... phase modulation recording 调相记录 phase modulation system 调相制 phase modulator 调相器，相位调制器 ...
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digital phase modulation system 数字相位调制系统
phase-modulation communication system [通信] 调相通信系统
A laser phase modulation system with acoustooptic modulator is described.
本文叙述了一种包含有声光调制器的激光调相系统。
In the model communications system, the modulation process also is loaded the digital signal in the carrier scope value, the carrier frequency or on the carrier phase.
在典型的通信系统中，调制过程是数字信号加载在载波的幅度值、载波的频率或者载波的相位上。
This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.
对双PWM变频调速系统中的三相PWM整流器及其控制方法进行了研究。
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