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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">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-41</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>РАДИОТЕХНИЧЕСКИЕ СРЕДСТВА ПЕРЕДАЧИ, ПРИЕМА И ОБРАБОТКИ СИГНАЛОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADIO ELECTRONIC FACILITIES FOR SIGNAL TRANSMISSION, RECEPTION AND PROCESSING</subject></subj-group></article-categories><title-group><article-title>Оценка помехоустойчивости многочастотных систем связи при воздействии импульсного шума</article-title><trans-title-group xml:lang="en"><trans-title>Estimation of noise stability of multi-frequency com.munication systems when pulse noise impacting</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>Сергиенко</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergienko</surname><given-names>A. B.</given-names></name></name-alternatives><email xlink:type="simple">sandy@ieee.org</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>Натальин</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Natal'in</surname><given-names>A. B.</given-names></name></name-alternatives><email xlink:type="simple">abnatalyin@yandex.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>Сидоров</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sidorov</surname><given-names>M. S.</given-names></name></name-alternatives><email xlink:type="simple">smaksim@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В. И. Ульянова (Ленина)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University "LETI"</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2015</year></pub-date><volume>0</volume><issue>4</issue><fpage>18</fpage><lpage>25</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сергиенко А.Б., Натальин А.Б., Сидоров М.С., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Сергиенко А.Б., Натальин А.Б., Сидоров М.С.</copyright-holder><copyright-holder xml:lang="en">Sergienko A.B., Natal'in A.B., Sidorov M.S.</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://re.eltech.ru/jour/article/view/41">https://re.eltech.ru/jour/article/view/41</self-uri><abstract><p>Рассмотрено влияние импульсного шума на некодированные и кодированные многочастотные (OFDM) системы с учетом того, что длительность символа может быть сопоставима со средней длительностью импульса шума. Временна́я динамика возникновения импульсов шума описана марковской моделью. Теоретические расчеты и результаты моделирования позволяют заключить, что эффективное усреднение уровня шума происходит, если средняя длительность его импульсов не превосходит 1 % от длительности OFDM-символов. Во время действия пачки импульсов энергетические потери, обусловленные импульсным характером шума, могут достигать 2…2,5 дБ. </p></abstract><trans-abstract xml:lang="en"><p>Impact of impulsive noise on performance of uncoded and coded OFDM system is considered with account for the fact that the length of modulation symbol can be com.parable with average length of noise pulses. Temporal dynamics of noise is described by a Markov model. Theoretical calculations and simulation results lead to the following conclusions: efficient averaging of noise level takes place if average duration of noise pulses does not exceed 1% of OFDM symbol length; during the noise burst power losses due to impulsive nature of noise can reach 2…2,5 dB. Multi-frequency com.munication system, impulse noise, data transmission over the power line. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>Многочастотные системы связи</kwd><kwd>импульсный шум</kwd><kwd>передача данных по линиям электропитания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Multi-frequency com.munication systems</kwd><kwd>impulsive noise</kwd><kwd>com.munications over power line</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">HomePlug AV White paper. Home plug powerline alliance, 2005. 11 p. 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