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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">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2026-29-1-76-91</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-1116</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>РАДИОЛОКАЦИЯ И РАДИОНАВИГАЦИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADAR AND NAVIGATION</subject></subj-group></article-categories><title-group><article-title>Алгоритм получения декартовых несмещенных оценок координат цели по измерениям дальности и направления при произвольной угловой ориентации и смещении радара</article-title><trans-title-group xml:lang="en"><trans-title>Algorithm for Obtaining Cartesian Debiased Estimates of Target Coordinates from Range and Direction Measurements for an Arbitrary Radar Angular Orientation and Offset</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4029-7745</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буров</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Burov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Буров Владимир Николаевич – кандидат технических наук (2015), старший научный сотрудник Центра цифровых технологий. Автор 20 научных работ. Сфера научных интересов – траекторное сопровождение целей; калмановская фильтрация; теория оценивания.</p><p>ул. Минина, д. 24, Нижний Новгород, 603155</p></bio><bio xml:lang="en"><p>Vladimir N. Burov, Cand. Sci. (Eng.) (2015), Senior Researcher of the Digital Technology Center. The author of 20 scientific publications. Area of expertise: target tracking; Kalman filtering, estimation theory.</p></bio><email xlink:type="simple">burov@nntu.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/0000-0001-6952-4134</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мякиньков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Myakinkov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мякиньков Александр Валерьевич – доктор технических наук (2013), доцент (2010), профессор (2025), директор Учебно-научного института радиоэлектроники и информационных технологий. Автор 125 научных работ. Сфера научных интересов – радиолокация; цифровая обработка сигналов; антенные решетки.</p><p>ул. Минина, д. 24, Нижний Новгород, 603155</p></bio><bio xml:lang="en"><p>Alexandr V. Myakinkov, Dr Sci. (Eng.) (2013), Associate Professor (2010), Professor (2025), Director of the Institute of Radio Electronics and Information Technolog. The author of 125 scientific publications. Area of expertise: radiolocation; digital signal processing; array antennas.</p></bio><email xlink:type="simple">redvillage@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/0000-0001-8877-6724</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фадеев</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Fadeev</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фадеев Роман Сергеевич – кандидат технических наук (2017), доцент (2024), доцент кафедры информационных радиосистем Учебно-научного института радиоэлектроники и информационных технологий. Автор 20 научных работ. Сфера научных интересов – передача информации; MIMO-антенны; цифровая обработка сигналов.</p><p>ул. Минина, д. 24, Нижний Новгород, 603155</p></bio><bio xml:lang="en"><p>Roman S. Fadeev, Cand. Sci. (Eng.) (2017), Associate Professor (2024), Associate Professor of the Department of Information Radio Systems. The author of 20 scientific publications. Area of expertise: data transmission; MIMO antennas; signal processing.</p></bio><email xlink:type="simple">fr_201190@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/0000-0003-2862-036X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецов</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кузнецов Станислав Евгеньевич – магистр техники и технологии по направлению "Радиотехника", старший преподаватель кафедры информационных радиосистем Учебно-научного института радиоэлектроники и информационных технологий. Автор 20 научных работ. Сфера научных интересов – цифровая обработка сигналов; синхронизация данных в системах передачи данных; распределенные радиолокационные системы.</p><p>ул. Минина, д. 24, Нижний Новгород, 603155</p></bio><bio xml:lang="en"><p>Stanislav E. Kuznetsov, Master in Radio Engineering, Senior Lecturer of the Department of Information Radio Systems The author of 20 scientific publications. Area of expertise: digital signal processing; synchronization of data transmission systems; distributed radar systems.</p></bio><email xlink:type="simple">s_kuznetsov@nntu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Нижегородский государственный технический университет им. Р. Е. Алексеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Nizhny Novgorod State Technical University n. a. R. Е. Alekseev</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2026</year></pub-date><volume>29</volume><issue>1</issue><fpage>76</fpage><lpage>91</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Буров В.Н., Мякиньков А.В., Фадеев Р.С., Кузнецов С.Е., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Буров В.Н., Мякиньков А.В., Фадеев Р.С., Кузнецов С.Е.</copyright-holder><copyright-holder xml:lang="en">Burov V.N., Myakinkov A.V., Fadeev R.S., Kuznetsov S.E.