Results 21 to 30 of about 9,260,103 (204)
Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation [PDF]
한국해양공학회지, 2019 The directivity of an underwater sound source should be measured in an acoustically open field such as a calm sea or lake, or an anechoic water tank facility. However, technical difficulties arise when practically implementing this in open fields. Signal
Kookhyun Kim
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Near field Acoustic Holography on arbitrary shapes using Convolutional Neural Network [PDF]
European Signal Processing Conference, 2021 Near-field Acoustic Holography (NAH) is a well-known problem aimed at estimating the vibrational velocity field of a structure by means of acoustic measurements. In this paper, we propose a NAH technique based on Convolutional Neural Network (CNN).
M. Olivieri +3 more
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Zhongguo Jianchuan Yanjiu, 2023 ObjectivesLow sampling rates on reconstruction surfaces cause high reconstruction error in near-field acoustic holography. Therefore, a deep learning-based approach which is applicable to planar sound sources and high-precision reconstruction with low ...
Yuyang JI, Deyu WANG
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Application of equivalent source intensity density interpolation in near-field acoustic holography
Measurement science and technology, 2023 The spatial resolution of near-field acoustic holography based on the equivalent source method (ESM) is closely related to the number of measurement points, the higher the number of measurement points, the higher the resolution.
Huihui He +3 more
semanticscholar +1 more source
, 2008 A method of performing near- field acoustic holography comprises the following steps. Establishing (102) acoustic data representing a set of near-field acoustic holography measurements at a first set of positions.
Lopez Arteaga, Ines,, Scholte, Rick
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Sensors, 2020 The acoustic imaging (AI) technique could map the position and the strength of the sound source via the signal processing of the microphone array. Conventional methods, including far-field beamforming (BF) and near-field acoustic holography (NAH), are ...
Linsen Huang +4 more
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Sparse Reconstruction of Sound Field Using Bayesian Compressive Sensing and Equivalent Source Method
Sensors, 2023 To solve the problem of sound field reconstruction with fewer measurement points, a sound field reconstruction method based on Bayesian compressive sensing is proposed.
Yue Xiao +4 more
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Measurement science and technology, 2023 For the sound field of cylindrical or compact sources, the current sound field separation technique (FST) based on statistically optimized near-field acoustic holography (SONAH) uses planar wave for separation, and the effects of different wave functions
Wei Cheng +8 more
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Development of double nearfield acoustic holography method (Basic experimental results)
Nihon Kikai Gakkai ronbunshu, 2019 There are several types of sound localization methods. In middle frequency around 1kHz, these methods are effective to detect the sound source location.
Masao NAGAMATSU
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Sensors, 2020 Near-field acoustic holography (NAH) based on equivalent source method (ESM) is an effective method for identifying sound sources. Conventional ESM focuses on relatively low frequencies and cannot provide a satisfactory solution at high frequencies.
Ming Zan +3 more
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