Влияние сопутствующей модуляции частоты колебаний амплитудно-модулированного генератора на формирование автодинных сигналов

В. Я. Носков, С. М. Смольский, К. А. Игнатков

Аннотация


Представлены результаты исследований автодинного генератора с комбинированной амплитудно-частотной модуляцией, находящегося под воздействием собственного отраженного излучения. Получены основные соотношения для анализа автодинного отклика одноконтурного генератора в зависимости от величины времени запаздывания отраженного излучения при произвольном законе одновременной модуляции амплитуды и частоты. Выполнены вычисления характеристик амплитудной селекции сигналов автодинных генераторов для случая применения гармонического закона амплитудно-частотной модуляции. Установлены особенности формирования сигналов при различных значениях величин сопутствующей частотной модуляции излучения и параметра обратной связи системы «генератор – объект локации». Результаты экспериментальных исследований, выполненные на примере гибридно-интегрального генератора «Тигель-0,8М» с меза-планарным диодом Ганна 8-мм диапазона, подтвердили выводы теоретического анализа.


Носков В. Я., Смольский С. М., Игнатков К. А. Влияние сопутствующей модуляции частоты колебаний амплитудно-модулированного генератора на формирование автодинных сигналов. Ural Radio Engineering Journal. 2020;4(1):51–83. DOI: 10.15826/urej.2020.4.1.004



Ключевые слова


автодин; автодинный генератор; автодинный сигнал; амплитудная модуляция; частотная модуляция; система ближней радиолокации

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Литература


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