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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">10.32603/1993-8985-2022-25-2-29-39</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-616</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>ПРОЕКТИРОВАНИЕ И ТЕХНОЛОГИЯ РАДИОЭЛЕКТРОННЫХ СРЕДСТВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ENGINEERING DESIGN AND TECHNOLOGIES OF RADIO ELECTRONIC FACILITIES</subject></subj-group></article-categories><title-group><article-title>Анализ состава нелинейных искажений при видеоимпульсных воздействиях с применением поведенческих нелинейных моделей электрических цепей</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of the Structure of Nonlinear Distortions at Baseband Pulse Impacts Using Behavioral Nonlinear Models of Electrical Circuits</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5470-1185</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенов</surname><given-names>Э. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Semyonov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> доктор технических наук (2012), доцент (2009), старший научный сотрудник; профессор кафедры радиоэлектроники и систем связи </p><p>пр. Академический, д. 2/3, Томск, 634055, Россия</p></bio><bio xml:lang="en"><p> Dr Sci. (Eng.) (2012), Associate Professor (2009), Senior Researcher; Professor of the Department of Radioelectronics and Communication Systems</p><p>2/3, Akademichesky Av., Tomsk 634055, Russia </p></bio><email xlink:type="simple">edwardsemyonov@narod.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт сильноточной электроники Сибирского отделения Российской академии наук;&#13;
Томский государственный университет систем управления и радиоэлектроники</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of High Current Electronics SBRAS;&#13;
Tomsk State University of Control Systems and Radioelectronics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>27</day><month>04</month><year>2022</year></pub-date><volume>25</volume><issue>2</issue><fpage>29</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Семенов Э.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Семенов Э.В.</copyright-holder><copyright-holder xml:lang="en">Semyonov E.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://re.eltech.ru/jour/article/view/616">https://re.eltech.ru/jour/article/view/616</self-uri><abstract><p>Введение. Измерение нелинейных искажений видеоимпульсных сигналов представляет проблему, поскольку они имеют сплошной спектр. Для селекции сигнала нелинейных искажений в указанном случае применяют сравнение двух откликов объекта на два различных тестовых сигнала или сравнение отклика реального объекта и его линеаризованной модели. Такой подход не позволяет разделить различные физические факторы, приводящие к возникновению нелинейных искажений, что затрудняет последующую оптимизацию устройств.Цель работы. Рассмотреть метод, который позволяет определить вклад различных источников в нелинейные искажения видеоимпульсных сигналов устройством.Материалы и методы. Принцип рассматриваемого метода состоит в построении нелинейной поведенческой модели объекта и сравнении выходных сигналов модели при линеаризации некоторых (или всех) ее характеристических функций. Это дает возможность оценить вклад безынерционной, емкостной нелинейностей и нелинейности, связанной с рециркуляцией сигнала в обратных связях. Исследование выполнено на примере трехкаскадного усилителя видеоимпульсных сигналов (тестовые сигналы – ступенчатые функции), для которого синтезирована поведенческая модель в виде нелинейного рекурсивного фильтра второго порядка.Результаты. Полный сигнал нелинейных искажений, полученный рассмотренным методом, оказался близок к сигналу, получаемому при вычитании откликов на два различных тестовых воздействия. Разделены искажения, обусловленные нелинейностями статической амплитудной характеристики и реактивностей емкостного характера, а также рециркуляцией энергии между реактивными накопителями разных типов. Установлено, что нелинейность амплитудной характеристики сказывается после окончания переходного процесса, нелинейность емкостного характера – в начале переходного процесса, а нелинейность рециркуляции энергии – в его средней части. Проиллюстрировано, что даже части нелинейных искажений ступенчатого сигнала, обусловленные отдельными физическими факторами нелинейности, превышают гармонические искажения радиоимпульсного сигнала.Заключение. Рассмотренный метод представляется наиболее полезным при проектировании широкополосных устройств с обратными связями, поскольку область влияния нелинейности рециркуляции энергии оказывается сдвинутой далеко за пределы визуального окончания переходного процесса.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Measuring harmonic distortions of a baseband pulse signal constitutes a problem due to the continuous nature of their spectrum. In order to obtain nonlinear distortions of a signal, a comparison should be conducted either of the object’s responses to two different test signals or those of the real object and its linearized model. However, such an approach does not distinguish between various physical factors that cause nonlinear distortions. This, as a result, complicates the optimization of devices.Aim. To develop an approach capable of determining the contribution of various sources to the nonlinear distortion of baseband pulse signals.Materials and methods. The method under consideration involves a synthesis of a nonlinear behavioral model for an object and a comparison of the model’s output signals when linearizing some (or all) of the characteristic functions in this model. This allows distinguishing the contribution of inertialess, capacitive nonlinearity and nonlinearity associated with signal recirculation in feedbacks. An example of a three-stage baseband pulse amplifier (with step functions as test signals) is provided, for which a behavioral model was synthesized in the form of a second-order nonlinear recursive filter.Results. The aggregate signal of nonlinear distortions obtained using the presented method was found to be similar to that obtained by subtracting the responses to two different test signals. Further, the distortions caused by static amplitude nonlinearity, capacitive reactivity nonlinearity and energy recirculation between different reactive storages were distinguished. The nonlinearity of the amplitude characteristic exhibits its effect at the end of the transient process, the nonlinearity with the capacitive nature – at the beginning of the transient process, and the nonlinearity of energy recirculation – in the middle part of the transient process. It is shown that even parts of the nonlinear distortions at step impact, caused by individual physical nonlinearity factors, exceed the harmonic distortions of a RF-pulse signal.Conclusion. The considered method is particularly useful when designing wideband devices with feedbacks, since the nonlinearity of energy recirculation takes effect long after the visual end of the transient process.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нелинейные искажения</kwd><kwd>видеоимпульсные сигналы</kwd><kwd>нелинейные поведенческие модели</kwd><kwd>безынерционная нелинейность</kwd><kwd>реактивная нелинейность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nonlinear distortion</kwd><kwd>baseband pulse signals</kwd><kwd>nonlinear behavioral models</kwd><kwd>inertialess nonlinearity</kwd><kwd>reactive nonlinearity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования Российской Федерации (тема № FWRM-2021-0015).</funding-statement><funding-statement xml:lang="en">The work was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (the project no. 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