摘要
散射通信中由于信道和环境等诸多干扰因素影响,现有自动增益控制(AGC)存在一致性差和易自激等不足。根据AGC设计思路,提出了一种改进型AGC的设计实现,以实际工程为例,给出了关键设计实现。通过性能测试及对比分析表明,采用级联可变增益放大器AD8367和反馈回路组成的多通道AGC,实际工程应用效果显著,工作稳定可靠,尤其还减少了器材消耗,降低了生产成本。
Present AGC used in scatter communication has some disadvantages such as bad conformity and self-excitation because of the interferences from channel and circumstance.An improved AGC design is presented according to the AGC design rule which is implemented in project and whose crucial design is presented.It is proved by performance test and comparative analysis that the multi-channel AGC which is composed of variable gain amplifier AD8367 and feedback loop is simple and easy to debug.It is more important that the used devices are reduced and the production costs are reduced dramatically.The improved AGC has a considerable application in projects.
出处
《无线电工程》
2010年第12期61-64,共4页
Radio Engineering
