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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2025-68-5-450-455</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-376</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF NOTES</subject></subj-group></article-categories><title-group><article-title>Квазиоптимальный алгоритм планирования движения робототехнической системы по кратчайшему пути со случайной выборкой</article-title><trans-title-group xml:lang="en"><trans-title>Quasi-optimal algorithm for planning a robotic system motion along the shortest path with random sampling</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>Довгополик</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Dovgopolik</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Илья Сергеевич Довгополик — магистр, факультет систем управления и робототехники; инженер</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ilya S. Dovgopolik — MSc, Faculty of Control Systems and Robotics; engineer</p><p>St. Petersburg</p></bio><email xlink:type="simple">isdovgopolik@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисов</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisov</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Игоревич Борисов — канд. техн. наук, доцент, факультет систем управления и робототехники</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Oleg I. Borisov — PhD, Associate Professor, Faculty of Control Systems and Robotics</p><p>St. Petersburg</p></bio><email xlink:type="simple">borisov@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution></aff><aff xml:lang="en"><institution>ITMO University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>06</month><year>2025</year></pub-date><volume>68</volume><issue>5</issue><fpage>450</fpage><lpage>455</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/376">https://pribor.ifmo.ru/jour/article/view/376</self-uri><abstract><p>Рассматривается проблема поиска маршрута движения робототехнической системы в пространстве с препятствиями. В качестве базы для решения задачи выбран класс алгоритмов планирования пути со случайной выборкой анализируемых точек пространства. Представлена модификация алгоритма двунаправленного быстроисследующего случайного дерева с динамически изменяющейся зоной поиска, которая определяется геометрически. Представленная модификация позволяет находить более короткие маршруты движения и снизить нагрузку на вычислительные ресурсы по сравнению с предыдущими модификациями.</p></abstract><trans-abstract xml:lang="en"><p>The problem of searching for a route of movement of a robotic system in a space with obstacles is considered. As a basis for solving the problem, a class of algorithms for path planning with a random sample of analyzed points of space is selected. A modification of the bidirectional fast-following random tree algorithm with a dynamically changing search zone, which is determined geometrically, is presented. The presented modification allows finding shorter routes of movement and reducing the load on computing resources compared to previous modifications.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>планирование движения</kwd><kwd>быстроисследующее случайное дерево</kwd><kwd>робототехническая система</kwd><kwd>кратчайший путь</kwd><kwd>обход препятствий</kwd></kwd-group><kwd-group xml:lang="en"><kwd>motion planning</kwd><kwd>rapidly-exploring random tree</kwd><kwd>robotic system</kwd><kwd>shortest path</kwd><kwd>obstacle avoidance</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования Российской Федерации (проект № FSER-2025-0002) и НИРСИИ Университета ИТМО (проект № 640112)</funding-statement><funding-statement xml:lang="en">The work was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation (project no. FSER-2025-0002) and the Student Scientific Association of Researches in the Field of Artificial Intelligence of ITMO University (project no. 640112)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Hauser K. Motion and Path Planning. Berlin, Heidelberg: Springer, 2020. P. 1–11.</mixed-citation><mixed-citation xml:lang="en">Hauser K. Motion and Path Planning, Berlin, Heidelberg, Springer, 2020, рр. 1–11.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">LaValle S. М. Rapidly-exploring random trees : A new tool for path planning // The Annual Research Report. Iowa State Univ., 1998. Oct.</mixed-citation><mixed-citation xml:lang="en">LaValle S.М. 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