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    Joint Time-Frequency Analysis of Seismic Signals: A Critical Review

    Roshan Kumar1,*, Wei Zhao1, Vikash Singh2

    Structural Durability & Health Monitoring, Vol.12, No.2, pp. 65-83, 2018, DOI:10.3970/sdhm.2018.02329

    Abstract This paper presents an evaluation of time-frequency methods for the analysis of seismic signals. Background of the present work is to describe, how the frequency content of the signal is changing in time. The theoretical basis of short time Fourier transform, Gabor transform, wavelet transform, S-transform, Wigner distribution, Wigner-Ville distribution, Pseudo Wigner-Ville distribution, Smoothed Pseudo Wigner-Ville distribution, Choi-William distribution, Born-Jordan Distribution and cone shape distribution are presented. The strengths and weaknesses of each technique are verified by applying them to a particular synthetic seismic signal and recorded real time earthquake data. More >

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