zero if receiver 零中频接收机
double-quadratrue zero-IF receiver 双正交零中频接收机
single-quadrature zero-if receiver 单正交零中频接收机
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·2,447,543篇论文数据，部分数据来源于NoteExpress
It is the last part of the application of zero-IF receiver prospect.
文中最后部分对零中频接收机的应用进行了展望。
The zero IF technology is used in the receiver which can simplify the reader circuit and reduce cost significantly.
接收机采用零中频直接变频方案，电路简化，可有效地降低成本。
This paper proposed a novel mechanism of implementing an UHF RFID interrogator based on Embedded Platform, the receiver architecture used Zero-IF Detect Structure.
提出了一种基于嵌入式平台的超高频rfid读写器的实现方案，接收机采用零中频检波技术。
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