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- W2625922094 abstract "Based on the recurrence loss value and recurrence trend, a practicalmethod for non-stationary assessment of vibration signals is proposedadopting principal component analysis (PCA). On the basis of certainobservation time scales, the sample vectors of recurrence loss andrecurrence trend were established respectively. By the definitionof operational stationary, the two vectors were assembled into a multivariatesample matrix, and the PCA was performed on the matrix. As the assessmentobject of the non-stationarity of vibration signal, the statisticindicator was built using the first principal component. The reliabilityof the indicator was verified by assessment of several typical non-stationarysignals. At the end, this indicator was used for bridge vibrationsignal analysis, in order to make the signal processing more accurate." @default.
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- W2625922094 date "2017-06-08" @default.
- W2625922094 modified "2023-09-22" @default.
- W2625922094 title "Vibration signal non-stationary assessment using recurrence measurements principal component analysis" @default.
- W2625922094 doi "https://doi.org/10.1360/n092016-00209" @default.
- W2625922094 hasPublicationYear "2017" @default.
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