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Journal of Vibration and Control, 2021
The conventional equivalent source method for near-field acoustic holography is an effective noise diagnosis method using microphone array. However, its performance is limited by microphone spacing, so the effect is unsatisfied when the wave number is ...
Ming Zan +5 more
semanticscholar +1 more source
The conventional equivalent source method for near-field acoustic holography is an effective noise diagnosis method using microphone array. However, its performance is limited by microphone spacing, so the effect is unsatisfied when the wave number is ...
Ming Zan +5 more
semanticscholar +1 more source
IEEE Workshop on Applications of Signal Processing to Audio and Acoustics
We propose a transfer learning framework for sound source reconstruction in Near-field Acoustic Holography (NAH), which adapts a well-trained data-driven model from one type of sound source to another using a physics-informed procedure.
Xinmeng Luan +3 more
semanticscholar +1 more source
We propose a transfer learning framework for sound source reconstruction in Near-field Acoustic Holography (NAH), which adapts a well-trained data-driven model from one type of sound source to another using a physics-informed procedure.
Xinmeng Luan +3 more
semanticscholar +1 more source
Near-field acoustical holography in an enclosed space
The Journal of the Acoustical Society of America, 1990In wind and water tunnels, the interaction of flow with rotating and nonrotating structures is a source of radiated noise. To characterize both the source and noise field radiated by sources operating in wind or water tunnels, near-field acoustical holography algorithms for the nonintrusive reconstruction of the velocity of the source and the complete ...
Charles J. Konzelman +1 more
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Regularization methods for near-field acoustical holography
The Journal of the Acoustical Society of America, 2001The reconstruction of the pressure and normal surface velocity provided by near-field acoustical holography (NAH) from pressure measurements made near a vibrating structure is a linear, ill-posed inverse problem due to the existence of strongly decaying, evanescentlike waves.
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2022 8th Annual International Conference on Network and Information Systems for Computers (ICNISC), 2022
In the implementation of near-field acoustic holography (NAH), the measured hologram data and reference signal are always contaminated by other noise sources, and NAH reconstruction accuracy is degraded.
Xing-gan Zhang, Pengpeng Xia
semanticscholar +1 more source
In the implementation of near-field acoustic holography (NAH), the measured hologram data and reference signal are always contaminated by other noise sources, and NAH reconstruction accuracy is degraded.
Xing-gan Zhang, Pengpeng Xia
semanticscholar +1 more source
Complex - Valued Physics-Informed Neural Network for Near-Field Acoustic Holography
European Signal Processing ConferenceWe present a novel approach to Near-field Acoustic Holography (NAH) with the introduction of the Complex-Valued Kirchhoff-Helmholtz Convolutional Neural Network (CV-KHCNN).
Xinmeng Luan +4 more
semanticscholar +1 more source
Visualization of Rotating Machinery Noise Based on Near Field Acoustic Holography
電腦學刊, 2022In order to solve the problem of fast identification of the noise source of rotating machinery, the time-space complex envelope model of monopole sound source is studied, and a modulation method of the complex envelope is proposed.
Xiao-Xia-Guo-Xiao-Xia Guo +5 more
semanticscholar +1 more source
Sparse-sampled Near-field Acoustic Holography Based on 3D-CNN and Dense Block
2024 7th International Conference on Information Communication and Signal Processing (ICICSP)A new method of sparse-sampled near-field acoustic holography (DB-SSNAH) is proposed to improve the accuracy of vibration velocity regression. The proposed method uses an upgraded stacked autoencoder (SAE) architecture and a CNN architecture based on ...
Zhen Cao, Lin Geng, Jiawei Wang
semanticscholar +1 more source
Near-field acoustic holography of acoustic radiation from structures
The Journal of the Acoustical Society of America, 2012There are some difficulties for conventional Near-field Acoustic Holography (NAH) to analyze acoustic radiation from a large scale structure. To solve the problem, a method for NAH of large scale structures was presented. In the method, the normal velocities or sound pressure at a few points on the surface of the structure are measured by transducers ...
Rongfu Mao, Zhimin Chen, Haichao Zhu
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Interior near-field acoustic holography based on finite elements
The Journal of the Acoustical Society of America, 2019This paper deals with the mathematical framework of near-field acoustic holography based on finite elements in application to the acoustic response of a fluid within a closed cavity to the enclosure boundary conditions. The finite element method is an effective implementation of the modal approach for arbitrary geometries and provides advantages for ...
Steffen, Ungnad, Delf, Sachau
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