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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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">izmertech-730</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>ИЗМЕРЕНИЕ ВРЕМЕНИ И ЧАСТОТЫ</subject></subj-group></article-categories><title-group><article-title>Алгоритм формирования выходного сигнала группового эталона частоты</article-title><trans-title-group xml:lang="en"><trans-title></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>Мишагин</surname><given-names>К. Г.</given-names></name></name-alternatives><email xlink:type="simple">mishagin@vremya-ch.com</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>Подогова</surname><given-names>С. Д.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Чернышев</surname><given-names>И. Н.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Медведев</surname><given-names>С. Ю.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>«Время-Ч»</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>07</day><month>02</month><year>2023</year></pub-date><volume>0</volume><issue>8</issue><fpage>34</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/730">https://www.izmt.ru/jour/article/view/730</self-uri><abstract><p>Предложен алгоритм формирования выходного сигнала группового эталона частоты, использующий управление частотой вспомогательного кварцевого генератора на двух временных масштабах. Алгоритм можно применять в системах резервирования выходного сигнала эталона, основанных на синхронизации вспомогательного генератора относительно нескольких стандартов частоты и времени.</p></abstract><trans-abstract xml:lang="en"><p>The automatic frequency control of auxiliary crystal oscillator algorithm based on two time-scales frequency measurements is proposed for formation of output signal of atomic clock ensemble. The algorithm can be realized in atomic clock combining systems based on the synchronization of auxiliary oscillator by several atomic clocks of the ensemble.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>групповой эталон частоты и времени</kwd><kwd>нестабильность частоты</kwd><kwd>вариация Аллана</kwd><kwd>ensemble of atomic clocks</kwd><kwd>frequency instability</kwd><kwd>Allan variation</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">Bauch A. 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