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Optimization of the Equivalent Source Configuration for the Equivalent Source Method [PDF]

open access: yesJournal of Marine Science and Engineering, 2021
The equivalent source method is widely applied to study structural acoustic radiation in an underwater environment. However, there is still uncertainty in arranging the equivalent source, and the current mainstream configuration method needs a large ...
Lanyue Zhang   +4 more
doaj   +4 more sources

Sparse Reconstruction of Sound Field Using Bayesian Compressive Sensing and Equivalent Source Method [PDF]

open access: yesSensors, 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
doaj   +4 more sources

A Sound Source Identification Algorithm Based on Bayesian Compressive Sensing and Equivalent Source Method [PDF]

open access: yesSensors, 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
doaj   +6 more sources

A study on aerodynamic pass-by noise based on equivalent source method [PDF]

open access: yesScientific Reports
Pass-by noise generated by high-speed trains is an important influencing factor on the surrounding environment and is getting more and more attention with the increase of speed.
Shumin Zhang, Jiawei Shi, Haoran Wang
doaj   +4 more sources

Optimization of Equivalent Source Configuration for an Independent-Equivalent Source Method in Half-Space Sound Field [PDF]

open access: yesShock and Vibration, 2020
In the situation that vibrating objects are located above a reflecting plane, an independent-equivalent source method (I-ESM) regards the reflections due to the plane as being radiated by equivalent sources placed under the plane and then the half-space ...
Wen-Qian Jing, Huawei Wu, Jin-Quan Nie
doaj   +2 more sources

Noise Directivity Reconstruction Radiated from Unmanned Underwater Vehicle’s Propeller Using the Equivalent Source Method [PDF]

open access: yesSensors
Noise directivity reconstruction and prediction of noise levels at long ranges from such sources as unmanned underwater vehicles (UUVs) or aircraft are important practical problems.
Shuai Jiang   +3 more
doaj   +2 more sources

A Compressed Equivalent Source Method Based on Equivalent Redundant Dictionary for Sound Field Reconstruction

open access: yesApplied 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
doaj   +3 more sources

Half-Space Sound Field Reconstruction Based on the Combination of the Helmholtz Equation Least-Squares Method and Equivalent Source Method [PDF]

open access: yesSensors
In 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
doaj   +2 more sources

A Cylindrical Equivalent Source-Based Physical Optics Method for Rapid Analysis of Airborne Radomes

open access: yesIEEE 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
doaj   +3 more sources

Integration of Residual Terrain Modelling and the Equivalent Source Layer Method in Gravity Field Synthesis for Airborne Gravity Gradiometer Test Site Determination

open access: yesRemote Sensing, 2023
To calibrate airborne gravity gradiometers currently in development in China, it is urgent to build an airborne gravity gradiometer test site. The site’s selection depends on the preknowledge of high-resolution gravity and gradient structures.
Meng Yang   +5 more
doaj   +1 more source

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