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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">mireabulletin</journal-id><journal-title-group><journal-title xml:lang="ru">Russian Technological Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Technological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-3210</issn><issn pub-type="epub">2500-316X</issn><publisher><publisher-name>RTU MIREA</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2500-316X-2022-10-4-38-43</article-id><article-id custom-type="elpub" pub-id-type="custom">mireabulletin-548</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>СОВРЕМЕННЫЕ РАДИОТЕХНИЧЕСКИЕ И ТЕЛЕКОММУНИКАЦИОННЫЕ СИСТЕМЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MODERN RADIO ENGINEERING AND TELECOMMUNICATION SYSTEMS</subject></subj-group></article-categories><title-group><article-title>Параметризация пользовательских функций в цифровой обработке сигналов для получения углового сверхразрешения</article-title><trans-title-group xml:lang="en"><trans-title>Parameterization of user functions in digital signal processing for obtaining angular superresolution</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2849-0710</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щукин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchukin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щукин Андрей Алексеевич - аспирант кафедры «Прикладная математика» Института информационных технологий.</p><p>119454, Москва, пр-т Вернадского, д. 78.</p><p>ResearcherID CAG-1481-2022</p></bio><bio xml:lang="en"><p>Andrey A. Shchukin - Postgraduate Student, Applied Mathematics Department, Institute of Information Technology, MIREA - Russian Technological University.</p><p>78, Vernadskogo pr., Moscow, 119454.</p><p>ResearcherID CAG-1481-2022</p></bio><email xlink:type="simple">shchukin.a.a@edu.mirea.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/0000-0001-5967-9036</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлов</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павлов Александр Евгеньевич - аспирант кафедры «Прикладная математика» Института информационных технологий.</p><p>119454, Москва, пр-т Вернадского, д. 78.</p><p>ResearcherID CAG-1509-2022</p></bio><bio xml:lang="en"><p>Aleksandr E. Pavlov - Postgraduate Student, Applied Mathematics Department, Institute of Information Technology, MIREA - Russian Technological University.</p><p>78, Vernadskogo pr., Moscow, 119454.</p><p>ResearcherID CAG-1509-2022</p></bio><email xlink:type="simple">pavlov.a.e@edu.mirea.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>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>07</month><year>2022</year></pub-date><volume>10</volume><issue>4</issue><fpage>38</fpage><lpage>43</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Щукин А.А., Павлов А.Е., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Щукин А.А., Павлов А.Е.</copyright-holder><copyright-holder xml:lang="en">Shchukin A.A., Pavlov A.E.</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://www.rtj-mirea.ru/jour/article/view/548">https://www.rtj-mirea.ru/jour/article/view/548</self-uri><abstract><sec><title>Цели</title><p>Цели. Одна из важнейших задач развития угломерных систем - улучшение разрешающей способности по угловым координатам. Этого можно добиться двумя способами: во-первых, увеличением апертуры такой системы, что весьма дорого и часто технически трудновыполнимо; во-вторых, с помощью методов цифровой обработки сигналов. Если регистрируемые источники сигнала расположены близко друг к другу и не разрешаются по критерию Рэлея, то невозможно определить их количество, расположение и характеристики отражения. Цель работы - разработка алгоритма цифровой обработки сигналов для получения углового сверхразрешения.</p></sec><sec><title>Методы</title><p>Методы. Использованы математические методы решения обратных задач. Эти методы позволяют преодолеть критерий Рэлея, т.е. дают возможность получить угловое сверхразрешение. Данные задачи обладают неустойчивостью. Существует бесконечное количество приближенных решений, возможно возникновение ложных целей. Поиск оптимального решения проводится путем минимизации среднеквадратического отклонения.</p></sec><sec><title>Результаты</title><p>Результаты. В статье приведено описание математической модели работы угломерной системы. На основе существующих методов разработан алгоритм обработки сигнала, использующий принцип параметризации пользовательских функций. Представлены результаты численных экспериментов по достижению сверхразрешения алгебраическими методами. Проведена оценка устойчивости решения. Измерены точность и соответствие амплитуды полученных объектов начальным параметрам. Проведена оценка степени превышения критерия Рэлея полученным решением.</p></sec><sec><title>Выводы</title><p>Выводы. Показано, что алгебраические методы позволяют получать устойчивые решения с угловым сверхразрешением. Получаемые результаты правильно отражают расположение объектов с незначительной ошибкой. Ошибки в распределении амплитуды сигнала невелики, появляющиеся ложные цели имеют пренебрежимо малую амплитуду.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objectives</title><p>Objectives. One of the most important tasks in the development of goniometric systems is improving resolution in terms of angular coordinates. This can be achieved in two ways: firstly, by increasing the aperture, which is very expensive and often technically challenging to implement; secondly, with the help of digital signal processing methods. If the recorded signal sources are located close to each other and not resolved by the Rayleigh criterion, it can be impossible to determine their number, location and reflection characteristics. The aim of the present work is to develop a digital signal processing algorithm for obtaining angular superresolution.</p></sec><sec><title>Methods</title><p>Methods. Mathematical methods for solving inverse problems are used to overcome the Rayleigh criterion, i.e., obtain angular superresolution. These problems are unstable, since there is an infinite number of approximate solutions and false targets may occur. The search for the optimal solution is carried out by minimizing the standard deviation.</p></sec><sec><title>Results</title><p>Results. A description of a mathematical model for a goniometric system is presented. A signal processing algorithm is developed based on existing methods according to the principle of parameterization of user functions. Results of numerical experiments for achieving superresolution by algebraic methods are given along with an estimation of solution stability. The accuracy and correspondence of the amplitude of the obtained objects to the initial parameters are measured. The degree of excess of the Rayleigh criterion by the obtained solution is estimated.</p></sec><sec><title>Conclusions</title><p>Conclusions. Algebraic methods can be used to obtain stable solutions with angular superresolution. The results obtained correctly reflect the location of objects with a minor error. Errors in the distribution of the signal amplitude are small, appearing false targets have negligible amplitude.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>компьютерное моделирование</kwd><kwd>сверхразрешение</kwd><kwd>поиск объектов</kwd><kwd>имитационная модель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computer simulation</kwd><kwd>super resolution</kwd><kwd>object search</kwd><kwd>simulation model</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">Леховицкий Д.И. Статистический анализ сверхразрешающих методов пеленгации источников шумовых излучений при конечном объеме обучающей выборки. 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