The Second-Order Synchrosqueezing Continuous Wavelet Transform and Its Application in the High-Speed-Train Induced Seismic Signal
IEEE Geoscience and Remote Sensing Letters（2021）
Abstract
Thousands of high-speed trains (HSTs) run on over 30000-km high-speed railway every day in China. These running trains not only cause vibrations but also stimulate all kinds of seismic waves. The receiver seismic signal’s spectrum has one special equal-interval, multinarrowband feature. Some commonly used time-frequency (TF) analyzing methods, such as the short-time Fourier transform, continuous w...
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Key words
Continuous wavelet transforms,Feature extraction,Vibrations,Time-frequency analysis,Wavelet analysis
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