基于FPGA的FFT处理器的设计与实现

Design and Realization of FFT Processor Based on FPGA

对FFT处理器的实现算法-频域抽取基4算法做了介绍。介绍一种以FPGA作为设计载体,设计和实现一套集成于FPGA内部的FFT处理器的方法和设计过程。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 introduces the arithmetic of FFT processor- Radix- 4,and introduces the method and process of design and realizes a FFT processor,which is integrated in FPGA chip, regarding FPGA as design carrier. The result of hardware test of FFT processor shows that the processor works well and has high speed. The design has the advantages of simple ness,agility and small bulk. It can be used in many application situations,such as radar signals process,high speed image process and digital communication.