New method to locate multiple sound sources in one-dimensional space based on estimation of each source sound

H. Kanai, K. Kido

Research output: Contribution to journalConference article

Abstract

Several methods have been used to locate multiple sound sources on a line such as a tube or a pipe by using many sensor outputs. It is difficult, however, to locate sound sources accurately when the source sounds are correlated with each other and/or when the signal-to-noise ratio is low. By using the least mean square criterion, it is necessary to solve the under-determined normal equation to estimate the sound power and the waveform radiating from each assumed sound source. Therefore, we propose a new method to solve the equation by applying a tapering window to the singular-value-decomposition technique. These principles are confirmed experimentally. The proposed method is applicable to the diagnosis of piping by estimating the positions of holes from which streams of liquid or a gas are leaking.

Original languageEnglish
Pages (from-to)227-232
Number of pages6
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume177
Publication statusPublished - 1989 Dec 1
EventSeismic Engineering - 1989: Design, Analysis, Testing, and Qualification Methods - Honolulu, HI, USA
Duration: 1989 Jul 231989 Jul 27

ASJC Scopus subject areas

  • Mechanical Engineering

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