短波调制解调器中AGC电路的设计  

Design of AGC Circuit in HF Modem

作　　者：凤光华[1] 郭强[1] 李正东[1] 

机构地区：[1]重庆通信学院,重庆400035

出　　处：《通信对抗》2014年第4期53-55,共3页Communication Countermeasures

摘　　要：在设计短波调制解调器时,大多数设计者往往忽略了输入信号电平大小对整个系统的影响,造成调制解调器性能不佳。自动增益控制(AGC)电路是能够提供稳定电平输出的功能模块,对于改善短波调制解调器的性能具有十分重要的作用。重点讨论了短波调制解调器中AGC电路的工程设计思路和方法。When HF modem is designed, most designers usually ignore the influence of input signal level to the whole system. This thing will make the performance of modem be debased.. The AGC circuit, which is a function model to afford steady level output, can bring very important effect on improving the performance of HF modem. This paper discusses in detail the idea and method of project design of the AGC circuit in HF modem.

关 键 词：短波 调制解调器 AGC AD603 

分 类 号：TN76[电子电信—电路与系统]