An analytical model for the representation of strong ground motions is proposed for the August 30, 1986 Vrancea earthquake. The earthquake simulation model is represented by a short-duration, long-period pulse-like function based on the Gabor wavelet, and a long-duration stochastic record that has a frequency content higher than that of the long-period pulse. The simple physical meaning of the input parameters of the model adequately represents the impulsive character of the records, and successful simulation of the entire data set proves the potential of the method for use in ground-motion simulation. The modified Gabor wavelet is capable of capturing the time-history and response spectra characteristics of the coherent component of the records. The incoherent component of ground motion is simulated with the stochastic approach, providing good compatibility of the resulting linear response spectra.
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Zaicenco, A., Gavin, H.P., Dickinson, B.W. (2008). A Parametric Model Combining Gabor Wavelet And Stochastic Component For The August 30, 1986 Vrancea Earthquake. In: Zaicenco, A., Craifaleanu, I., Paskaleva, I. (eds) Harmonization of Seismic Hazard in Vrancea Zone. NATO Science for Peace and Security Series C: Environmental Security. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9242-8_4
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