Проектирование и расчетные характеристики SDR наземной станции приема данных изображения наноспутников в S-диапазоне.
Авторы
DOI:
https://doi.org/10.31489/2024No4/79-87Ключевые слова:
Земная станция, программно-определяемая радиостанция, наноспутникАннотация
В статье описаны результаты проектирования, создания и испытаний земной станции передачи и приема информации для низкоорбитальных наноспутников дистанционного зондирования Земли в S-диапазоне. Особенностью решения является использование универсальных недорогих аппаратных платформ SDR на базе программируемых вентильных матриц (FPGA) и микросхемных приемопередатчиков, таких как AD9361. Рассчитаны общая и полезная скорости передачи данных и необходимое соотношение Eb/No, где Eb – энергия одного бита сообщения, No – значение спектральной плотности мощности эквивалентного шума при использовании для кодирования и модуляции сигнала стандарт DVB-S2 MODCOD .
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