A Compressed Equivalent Source Method Based on Equivalent Redundant Dictionary for Sound Field Reconstruction [PDF]
Applied Sciences, 2019 The equivalent source method (ESM) based on compressive sensing (CS) requires that the source has a sparse or approximately sparse representation in a suitable basis or dictionary.
Yansong He +3 more
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Half-Space Sound Field Reconstruction Based on the Combination of the Helmholtz Equation Least-Squares Method and Equivalent Source Method [PDF]
SensorsIn practical conditions, near-field acoustic holography (NAH) requires the measurement environment to be a free sound field. If vibrating objects are located above the reflective ground, the sound field becomes non-free in the presence of a reflecting ...
Laixu Jiang +4 more
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Equivalent Source Method for Calculation of Periodic Commutation Electric Circuits [PDF]
Elektronika ir Elektrotechnika, 2011 In this paper the equivalent sources method which is intended to calculate the periodically switched electric circuits using harmonic analysis method is described. It is not possible to apply 'the harmonic analysis method to analyze such circuits, since the circuit configuration varies over time.
Bugenis, S.J. +3 more
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A Cylindrical Equivalent Source-Based Physical Optics Method for Rapid Analysis of Airborne Radomes
IEEE Access, 2022 The physical optics (PO) method treats the outer surface of airborne radomes in front of antennas as a secondary source region when analyzing the electromagnetic performance.
Xianjun Sheng +3 more
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High-resolution acoustic imaging method based on equivalent source method and reweighted minimization [PDF]
Measurement + ControlSparse regularization has been successfully applied to equivalent source method (ESM) in order to improve the acoustic imaging resolution. However, the application is not always feasible, especially at low frequencies. To overcome the problem, this paper
Yuan Liu +4 more
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A Phaseless Source Reconstruction Method Based on Adam Optimization Algorithm Combined with Regularization [PDF]
SensorsIn the solution of equivalent dipoles for inverse electromagnetic problems, the traditional least squares method suffers from ill-conditioned matrices, resulting in insufficient accuracy and anti-noise performance, while existing optimization algorithms ...
Zhangqiang Ma +4 more
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Variational Bayesian Compressive Sensing with Equivalent Source Modeling for Sound Field Reconstruction [PDF]
SensorsWhile conventional Bayesian compressive sensing exploits signal sparsity for accurate sound field reconstruction from under-sampled measurements, its practicality is limited by high computational complexity and slow convergence.
Yue Xiao +3 more
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Review: The Use of Equivalent Source Method in Computational Acoustics [PDF]
Journal of Computational Acoustics, 2017 This paper reviews the equivalent source method (ESM), an attractive alternative to the standard boundary element method (BEM). The ESM has been developed under different names: method of fundamental solutions, wave superposition method, equivalent source method, etc. However, regardless of the method name, the basic concept is very similar; that is to
Seongkyu Lee
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Data-adaptive pattern-coupled Bayesian compressive sensing for sparse sound field reconstruction [PDF]
Scientific ReportsPattern-coupled Bayesian compressive sensing shows great potential in sound field reconstruction by leveraging structural sparsity, but its fixed coupling patterns for sparsity hyperparameters limit adaptability to non-uniform correlation distributions ...
Yue Xiao +4 more
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A Forward−Backward Splitting Equivalent Source Method Based on S−Difference [PDF]
Applied SciencesThe regularization method has a direct impact on the accuracy of the reconstructed sound field in the process of inverse calculation of near−field acoustic holography using the equivalent source method.
Jin Mao +3 more
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