Cross-correlation function combined with wavelet transform for acoustic holography scanning measurement

Gee Pinn James Too, Bo Hsien Wu

Research output: Contribution to journalArticle

Abstract

The Similar Source Method (SSM) has been developed to describe interior and exterior sound fields. In this study, a new method for revising phase in the scanning measurement of acoustical holography is developed by using wavelet transform to filter out the noise first. Then, a cross-correlation function is used to calculate the delay time of signals for each signal. Furthermore, the delay time is used to revise the phase of the signal. Finally, a modified version of the SSM is developed to describe the sound pressure distribution in a planar surface. Simulation is shown to verify this approach in this study.

Original languageEnglish
Pages (from-to)91-99
Number of pages9
JournalInternational Journal of Computer Applications in Technology
Volume36
Issue number2
DOIs
Publication statusPublished - 2009 Aug

All Science Journal Classification (ASJC) codes

  • Software
  • Information Systems
  • Computer Science Applications
  • Computer Networks and Communications
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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