Research on the Planar Near-Field Acoustic Holography for Cyclostationary Sound Field

Zhi Min Chen; Hai Chao Zhu; Rong Fu Mao

doi:10.4028/www.scientific.net/AMM.105-107.164

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Research on the Planar Near-Field Acoustic Holography for Cyclostationary Sound Field
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 105-107Research on the Planar Near-Field Acoustic...

Research on the Planar Near-Field Acoustic Holography for Cyclostationary Sound Field

Abstract:

The conventional planar near-field acoustic holography is not suitable for cyclostationary sound field radiated by the rotating machines. When the cyclic spectral density (CSD), instead of the complex sound pressure, is adopted as reconstructed physical quantity, the modulating wave and carrier wave components of the cyclostationary sound field can be extracted exactly and so the cyclostationary planar near-field acoustic holography (CPNAH) technique was proposed. Simulation and experimental results show that the modulation characteristics of the cyclostationary sound field can be extracted effectively and the sound source can be localized accurately.

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Periodical:

Applied Mechanics and Materials (Volumes 105-107)

Pages:

164-167

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.105-107.164

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Online since:

September 2011

Authors:

Zhi Min Chen, Hai Chao Zhu, Rong Fu Mao

Keywords:

Cyclic Spectral Density, Cyclostationary Sound Field, Near-Field Acoustic Holography, Sound Source Localization

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