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2009•Modern Electronics TechniqueRequires access

Research of Intrepolated Algorithm Based on Convolution Windows

Dong Hui

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Abstract

FFT algorithm is the common algorithm in the analysis of harmonics.Because of spectral leakage and the fence effect,Windows and interpolation algorithm is necessary.Compared with available cosine window with the same main-lobe width,convolution window has the lowest spectral leakage effect in harmonic analysis of the periodic signal.When δ meeting the special condition,the very high effectiveness of interpolated algorithm based on convolution window is verified in the computational process.

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What this paper is about

FFT algorithm is the common algorithm in the analysis of harmonics.Because of spectral leakage and the fence effect,Windows and interpolation algorithm is necessary.Compared with available cosine window with the same main-lobe width,convolution window has the lowest spectral leakage effect in harmonic analysis of the periodic signal.When δ meeting the special condition,the very high effectiveness of interpolated algorithm based on convolution window is verified in the computational process.

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Available abstract

FFT algorithm is the common algorithm in the analysis of harmonics.Because of spectral leakage and the fence effect,Windows and interpolation algorithm is necessary.Compared with available cosine window with the same main-lobe width,convolution window has the lowest spectral leakage effect in harmonic analysis of the periodic signal.When δ meeting the special condition,the very high effectiveness of interpolated algorithm based on convolution window is verified in the computational process.

Key concepts: Spectral leakage, Window function, Algorithm, Fast Fourier transform, Convolution (computer science), Window (computing), Harmonics, Computer science

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