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Título del libro: 8th Us National Conference On Earthquake Engineering 2006
Título del capítulo: Hilbert-Huang spectral analysis of seismic ground response

Autores UNAM:
SILVIA RAQUEL GARCIA BENITEZ; MIGUEL PEDRO ROMO ORGANISTA;
Autores externos:

Idioma:

Año de publicación:
2006
Palabras clave:

Data processing techniques; Hilbert; Huang transform; Mexico City; Motion characteristics; Seismic ground; Sliding Window; Time-frequency planes; Civil engineering; Data processing; Engineering geology; Mathematical transformations; Railroad tracks; Spectrum analysis; Seismology


Resumen:

In this paper the use of the energy-time-frequency representation, the Hilbert- Huang Transform HHT, for the decomposition and characterization of seismic ground response signals, is discussed. The advantage of the HHT over other representations, such as the wavelet and sliding window Fourier transform, is its sharp intensity-localization properties in the time-frequency plane. This paper first provides the fundamentals of the HHT method, and then uses them to analyze recordings of Mexico City soft-soil deposits, indicating that the HHT method is able to extract some motion characteristics useful in studies of seismology and engineering, which might not be exposed effectively and efficiently by other conventional data processing techniques.


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