Modeling of systems and processes Modeling of systems and processes Моделирование систем и процессов 2219-0767 90814 10.12737/2219-0767-2024-17-4-53-59 Технические науки Технические науки Application of electrodynamic technology study to determine the scattering efficiency of small objects Применение технологий электродинамического моделирования для определения эффективной площади рассеяния малых объектов Ищенко Евгений Алексеевич Ishchenko Evgeny Alekseevich Федоров Сергей Михайлович Fedorov Sergei Mikhajlovich Федоров Дмитрий Михайлович Fedorov Dmitriy Mihaylovich FDM@myrambler.ru

кандидат технических наук;

candidate of technical sciences;

 Воронежский государственный лесотехнический университет имени Г.Ф. Морозова Voronezh State University of Forestry and Technologies named after G.F. Morozov 27 12 2024 27 12 2024 17 4 53 59 16 11 2024 15 11 2024 https://zh-szf.ru/en/nauka/article/90814/view

В статье рассматриваются методы расчета эффективной площади рассеяния (ЭПР) сложных объектов. Для ана-лиза была выбрана задача расчета характеристик мало-го беспилотного летательного аппарата с использовани-ем метода конечных элементов в электродинамике для корпуса из идеально проводящего материала, а также с указанием материалов. Дополнительно моделирование выполнялось с использованием асимптотических методов в электродинамике, которые направлены на реализацию теории геометрической и физической оптики для электродинамически крупных задач. Моделирование выполнялось в DS CST Studio Suite 2024, что позволило использовать наиболее современные методы оптимизации расчетов, а также графические ускорители, что позволило повысить точность определения характеристик объектов. Статья содержит математическое описание методов моделирования, а также результаты их приме-нения в задачах расчета эффективной площади рассеяния. Полученные результаты показывают, что асимптотические методы позволяют в первую очередь оценить влияние геометрических характеристик корпуса на картины отраженных полей, при этом удается значительно повысить скорость расчетов. Применение же методов конечных элементов позволяет учитывать большее число факторов, как суперпозиция полей, потери в материалах, так как они позволяют решать уравнения Максвелла с наибольшей точностью, однако расчеты таким методом требуют больших вычисли-тельных мощностей, а также большего времени

The article studies the methods for calculating the radar cross section (RCS) of complex objects. For the analysis, the problem of calculating the characteristics of a linear un-manned aerial vehicle was selected using the finite element method of electrodynamics for a body made of a perfectly conducting material, as well as with the reduction of materi-als. Additional modeling was carried out using asymptotic meth-ods in electrodynamics, which are aimed at implement-ing the principles of geometric and physical op-tics to solve electrodynamically complex problems. Modeling is per-formed in DS CST Studio Suite 2024, which allows using the most modern optimization methods, as well as graphic accelerators that increase the accuracy of determining the characteristics of objects. The article contains a mathemati-cal descrip-tion of the modeling methods, as well as the re-sults of their application in problems of calculating effec-tive scattering. The results show that asymptotic methods allow, first of all, to estimate the influence of the geometric charac-teristics of the object on the patterns of reflected fields, while the conditions sig-nificantly increase the speed of calcula-tions. The use of finite element methods allows taking into ac-count a larger number of factors, such as superposition of fields, losses in materials, since they allow solving Max-well's equations with the greatest force, but calculations using this method require greater computing power, as well as more time

 электродинамическое моделирование эффективная площадь рассеяния асимптотические методы в электро-динамике метод конечных элементов electrodynamic modeling radar cross section asymptotic methods in electrodynamics finite element method

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