“…The tools of signal processing for feature extraction are related to the Fourier transform (FT), short-time Fourier transform , Wigner-Ville distribution , wavelet transform and its variants (complex, continuous, discrete, packet, etc. ), and Hilbert-Huang transform (Babajanian Bisheh et al, 2019;Gomes et al, 2019;Jothi Saravanan et al, 2017;Kunwar et al, 2013;Pirboudaghi et al, 2018;Sun et al, 2020;Yang et al, 2017;Zhu et al, 2019). Li et al (2015) proposed a structural damage detection approach based on the power spectral density transmissibility (PSDT).…”