2011
DOI: 10.25100/iyc.v9i2.2484
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Comparación de tres transformadas para distribuciones tiempo-frecuencia por medio de su aplicación a registros de vibraciones ambientales

Abstract: Los estudios de vibraciones ambientales han demostrado ser eficaces para la identificación del comportamiento dinámico de edificaciones. Tradicionalmente, la transformada rápida de Fourier se ha usado para estimar el espectrograma, y así hallar la distribución tiempo-frecuencia de la señal, pero nuevas herramientas han demostrado ventajas ante este método. En este trabajo, se comparan el espectrograma ( basado en la transformada rápida de Fourier), la transformada de Choi-Williams y la distribución de … Show more

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“…This technique enables tracking the frequency content of civil structures over time windows to retrieve the external frequencies (as operational, ambient, and noisy frequencies) from the original dynamic system response. Spectrogram methods commonly are based on discrete Fourier transform (DFT), computed through [24]:…”
Section: Dynamic Characterization and Processing Techniquesmentioning
confidence: 99%
“…This technique enables tracking the frequency content of civil structures over time windows to retrieve the external frequencies (as operational, ambient, and noisy frequencies) from the original dynamic system response. Spectrogram methods commonly are based on discrete Fourier transform (DFT), computed through [24]:…”
Section: Dynamic Characterization and Processing Techniquesmentioning
confidence: 99%