J4 ›› 2010, Vol. 37 ›› Issue (3): 464-468.doi: 10.3969/j.issn.1001-2400.2010.03.014

• 研究论文 • 上一篇    下一篇

高效的宽带数字信道化接收机设计

常虹;赵国庆;牛新亮   

  1. (西安电子科技大学 电子对抗研究所,陕西 西安  710071)
  • 收稿日期:2009-11-05 出版日期:2010-06-20 发布日期:2010-07-23
  • 通讯作者: 常虹
  • 作者简介:常虹(1981-),女,西安电子科技大学博士研究生,E-mail: nuc_changhong@126.com.
  • 基金资助:

    “十一五”国家部委预研基金资助项目(9140A07020806DZ01)

Efficient wideband digital channelized receiver design

CHANG Hong;ZHAO Guo-qing;NIU Xin-liang   

  1. (Research Inst. of Electronic Countermeasures, Xidian Univ., Xi'an  710071, China)
  • Received:2009-11-05 Online:2010-06-20 Published:2010-07-23
  • Contact: CHANG Hong

摘要:

短时傅里叶变换(STFT)算法是实现数字信道化接收的一种简单而有效的方法,但其运算速度受到数字信号处理(DSP)器件性能的限制.为此,提出了一种STFT的高速实现方法.采用扩展资源多路并行流水的结构,实现了数据的低速率传输和硬件的高效利用,同时实现了对信号的实时检测和参数估计,适合高速实时处理应用.

关键词: 短时傅里叶变换, 数字信道化接收机, 并行流水结构, 参数估计

Abstract:

The short-time Fourier transform(STFT) algorithm is an easy and efficient method for digital channelized reception with limitation in the operation speed of DSP. The method based on extend resources with parallelism pipeline architecture for high speed is supposed in this paper to realize transport data at a low speed and make efficient use of hardware.Detection and estimate parameters of signal in real-time are also realized. The method is suitable for hardware implementation at a high speed.

Key words: STFT, digital channelized receiver, parallelism pipeline architecture, parameter estimation