模拟通信系统基本过程的分析与探讨

Discussion and Analysis of the basic analog Communication System Process

通信系统一般可以分为信号的发送、信号的传输以及信号的接受3个组成部分。其目的是完成信号的无线电传输。在模拟通信系统中,必须完成信号由低频段向高频段的搬移,也就是说要实现调制。在接收端还需要将信号进行混频、谐振放大、解调、低频放大等相关处理,最终完成通信系统的基本过程。对此进行了论述。

Communication system can be divided into general signal transmission,signal transmission and signal receiving three parts.The aim is to complete the signal of radio transmission.Communication in the simulation system must complete the signal from the low to high frequency shifting,which is to realize modulation.At the receiving end will also need signal mixing,resonant amplification,demodulation,low-frequency amplification and other related processing,eventually completed the basic process of communication system.