Evaluate of dynamic signal non-stationary using recurrence plot

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (12) : 39-43.

论文

Evaluate of dynamic signal non-stationary using recurrence plot

YANG Dong1,2; REN Wei-Xin1,2

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Abstract

Vibration signal extended to higher dimensional phase space by phase space reconstruction algorithm, and study the distribution and movement characteristic of neighborhood points of signals in high dimension, and proposed the methods of recurrence plot and recurrence quantification analysis used for studying noise and non-stationary of the signals. Based on principal component analysis, the evaluating feature of non-stationary is the correlation coefficient of first principal component of recurrence quantification analysis of the sample matrix. The analysis of numerical simulated signal and vibration signal of a bridge cables show that the recurrence plot based stationary evaluation method is fast and intuitive; the proposed non-stationary feature can be effectively.