V2EX adjacent channel

Adjacent Channel

Definition|释义

adjacent channel:在无线通信/广播中,指紧邻目标信道的相邻频率信道。相邻信道上的信号若过强或滤波不足,可能对目标信道造成邻道干扰(adjacent-channel interference)。

Pronunciation|发音(IPA)

/desnt tnl/

Examples|例句

The receiver can reject interference from an adjacent channel.
接收机可以抑制来自相邻信道的干扰。

Because the transmitter’s filter was poorly designed, energy leaked into the adjacent channel and disrupted nearby communications.
由于发射机滤波器设计不佳,能量泄漏到相邻信道,干扰了附近的通信。

Etymology|词源

adjacent 来自拉丁语 adjaceread- “向、靠近” + jacere “躺、靠”),意为“紧挨着的”;channel 原义为“水道、沟渠”,后来引申为“通道”,在电子通信语境中进一步专指“频率信道/频道”。合在一起就是“紧挨着的(频率)信道”。

Related Words|相关词汇

Literary Works|作品与文献中的用例

  • FCC Rules and Regulations(美国联邦通信委员会法规文本,常讨论 adjacent channel 与邻道泄漏/干扰限制)
  • ITU Radio Regulations(国际电联《无线电规则》,涉及信道划分与相邻信道干扰管理)
  • Theodore S. Rappaport, Wireless Communications: Principles and Practice(经典无线通信教材,常用于解释信道与干扰概念,包括相邻信道问题)
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