1) direct-down-conversion
直接下变频
1.
For the special requirement of frequency sweeping detection of Brillouin scattering in the system,two kinds of schemes were presented considering the principle of heterodyne receivers,which were direct-down-conversion and twice frequency down-conversion.
针对系统对布里渊散射信号进行扫频检测的特殊要求,结合超外差接收机原理,提出了直接下变频和二次下变频两种方案,并对这两种方案的性能及可实现性等进行了系统的分析与比较。
2) DCR
直接下变频接收机
1.
Design and Research on 2.4G DCR RF Front Ends;
2.4G直接下变频接收机射频前端的设计与研究
3) direct conversion
直接变频
1.
Design and realization of direct conversion transmitter based on AD8349;
基于AD8349的无线直接变频发射机设计与实现
2.
The aim of this work is to research the six-port theoretical background, and design a Ka-band direct conversion receiver front-end based-on six-port.
基于六端口技术的直接变频接收机被证明是一种适用于可重构、重复编程、多频带、多标准的很有前途的接收机结构。
5) direct conversion receiver
直接变频接收机
1.
A direct conversion receiver with optimized tolerance to local carrier interference is designed and implemented in a 0.
设计了针对解决900MHz RFID读写器收发机芯片中本地载波干扰问题而优化的直接变频接收机,并在0。
2.
The operating principle of the six-port as a direct conversion receiver in FMCW radar is discussed.
研究了六端口测相位的基本方法,给出了六端口的构成,并把六端口作为直接变频接收机应用在FMCW雷达中,给出了其测速测距的原理。
6) directly convert
直接变频接收
补充资料：直接
不经过中间事物的。与“间接”相对：直接取用｜直接关系。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条