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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-1365</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>АННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABSTRACTS ENGLISH-LANGUAGE ARTICLES</subject></subj-group></article-categories><title-group><article-title>Моделирование шума и методы его фильтрации в диодно-лазерной абсорбционной спектроскопии</article-title><trans-title-group xml:lang="en"><trans-title>Research on a System Noise Simulation and Filtering Method in Tunable Diode Laser Absorption Spectroscopy Technology</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>Yan</surname><given-names>W.</given-names></name><name name-style="western" xml:lang="en"><surname>Yan</surname><given-names>W.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тяньцзинь</p></bio><bio xml:lang="en"><p>Tianjin</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Fang</surname><given-names>W.</given-names></name><name name-style="western" xml:lang="en"><surname>Fang</surname><given-names>W.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тяньцзинь</p></bio><bio xml:lang="en"><p>Tianjin</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Rui</surname><given-names>Z.</given-names></name><name name-style="western" xml:lang="en"><surname>Rui</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тяньцзинь</p></bio><bio xml:lang="en"><p>Tianjin</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Bo</surname><given-names>Y.</given-names></name><name name-style="western" xml:lang="en"><surname>Bo</surname><given-names>Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чжанцзякоу</p></bio><bio xml:lang="en"><p>Zhangjiakou</p></bio><email xlink:type="simple">zhangrui@tust.edu.cn</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Yang</surname><given-names>S.-Y.</given-names></name><name name-style="western" xml:lang="en"><surname>Yang</surname><given-names>S.-Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тяньцзинь</p></bio><bio xml:lang="en"><p>Tianjin</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Li</surname><given-names>X.-B.</given-names></name><name name-style="western" xml:lang="en"><surname>Li</surname><given-names>X.-B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тяньцзинь</p></bio><bio xml:lang="en"><p>Tianjin</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Школа компьютерной и информационной инженерии Тяньцзиньского университета Чэнцзянь</institution></aff><aff xml:lang="en"><institution>School of Computer and Information Engineering at Tianjin Chengjian University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Колледж электронной информации и автоматизации Тяньцзиньского университета&#13;
науки и технологий</institution></aff><aff xml:lang="en"><institution>College of Electronic Information and Automation at Tianjin University of Science &amp; Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Колледж электротехники при Хэбэйском архитектурном университете</institution></aff><aff xml:lang="en"><institution>College of Electrical Engineering at Hebei University of Architecture</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>08</month><year>2023</year></pub-date><volume>90</volume><issue>4</issue><fpage>654</fpage><lpage>654</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Yan W., Fang W., Rui Z., Bo Y., Yang S., Li X., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Yan W., Fang W., Rui Z., Bo Y., Yang S., Li X.</copyright-holder><copyright-holder xml:lang="en">Yan W., Fang W., Rui Z., Bo Y., Yang S., Li X.</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://zhps.ejournal.by/jour/article/view/1365">https://zhps.ejournal.by/jour/article/view/1365</self-uri><abstract><p>Для решения проблемы многократных шумовых помех в технологии перестраиваемой диоднолазерной спектроскопии поглощения (TDLAS) при обнаружении концентрации газа использованы принципы Калмана, скользящее среднее, вейвлет-преобразование и разложение по сингулярным числам. Проанализированы четыре алгоритма фильтрации и система шумоподавления. С помощью программы MATLAB смоделированы зависимости теплового шума, дробового шума, шума относительной интенсивности лазеров и характеристического значения гармонических сигналов. Для обработки шума использованы четыре алгоритма фильтрации, среди которых выбран наилучший. Для проверки работоспособности предложенных алгоритмов шумоподавления разработана экспериментальная система TDLAS с газообразным этиленом в качестве объекта детектирования. Показано, что из четырех алгоритмов фильтрации метод сингулярного разложения дает наилучший эффект при удалении теплового, дробового и лазерного шумов. После выполнения фильтрации точность непрерывного обнаружения системы повышается, может быть достигнуто снижение или даже устранение системного шума. После обработки отношение сигнал/шум обнаруженного сигнала системы улучшается на 57 дБ, коэффициент шумоподавления системы достигает 66.7%.</p></abstract><trans-abstract xml:lang="en"><p>To solve the problem of multiple noise interference when tunable diode laser absorption spectroscopy (TDLAS) technology is used for gas concentration detection, the principles of Kalman, moving average, wavelet transform, and singular value decomposition four filtering algorithm principles and system noise sources are analyzed. MATLAB simulation software is used to simulate the relationship curve of thermal noise, shot noise, relative intensity noise of lasers, and the characteristic value of harmonic signals. Four filtering algorithms are used to process the noise, and the best filtering algorithm is selected. Moreover, a TDLAS experimental system with ethylene gas as the detection object is designed in this paper. The experimental results show that the singular value decomposition method among the four filtering algorithms has the best effect in removing thermal noise, shot noise and laser noise. After filtering is performed, the accuracy of the continuous detection of the system is improved, and the purpose of reducing or even eliminating system noise can be achieved. After processing occurs, the signal-to-noise ratio of the detected signal of the system is improved by 57 dB, and the noise removal rate of the system reaches 66.7%.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спектр поглощения перестраиваемого диодного лазера</kwd><kwd>алгоритм фильтрации</kwd><kwd>имитация шума</kwd><kwd>этилен</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tunable diode laser absorption spectrum</kwd><kwd>filtering algorithm</kwd><kwd>noise simulation</kwd><kwd>ethylene</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">This research was financially supported by the Tianjin Municipal Education Commission (2017KJ057).</funding-statement><funding-statement xml:lang="en">This research was financially supported by the Tianjin Municipal Education Commission (2017KJ057).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">G. 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