Autocorrelation Analysis in Time and Frequency Domains for Passive Structural Diagnostics

<table>Period estimation results of fundamental modal frequency: condition 1 (a), condition 2 (b), condition 3 (c), and condition 4 (d). Period histogram of maximum peak collection frame by frame: condition 1 (e), condition 2 (f), condition 3 (g), and condition 4 (h).</table>

Advances in Acoustics and Vibration

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Figure 6

Figure 6: Autocorrelation Analysis in Time and Frequency Domains for Passive Structural Diagnostics 