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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">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2021-24-5-66-79</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-555</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>РАДИОЛОКАЦИЯ И РАДИОНАВИГАЦИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADAR AND NAVIGATION</subject></subj-group></article-categories><title-group><article-title>Моделирование поля рассеяния противотанковой ракеты FGM-148 Javelin в САПР Altair Feko</article-title><trans-title-group xml:lang="en"><trans-title>Modeling of the Scattering Field of an FGM-148 Javelin Anti-Tank Missile in Altair Feko</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>Купряшкин</surname><given-names>И. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Kupryashkin</surname><given-names>I. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Купряшкин Иван Фёдорович – доцент (2011), доктор технических наук (2017), начальник кафедры боевого применения средств РЭБ (с воздушно-космическими системами управления и наводящимся оружием)</p><p>ул. Старых Большевиков, д. 54 А, Воронеж, 394064, Россия</p></bio><bio xml:lang="en"><p>Ivan F. Kupryashkin, Assosiate Professor (2011), Ph. D. in Engineering (2017), Head of the Departament of Сombat Use of Electronic Warfare Systems (with Aerospace Control Systems and Guided Weapons)</p><p>17/2 Doroznaya St., Voronezh, 394038 Russia</p></bio><email xlink:type="simple">ifk78@mail.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>Заводских</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavodskyh</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Заводских Кирилл Юрьевич – инженер-технолог</p><p>ул. Дорожная, д. 17/2, Воронеж, 394038, Россия</p></bio><bio xml:lang="en"><p>Kirill Yu. Zavodskyh, Dipl. Eng. (2001)</p><p>54A Starykh Bolshevikov St., Voronezh, 394064 Russia</p></bio><email xlink:type="simple">zavodsckih.kirill@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ВУНЦ ВВС «Военно-воздушная академия им. проф. Н. Е. Жуковского и Ю. А. Гагарина»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ME&amp;SC of the Air Force "Air Force Academy n. a. Professor N. E. Zhukovsky and Yu. A. Gagarin"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО «НПО Корпорация "РИФ"»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC «NPO Corporation "RIF"»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>11</month><year>2021</year></pub-date><volume>24</volume><issue>5</issue><fpage>66</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Купряшкин И.Ф., Заводских К.Ю., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Купряшкин И.Ф., Заводских К.Ю.</copyright-holder><copyright-holder xml:lang="en">Kupryashkin I.F., Zavodskyh K.Y.</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://re.eltech.ru/jour/article/view/555">https://re.eltech.ru/jour/article/view/555</self-uri><abstract><sec><title>Введение</title><p>Введение. Системы автоматизированного проектирования СВЧ-устройств являются эффективным инструментом оценки отражающих характеристик объектов сложной формы. Однако проведение этих расчетов часто сопряжено со значительными вычислительными затратами, особенно при больших значениях отношения характерных размеров объекта к длине волны. Использование асимптотических методов в сочетании с укрупнением сетки разбиения модели объекта позволяет существенно снизить эти затраты, однако в каждом практическом случае это приводит к труднопрогнозируемому ухудшению точности получаемых оценок. Цель работы. Проведение сравнительной оценки результатов моделирования поля рассеяния в САПР СВЧ-устройств при использовании различных методов расчета и детализации модели объекта в дециметровом и сантиметровом диапазонах длин волн.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В качестве объекта рассматривается противотанковая управляемая ракета FGM-148 Javelin, моделирование поля рассеяния осуществляется в САПР СВЧ-устройств Altair FEKO методами моментов и физической оптики в диапазоне частот от 1 до 10 ГГц и углов от 0 до 180°. Осуществляется сравнение одномерных диаграмм обратного рассеяния и двумерных радиолокационных портретов, полученных с использованием указанных методов.</p></sec><sec><title>Результаты</title><p>Результаты. Для рассматриваемого класса объектов использование метода физической оптики обеспечивает приемлемую точность результатов на частотах от 5 ГГц и выше при шаге разбиения поверхности модели около одного сантиметра и общей продолжительности расчета в пределах единиц минут (ПЭВМ Intel Core i5-4460/3,2 ГГц/ОЗУ 8 Мбайт). На меньших частотах приемлемая точность и аналогичная продолжительность расчетов достигаются при расчете методом моментов и шаге разбиения около 20 см. Продемонстрирована возможность применения САПР Altair FEKO для моделирования двумерных радиолокационных портретов объектов с разрешением не хуже 20 см.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные результаты дополняют известные исследования в области сравнительной оценки временных и точностных характеристик различных методов расчета поля рассеяния объектов сложной формы в САПР СВЧ-устройств.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Computer-aided design systems for microwave devices are an effective tool for assessing the backscattering characteristics of complex-shaped objects. However, these calculations are often associated with significant computational costs, especially at large values of the ratio of the characteristic dimensions of the object to the wavelength. The use of asymptotic methods in combination with the mesh coarsening of object partition can significantly reduce these costs. However, in each practical case, this leads to a deterioration in the accuracy of the estimates obtained, which is hard to predict.</p></sec><sec><title>Aim</title><p>Aim. Comparative assessment of the results of modeling the scattering field in the CAD of microwave devices using various methods for calculating and detailing the object model in the decimeter and centimeter wavelength ranges.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The research object was an anti-tank guided missile FGM-148 Javelin. The scattering field of Altair FEKO microwave devices was modeled in CAD using the methods of moments and physical optics in the frequency range from 1 to 10 GHz and angles from 0 to 180°. A comparison of one-dimensional backscatter diagrams and radar images obtained using these methods was carried out.</p></sec><sec><title>Results</title><p>Results. For the class of objects under consideration, the method of physical optics provides acceptable accuracy at frequencies of 5 GHz and higher with a step of partitioning the model surface of the order of one centimeter and a total calculation duration of the order of several minutes (Intel Core i5-4460 PC / 3.2 GHz / 8 MB RAM). At lower frequencies, acceptable accuracy and a similar calculation duration are achieved when calculating by the method of moments and a partitioning step of about 20 cm. The possibility of using the Altair FEKO CAD system for modeling radar images of objects with a resolution of at least 20 cm is demonstrated.</p></sec><sec><title>Conclusion</title><p>Conclusion. The results obtained complement the well-known studies in the field of comparative assessment of the time and accuracy characteristics of various methods for calculating the scattering field of objects in the CAD of microwave devices.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>диаграмма обратного рассеяния</kwd><kwd>эффективная поверхность рассеяния</kwd><kwd>метод физической оптики</kwd><kwd>метод моментов</kwd><kwd>двумерный радиолокационный портрет</kwd><kwd>противотанковая управляемая ракета</kwd></kwd-group><kwd-group xml:lang="en"><kwd>backscatter diagram</kwd><kwd>radar cross section</kwd><kwd>physical optics</kwd><kwd>method of moments</kwd><kwd>radar image</kwd><kwd>anti-tank guided missile</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">Гусев Д. А. Комплексы активной защиты // Изв. ТулГУ. Техн. науки. 2016. Вып. 12, ч. 4. C. 90-104. 2. 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