Design of FFT Processor Based on FPGA

This paper analyses and discusses the structure of fast Fourier transform(FFT).Based on the operational characteristics of FFT it proposes a new implementation method of FFT in field programmable gate array(FPGA).It employs radix-2 algorithm and cell structure design.The computation cell applies the combination of pipeline and parallel architecture and the high speed is gained.The receiver block applies the structure of ping-pang RAM which expands the system throughput.It verifies the correctness of this scheme that time-series analysis result of MAX+plusⅡ is same as simulating result of Matlab.The combination of FPGA and FFT increases the handling speed of FFT processors and expands in the field of application.