<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">tuzsut</journal-id><journal-title-group><journal-title xml:lang="ru">Труды учебных заведений связи</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Telecommunication Universities</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-324X</issn><issn pub-type="epub">2712-8830</issn><publisher><publisher-name>СПбГУТ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31854/1813-324X-2022-8-1-27-33</article-id><article-id custom-type="elpub" pub-id-type="custom">tuzsut-307</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>ЭЛЕКТРОНИКА, ФОТОНИКА, ПРИБОРОСТРОЕНИЕ И СВЯЗЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, PHOTONICS, INSTRUMENTATION AND COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Реализации оптимального некогерентного демодулятора частотно-модулированного сигнала</article-title><trans-title-group xml:lang="en"><trans-title>Frequency Modulated Signal’s Optimum Noncoherent Demodulator Performance</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6742-2705</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Брусин</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Brusin</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Брусин Ефим Александрович – ведущий инженер АО «Российский институт радионавигации и времени»; доцент кафедры электроники и схемотехники Санкт-Петербургского государственного университета телекоммуникаций им. проф. М.А. Бонч-Бруевича</p><p>Санкт-Петербург, 192012; Санкт-Петербург, 193232</p></bio><bio xml:lang="en"><p>St. Petersburg, 192012; St. Petersburg, 193232</p></bio><email xlink:type="simple">yefim07@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">АО «Российский институт радионавигации и времени»; &#13;
Санкт-Петербургский государственный университет телекоммуникаций им. проф. М.А. Бонч-Бруевича<country>Россия</country></aff><aff xml:lang="en">Russian Institute of Radionavigation and Time; &#13;
The Bonch-Bruevich Saint Petersburg State University of Telecommunications<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>01</day><month>04</month><year>2022</year></pub-date><volume>8</volume><issue>1</issue><fpage>27</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Брусин Е.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Брусин Е.А.</copyright-holder><copyright-holder xml:lang="en">Brusin E.</copyright-holder><license 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://tuzs.sut.ru/jour/article/view/307">https://tuzs.sut.ru/jour/article/view/307</self-uri><abstract><p>В работе обсуждаются вопросы реализации демодулятора частотно-модулированных сигналов. Показано, что ключевой проблемой, возникающей при реализации демодулятора, является проблема тактовой синхронизации (синхронизации по символам). Предложена реализация схемы синхронизации по символам на основе методов передискретизации. Приведены результаты моделирования процедуры демодуляции частотно-модулированного сигнала. На основании полученных результатов предложена схема оптимального некогерентного демодулятора частотно-модулированного сигнала, включающая в себя схему тактовой синхронизации. Показано, что практическая реализация демодулятора обеспечивает характеристики, близкие к потенциальной помехоустойчивости. На основе результатов, представленных в работе, могут быть построены приемные устройства различных широкополосных сигналов.</p></abstract><trans-abstract xml:lang="en"><p>The article considers optimum noncoherent demodulator scheme. The symbol synchronization is key problem of demodulator’s performance. It is offered the resampler symbol synchronization sсhem. Modeling demodulator algorithm results is shown. The modeling results let to propose the optimum noncoherent demodulator scheme. It is shown that the demodulator provided near to ideal noncoherent performance. Based on the results presented in the paper, receivers of various broadband signals can be constructed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>частотная модуляция</kwd><kwd>оптимальный некогерентный демодулятор</kwd><kwd>интерполятор</kwd><kwd>передискретизация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>frequency modulation</kwd><kwd>optimum noncoherent demodulator</kwd><kwd>interpolator</kwd><kwd>resampling</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">Финк Л.М. Теория передачи дискретных сообщений. М.: Изд-во «Советское радио», 1970. 728 с.