Design of FFT Processor Based on CORDIC Algorithm
LI Fang-junb · Jisuanji gongcheng · 2011
A Matlab function model is built through using CORDIC algorithm and butterfly operation without multiplier.By choosing reasonable iterative series and the operation data bit width,a novel Fast Fourier Transform(FFT) processor with high Signal Noise Ratio(SNR) is designed.In the Matlab simulation,the SNR can reach 88 dB.After adding the overflow protection,the SNR realized by hardware can reach 80 dB,and the power consumption can be reduced by 20.63%.The designed FFT processor has many advantages such as smaller chip area,high accuracy,lower power consumption and high SNR.