family of input signals is driven by the complexity of generating piecewise-constant type signals for real energy objects. The original problem is reduced to solving Volterra integral equations of the first kind with two variable integration limits. A formula for the inversion of the integral equations under study is constructed. Sufficient conditions are obtained for the solvability of the corresponding equations with respect to Volterra kernels in the class of continuous functions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уравнения Вольтерра I рода с двумя переменными пределами интегрирования</kwd><kwd>идентификация</kwd><kwd>динамическая система</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Volterra equations of the first kind with two variable limits of integration</kwd><kwd>identification</kwd><kwd>dynamic system</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в Институте систем энергетики им. Л. А. Мелентьева СО РАН (ИСЭМ СО РАН) за счет гранта Российского научного фонда (проект № 22-21-00409, https://rscf.ru/project/22-21-00409/).</funding-statement><funding-statement xml:lang="en">The study was carried out at the Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences and funded by the Russian Science Foundation (project no. 22-21-00409, https://rscf.ru/en/project/22-21-00409/).</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">D. Graupe, Identification of System, R. E. Krieger Pub. Co., Huntington-New York, 1976.</mixed-citation><mixed-citation xml:lang="en">D. Graupe, Identification of System, R. E. Krieger Pub. Co., Huntington-New York, 1976.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">V. Boss, Lectures on Management Theory. 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