中波調(diào)幅發(fā)射接收系統(tǒng)_高頻電路課程設(shè)計(jì)-wenkub
2023-07-16 18:00:54 本頁(yè)面
【正文】 ........................................ 7 3. 音頻信號(hào) ............................................................................................... 7 4. AM 調(diào)制 .................................................................................................. 7 ...................................................................................................... 9 二、超外差接收機(jī) ............................................................................................... 10 概述 ................................................................................................................ 10 1. 本機(jī)震蕩 ............................................................................................. 11 2. 混頻 ..................................................................................................... 11 3. 中頻電路 ............................................................................................. 12 4. 包絡(luò)檢波 ............................................................................................. 14 5. 音頻放大 ...........
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