Extended FDD-WT method based on correcting the errors due to non-synchronous sensing of sensors
An approach, FDD-WT, is introduced to estimate the modal parameters of infrastructures. The effects of non-synchronous sensing of sensors are considered in new approach. An efficient and accurate time delay estimation method is selected and applied. A theoretical example (3DOF system) is presented to indicate the efficiency and accuracy. Modal properties of the Pacoima dam is re-identified and discussed.
time delay estimation pacoima dam frequency domain decomposition-wavelet transform operational modal analysis phase transform  ? 4-spectral