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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solnechno-Zemnaya Fizika</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solnechno-Zemnaya Fizika</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2712-9640</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">27789</article-id>
   <article-id pub-id-type="doi">10.12737/szf-53201901</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Результаты  исследований</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Results of current research</subject>
    </subj-group>
    <subj-group>
     <subject>Результаты  исследований</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Results of work of new spectropolarimeter for solar radio emission observations in the range 50–500 MHz</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Результаты работы нового спектрополяриметра для наблюдения солнечного радиоизлучения в диапазоне 50–500 МГц</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/0000-0001-9937-574X</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Муратова</surname>
       <given-names>Наталия Олеговна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Muratova</surname>
       <given-names>Nataliia Olegovna</given-names>
      </name>
     </name-alternatives>
     <email>muratova@iszf.irk.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Муратов</surname>
       <given-names>Анатолий Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Muratov</surname>
       <given-names>Anatoliy Aleksandrovich</given-names>
      </name>
     </name-alternatives>
     <email>mutolya@mail.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Кашапова</surname>
       <given-names>Лариса Камалетдиновна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kashapova</surname>
       <given-names>Larisa Kamaletdinovna</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт солнечно-земной физики СО РАН</institution>
     <city>Иркутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Solar Terrestrial Physics SB RAS</institution>
     <city>Irkutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт солнечно-земной физики СО РАН</institution>
     <city>Иркутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Solar Terrestrial Physics SB RAS</institution>
     <city>Irkutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт солнечно-земной физики СО РАН</institution>
     <city>Иркутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Solar Terrestrial Physics SB RAS</institution>
     <city>Irkutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Иркутский государственный университет</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Irkutsk State University</institution>
    </aff>
   </aff-alternatives>
   <volume>5</volume>
   <issue>3</issue>
   <fpage>3</fpage>
   <lpage>10</lpage>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/27789/view">https://naukaru.ru/en/nauka/article/27789/view</self-uri>
   <abstract xml:lang="ru">
    <p>Наземные наблюдения в метровом радиодиапазоне представляют большой интерес для понимания процессов, происходящих в короне Солнца. Мы представляем основные принципы работы, схему и результаты первых наблюдений Солнечного спектрополяриметра метрового диапазона (ССМД), запущенного для наблюдения Солнца в диапазоне 50–500 МГц в апреле 2016 г. Основной задачей при конструировании прибора было создание современного цифрового спектрополяриметра, способного измерять полный вектор Стокса для спорадических явлений, наблюдаемых в диапазоне 50–500 МГц. &#13;
Для приема радиоизлучения используется логопериодическая скрещенная антенна, принимающая горизонтальную и вертикальную поляризационные компоненты одновременно. Основой ССМД является цифровая часть, алгоритм работы которой построен на базе архитектуры FX-коррелятора. В основе получения динамических амплитудных спектров (зависимость амплитуды от частоты и времени) лежит алгоритм быстрого преобразования Фурье (БПФ), реализованный по принципу поточной схемы и работающий в режиме реального времени.&#13;
ССМД имеет 4608 частотных каналов, при ширине канала 97.66 кГц и шаге 97.66 кГц временное разрешение составляет 1 с. Спектрополяриметр покрывает широкий диапазон 50–500 МГц и позволяет получать полный вектор Стокса. На сегодняшний день с помощью ССМД проводятся регулярные наблюдения двух параметров вектора Стокса (I и V). Начиная с 2016 г. получены наблюдения ряда интересных явлений, произошедших во время солнечных вспышек, составляется каталог наблюдений.&#13;
Мы планируем улучшение временных и частотных характеристик, запись полного вектора Стокса, а также калибровку инструмента. Идет работа над обеспечением доступа к данным в сети Интернет.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Ground-based observations within meter radio range are of importance for understanding processes occurring in the solar corona.&#13;
We present concepts, block diagram, and results of first observations of the Solar Spectropolarimeter of Meter Range (SSMD), launched for solar observations in the range 50–500 MHz in April 2016. The main purpose of this work was to develop an up-to-date digital radio spectropolarimeter able to record the full Stokes vector for sporadic solar phenomena taking place in the 50–500 MHz range.&#13;
We use a crossed log periodic antenna to detect solar radio emission. This antenna can simultaneously obtain horizontal and vertical polarization components. The main part of SSMD is a digital receiver based on an FX correlator architecture. We use the Fast Fourier Transform (FFT) algorithm based on the real-time pipeline circuit to construct amplitude dynamic spectra (intensity vs frequency and time).&#13;
SSMD has 4608 frequency channels with 97.66 kHz channel bandwidth and 97.66 kHz spacing. Time resolution is 1 s. The spectropolarimeter has a 50–500 MHz range. It can record the full Stokes vector. At present, SSMD observes two of four parameters in regular mode (I and V). We have observational data since 2016. The catalog development is in progress.&#13;
We plan to improve time and frequency characteristics, record all Stokes parameters, and conduct a calibration. We are working on providing access to the data archive via the Internet.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>радиоспектрометр</kwd>
    <kwd>спектрометр с быстрым преобразованием Фурье</kwd>
    <kwd>FX-коррелятор</kwd>
    <kwd>инструменты</kwd>
    <kwd>Солнце</kwd>
    <kwd>поляризация</kwd>
    <kwd>параметры Стокса</kwd>
    <kwd>метровый диапазон.</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>radio spectrometer</kwd>
    <kwd>Fast Fourier Transform spectrometer</kwd>
    <kwd>FX correlator</kwd>
    <kwd>instruments</kwd>
    <kwd>Sun</kwd>
    <kwd>polarization</kwd>
    <kwd>Stokes parameters</kwd>
    <kwd>meter wavelengths</kwd>
   </kwd-group>
  </article-meta>
 </front>
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