Methods 107 cases with scapulohumeral periarthritis were treated by modulation random intermediate frequency current.
方法采用调制随机中频电流机治疗肩周炎患者107例。
According to GPS signal structure and modulation characteristics, a GPS intermediate frequency digital signal is simulated under the condition of noise environment.
根据GPS信号的结构和调制特点，加上环境噪声，模拟出GPS中频数字信号。
In order to decrease the mirror frequency interference, cross interference and inter-modulation interference, double IF (Intermediate frequency) is adopted in the receiver.
为了降低镜频干扰、交调和互调干扰，接收机采用了双中频方案。
The intermediate frequency circuit includes QPSK modulation based on HFA3724, PLL circuit based on MB1502.
中频部分主要由HFA3724正交调制解调器和基于MB1502的锁相频率合成电路等组成。
An intermediate frequency amplifier is designed to suppress the parasitic amplitude modulation and suppression effect is also analyzed.
设计了一种中频放大器以抑制寄生调幅干扰并分析抑制效果。
An intermediate frequency amplifier is designed to suppress the parasitic amplitude modulation and suppression effect is also analyzed.
设计了一种中频放大器以抑制寄生调幅干扰并分析抑制效果。
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