Multiscale Time Series Decomposition for Structural Dynamic Properties: Long-Term Trend and Ambient Interference

<div>Long-term trend of modal frequency: (a) first-order symmetric torsional mode; (b) fourth-order symmetric torsional mode.</div>

Structural Control and Health Monitoring

Figure 13: Multiscale Time Series Decomposition for Structural Dynamic Properties: Long-Term Trend and Ambient Interference 