Fast Kurtogram

バージョン 1.0.0.0 (390 KB) 作成者: Jerome Antoni
The fast kurtogram decomposes the kurtosis as a function of frequency and frequency resolution
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更新 2015/5/18

ライセンスの表示

The kurtogram is a fourth-order spectral analysis tool elaborated for detecting and characterising nonstationarities
in a signal. It relies on the assertion that each type of transient is associated with an optimal
(frequency/frequency resolution) dyad (f ; Df) which maximises the kurtosis. The Fast Kurtogram computes the kurtogram over a grid that finely samples the (f ; Df) plane. Its complexity is on the order of N log N. This is the "plain vanilla" code used in paper:
J. Antoni, Fast Computation of the Kurtogram for the Detection of Transient Faults, Mechanical Systems and Signal Processing, Volume 21, Issue 1, January 2007, Pages 108-124.

引用

Jerome Antoni (2025). Fast Kurtogram (https://www.mathworks.com/matlabcentral/fileexchange/48912-fast-kurtogram), MATLAB Central File Exchange. に取得済み.

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1.0.0.0

16/05/2015: consideration of non-unitary sampling frequency Fs

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