›› 2011, Vol. 24 ›› Issue (5): 78-.

• 论文 • 上一篇    下一篇

一种双通道接收机的设计

李建国,施健   

  1. (陕西凌云电器集团有限公司 设计所,陕西 宝鸡 721006)
  • 出版日期:2011-05-15 发布日期:2011-05-19
  • 作者简介:李建国(1969-),男,工程师。研究方向:无线电导航及电磁兼容。

A Double Channel Receiver

 LI Jian-Guo, SHI Jian   

  1. (Besign Insititute,Shaanxi Lingyun Appliance Corporation Co.,Ltd,Baoji 721006,China)
  • Online:2011-05-15 Published:2011-05-19

摘要:

工程中,对数放大接收机的动态范围很大,但只能保持频率和相位信息,损失幅度信息。而线性接收机在AGC未建立时的动态范围很小,却可以完整保留幅度信息。文中介绍了一种双通道接收机的设计方法,该设计具有一个线性通道和一个对数通道,利用对数通道的输出,扩大了线性通道的瞬态响应范围。

关键词: 线性通道, 对数通道, 瞬态响应

Abstract:

In engineering,logarithmic amplifier receivers have very wide dynamic range,but it can hold only the frequency and phase information while amplitude information is lost.Linear receivers have very small a dynamic range when AGC is not established,but can reserve all amplitude information.This article introduces a double channel receiver design methods,by which the receiver has a linear channel and a logarithmic channel.Logarithm channel output is used to expand linear channel transient response range.

Key words: linear channel;logarithmic channel;transient response

中图分类号: 

  • TN851