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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">10.32603/1993-8985-2018-21-1-50-55</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-210</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>Модифицированный алгоритм Банкрофта  для систем мультилатерации</article-title><trans-title-group xml:lang="en"><trans-title>Modified Bancroft Algorithm for Multilateration Systems</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>Монаков</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Monakov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Монаков Андрей Алексеевич – доктор технических наук (2000), профессор (2005) кафедры радиотехнических систем.Почетный машиностроитель РФ (2005), почетный работник высшего профессионального образования РФ (2006).</p><p>Автор более 150 научных работ.</p><p>Сфера научных интересов – радиолокация протяженных целей; цифровая обработка сигналов; исследование природных сред радиотехническими методами; вопросы управления воздушным движением. </p><p>ул. Большая Морская, д. 67, лит. А, Санкт-Петербург, 190000. </p></bio><bio xml:lang="en"><p>Andrej A. Monakov – D.Sc. in Engineering (2000), Professor (2005) of the Department of Radio Engineering Systems.  Honored Mechanical Engineer of the Russian Federation (2005), Honored Worker of Higher Professional Education of the Russian Federation (2006).</p><p>The author of more than 150 scientific publications.</p><p>Area of expertise: long-range radar, digital signal processing, research of natural environments by radio engineering methods, issues of air traffic control.</p><p>67, Bolshaya Morskaya Str., bld. A, 190000, St. Petersburg.</p></bio><email xlink:type="simple">a_monakov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет  аэрокосмического приборостроения.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State University of Aerospace Instrumentation.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>28</day><month>02</month><year>2018</year></pub-date><volume>0</volume><issue>1</issue><fpage>50</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Монаков А.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Монаков А.А.</copyright-holder><copyright-holder xml:lang="en">Monakov A.A.</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/210">https://re.eltech.ru/jour/article/view/210</self-uri><abstract><p>В системах мультилатерации для оценки местоположения (МП) объектов часто используется алгоритм Банкрофта, синтезированный для оценки МП объектов в спутниковых системах навигации. Алгоритм позволяет прямым способом получить оценку МП и не требует больших вычислительных затрат при реализации. Данные свойства выгодно отличают этот алгоритм от алгоритмов, работающих на основе решения оптимизационных задач. Однако, как показывают результаты математического моделирования, точность получаемых с помощью алгоритма оценок может быть в несколько раз ниже, чем потенциально достижимая. Предлагается способ модификации алгоритма Банкрофта, который состоит в уточнении оценок Банкрофта путем применения метода малых возмущений. Показано, что использование предлагаемой модификации позволяет в 2,5–3 раза увеличить точность оценок МП объекта и сделать ее равной потенциально достижимой. При этом сложность модифицированного алгоритма возрастает незначительно.</p></abstract><trans-abstract xml:lang="en"><p>In multilateration systems, Bancroft algorithm is often used to estimate the location of objects. This algorithm is synthesized for satellite navigation systems. The algorithm allows to obtain the location estimation by means of direct method and does not require significant computing costs. These properties set it apart from algorithms using optimization approaches. However, according to the results of computer simulation, the accuracy of estimation yielded by the algorithm can be several times worse than potentially enable one. The article proposes a method for modifying the Ban-croft algorithm. Modification involves refining the Bancroft estimates by applying the method of small perturbations. The article shows that the use of the proposed modification allows to increase the accuracy of estimates by 2.5–3 times and to make it equal to the Cramer-Rao boundary. At the same time, the complexity of the modified algorithm grows in-significantly.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>радионавигация</kwd><kwd>мультилатерация</kwd><kwd>оценка местоположения</kwd><kwd>алгоритм Банкрофта</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Radio Navigation</kwd><kwd>Multilateration</kwd><kwd>Position Estimation</kwd><kwd>Bancroft Algorithm</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">URL: https://en.wikipedia.org/wiki/Trilateration (дата обращения: 01.02.2018).</mixed-citation><mixed-citation xml:lang="en">Available at: https://en.wikipedia.org/wiki/Trilateration (accessed: 01.02.2018).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Multilateration (MLAT) Concept of Use. ICAO Asia and Pacific Office, Sept. 2007. 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