| 摘要: |
| 本文阐述了新式接收机在强射频干扰中接收微弱信号时，超外差通信原理内部的物理现象及其一般规律的数学描述。 |
| 关键词: 超外差接收机 抗干扰 混频器 非线性变频 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| Analysis of the Communication Interferenceof the Superbetrodyne Receiver |
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| Abstract: |
| This article summarizes the interior physical phenomenon of the superhetrodyne communication principle when receiving weak signals in intersive RF interference,and discribes mathematically its general law.The article also discusses the formation principle and interrelationship of the interference of intermodulation,cross modulation.inverting and mixing and blocking in the front circuit of the receiver,and puts forward the corresponding improving method.The end of the article briefly introduces the dynamic function of the receiver. |
| Key words: Communication,Superhetrodyne Receiver,Suppression of interference, Mixer,Nonlinear Freqency Conversion |
《电讯技术》编辑部 