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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-1088</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>МЕДИЦИНСКИЕ И БИОЛОГИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICAL AND BIOLOGICAL MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Погрешности определения показателей нелинейной динамики сердечного ритма</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>Федотов</surname><given-names>А. А.</given-names></name></name-alternatives><email xlink:type="simple">fedoaleks@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Самарский государственный аэрокосмический университет имени академика С. П. Королева, Самара</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>5</issue><fpage>39</fpage><lpage>41</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/1088">https://www.izmt.ru/jour/article/view/1088</self-uri><abstract><p>Рассмотрены различные методы математического анализа вариабельности сердечного ритма. Даны анализ и сравнение помехоустойчивости показателей вариабельности сердечного ритма, определяемых на основе методов нелинейной динамики, статистических и геометрических методов.</p></abstract><trans-abstract xml:lang="en"><p>The different methods of heart rate variability (HRV) mathematical analysis were considered. The analysis and comparison of noise stability to influence of various methodical factors of HRV indices determined on the base of nonlinear dynamics and statistical and geometrical methods are given.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вариабельность сердечного ритма</kwd><kwd>нелинейная динамика</kwd><kwd>heart rate variability (HRV)</kwd><kwd>nonlinear dynamics</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">Баевский Р. М., Кириллов О. И., Клецкин С. З. Математический анализ изменений сердечного ритма при стрессе. 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