RECONSTRUCTION STABILITY OF NEARFIELD ACOUSTIC HOLOGRAPHY |
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| Authors: | Bi Chuanxing Chen Xinzhao Zhou Rong Chen Jian |
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| Affiliation: | Institute of Sound and Vibration Research, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | The distributed source boundary point method (DSBPM) is used as the spatial transform algorithm for realizing nearfield acoustic holography (NAH),the sensitivity of the reconstructed solution to the measurement errors is analyzed,and the regularization method is proposed to stabilize the reconstruction process,control the influence of the measurement errors and get a better approximate solution.An oscillating sphere is investigated as a numerical example,the influence of the measurement errors on the reconstruction solution is demonstrated,and the feasibility and validity of the regularization method are validated. |
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| Keywords: | Acoustic holography Boundary point method Inverse problem Regularization |
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