2. Принцип работы передающей системы по структурной схеме

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Эпюры напряжений однокаскадного передатчика

а – импульс запуска синхронизатора; б – импульс с подмодулятора; в - импульс с модулятора; г – радиоимпульс с генератора СВЧ

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Рис. 5. Структурная схема многокаскадного передатчика

3. УПРАВЛЕНИЕ КОЛЕБАНИЯМИ ПЕРЕДАТЧИКА

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Рис. 6. Амплитудная модуляция:

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Частотная модуляция

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Фазовая модуляция с изменением фазы на π

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Упрощенная схема модулятора

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Упрощенная принципиальная схема импульсного модулятора

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Задание на самостоятельную работу:

1. Изучить материал занятия;