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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 pub-id-type="doi">10.32446/0368-1025it.2020-6-9-16</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1799</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>ИЗМЕРЕНИЯ В ИНФОРМАЦИОННЫХ ТЕХНОЛОГИЯХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEASUREMENTS IN INFORMATION TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Технологии уменьшения погрешности традиционных алгоритмов корреляционного анализа зашумлённых сигналов</article-title><trans-title-group xml:lang="en"><trans-title>Development of technologies for reducing the error of traditional algorithms of correlation analysis of noisy signals</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>Алиев</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aliev</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баку</p></bio><bio xml:lang="en"><p>Telman A. Aliev</p><p>Baku</p></bio><email xlink:type="simple">telmancyber@gmail.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>Мусаева</surname><given-names>Н. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Musaeva</surname><given-names>N. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баку</p></bio><bio xml:lang="en"><p>Naila F. Musaeva</p><p>Baku</p></bio><email xlink:type="simple">musanaila@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рзаева</surname><given-names>Н. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Rzayeva</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баку</p></bio><bio xml:lang="en"><p>Narmin E. Rzayeva</p><p>Baku</p></bio><email xlink:type="simple">nikanel1@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мамедова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mammadova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баку</p></bio><bio xml:lang="en"><p>Ana I. Mammadova</p><p>Baku</p></bio><email xlink:type="simple">anahaciyeva@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт систем управления национальной академии наук Азербайджана; Азербайджанский архитектурно-строительный университет</institution><country>Азербайджан</country></aff><aff xml:lang="en"><institution>Institute of Control Systems of Azerbaijan National Academy of Science; Azerbaijan University of Architecture and Construction</institution><country>Azerbaijan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Азербайджанский архитектурно-строительный университет</institution><country>Азербайджан</country></aff><aff xml:lang="en"><institution>Azerbaijan University of Architecture and Construction</institution><country>Azerbaijan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт систем управления национальной академии наук Азербайджана</institution><country>Азербайджан</country></aff><aff xml:lang="en"><institution>Institute of Control Systems of Azerbaijan National Academy of Science</institution><country>Azerbaijan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>10</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>9</fpage><lpage>16</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/1799">https://www.izmt.ru/jour/article/view/1799</self-uri><abstract><p>Проанализированы факторы, влияющие на погрешности оценок корреляционных функций зашумлённых сигналов при применении традиционных алгоритмов их вычисления. Показано, что суммарная помеха зашумлённого сигнала обусловлена влиянием внешних факторов и шумом, который возникает из-за различных дефектов в процессе эксплуатации объектов контроля. Для исключения погрешности результатов корреляционного анализа зашумлённых сигналов созданы алгоритмы и технологии определения оценок дисперсии помехи и взаимно корреляционных функций между полезным сигналом и помехой. Предложены технологии определения приближённых эквивалентных отсчётов помехи зашумлённых сигналов. Показано, что при использовании эквивалентных отсчётов помех можно получить результаты, идентичные результатам реальных отсчётов помех при корреляционном анализе зашумлённых сигналов. При выделении из зашумлённого сигнала эквивалентных отсчётов помехи определены эквивалентные отсчёты полезного сигнала. Эти отсчёты позволяют определить оценки, эквивалентные оценкам корреляционных функций полезного сигнала. Найдены оценки взаимно корреляционных функций между полезным сигналом и помехой. Исследования показали, что несмотря на существующие погрешности эквивалентных отсчётов, при достаточно длительном времени наблюдения можно значительно уменьшить погрешности традиционных технологий корреляционного анализа зашумлённых сигналов при эквивалентных отсчётах. Применение этих технологий можно использовать для коррекции погрешностей результатов анализа экспериментальных данных в информационно-измерительных комплексах и системах, что значительно улучшит их метрологические характеристики.</p></abstract><trans-abstract xml:lang="en"><p>The authors analyze the factors affecting the errors in the estimates of the correlation functions of the noisy signals when using traditional calculation algorithms. It is shown that the sum noise of the noisy signal in many cases consists of the noise caused by external factors and the noise caused by the initiation of various defects during the operation of control objects. For this reason, in order to eliminate the error in the results of the correlation analysis of noisy signals, it is necessary to create algorithms and technologies for determining the estimate of the noise variance and the cross-correlation functions between the useful signal and the noise. For this purpose, appropriate algorithms and technologies are proposed that open up the possibility of reducing the error of traditional technologies for determining the estimates of correlation functions. With the purpose of reducing the error of the results of correlation analysis, a technology is proposed for determining the approximate equivalent samples of the noise of the noisy signals. It is shown that using the equivalent noise samples, it is possible to obtain results that are identical to the results of using real samples of the noise in the correlation analysis of the same signals. Moreover, by extracting the equivalent noise samples from the noisy signal, the equivalent samples of the useful signal are also determined, which allow determining the estimates equivalent to the estimates of the correlation functions of the useful signal. At the same time, having equivalent noise samples and useful signal samples, the estimates of the cross-correlation function between the useful signal and the noise are determined. The study have shown that despite certain errors in the equivalent samples compared to the true samples, with a sufficient observation time using equivalent samples, the error of traditional technologies for the correlation analysis of noisy signals can be significantly reduced. These technologies can also be used to correct errors in the results of the analysis of experimental data in information-measuring and other measuring complexes and systems, which will significantly improve their metrological characteristics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сигнал</kwd><kwd>помеха</kwd><kwd>зашумлённый сигнал</kwd><kwd>корреляционная функция</kwd><kwd>объект</kwd><kwd>диагностика</kwd><kwd>идентификация</kwd><kwd>оценка</kwd><kwd>погрешность</kwd><kwd>отсчёты помехи</kwd><kwd>эквивалентные отсчёты</kwd><kwd>полезный сигнал.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>signal</kwd><kwd>noise</kwd><kwd>noisy signal</kwd><kwd>correlation function</kwd><kwd>object</kwd><kwd>diagnostics</kwd><kwd>identification</kwd><kwd>estimate</kwd><kwd>error</kwd><kwd>noise samples</kwd><kwd>equivalent samples</kwd><kwd>useful signal.</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">Aliev T. 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