电子学报 ›› 2019, Vol. 47 ›› Issue (6): 1272-1276.DOI: 10.3969/j.issn.0372-2112.2019.06.013

• 学术论文 • 上一篇    下一篇

一种超长点数脉压的实现方法

方志红   

  1. 中国电子科技集团公司第38研究所孔径阵列与空间探测安徽省重点实验室, 安徽合肥 230031
  • 收稿日期:2017-11-14 修回日期:2019-03-10 出版日期:2019-06-25 发布日期:2019-06-25
  • 作者简介:方志红 男,1973年出生,安徽宿松人,研究员级高工,研究方向为雷达信号处理.E-mail:www_sar@126.com
  • 基金资助:
    科技部国际合作专项(No.2015DFA10270)

An Implementation of Ultra-long Points Pulse Compress

FANG Zhi-hong   

  1. Key Lab of Aperture Array and Space Application, the 38 th Research Institute of CETC, Hefei, Anhui 230031, China
  • Received:2017-11-14 Revised:2019-03-10 Online:2019-06-25 Published:2019-06-25

摘要: 脉压被广泛用于雷达系统以提高系统分辨率.随着宽带雷达的不断发展,雷达脉压点数也在不断增长.本文介绍了一种基于二维分解超长点数FFT算法的超长点数频域脉压实现方法.在TMS320C6678评估板上的试验结果表明,新方法较传统方法效率提升超过20%,单片主频1GHz的C6678完成128K点脉压仅需约0.81ms.

关键词: 脉冲压缩, 超长点数FFT, 二维FFT, TMS320C6678

Abstract: As a wide spread technology in radar systems,pulse compression is used to improve the radar resolution.With the development of wide band radar systems,the points of pulse compression become larger and larger.A method of fast implementation of ultra-long points pulse compression in frequency domain based on 2-D FFT algorithm is proposed.TMS320C6678 EVM board is used to test the new method.The experiment result shows that the efficiency of the proposed method is improved by more than 20% compared with the traditional methods.128K points pulse compression can be finished in about 0.81ms by only one 1GHz TMS320C6678 chip.

Key words: pulse compression, ultra long FFT, 2D FFT, TMS320C6678

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