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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">sibsutis</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник СибГУТИ</journal-title><trans-title-group xml:lang="en"><trans-title>The Herald of the Siberian State University of Telecommunications and Information Science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6920</issn><publisher><publisher-name>СибГУТИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55648/1998-6920-2024-18-4-76-86</article-id><article-id custom-type="elpub" pub-id-type="custom">sibsutis-904</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Алгоритм символьной синхронизации по отсчетам комплексной огибающей с элементами адаптивности для модуляции DQPSK</article-title><trans-title-group xml:lang="en"><trans-title>The algorithm of symbolic synchronization based on complex envelope counts with adaptivity elements for DQPSK modulation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-7869-1203</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончаров</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гончаров Даниил Андреевич - ассистент кафедры инфокоммуникационных систем и сетей,</p><p>630102, Новосибирск, ул. Кирова, д. 86.</p></bio><bio xml:lang="en"><p>Daniil A. Goncharov - Assistant of the Department of Infocommunication Systems and Networks,</p><p>86, Kirova St., Novosibirsk, 630102.</p></bio><email xlink:type="simple">denn102@bk.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/0009-0006-5814-9352</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Максимов</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Maximov</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максимов Иван Николаевич - ведущий инженер кафедры инфокоммуникационных систем и сетей,</p><p>630102, Новосибирск, ул. Кирова, д. 86.</p></bio><bio xml:lang="en"><p>Ivan N. Maximov - Leading Engineer of the Department of Infocommunication Systems and Networks,</p><p>86, Kirova St., Novosibirsk, 630102.</p></bio><email xlink:type="simple">ivan.maximov@mail.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/0000-0003-1646-6844</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мелентьев</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Melentyev</surname><given-names>O. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мелентьев Олег Геннадьевич  - д.т.н., профессор кафедры инфокоммуникационных систем и сетей,</p><p>630102, Новосибирск, ул. Кирова, д. 86.</p></bio><bio xml:lang="en"><p>Oleg G. Melentyev - Doctor of Technical Sciences, Professor of the Department of Infocommunication Systems and Networks, </p><p>86, Kirova St., Novosibirsk, 630102.</p></bio><email xlink:type="simple">melog.aes@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный университет телекоммуникаций и информатики (СибГУТИ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State University of Telecommunications and Informatics (SibSUTIS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>07</month><year>2024</year></pub-date><volume>18</volume><issue>4</issue><issue-title>Вестник СибГУТИ</issue-title><fpage>76</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гончаров Д.А., Максимов И.Н., Мелентьев О.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Гончаров Д.А., Максимов И.Н., Мелентьев О.Г.</copyright-holder><copyright-holder xml:lang="en">Goncharov D.A., Maximov I.N., Melentyev O.G.</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://vestnik.sibsutis.ru/jour/article/view/904">https://vestnik.sibsutis.ru/jour/article/view/904</self-uri><abstract><p>В статье предложен алгоритм символьной синхронизации по отсчетам комплексной огибающей, без использования фазовой автоподстройки, частоты (ФАПЧ) для DQPSK модуляции. Проведено моделирование данного алгоритма, определено среднее время вхождения в синхронизм и вероятность ошибок.</p></abstract><trans-abstract xml:lang="en"><p>An algorithm for symbol synchronization based on complex envelope samples for DQPSK modulation is proposed. The algorithm does not use phase locked loop (PLL). The simulation of this algorithm is carried out, the average time of entering into synchronism and the probability of errors are determined.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>символьная синхронизация</kwd><kwd>вероятность ошибки</kwd><kwd>время синхронизации</kwd><kwd>ошибка синхронизации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>symbol synchronization</kwd><kwd>error probability</kwd><kwd>synchronization time</kwd><kwd>synchronization error</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">Бернард C. Цифровая связь. 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