• 零中频接收机 - 引用次数：6

  This paper first reviewes the development history of receiver, compares with the characteristic of superheterodyne receiver and zero-IF receiver. introduces the concept of frequency synthesis, it has analyzed the principle and the basic structure of DDS.

  本文首先回顾了接收机的发展历史,并对超外差和零中频接收机的特性进行了比较。 介绍了频率合成的概念,分析了DDS的工作原理及其基本结构。

  参考来源 - 短波接收机高精度本振信号源的设计与实现

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