Identification of similar seismic events using a phase-only correlation technique

Research output: Contribution to journalArticle

Abstract

Identification and clustering of similar acoustic emission (AE) events are important to determine source locations precisely and to evaluate subsurface cracks. An AE cluster analysis method using phase-only correlation (POC) is proposed to identify and hierarchically classify similar AE waveforms. The POC of time-varying spectral representations is used to evaluate the similarity between two waveform images in the time–frequency domain, and cluster analysis is used to classify the waveforms into groups according to a distance measure. The method is applied to waveforms from local earthquakes in Japan to assess its ability to identify similar waveforms perturbed by white noise.

Original languageEnglish
Pages (from-to)984-987
Number of pages4
JournalConstruction and Building Materials
Volume168
DOIs
Publication statusPublished - 2018 Apr 20

Keywords

  • Phase-only correlation
  • Similar waveform
  • Time-varying spectral representation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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