Results 11 to 20 of about 546,551 (249)
Iteratively Reweighted Spherical Equivalent Source Method for Acoustic Source Identification [PDF]
IEEE Access, 2019 Spherical equivalent source method (S-ESM) using rigid spherical microphone arrays can simultaneously identify sound sources in all directions. In this paper, based on the reweighting and sparse representation frameworks, the sparsity-promoting ...
Guoli Ping +3 more
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Differentiable equivalent source method: Joint optimization of equivalent source positions and strengths with implicit geometry constraints [PDF]
JASA Express LettersThe equivalent source method (ESM) is widely used for sound field reconstruction due to its flexibility. However, optimizing source configurations remains challenging because ESM requires all sources to be located outside the reconstruction region ...
Kenji Ishikawa +2 more
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An Improved Algorithm for Noise Source Localization Based on Equivalent Source Method [PDF]
Shock and Vibration, 2016 Near-field acoustical holography (NAH) based on the equivalent source method (ESM) is an efficient method applied for noise source identification. As l2-norm-based regularization cannot produce a satisfactory solution of the ill-conditioned problem in ...
Zhongming Xu +5 more
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A refined wideband acoustical holography based on equivalent source method. [PDF]
Sci Rep, 2017 AbstractThis paper is concerned with acoustical engineering and mathematical physics problem for the near-field acoustical holography based on equivalent source method (ESM-based NAH). An important mathematical physics problem in ESM-based NAH is to solve the equivalent source strength, which has multiple solving algorithms, such as Tikhonov ...
Ping G, Chu Z, Xu Z, Shen L.
europepmc +4 more sources
The Source Equivalence Acceleration Method [PDF]
Annals of Nuclear Energy, 2015 Abstract Fine-group whole-core reactor analysis remains one of the long sought goals of the reactor physics community. Such a detailed analysis is typically too computationally expensive to be realized on anything except the largest of supercomputers.
Everson, Matthew S., Forget, Benoit
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Acoustic Source Characterization of Marine Propulsors
Journal of Marine Science and Engineering, 2022 Marine propulsors represent one of the most important contributors among anthropogenic sounds radiated into water. Blade based propulsors, e.g., propellers, generate tones at the blade passing frequency and its harmonics, especially in cavitating ...
Jukka Tanttari, Antti Hynninen
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A Fast Iterative Shrinkage/Thresholding Algorithm via Laplace Norm for Sound Source Identification
IEEE Access, 2020 As a powerful tool, near-field acoustical holography (NAH) recognizes the sound source effectively. The traditional equivalent source method (ESM) calculated by the Tikhonov regularization method could be available in the low-frequency band.
Linsen Huang +4 more
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Measurement + Control, 2023 In order to solve the problems of spatial resolution limit and reduce the measurement cost, the compressive sensing theory and the sparse regularization are applied to the near-field acoustic holography (NAH) technology.
Wen-Qian Jing, Guang-Sheng Liu
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An equivalent source method for modelling the global lithospheric magnetic field [PDF]
Geophysical Journal International, 2015 We present a new technique for modelling the global lithospheric magnetic field at Earth’s surface based on the estimation of equivalent potential field sources. As a demonstration we show an application to magnetic field measurements made by the CHAMP satellite during the period 2009–2010 when it was at its lowest altitude and solar activity was quiet.
Kother, Livia Kathleen +3 more
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A modeling method for equivalent source adopting volume structure technique in FDTD
AIP Advances, 2020 The equivalent source is a widely used approach for simulating hybrid electromagnetic (EM) field-circuit problems. In this approach, three techniques, e.g., the wire, surface, and volume structure, can be employed for embedding lumped circuits into ...
Zhenzhen Chen, Xing Chen
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