零中频就是信号直接由RF变到基带，不经过中频的调制解调方法。
Compared with the receiver system at present and combined with the portable requirement,decided to adopt the Zero-IF receiver.
通过对目前接收机体制的比较,结合项目便携式需求,确定本系统接收机采用零中频体制。
参考来源 - 频率步进穿墙雷达系统设计及仿真研究The receivers have four common types of architectures: Heterodyne, Homodyne, Image-Reject and Digital-IF. Of course, the performance and the integrated extent vary with the variety of the receiver architectures.
当前常见的接收机前端结构有超外差、零中频、低中频和宽中频接收机等,接收机结构的变化和发展体现了其性能的改善和集成度的提高。
参考来源 - 模拟集成电路设计The receiving part of the transceiver has also adopted zero-intermidiate frequency (zero-IF) receiver in order to reduce the cost further more.
为了进一步降低系统成本,在接收部分还采用了零中频接收机。
参考来源 - 基于频域采样的声表面波射频识别系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
介绍了用零中频技术将扫频仪改造成频谱仪的一种方法。
This paper presents a new method for Sweep Oscillator transform to the Spectrum Analyzer by Zero-IF technique.
设计了一种用于零中频gps接收机的低闪烁噪声混频器。
A low flicker noise mixer for zero-IF GPS receiver is presented.
该系统通过采用正交双通道零中频处理量化相位，处理效果较佳。
The system uses the method of orthogonal double-channel zero intermediate-frequency, and the result is satisfying.
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