</mixed-citation><mixed-citation xml:lang="en">Fink L.M. Theory of Transmission of Discrete Messages. Moscow: Sovetskoe radio Publ.; 1970. 728 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Simon M., Springett J. The Performance of a Noncoherent FSK Receiver Preceded by a Bandpass Limiter // IEEE Transactions on Communications. 1972. Vol. 20. Iss. 6. PP. 1128‒1136. DOI:10.1109/TCOM.1972.1091299</mixed-citation><mixed-citation xml:lang="en">Simon M., Springett J. The Performance of a Noncoherent FSK Receiver Preceded by a Bandpass Limiter. IEEE Transactions on Communications. 1972;20(6):1128‒1136. DOI:10.1109/TCOM.1972.1091299</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Shiung D., Ferng H.W., Lyons R. Filtering Tricks for FSK Demodulation // IEEE Signal Processing Magazine. 2005. Vol. 22. Iss. 3. PP. 80–82. DOI:10.1109/MSP.2005.1425911</mixed-citation><mixed-citation xml:lang="en">Shiung D., Ferng H.W., Lyons R. Filtering Tricks for FSK Demodulation. IEEE Signal Processing Magazine. 2005;22(3): 80–82. DOI:10.1109/MSP.2005.1425911</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Middlestead R.W. Digital Communications with Emphasis on Data Modems. Theory, Analysis, Design, Simulation, Testing, and Applications. John Wiley &amp; Sons, 2017. 824 p.</mixed-citation><mixed-citation xml:lang="en">Middlestead R.W. Digital Communications with Emphasis on Data Modems. Theory, Analysis, Design, Simulation, Testing, and Applications. John Wiley &amp; Sons; 2017. 824 p.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Гинзбург В.В., Каяцкас А.А. Теория синхронизации демодуляторов. М.: Связь, 1974. 215 с.</mixed-citation><mixed-citation xml:lang="en">Ginzburg V.V., Kayackas A.A. Demodulator Timing Theory. Moscow: Sviaz Publ.; 1974. 215 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Mengali U., D’Andrea A.N. Synchronization Technique for Digital Receivers. Applications of Communications Theory. New York: Plenum Press, 1997. 533 p. DOI:10.1007/978-1-4899-1807-9</mixed-citation><mixed-citation xml:lang="en">Mengali U., D’Andrea A.N. Synchronization Technique for Digital Receivers. Applications of Communications Theory. New York: Plenum Press; 1997. 533 p. DOI:10.1007/978-1-4899-1807-9</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Meyer H., Moeneclaey M., Fechtel S.A. Digital Communication Receivers. New York: John Wiley&amp;Sons, Inc., 1998.</mixed-citation><mixed-citation xml:lang="en">Meyer H., Moeneclaey M., Fechtel S.A. Digital Communication Receivers. New York: John Wiley&amp;Sons, Inc.; 1998.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Hogenauer E. An economical class of digital filters for decimation and interpolation // IEEE Тransactions on Acoustics, Speech, and Signal Processing. 1981. Vol. 29. Iss. 2. PP. 155‒162. DOI:10.1109/TASSP.1981.1163535</mixed-citation><mixed-citation xml:lang="en">Hogenauer E. An economical class of digital filters for decimation and interpolation. IEEE Тransactions on Acoustics, Speech, and Signal Processing. 1981;29(2):155‒162. DOI:10.1109/TASSP.1981.1163535</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Gardner F.M. Interpolation in digital modems: Part I. Fundamentals // IEEE Transactions on Communications. 1993. Vol. 41. Iss. 3. PP. 501‒507. DOI:10.1109/26.221081</mixed-citation><mixed-citation xml:lang="en">Gardner F.M. Interpolation in digital modems: Part I. Fundamentals. IEEE Transactions on Communications. 1993; 41(3):501‒507. DOI:10.1109/26.221081</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Erup L., Gardner F. M., Harris R.A. Interpolation in digital modems: Part II. Implementation and performance // IEEE Transactions on Communications. 1993. Vol. 41. Iss. 6. PP. 998‒1008. DOI:10.1109/26.231921</mixed-citation><mixed-citation xml:lang="en">Erup L., Gardner F. M., Harris R.A. Interpolation in digital modems: Part II. Implementation and performance. IEEE Transactions on Communications. 1993;41(6):998‒1008. DOI:10.1109/26.231921</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Mueller K., Muller M. Timing Recovery in Digital Synchronous Data Receivers // IEEE Transactions on Communications. 1976. Vol. 24. Iss. 5. PP. 516‒531. DOI:10.1109/TCOM.1976.1093326</mixed-citation><mixed-citation xml:lang="en">Mueller K., Muller M. Timing Recovery in Digital Synchronous Data Receivers. IEEE Transactions on Communications. 1976;24(5):516‒531.      DOI:10.1109/TCOM.1976.1093326</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
