V2EX amplitude modulator

Amplitude Modulator

释义 Definition

幅度调制器(AM 调制器):一种把信息信号(如语音、音乐或数据)加载到载波信号的幅度上的电路或设备,用于产生幅度调制(AM)信号(常见于无线电发射与通信系统)。

发音 Pronunciation (IPA)

  • /mpltjud mdjletr/
  • /mpltud mdletr/

例句 Examples

The amplitude modulator changes the carrier signal.
幅度调制器会改变载波信号(的幅度)。

In the transmitter, an amplitude modulator combines the audio input with a high-frequency carrier to produce an AM signal.
在发射机中,幅度调制器把音频输入与高频载波结合,从而产生 AM 信号。

词源 Etymology

amplitude 源自拉丁语 amplitudo(“宽广、大小”),在物理与工程中引申为“振幅/幅度”;modulator 来自拉丁语词根 *mod-*(“度量、节制、调整”),指“用来调制/调整的装置”。合起来即“对幅度进行调制的装置”。

相关词 Related Words

文学与著作 Literary Works

  • The Art of Electronics(Horowitz & Hill):在模拟通信与信号处理相关章节中会讨论调制概念(包括 AM 与调制电路)。
  • Communication Systems(Simon Haykin):通信系统基础内容中涉及幅度调制与相应的调制器/解调器结构。
  • Radio Engineering(Frederick E. Terman):经典无线电工程著作,介绍 AM 发射与调制电路。
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