Frequency shifter 移频器 ; 变频器 ; 频移器
ultra-low frequency phase shifter 超低频移相器
optical frequency shifter 光移频器
frequency shifter effect 频率转换效果
single-side band optical frequency shifter 单边带光移频器
Fiber-Pigtailed AO Frequency Shifter 全光纤声光移频器
Acousto-Optic Frequency Shifter 声光移频器
This paper describes the design of a frequency shifter to suppress acoustic feedback, to be studied by the experimental method.
本文叙述抑制声反馈的频移器的设计，并进行了实验研究。
If the public address system is operated below but too close to the instability condition the frequency shifter can reduce effectively the interference of the regenerative reverberation.
若语言扩声系统临近不稳定状态工作，频移器可以有效地减少再生混响干扰。
Two novel fibre devices, fibre optic frequency shifter and fibre optic polarization controller, are employed in this system. The principle and design method for the two key devices are described.
在该系统中采用了自行研制设计的实现全光纤化的两个关键光纤元件：普通单模光纤频率偏移器和普通单模光纤偏振控制器，介绍了此两光纤元件的基本工作原理和设计方法。
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