Feature Frequency Extraction Based on Principal Component Analysis and Its Application in Axis Orbit

<div>Extracting the time and frequency spectrums of the first three frequencies of D11 and D12 by PCA algorithm. (a) The time domain of D11. (b) The time domain of D12. (c) The frequency spectrum of D11. (d) The frequency spectrum of D12.</div>

Shock and Vibration

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Figure 18

Figure 18: Feature Frequency Extraction Based on Principal Component Analysis and Its Application in Axis Orbit 