</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://re.eltech.ru/jour/article/view/1116">https://re.eltech.ru/jour/article/view/1116</self-uri><abstract><p>Введение. Использование компенсации систематических ошибок при нелинейном преобразовании координат из сферической системы в декартову позволяет повысить точность получаемых оценок координат цели. В статье рассматривается обобщение известного алгоритма преобразования координат с компенсацией систематических ошибок в случае произвольного размещения и ориентации радиолокационной позиции в глобальной декартовой системе координат. Предложенный алгоритм позволяет получить вектор координат и соответствующую ему корреляционную матрицу ошибок в глобальной декартовой системе координат при наличии измерений дальности и угловых положений в локальной сферической системе координат, связанной с радиолокационной позицией. Рассмотрено применение предложенного алгоритма в задаче траекторной фильтрации. Компенсация систематических ошибок и расчет корреляционной матрицы вектора координат позволяет повысить точность траекторного сопровождения. Цель работы. Повышение точности траекторного сопровождения при использовании калмановского фильтра с конвертированными измерениями за счет применения полученных математических выражений для оценок координат цели и соответствующей им корреляционной матрицы ошибок в глобальной декартовой системе координат. Материалы и методы. При решении поставленной задачи использовались методы математической статистики, статистической теории оценивания, имитационного компьютерного моделирования. Результаты. Получены математические выражения для расчета координат и соответствующей им корреляционной матрицы в глобальной декартовой системе координат. Получены сравнительные графики ошибок траекторного сопровождения при использовании различных способов построения калмановского фильтра для конвертированных измерений. Заключение. Использование явных выражений для преобразования координат с компенсацией систематических ошибок демонстрирует возможность существенного повышения точности с ростом ошибок первичных измерений как при использовании прямого простого пересчета координат, так и с использованием калмановского фильтра для конвертированных измерений в глобальной декартовой системе координат.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. In order to increase the accuracy of estimating the coordinates of a target, it is necessary to compensate for systematic errors in the nonlinear transformation of coordinates from a spherical system to a Cartesian one. In this paper, we consider the generalization of the well-known coordinate transformation algorithm with compensation for systematic errors when the radar is positioned and oriented arbitrarily in the global Cartesian coordinate system. By applying the proposed algorithm, the coordinate vector and error correlation matrix can be obtained in the global Cartesian coordinate system in the presence of range measurements and angular positions in the local spherical coordinate system associated with the radar position. The proposed algorithm is discussed with respect to trajectory filtering. As a result of the compensation of systematic errors and the calculation of the correlation matrix of the coordinate vector, the accuracy of trajectory tracking is enhanced. Aim. To improve the accuracy of trajectory tracking when using the Kalman filter with converted measurements by means of the mathematical expressions obtained to estimate the coordinates of a target and the error correlation matrix in the global Cartesian coordinate system. Materials and methods. The problem was solved using the methods of mathematical statistics, statistical estimation theory, and computer simulation. Results. Mathematical expressions for calculating coordinates and the corresponding correlation matrix within the global Cartesian coordinate system were derived. Furthermore, comparative graphs illustrating trajectory tracking errors, associated with the use of various methodologies for constructing a Kalman filter based on transformed   measurements, were created. Conclusion. The use of explicit expressions for coordinate transformation, accompanied by compensation for systematic errors, illustrates the potential for a substantial enhancement in accuracy when the errors of primary measurements increase. This improvement can be achieved when applying both direct and straightforward coordinate recalculation methods and a Kalman filter for transformed measurements within the global Cartesian coordinate system.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>траекторное сопровождение целей</kwd><kwd>преобразование с компенсацией систематических ошибок</kwd><kwd>фильтр Калмана с преобразованными измерениями</kwd><kwd>матрица вращения координат</kwd><kwd>локальная сферическая система координат</kwd><kwd>глобальная сферическая система координат</kwd></kwd-group><kwd-group xml:lang="en"><kwd>target trajectory tracking</kwd><kwd>transformation with systematic error compensation</kwd><kwd>Kalman filter with transformed measurements</kwd><kwd>coordinate rotation matrix</kwd><kwd>local spherical coordinate system</kwd><kwd>global spherical coordinate system</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">Peculiarities of state control to water objects with using of radar systems / D. 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