Location finding function of high correlation sound sources, using combined methods of spatial smoothing processing and music - Development of handy microphone array system for high efficiency location finding

Michio Uneda, Hiroaki Kondo, Ken Ichi Ishikawa, Osamu Ohnishi, Syuhei Kurokawa, Toshiro Doi

Research output: Contribution to journalArticle

Abstract

It is extremely necessary to estimate the spatial locations of sound sources under various vibrations and noise phenomena. With this background, techniques for estimating the locations of sound sources as non-contact testing are widely used for understanding various vibrations and noise problems intuitively. In this study, our goal is to estimate locations of high correlation sound sources with high accuracy by combined SSP and MUSIC methods, based on the leading edge technology of radar signal processing. Considering this objective, the handy microphone array system for evaluating the performance of the combined SSP and MUSIC methods was developed experimentally. This paper presents details of the performance of the combined SSP and MUSIC methods as well as the analysis method of the measured and experimental results of the performance tests for estimating the locations of high correlation sound sources. As a result, it is possible to find the sound source locations with high sensitivity applying the combined SSP and MUSIC methods through a series of experimental and computational examinations.

Original languageEnglish
Pages (from-to)1158-1164
Number of pages7
JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Volume77
Issue number12
DOIs
Publication statusPublished - Dec 2011

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Microphones
Acoustic waves
Processing
Acoustic noise
Vibrations (mechanical)
Testing

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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title = "Location finding function of high correlation sound sources, using combined methods of spatial smoothing processing and music - Development of handy microphone array system for high efficiency location finding",
abstract = "It is extremely necessary to estimate the spatial locations of sound sources under various vibrations and noise phenomena. With this background, techniques for estimating the locations of sound sources as non-contact testing are widely used for understanding various vibrations and noise problems intuitively. In this study, our goal is to estimate locations of high correlation sound sources with high accuracy by combined SSP and MUSIC methods, based on the leading edge technology of radar signal processing. Considering this objective, the handy microphone array system for evaluating the performance of the combined SSP and MUSIC methods was developed experimentally. This paper presents details of the performance of the combined SSP and MUSIC methods as well as the analysis method of the measured and experimental results of the performance tests for estimating the locations of high correlation sound sources. As a result, it is possible to find the sound source locations with high sensitivity applying the combined SSP and MUSIC methods through a series of experimental and computational examinations.",
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AU - Kondo, Hiroaki

AU - Ishikawa, Ken Ichi

AU - Ohnishi, Osamu

AU - Kurokawa, Syuhei

AU - Doi, Toshiro

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