In this work, we introduce two similarity measures based on the cross-power spectral density to select representative intrinsic mode functions (IMF) that ...
Mar 30, 2024 · In this work, we introduce two similarity measures based on the cross-power spectral density to select representative intrinsic mode functions ( ...
Spectral Correlation Measure for Selecting Intrinsic Mode Functions
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Abstract. Time series analysis implies extracting relevant features from real- world applications to improve pattern recognition tasks.
Spectral Correlation Measure for Selecting Intrinsic Mode Functions ...
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An empirical evaluation of similarity measures for time series classification · Nonlinear model for condition monitoring of non-stationary vibration signals in ...
1) The document proposes two new similarity measures based on cross-power spectral density to select representative intrinsic mode functions (IMFs) from time ...
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A stringent threshold by which relevant IMFs are distinguished from IMFs that may have been generated by numerical errors is established.
Intrinsic mode functions with the amounts of ρ CC larger than 0.5 are chosen as the optimal choices for damage localization. Source publication.
Aug 20, 2018 · The Intrinsic Mode Functions (IMFs) are obtained by the decomposition of a complicated vibration signal. EMD has mostly been studied and ...
EMD yielded six Intrinsic Mode Functions (IMFs) and one residual mode. The average period of each IMF was calculated through zero-down crossing method.
A method called center frequency statistical analysis (CFSA) is proposed in this paper to determine K value. CFSA method can obtain K value accurately based on ...