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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">geolmsu</journal-id><journal-title-group><journal-title xml:lang="ru">ВЕСТНИК МОСКОВСКОГО УНИВЕРСИТЕТА. СЕРИЯ 4. ГЕОЛОГИЯ</journal-title><trans-title-group xml:lang="en"><trans-title>Moscow University Bulletin. Series 4. Geology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0579-9406</issn><publisher><publisher-name>Издательский Дом МГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33623/0579-9406-2016-4-40-46</article-id><article-id custom-type="elpub" pub-id-type="custom">geolmsu-31</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Развитие методов обработки данных магнитотеллурического зондирования</article-title><trans-title-group xml:lang="en"><trans-title>Improving magnetotelluric data processing methods</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>Епишкин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Epishkin</surname><given-names>D. V.</given-names></name></name-alternatives><email xlink:type="simple">dmitri_epishkin@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Московский государственный университет имени М.В. Ломоносова, геологический факультет</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2016</year></pub-date><volume>0</volume><issue>4</issue><fpage>40</fpage><lpage>46</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Епишкин Д.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Епишкин Д.В.</copyright-holder><copyright-holder xml:lang="en">Epishkin D.V.</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://vestnik.geol.msu.ru/jour/article/view/31">https://vestnik.geol.msu.ru/jour/article/view/31</self-uri><abstract><p>Разработан алгоритм (система) обработки магнитотеллурических (МТ) данных, обладающий высокой устойчивостью по отношению к интенсивным электромагнитным шумам, присутствующим в записях магнитотеллурического поля. Особенность алгоритма - применение специальных схем мультипликативного взвешивания данных при оценивании разных передаточных функций. В алгоритме использованы разные методы борьбы со смещением спектральных оценок, включая робастную М -оценку, метод «складного ножа», использование удаленной базы, ввод поправок за смещение спектральных оценок. Предложенный алгоритм демонстрирует высокую эффективность при обработке МТ-данных с низким соотношением сигнал/шум.</p></abstract><trans-abstract xml:lang="en"><p>A magnetotelluric data processing code has been developed, which demonstrates high robustness to intense electromagnetic noise occurring in measured MT data. Key features of the code are specific approach for estimating different transfer functions and capability to utilize all four channels acquired at remote reference station. The code utilizes various techniques to reduce estimate errors, including robust Huber estimator, jackknife approach, improved remote reference technique and compensating for overestimation of power spectra. The proposed code has shown high efficiency in processing of low signal-to-noise data.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>обработка магнитотеллурических данных</kwd><kwd>оценка передаточных функций</kwd><kwd>робастное оценивание</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetotelluric data processing</kwd><kwd>response function estimation</kwd><kwd>robust estimator</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">Жданов М.С. Электроразведка М.: Недра, 1986. 316 с.</mixed-citation><mixed-citation xml:lang="en">Жданов М.С. Электроразведка М.: Недра, 1986. 316 с.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Семенов В.Ю. Обработка данных магнитотеллурического зондирования. М.: Недра, 1985.</mixed-citation><mixed-citation xml:lang="en">Семенов В.Ю. Обработка данных магнитотеллурического зондирования. М.: Недра, 1985.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Chave A.D., Thomson D.J., Ander M.E. On the robust estimation of power spectra, coherences, and transfer functions // J. Geophys. Res. 1987. N 92. P. 633-648.</mixed-citation><mixed-citation xml:lang="en">Chave A.D., Thomson D.J., Ander M.E. On the robust estimation of power spectra, coherences, and transfer functions // J. Geophys. Res. 1987. N 92. P. 633-648.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Egbert G.D., Booker J.R. Robust estimation of geomagnetic transfer functions // Geophys. J. R. Astr. Soc. 1986. N 87. P. 173-194.</mixed-citation><mixed-citation xml:lang="en">Egbert G.D., Booker J.R. Robust estimation of geomagnetic transfer functions // Geophys. J. R. Astr. Soc. 1986. N 87. P. 173-194.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Egbert G.D., Livelybrooks D. Single station magneto-telluric impedance estimation: coherency weighting and the regression M-estimate // Geophisics. 1996. N 61. P. 964-970.</mixed-citation><mixed-citation xml:lang="en">Egbert G.D., Livelybrooks D. Single station magneto-telluric impedance estimation: coherency weighting and the regression M-estimate // Geophisics. 1996. N 61. P. 964-970.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Gamble T.D., Goubau W.M., Clarke J. Magnetotellurics with a remote magnetic reference // Geophysics. 1979. N 44. P. 53-68.</mixed-citation><mixed-citation xml:lang="en">Gamble T.D., Goubau W.M., Clarke J. Magnetotellurics with a remote magnetic reference // Geophysics. 1979. N 44. P. 53-68.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Goubau W.M., Gamble T.D., Clarke J. Magnetotelluric data analysis: removal of bias // Geophisics. 1978. N 43. P. 1157-1166.</mixed-citation><mixed-citation xml:lang="en">Goubau W.M., Gamble T.D., Clarke J. Magnetotelluric data analysis: removal of bias // Geophisics. 1978. N 43. P. 1157-1166.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Jones A.G., Chave A.D., Egbert G. et al. A comparison of techniques for magnetotelluric response function estimation // J. Geophys. Res. 1989. N 94. P. 14 201-14 213.</mixed-citation><mixed-citation xml:lang="en">Jones A.G., Chave A.D., Egbert G. et al. A comparison of techniques for magnetotelluric response function estimation // J. Geophys. Res. 1989. N 94. P. 14 201-14 213.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Huber P.J. Robust Statistics. New York: John Wiley &amp; Sons, 1981.</mixed-citation><mixed-citation xml:lang="en">Huber P.J. Robust Statistics. New York: John Wiley &amp; Sons, 1981.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Larsen J.C. Transfer functions: Smooth robust estimates by least squares and remote reference methods // Geophys. J. 1989. N99. P. 655-663</mixed-citation><mixed-citation xml:lang="en">Larsen J.C. Transfer functions: Smooth robust estimates by least squares and remote reference methods // Geophys. J. 1989. N99. P. 655-663</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Muller A. A new method to compensate for bias in magnetotellurics // Geophys. J. 2000. N 142. P. 257-269.</mixed-citation><mixed-citation xml:lang="en">Muller A. A new method to compensate for bias in magnetotellurics // Geophys. J. 2000. N 142. P. 257-269.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Sims, W.E., Bostick F.X., Smith H.W. The estimation of magnetotelluric impedance tensor elements from measured data // Geophysics. 1971. N 36. P. 938-942.</mixed-citation><mixed-citation xml:lang="en">Sims, W.E., Bostick F.X., Smith H.W. The estimation of magnetotelluric impedance tensor elements from measured data // Geophysics. 1971. N 36. P. 938-942.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zorin N., Epishkin D. Yakovlev A. A telluric method for natural field induced polarization studies // J. Appl. Geophis. 2015. N 23.</mixed-citation><mixed-citation xml:lang="en">Zorin N., Epishkin D. Yakovlev A. A telluric method for natural field induced polarization studies // J. Appl. Geophis. 2015. N 23.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
