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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">tuzsut</journal-id><journal-title-group><journal-title xml:lang="ru">Труды учебных заведений связи</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Telecommunication Universities</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-324X</issn><issn pub-type="epub">2712-8830</issn><publisher><publisher-name>СПбГУТ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31854/1813-324X-2023-9-1-52-58</article-id><article-id custom-type="elpub" pub-id-type="custom">tuzsut-439</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>ЭЛЕКТРОНИКА, ФОТОНИКА, ПРИБОРОСТРОЕНИЕ И СВЯЗЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, PHOTONICS, INSTRUMENTATION AND COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Исследование чувствительности оптических волокон в контексте локализации злоумышленника в защищенном помещении</article-title><trans-title-group xml:lang="en"><trans-title>The Sensitivity Investigation of Fiber Optic Paths in the Framework of an Intruder Localization at a Protected Facility</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8167-8291</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Картак</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kartak</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор, заведующий кафедрой вычислительной техники и защиты информации Уфимского государственного авиационного технического университета</p></bio><bio xml:lang="en"><p>Ufa, Russian Federation</p></bio><email xlink:type="simple">kvmail@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4177-0370</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Губарева</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Gubareva</surname><given-names>O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, начальник управления научной и инновационной деятельности Поволжского государственного университета телекоммуникаций и информатики</p></bio><bio xml:lang="en"><p>Samara, Russian Federation</p></bio><email xlink:type="simple">o.gubareva@psuti.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3919-4151</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дашков</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dashkov</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, и. о. заведующего кафедрой линий связи и измерений в технике связи Поволжского государственного университета телекоммуникаций и информатики</p></bio><bio xml:lang="en"><p>Samara, Russian Federation</p></bio><email xlink:type="simple">mvd.srttc@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5148-6432</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гуреев</surname><given-names>В. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Gureev</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры линий связи и измерений в технике связи Поволжского государственного университета телекоммуникаций и информатики</p></bio><bio xml:lang="en"><p>Samara, Russian Federation</p></bio><email xlink:type="simple">gureevvo.rabota@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5677-7802</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Евтушенко</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Evtushenko</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер кафедры линий связи и измерений в технике связи Поволжского государственного университета телекоммуникаций и информатики</p></bio><bio xml:lang="en"><p>Samara, Russian Federation</p></bio><email xlink:type="simple">alex2194ru@yandex.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Уфимский государственный авиационный технический университет<country>Россия</country></aff><aff xml:lang="en">Ufa State Aviation Technical University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Поволжский государственный университет телекоммуникаций и информатики<country>Россия</country></aff><aff xml:lang="en">Povolzhskiy State University of Telecommunications and Informatics<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>09</day><month>03</month><year>2023</year></pub-date><volume>9</volume><issue>1</issue><fpage>52</fpage><lpage>58</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Картак В.М., Губарева О.Ю., Дашков М.В., Гуреев В.О., Евтушенко А.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Картак В.М., Губарева О.Ю., Дашков М.В., Гуреев В.О., Евтушенко А.С.</copyright-holder><copyright-holder xml:lang="en">Kartak V., Gubareva O., Dashkov M., Gureev V., Evtushenko A.</copyright-holder><license 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://tuzs.sut.ru/jour/article/view/439">https://tuzs.sut.ru/jour/article/view/439</self-uri><abstract><p>В статье рассмотрена возможность использования уже существующих на объектах городской застройки линий связи на основе таких технологий передачи информации, как «волокно в офис» и «волокно до рабочего места» применительно к задачам физической защиты объектов. Изучены аспекты использования распределенных акустических датчиков на основе фазочувствительного оптического рефлектометра для локализации источников акустического воздействия в режиме реального времени, то есть для определения местоположения нарушителя на охраняемом объекте. Оценивалась чувствительность оптических трактов к акустическим воздействиям, соответствующим речевым сигналам предполагаемого нарушителя. Рассмотрен оптический тракт на основе оптического волокна в оптическом модуле с гидрофобным наполнением. Проведен анализ спектральной чувствительности исследуемых образцов оптических волокон. Представлена оценка влияния условий прохождения трассы прокладки оптического кабеля и взаимодействия акустического датчика с окружающими предметами. Приведен анализ результатов, полученных в ходе тестовых мероприятий на испытательном полигоне.</p></abstract><trans-abstract xml:lang="en"><p>The paper considers the possibility of using communication lines already existing at urban development sites based on such information transfer technologies as «fiber-to-the-office» and «fiber-to-the-desk» in relation to the tasks of physical protection of objects. The aspects of using distributed acoustic sensors based on a phase-sensitive optical time-domain reflectometer for localizing sources of acoustic impact in real-time, that is, for determining the location of an intruder on a protected object, are considered. The sensitivity of optical paths to acoustic influences corresponding to the speech signals of the alleged intruder was assessed. An optical path based on optical fiber in an optical module with a hydrophobic filling is considered. An analysis of the spectral sensitivity of the optical fiber samples under study has been carried out. An assessment of the influence of the conditions for the passage of the route of laying the optical cable and the interaction of the acoustic sensor with the surrounding objects was carried out. The analysis of the results obtained during the test events at the experimental site was carried out.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оптическое волокно</kwd><kwd>распределенный акустический датчик</kwd><kwd>оптический рефлектометр</kwd><kwd>злоумышленник</kwd><kwd>акусто-оптика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optical fiber</kwd><kwd>distributed acoustic sensor</kwd><kwd>optical reflectometer</kwd><kwd>intruder</kwd><kwd>acousto-optics</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках гранта аспирантам, соискателям и молодым ученым на проведение исследований, направленных на обеспечение информационной безопасности для задач цифровой экономики, договор № 40469-36/2021-Д</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The paper was made as part of a grant to graduate students, applicants and young scientists for research aimed at ensuring information security for the tasks of the digital economy Contract No. 40469-36/2021-D</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">Segura-Garcia J., Felici-Castell S., Perez-Solano J.J., Cobos M., Navarro J.M. 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