双标度频率计 frequency meter with double scale 调频载波 frequency modulated carrier 调频回旋加速器 frequency modulated cyclotron ..
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pulsed frequency modulated carrier 脉冲调频载波
frequency modulated carrier current telephony 调频式载波电话
frequency-modulated carrier current telephony [通信] 调频载波电流电话
To estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.
针对未知调制类型情况下数字调制信号的载波频率估计问题，提出了一种适用于数字调制信号的载波频率估计方法。
The spectrum of amplitude modulated signal are two half magnitude spectrums of base band signal positive and negative shifted by a carrier or R. F. frequency.
调幅讯号之频谱为一半强度基频讯号之频谱分别正负位移一射频或载波之频率。
At the receiver, the modulated optical carrier can be examined from a frequency filter to render target detection.
在接收端，通过频率滤波实现对编码信号的提取，由编码信号的信号处理实现激光雷达水下目标探测。
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