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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Earth Sciences</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Earth Sciences</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Russian Journal of Earth Sciences</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">1681-1208</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">89384</article-id>
   <article-id pub-id-type="doi">10.2205/2024es000944</article-id>
   <article-id pub-id-type="edn">zvuujp</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ORIGINAL ARTICLES</subject>
    </subj-group>
    <subj-group>
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Algorithms for Automatic Detection and Location of Infrasound Events in the PSDL System</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Алгоритмы автоматического детектирования и локации инфразвуковых событий в системе PSDL</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3317-2488</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Асминг</surname>
       <given-names>Владимир Эрнестович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Asming</surname>
       <given-names>Vladimir Ernestovich</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4770-6428</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Федоров</surname>
       <given-names>Андрей Викторович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Fedorov</surname>
       <given-names>Andrey Viktorovich</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Кольский филиал Федерального исследовательского центра «Геофизическая служба» РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kola Branch, Federal Research Centre “Geophysical Survey” RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Кольский филиал Федерального исследовательского центра «Геофизическая служба» РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kola Branch, Federal Research Centre “Geophysical Survey” RAS</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-12-30T00:00:00+03:00">
    <day>30</day>
    <month>12</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-12-30T00:00:00+03:00">
    <day>30</day>
    <month>12</month>
    <year>2024</year>
   </pub-date>
   <volume>24</volume>
   <issue>6</issue>
   <fpage>1</fpage>
   <lpage>13</lpage>
   <history>
    <date date-type="received" iso-8601-date="2024-10-04T00:00:00+03:00">
     <day>04</day>
     <month>10</month>
     <year>2024</year>
    </date>
    <date date-type="accepted" iso-8601-date="2024-10-23T00:00:00+03:00">
     <day>23</day>
     <month>10</month>
     <year>2024</year>
    </date>
   </history>
   <self-uri xlink:href="https://rjes.ru/en/nauka/article/89384/view">https://rjes.ru/en/nauka/article/89384/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе представлено описание автоматизированной системы и реализованных в ней алгоритмов для обнаружения, ассоциации и локации низкочастотных акустических событий по данным инфразвуковых групп. Описан алгоритм обнаружения инфразвуковых сигналов методом расчета функции взаимной корреляции между записями отдельных датчиков группы. Реализованный алгоритм оптимизирован для работы с группами, состоящими из большого количества сенсоров, что позволяет минимизировать вычислительную нагрузку на систему мониторинга в режиме, близком к реальному времени. Описана процедура распознавания длительных сигналов с возможно меняющимся во времени положением источника, таких как движущийся транспорт или снежные лавины. Также в работе приводится описание алгоритмов ассоциации инфразвуковых сигналов, зарегистрированных разными группами, а также локации источника сигнала по данным нескольких инфразвуковых групп. Система способна анализировать одновременно данные сейсмического и инфразвукового мониторинга и обнаруживать пары сигналов двух видов, ассоциируемых с общим источником. Алгоритм такой ассоциации также приведен в работе. Описанная система автоматического обнаружения и локации инфразвуковых сигналов может быть применена для мониторинга опасных природных и техногенных процессов и явлений в режиме, близком к реальному времени.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The paper presents a description of an automated system and the algorithms implemented in it for detection, association and location of low-frequency acoustic events based on infrasound array data. An algorithm for detecting infrasound signals by calculating the cross-correlation function between records of individual sensors in a array is described. The implemented algorithm is optimized for working with arrays consisting of a large number of sensors, which allows minimizing the computational load on the monitoring system in near-real time mode. A procedure for recognizing long-term signals with a source position that may change over time, such as moving vehicles or snow avalanches, is described. The paper also describes algorithms for associating infrasound signals recorded by different arrays, as well as locating a signal source based on data from several infrasound arrays. The system is capable of simultaneously analyzing seismic and infrasound monitoring data and detecting pairs of two types of signals associated with a common source. The algorithm for such an association is also given in the paper. The described system of automatic detection and location of infrasound signals can be used for monitoring dangerous natural and man-made processes and phenomena in a mode close to real time.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>инфразвуковой сигнал</kwd>
    <kwd>инфразвуковая группа</kwd>
    <kwd>детектирование</kwd>
    <kwd>локация</kwd>
    <kwd>кросс-корреляция</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>Infrasound signal</kwd>
    <kwd>infrasound group</kwd>
    <kwd>detection</kwd>
    <kwd>location</kwd>
    <kwd>cross-correlation</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена за счет гранта Российского научного фонда № 24- 27-20007, https://rscf.ru/project/24-27-20007/.</funding-statement>
    <funding-statement xml:lang="en">The work was supported by the grant of the Russian Science Foundation No. 24-27-20007, https://rscf.ru/project/24-27-20007/.</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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