基于FPGA高精度浮点运算器的FFT设计与仿真

摘要

Based on the IEEE floating point format and the FFT algorithm,this paper puts forward a 2FFT-based method based on FPGA.It completes the FFT design for the FPGA-based high-precision floating point unit.It describes the butterfly process and address generation unit processes by using VHDL.The simulation waveform can basically shows the output results correctly%基于IEEE浮点表示格式及FFT算法,提出一种基2FFT的FPGA方法,完成了基于FPGA高精度浮点运算器的FFT的设计。利用VHDL语言描述了蝶形运算过程及地址产生单元,其仿真波形基本能正确的表示输出结果