digital intermediate frequency 中频数字化
whole digital intermediate frequency 全数字中频
digital intermediate frequency system 数字中频系统
digital intermediate frequency remote 数字中频拉远
digital intermediate frequency sampling 数字中频采样
digital intermediate frequency platform 数字中频平台
wideband digital intermediate frequency 宽带数字中频
In the process of signal digital intermediate-frequency received, digital down convertion, frequency tracking of carrier and phase locked loop are the keys.
在信号的中频数字接收过程中，数字下变频、载波频率与相位跟踪是设计的关键所在。
Finally the fruit of research for my master degree presents in the way of actual de-hopping and digital intermediate frequency receivers that have passed the examination.
最终以通过检测的跳频解跳与数字中频接收机的实物作为硕士期间的研究成果呈现。
Combined with the features of virtual instrument, the scheme realizing virtual RF spectrum analyzer is presented and realized in this paper, and digital intermediate frequency method is emphasized.
结合虚拟仪器的特点，提出并实现了一种虚拟射频频谱仪的方案，着重介绍了其中的中频数字化实现方法。
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