frequency up-conversion [电子] 频率上转换
two-photon frequency up-conversion 双光子频率上转换
all-optlcal frequency up-conversion 全光频率上转换
time resolved frequency up-conversion method 时间分辨频率上转换方法
two-frequency up-conversion 频上转换
two frequency up conversion 双频上转换
Conventional dual up-conversion transmitter usually employs an intermediate frequency (IF) mixer and a radio frequency (RF) mixer to convert baseband user signal to IF and RF in sequence.
传统双上变频发射器通常采用中频(IF)混合器和射频(RF)混合器将基带用户信号依次转换成IF和RF。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
采用德国西门子IGBT变频，电压反馈串联谐振电路。变换效率高达97.5%以上。
Special requirement in high speed guide way inspection including inspection frequency up to 200~1000HZ, synchronization in 32 channels and 16 bits A/D conversion are considered in this paper.
轨道梁检测要求检测频率达到200~1000HZ，同时要求所有32路通道同步采集数据，并且要达到16位的A/D转换精度。
应用推荐