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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">tuzsut</journal-id><journal-title-group><journal-title xml:lang="ru">Труды учебных заведений связи</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Telecommunication Universities</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-324X</issn><issn pub-type="epub">2712-8830</issn><publisher><publisher-name>СПбГУТ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31854/1813-324X-2024-10-2-48-56</article-id><article-id custom-type="edn" pub-id-type="custom">FAKNHQ</article-id><article-id custom-type="elpub" pub-id-type="custom">tuzsut-568</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>ЭЛЕКТРОНИКА, ФОТОНИКА, ПРИБОРОСТРОЕНИЕ И СВЯЗЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, PHOTONICS, INSTRUMENTATION AND COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Структура телеметрической радиолинии  с расширением спектра для низкоорбитального малого космического аппарата</article-title><trans-title-group xml:lang="en"><trans-title>Structure of Spread Spectrum Telemetry Radio Link for LEO Small Satellite</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-2818-6491</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Караваев</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karavaev</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер кафедры радиосистем и обработки сигналов </p></bio><email xlink:type="simple">karavaev.da@sut.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/0000-0003-4148-3208</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глушанков</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Glushankov</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор, профессор кафедры радиосистем и обработки сигналов </p></bio><email xlink:type="simple">glushankov.ei@sut.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Санкт-Петербургский государственный университет телекоммуникаций им. проф. М.А. Бонч-Бруевича<country>Россия</country></aff><aff xml:lang="en">The Bonch-Bruevich Saint-Petersburg State University of Telecommunications<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>04</day><month>05</month><year>2024</year></pub-date><volume>10</volume><issue>2</issue><fpage>48</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Караваев Д.А., Глушанков Е.И., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Караваев Д.А., Глушанков Е.И.</copyright-holder><copyright-holder xml:lang="en">Karavaev D., Glushankov E.</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://tuzs.sut.ru/jour/article/view/568">https://tuzs.sut.ru/jour/article/view/568</self-uri><abstract><p>В работе рассматривается вопрос создания телеметрической радиолинии для малых космических аппаратов, в частности формата CubeSat. Существенным ограничением аппаратов данного формата являются габариты антенных элементов и мощность передающей аппаратуры, что приводит к низкой энергодоступности сигнала на наземном приемном пункте. Предложена структура информационного кадра физического уровня радиолинии, построенного на основе сигнально-кодовой конструкции с прямым расширением спектра, что позволяет добиться усиления сигнала для достижения необходимого уровня помехозащищенности. Реализация усиления подобным образом позволяет осуществлять адаптивное управление пропускной способностью канала в зависимости от изменения отношения сигнал-шум при изменении дальности от аппарата до пункта приема. С учетом предложенной структуры информационного кадра проведен анализ объема получаемой телеметрической информации в течение сеанса связи в зависимости от максимального угла места наблюдения аппарата. Также предложен вариант структуры взаимодействия узлов системы связи на канальном уровне.