PSI - Issue 64

Mohammad Shamim Miah et al. / Procedia Structural Integrity 64 (2024) 476–483 M.S. Miah and W. Lienhart / Structural Integrity Procedia 00 (2024) 000–000

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Fig. 2. Unfiltered and filtered data: (a) selected time-window, (b) zoomed view of the selected time-window [147 - 150 sec].

Fig. 3. Identified dominating frequencies via both (a) FFT, and, (b) PSD method.

timation has better statical estimation due to its inherent estimation process (e.g. signals are divided into segments). The detail info about the Welch’s method and estimation can be obtained via Hayes (1996).