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Evolutionary Spectral Analyses of a Powerful Typhoon at the Sutong Bridge Site Based on the HHT
2016
Mathematical Problems in Engineering
To investigate the nonstationary characteristics of strong typhoons, this paper considers the evolutionary spectral characteristics of strong typhoons based on the Hilbert-Huang transform (HHT). Discrete expressions are determined for the evolutionary spectral analysis based on the HHT. The study indicates that the classic empirical mode decomposition (EMD) method fails to extract all of the high-frequency fluctuations from wind velocity data, and the time-averaged power spectrum obtained
doi:10.1155/2016/4143715
fatcat:azc3t63r5fgalmcd673tdg22ja