</p></abstract><trans-abstract xml:lang="en"><p>The paper considers the design of telemetry radio link for low Earth orbit (LEO) satellites, particularly based on CubeSat format. A significant limitation of such spacecrafts are the available dimensions for antennas and the transmitting power, which leads to low energy level at the ground receiving point of transmitted signal. The article presents the physical level structure for data frame based on direct sequence spread spectrum technique, which allows for additional signal gain to achieve the required level of link performance. Using such principle also make possible to implement adaptive data rate control depending on dynamics in signal-to-noise ratio when the distance from the satellite to the ground point changes. For proposed data frame structure, an analysis of received information size during a communication session was carried out, which is parameterized on the maximum observable elevation angle of the satellite. The issue of datalink layer interaction between devices is also considered.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спутниковая радиолиния</kwd><kwd>метод расширения спектра прямой последовательностью</kwd><kwd>низкоорбитальный космический аппарат</kwd><kwd>адаптивное управление пропускной способностью</kwd></kwd-group><kwd-group xml:lang="en"><kwd>satellite radio link</kwd><kwd>direct sequence spread spectrum</kwd><kwd>low Earth orbit satellite</kwd><kwd>adaptive data rate</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">Cappelletti C., Battistini S., Malphrus B.K. CubeSat Handbook: From Mission Design to Operations. Elsevier, 2021. 469 p.</mixed-citation><mixed-citation xml:lang="en">Cappelletti C., Battistini S., Malphrus B.K. CubeSat Handbook: From Mission Design to Operations. Elsevier; 2021. 469 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Sagari S., Baysting S., Saha D., Seskar I., Trappe W., Raychaudhuri D. Coordinated dynamic spectrum management of LTE-U and Wi-Fi networks // Proceedings of the International Symposium on Dynamic Spectrum Access Networks (DySPAN, Stockholm, Sweden, 29 September 2015). IEEE, 2015. PP. 209‒220. DOI:10.1109/DySPAN.2015.7343904</mixed-citation><mixed-citation xml:lang="en">Sagari S., Baysting S., Saha D., Seskar I., Trappe W., Raychaudhuri D. Coordinated dynamic spectrum management of LTE-U and Wi-Fi networks. Proceedings of the International Symposium on Dynamic Spectrum Access Networks, DySPAN, 29 September 2015, Stockholm, Sweden. IEEE; 2015. p.209‒220. DOI:10.1109/DySPAN.2015.7343904</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Maral G., Bousquet M., Sun Z. Satellite Communications Systems: Systems, Techniques and Technology. Wiley, 2020. 800 p.</mixed-citation><mixed-citation xml:lang="en">Maral G., Bousquet M., Sun Z. Satellite Communications Systems: Systems, Techniques and Technology. Wiley; 2020. 800 p.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Рекомендация МСЭ-R P.618-13 (12/2017) Данные о распространении радиоволн и методы прогнозирования, необходимые для проектирования систем связи Земля-космос.</mixed-citation><mixed-citation xml:lang="en">Rec. ITU-R P.618-13 Propagation data and prediction methods required for the design of Earth-space telecommunication systems. December 2017.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Ali I., Al-Dhahir N., Hershey J.E. Doppler characterization for LEO satellites // IEEE Transactions on Communications. 1998. Vol. 46. Iss. 3. PP. 309‒313. DOI:10.1109/26.662636</mixed-citation><mixed-citation xml:lang="en">Ali I., Al-Dhahir N., Hershey J.E. Doppler characterization for LEO satellites. IEEE Transactions on Communications. 1998;46(3):309‒313. DOI:10.1109/26.662636</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Blümm C., Heller C., Fourestie B., Weigel R. Air-to-ground channel characterization for OFDM communication in C-Band // Proceedings of the 7th International Conference on Signal Processing and Communication Systems, ICSPCS, Carrara, Australia, 16‒18 December 2013). IEEE, 2013. PP. 1‒8. DOI:10.1109/ICSPCS.2013.6723935</mixed-citation><mixed-citation xml:lang="en">Blümm C., Heller C., Fourestie B., Weigel R. Air-to-ground channel characterization for OFDM communication in C-Band. Proceedings of the 7th International Conference on Signal Processing and Communication Systems, ICSPCS, 16‒18 December 2013, Carrara, Australia. IEEE; 2013. p.1‒8. DOI:10.1109/ICSPCS.2013.6723935</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Cid E.L., Sanchez M.G., Alejos A.V. Wideband Analysis of the Satellite Communication Channel at Ku- and X-Bands // IEEE Transactions on Vehicular Technology. 