基于FPGA的FFT处理器的研究与设计

Research and design of FFT processor based on FPGA

本文利用频域抽取基四算法,运用灵活的硬件描述语言-VerilogHDL作为设计主体,设计并实现一套集成于FPGA内部的FFT处理器。FFT处理器的硬件试验结果表明该处理器的运算结果正确,并且具有较高运算速度。该方法具有设计简单灵活,体积小等优点,可用于雷达处理、高速图像处理和数字通信等应用场合。

The paper firstly use the arithmetic of FFT processor-Radix-4,design and realize a FFT processor ,which is integrated in FPGA chip, regarding Verilog HDL as design way. The result of hardware test of FTT processor shows that the processor works well and has high speed. The design has the advantages of simple ness, agility and small bulk, etc. It can be used in many application situations, such as radar signals process, high speed image process and digital communication etc.