Research on Implementation of FFT Based on FPGA

摘要：

The FFT plays an important role in the modulation and demodulation of OFDM system. To meet the requirements of FFT in an OFDM system, the key techniques of the implementation of FFT based on FPGA is discussed in this paper. After the comparison among three typical butterfly units, the one with pipeline processing structure is introduced. Then a recursive structure of FFT on Radix-2 single butterfly is realized. This structure greatly reduced the amount of hardware resource, while an accepted processing speed is guaranteed.

关键词： FFT FPGA butterfly unit

作者: Fangming Liu Xiaozhong Pan

作者单位: Department of Electronic Technology Engineering College of Armed Police Force Xian, China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 152-155

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）