2016. Vol. 65. Iss. 4. PP. 2787‒2790. DOI:10.1109/TVT.2015.2425037</mixed-citation><mixed-citation xml:lang="en">Cid E.L., Sanchez M.G., Alejos A.V. Wideband Analysis of the Satellite Communication Channel at Ku- and X-Bands. IEEE Transactions on Vehicular Technology. 2016;65(4):2787‒2790. DOI:10.1109/TVT.2015.2425037</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Triple Feed Patch antenna // Maarten Baert's website. 2019. URL: https://www.maartenbaert.be/quadcopters/antennas/triple-feed-patch-antenna (дата обращения 20.01.2024)</mixed-citation><mixed-citation xml:lang="en">Maarten Baert's website. Triple Feed Patch antenna. 2019. URL: https://www.maartenbaert.be/quadcopters/antennas/triple-feed-patch-antenna [Accessed 20.01.2024]</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Torrieri D. Principles of Spread-Spectrum Communication Systems. Cham: Springer, 2018. 727 p. DOI:10.1007/978-3-319-70569-9</mixed-citation><mixed-citation xml:lang="en">Torrieri D. Principles of Spread-Spectrum Communication Systems. Cham: Springer; 2018. 727 p. DOI:10.1007/978-3-319-70569-9</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">ГОСТ Р 55947–2014. Телевидение вещательное цифровое. Приемники для эфирного цифрового телевизионного вещания DVB-T2. Основные параметры. Технические требования. Методы измерений и испытаний. М.: Стандартинформ, 2014. 27 с.</mixed-citation><mixed-citation xml:lang="en">GOST Р 55947–2014. Digital Video Broadcasting. The receivers for terrestrial digital TV broadcasting DVB-T2. The basic parameters. Technical requirements. Measuring and test methods. Moscow: Standardinform Publ.; 2014. 27 p.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Tsatsaragkos I., Paliouras V. A Reconfigurable LDPC Decoder Optimized for 802.11n/ac Applications // IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 2018. Vol. 26. Iss. 1. PP. 182‒195. DOI:10.1109/TVLSI.2017.2752086</mixed-citation><mixed-citation xml:lang="en">Tsatsaragkos I., Paliouras V. A Reconfigurable LDPC Decoder Optimized for 802.11n/ac Applications. IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 2018;26(1):182‒195. DOI:10.1109/TVLSI.2017.2752086</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Richards М.A. Fundamentals of Radar Signal Processing. McGraw-Hill, 2005. 513 p.</mixed-citation><mixed-citation xml:lang="en">Richards М.A. Fundamentals of Radar Signal Processing. McGraw-Hill; 2005. 513 p.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Stein S. Algorithms for ambiguity function processing // IEEE Transactions on Acoustics, Speech, and Signal Processing. 1981. Vol. 29. Iss. 3. PP. 588‒599. DOI:10.1109/TASSP.1981.1163621</mixed-citation><mixed-citation xml:lang="en">Stein S. Algorithms for ambiguity function processing. IEEE Transactions on Acoustics, Speech, and Signal Processing. 1981;29(3):588‒599. DOI:10.1109/TASSP.1981.1163621</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Hamkins J., Marvin K.S. Autonomous Software‐Defined Radio Receivers for Deep Space Applications. Wiley, 2006. 464 p.</mixed-citation><mixed-citation xml:lang="en">Hamkins J., Marvin K.S. Autonomous Software‐Defined Radio Receivers for Deep Space Applications. Wiley; 2006. 464 p.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Noels N., Steendam H., Moeneclaey M., Bruneel H. Carrier phase and frequency estimation for pilot-symbol assisted transmission: bounds and algorithms // IEEE Transactions on Signal Processing. 2005. Vol. 53. Iss. 12. PP. 4578‒4587. DOI:10.1109/TSP.2005.859318</mixed-citation><mixed-citation xml:lang="en">Noels N., Steendam H., Moeneclaey M., Bruneel H. Carrier phase and frequency estimation for pilot-symbol assisted transmission: bounds and algorithms. IEEE Transactions on Signal Processing. 2005;53(12):4578‒4587. DOI:10.1109/TSP.2005.859318</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
