Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (14): 102-105.

• 产品、研发、测试 • Previous Articles     Next Articles

FFT Design and Implement Based on Late-model FPGA


  • Received:2006-05-26 Revised:1900-01-01 Online:2007-05-10 Published:2007-05-10


李岩 徐金甫   

  1. 解放军信息工程大学电子技术学院304教研室 解放军信息工程大学电子技术学院
  • 通讯作者: 李岩

Abstract: In the design of FFT based on FPGA, in order to increase FFT processing speed, this paper bring forward a new method that use shift-register to store twiddle-factors, and validated on Stratix series FPGA of Altera company. Experimentation result indicates that this method can improve FFT processing speed of FFT observably than the method of store twiddle-factors with ROM generally, and can satisfy FFT real-time processing request better.

摘要: 在基于FPGA的FFT设计中,为了提高速度,本文提出了用移位寄存器存储旋转因子的方法,并且在Altera公司的Stratix系列的FPGA上做了验证。实验结果表明,该方法和普遍采用ROM做旋转因子存储器的方法相比,大幅提高了FFF的处理速度,能够更好地满足了FFT实时处理的要求。