›› 2014, Vol. 27 ›› Issue (8): 131-.

• 论文 • 上一篇    下一篇

一种信道化测频接收机的工程实现

薛明军,张红梅   

  1. (中国电子科技集团公司第13研究所 第16专业部,河北 石家庄 050051)
  • 出版日期:2014-08-15 发布日期:2014-07-21
  • 作者简介:薛明军(1966—),男,高级工程师。研究方向:机载,弹载以及航空航天领域的微波接收机。E-mail:xuemingjun@tom.com

Engineering of a Channelized Frequency Measurement Receiver

XUE Mingjun,ZHANG Hongmei   

  1. (Sixteenth Specialized Units,13th Research Institute,China Electronics Technology Group Corporation,Shijiazhuang 050051,China)
  • Online:2014-08-15 Published:2014-07-21

摘要:

将Ku波段射频信号下变频为1.25~1.75 GHz的中频信号,经26路功分器功分为26路信号,每路经过相互交叠的带通滤波器和检波器,当频率位于某个通道的滤波器内时,该通道检波器输出对应检波电压,将该检波电压与相邻通道检波电压和绝对电平进行比较,并将比较结果送入FPGA,由FPGA进行判断、编码,输出对应的频率编码、同时到达信号,准备好指示等。

关键词: 信道化, 测频, 接收机

Abstract:

The Ku RF signal is changed to 1.25~1.75 GHz IF signal by down-converter and divided into 26-channel signal by splitter.Each channel signal is followed by filter and power detector.When the RF frequency falls into a channel filter,the channel detector outputs detector voltage which is compared with neighboring channel detector voltage and absolute voltage,then outputs the results to FPGA.FPGA generates frequency codes,simultaneous signals and ready indication by estimating and coding.

Key words: channelized;frequency measurement;receiver

中图分类号: 

  • TN851