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The basic algorithm of the S transform is derived and the definitions of the time variable amplitude spectrum and the time variable energy spectrum which reflect the time-frequency characteristics of the earthquake record are given. The time-frequency characteristic of the EL-centro earthquake record is analyzed. The new conception of the time-frequency characteristic spectrum record is presented,...
S transform is one of the effective modern time-frequency analysis techniques. A new method of applying S transform to simulate artificial near-fault ground motions is presented. The artificial near-fault ground motions are simulated by combining filtered real or artificial far-fault ground motions by time–frequency filter with equivalent pulse, which can reflect the local characteristics of site...
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