The Research and Improvement of APFFT Algorithm

Jie Tao Diao; Jing Guo; Nan Li; Wei Yi; Sen Liu; Qiang Li; Hui Xu

doi:10.4028/www.scientific.net/AMR.532-533.1841

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 532-533The Research and Improvement of APFFT Algorithm

The Research and Improvement of APFFT Algorithm

Abstract:

Discrete Fourier Transform (DFT) is widely used in spectrum analysis. All Phase Fast Fourier Transform (APFFT) is proposed to improve FFT. It has merits such as phase invariance and small spectral leakage. But APFFT is a concrete algorithm. There are no parameters to adjust the result. The paper researches APFFT by changing the length of the overlapping data segments of APFFT. This change gives APFFT some new characteristic and some meaningful results are got.

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Periodical:

Advanced Materials Research (Volumes 532-533)

Pages:

1841-1845

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.532-533.1841

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Online since:

June 2012

Authors:

Jie Tao Diao, Jing Guo, Nan Li, Wei Yi, Sen Liu, Qiang Li, Hui Xu

Keywords:

APFFT, Barlett’s Method, FFT, Welch’s Method

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References

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