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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">10.32603/1993-8985-2025-28-3-73-84</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-1017</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>РАДИОТЕХНИЧЕСКИЕ СРЕДСТВА ПЕРЕДАЧИ, ПРИЕМА И ОБРАБОТКИ СИГНАЛОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADIO ELECTRONIC FACILITIES FOR SIGNAL TRANSMISSION, RECEPTION AND PROCESSING</subject></subj-group></article-categories><title-group><article-title>Обнаружение, оценка параметров и пеленгование периодических импульсных сигналов</article-title><trans-title-group xml:lang="en"><trans-title>Detection, Parameter Estimation and Direction Finding of Periodic Pulse Signals</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-7077-3611</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Манелис</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Manelis</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Манелис Владимир Борисович – доктор технических наук (2010), ведущий научный сотрудник </p><p> Автор более 130 научных работ. Сфера научных интересов: системы связи; радиомониторинг; алгоритмы приема и обработки сигналов.</p><p>101б, Рабочий пр., Воронеж, 394024</p></bio><bio xml:lang="en"><p>Vladimir B. Manelis, Dr Sci. (Eng.) (2010), leading researcher </p><p>The author of more than 70 scientific publications. Area of expertise: communication systems; radiomonitoring; algorithms for receiving and processing signals.</p><p>101b, Rabochiy Ave., Voronezh 394024</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-3054-5540</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фаустов</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Faustov</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фаустов Иван Сергеевич – инженер по специальности "Радиоэлектронные системы и комплексы" (2021), аспирант кафедры радиотехники; научный сотрудник </p><p>Автор 11 научных работ. Сфера научных интересов: радиомониторинг; алгоритмы приема и обработки сигналов; цифровая обработка сигналов.</p><p>101б, Рабочий пр., Воронеж, 394024</p></bio><bio xml:lang="en"><p>Ivan S. Faustov, engineer in Radio-electronic devices and systems (2021), Postgraduate student of the Department of Radio Engineering; researcher </p><p>The author of 11 scientific publications. Area of expertise: radiomonitoring; algorithms for receiving and processing signals; digital signal processing.</p><p>101b, Rabochiy Ave., Voronezh 394024</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5268-1114</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козьмин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozmin</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козьмин Владимир Алексеевич – кандидат технических наук (1989), доцент (1989), директор по научной работе </p><p>Автор более 200 научных работ. Сфера научных интересов: радиомониторинг; алгоритмы приема и обработки сигналов; цифровая обработка сигналов.</p><p>101б, Рабочий пр., Воронеж, 394024</p></bio><bio xml:lang="en"><p>Vladimir A. Kozmin, Cand. Sci. (Eng) (1989), Associate Professor (1989), Director for scientific work </p><p>The author of more than 200 scientific publications. Area of expertise: radiomonitoring; algorithms for receiving and processing signals; digital signal processing.</p><p>101b, Rabochiy Ave., Voronezh 394024</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">АО "ИРКОС"<country>Россия</country></aff><aff xml:lang="en">JSC "IRCOS"<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">АО "ИРКОС"; ФГБОУ ВО "Воронежский государственный технический университет"<country>Россия</country></aff><aff xml:lang="en">JSC "IRCOS"; Voronezh State Technical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>05</day><month>07</month><year>2025</year></pub-date><volume>28</volume><issue>3</issue><fpage>73</fpage><lpage>84</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Манелис В.Б., Фаустов И.С., Козьмин В.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Манелис В.Б., Фаустов И.С., Козьмин В.А.</copyright-holder><copyright-holder xml:lang="en">Manelis V.B., Faustov I.S., Kozmin V.A.</copyright-holder><license 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/1017">https://re.eltech.ru/jour/article/view/1017</self-uri><abstract><p>Введение. Периодические импульсные сигналы (ПИС) находят широкое применение в различных областях, включая радиолокацию. Параметры ПИС, такие, как период, длительность и форма импульсов, радиочастотное наполнение, могут значительно варьироваться и, как правило, априори неизвестны. В условиях априорной неопределенности и при низких отношениях сигнал/шум актуальная задача обнаружения ПИС, оценки его параметров и пеленгования источника является нетривиальной.Цель работы. Разработка алгоритмов обнаружения, оценки параметров и пеленгования периодических импульсных сигналов в условиях низких значений отношения сигнал/шум и отсутствия априорной информации о параметрах ПИС.Материалы и методы. При решении поставленной задачи использовались методы статистической радиотехники, математической статистики, оценивания параметров сигналов на фоне помех, имитационного компьютерного моделирования.Результаты. Разработаны простые в реализации алгоритмы обнаружения периодических импульсных сигналов, оценки их параметров и пеленгования источника. Методом компьютерного моделирования получены характеристики помехоустойчивости алгоритмов. Выполнено их успешное тестирование посредством приема реальных сигналов. Показано, что помехоустойчивость алгоритмов растет с уменьшением скважности ПИС. Разработанные алгоритмы позволяют отличать ПИС от сигналов беспроводных систем связи, таких, как GSM, UMTS, LTE, Wi-Fi, 5G, имеющих периодическую компоненту, но не являющихся импульсными.Заключение. Полученные алгоритмы успешно функционируют при отсутствии априорной информации о параметрах периодического импульсного сигнала и при низких отношениях сигнал/шум (до –15 дБ). Показан существенный выигрыш в помехоустойчивости пеленгования по сравнению со стандартным фазоразностным алгоритмом. Оценка параметров периодического импульсного сигнала может быть использована для идентификации источника. </p></abstract><trans-abstract xml:lang="en"><p>Introduction. Periodic pulse signals are used in various fields, including radar systems. The parameters of periodic pulse signals, such as period, pulse duration and shape, and radio frequency content, can vary significantly and, as a rule, are unknown a priori. Under the conditions of a priori uncertainty and low signal-to-noise ratios, the detection of periodic pulse signals, estimation of their parameters, and direction finding of the source is a non-trivial task.Aim. To develop algorithms for detecting, estimating parameters, and direction finding of periodic pulse signals in the presence of low signal-to-noise ratios and the absence of a priori information about the parameters of a periodic pulse signal.Materials and methods. The methods of statistical radio engineering, mathematical statistics, estimation of signal parameters against interference, and computer simulation were used.Results. Simple-to-implement algorithms for detecting periodic pulse signals, evaluating their parameters, and direction finding of the source have been developed. The noise immunity characteristics of the algorithms obtained by computer simulation were successfully tested when receiving actual signals. The noise immunity of the algorithms was shown to increase with a decrease in the duty ratio of the signal. The developed algorithms allow periodic pulse signals to be distinguished from signals of wireless communication systems, such as GSM, UMTS, LTE, Wi-Fi, 5G. The latter signals, although having a periodic component, are not pulsed signals.Conclusion. The developed algorithms function successfully in the absence of a priori information about the parameters of a periodic pulse signal and at low signal-to-noise ratios (up to –15 dB). A significant gain in the noise immunity of direction finding was achieved in comparison with the standard phase difference algorithm. The parameters of a periodic pulse signal evaluated using the developed algorithms can be used for source identification.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>периодический импульсный сигнал</kwd><kwd>антенная решетка</kwd><kwd>обнаружение сигналов</kwd><kwd>оценка параметров</kwd><kwd>пеленгование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>periodic pulse signal</kwd><kwd>antenna array</kwd><kwd>signal detection</kwd><kwd>parameter estimation</kwd><kwd>direction finding</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">Коротков В. 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