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《Journal of University of Science and Technology Beijing》 2008-10
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Improvement of the FFT algorithm in inter-harmonic detection and realization by DSP

KE Yong1),TAO Yibin2),WANG Shihua3)1) Electrical Engineering Department,Wuhu Profession and Technology College,Wuhu 241000,China 2) School of Power Electricity,South China University of Technology,Guangzhou 510640,China 3) School of Automation,South China University of Technology,Guangzhou 510640,China  
An improvement of the fast Fourier transform(FFT) algorithm was presented,which uses the fast attenuation characteristic of Fourier transform.This algorithm can effectively eliminate leakage component spectrum,realize non-rounded harmonic precision testing and overcome the shortcomings of the traditional FFT,only by a simple transformation of FFT.Because this algorithm is more similar to but simpler than the form FFT in algorithm structure,it is more suitable for storage on microprocessors which are limited-resource.A harmonic detection device based on digital signal processing(DSP) was designed to prove that the algorithm is applied to the convenience of microprocessors.
【CateGory Index】: TM744
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