Signal reconstruction of surface waves on SASW measurement using Gaussian Derivative wavelet transform

Sri Atmaja P Rosyidi, Mohd. Raihan Taha, Zamri Chik, Amiruddin Ismail

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Surface wave method consists of measurement and processing of the dispersive Rayleigh waves recorded from two or more vertical transducers. The dispersive phase data are inverted and the shear wave velocity versus depth is obtained. However, in case of residual soil, the reliable phase spectrum curve is difficult to be produced. Noises from nature and other human-made sources disturb the generated surface wave data. In this paper, a continuous wavelet transform based on mother wavelet of Gaussian Derivative was used to analyze seismic waves in different frequency and time. Time-frequency wavelet spectrum was employed to localize the interested seismic response spectrum of generated surface waves. It can also distinguish the fundamental mode of the surface wave from the higher modes of reflected body waves. The results presented in this paper showed that the wavelet analysis is able to determine reliable surface wave spectrum of sandy clayey residual soil.

Original languageEnglish
Pages (from-to)616-635
Number of pages20
JournalActa Geophysica
Volume57
Issue number3
DOIs
Publication statusPublished - 2009

Fingerprint

wavelet analysis
surface wave
wavelet
surface waves
transform
residual soil
soils
wave spectrum
body wave
Rayleigh waves
seismic waves
Rayleigh wave
transducer
seismic response
seismic wave
sandy soil
S waves
wave velocity
S-wave
transducers

Keywords

  • Continuous wavelet transform (CWT)
  • Gaussian Derivative wavelets
  • Signal reconstruction
  • Surface waves

ASJC Scopus subject areas

  • Geophysics

Cite this

Signal reconstruction of surface waves on SASW measurement using Gaussian Derivative wavelet transform. / Rosyidi, Sri Atmaja P; Taha, Mohd. Raihan; Chik, Zamri; Ismail, Amiruddin.

In: Acta Geophysica, Vol. 57, No. 3, 2009, p. 616-635.

Research output: Contribution to journalArticle

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