Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 22244 10.12737/stp-42201805 Results of current research Results of current research Results of current research Backscatter signal model for Irkutsk Incoherent Scatter Radar Backscatter signal model for Irkutsk Incoherent Scatter Radar Ташлыков Виктор Петрович Tashlykov Viktor Petrovich vtashlykov@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 https://orcid.org/0000-0003-0660-8474 Медведев Андрей Всеволодович Medvedev Andrey Vsevolodovich medvedev@iszf.irk.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 https://orcid.org/0000-0001-8758-7964 Васильев Роман Валерьевич Vasilyev Roman Valeryevich roman_vasilyev@iszf.irk.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar-Terrestrial Physics SB RAS Irkutsk Russian Federation Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar-Terrestrial Physics SB RAS Irkutsk Russian Federation Институт солнечно-земной физики СО РАН Иркутск Россия Institute of Solar-Terrestrial Physics SB RAS Irkutsk Russian Federation 4 2 24 32 https://naukaru.ru/en/nauka/article/22244/view

The paper presents a backscatter signal model for Irkutsk Incoherent Scatter Radar (IISR) and proposes a technique for solving the inverse problem of determining plasma temperatures from IISR data. This solution is validated by setting up the direct scattering problem and simulating it using the Monte-Carlo method. In addition, we can introduce known systematic error sources into the backscatter signal model. This enables us to determine which approaches can be used to recover temperatures correctly. The major task of this study is to identify and methodically correct the errors that can distort the obtained temperatures. We also report the results of testing of the developed technique for determining temperatures from IISR experimental data. The presented model and IISR experimental data can be used to validate techniques for determining other ionospheric plasma parameters.

The paper presents a backscatter signal model for Irkutsk Incoherent Scatter Radar (IISR) and proposes a technique for solving the inverse problem of determining plasma temperatures from IISR data. This solution is validated by setting up the direct scattering problem and simulating it using the Monte-Carlo method. In addition, we can introduce known systematic error sources into the backscatter signal model. This enables us to determine which approaches can be used to recover temperatures correctly. The major task of this study is to identify and methodically correct the errors that can distort the obtained temperatures. We also report the results of testing of the developed technique for determining temperatures from IISR experimental data. The presented model and IISR experimental data can be used to validate techniques for determining other ionospheric plasma parameters.

 ion and electron temperatures incoherent scatter technique incorrect inverse problems ion and electron temperatures incoherent scatter technique incorrect inverse problems

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