J4 ›› 2010, Vol. 37 ›› Issue (3): 487-491+553.doi: 10.3969/j.issn.1001-2400.2010.03.018

• 研究论文 • 上一篇    下一篇



  1. (1. 西安电子科技大学 电子对抗研究所,陕西 西安  710071;
    2. 空军工程大学 电讯工程学院,陕西 西安  710077)
  • 收稿日期:2009-04-10 出版日期:2010-06-20 发布日期:2010-07-23
  • 通讯作者: 王宏伟
  • 作者简介:王宏伟(1973-),男,西安电子科技大学博士研究生,E-mail: xdwanghongwei@163.com.
  • 基金资助:


Wideband digital channelized receiver design

WANG Hong-wei1;ZHAO Guo-qing1;WANG Yu-jun1,2;BAO Dan1   

  1. (1. Research Inst. of Electronic Countermeasures, Xidian Univ., Xi'an  710071, China;
    2. Telecommunication Eng. Inst., Airforce Univ., Xi'an  710077, China)
  • Received:2009-04-10 Online:2010-06-20 Published:2010-07-23
  • Contact: WANG Hong-wei



关键词: 多相快速傅里叶变换, 信道化接收机, 参数估计


The digital receiver should possess the ability to process a large number of data in real-time for the wideband signal. A new kind of efficient digital channelized receiver is proposed in this paper which is based on polyphase filters and short-time FFT technology(polyphase fast Fourier transform). It can detect objects and measure parameters for the wideband signal in real-time. A digital receiver system with a 640MHz instantaneous bandwidth is built based on the structure proposed using FPGA and DSP devices. It has high accuracy of time-frequency parameter measurement and low data output ratio, which shows the structure is feasible.

Key words: polyphase fast Fourier transform, channelized receiver, parameter estimation