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2012•Southern MetalsRequires access

Applications of add Blackman window function in FFT

Ouyang Ming-xing

Open publisher page 1 citations

Abstract

The calculation of abruptly truncated FFT in an infinite sequence is frequently associated with spectrum leakage,and the leakage can be effectively inhibited using a slow-changing window interception.Different window functions have different characters,therefore it is possible to analyze the transformation features of a single FTT signal in different windows functions and with different points interceptions,using a Matlab simulation analysis.The method was applied to the power harmonic analysis with an add Blackman windows function.

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What this paper is about

The calculation of abruptly truncated FFT in an infinite sequence is frequently associated with spectrum leakage,and the leakage can be effectively inhibited using a slow-changing window interception.Different window functions have different characters,therefore it is possible to analyze the transformation features of a single FTT signal in different windows functions and with different points interceptions,using a Matlab simulation analysis.The method was applied to the power harmonic analysis with an add Blackman windows function.

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Available abstract

The calculation of abruptly truncated FFT in an infinite sequence is frequently associated with spectrum leakage,and the leakage can be effectively inhibited using a slow-changing window interception.Different window functions have different characters,therefore it is possible to analyze the transformation features of a single FTT signal in different windows functions and with different points interceptions,using a Matlab simulation analysis.The method was applied to the power harmonic analysis with an add Blackman windows function.

Key concepts: Window function, Fast Fourier transform, MATLAB, Leakage (economics), Window (computing), Computer science, Spectral leakage, Algorithm

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