Results 1 to 10 of about 519,794 (275)

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

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, Zhongming Xu, Linsen Huang, Zhifei Zhang   +3 more
doaj   +9 more sources

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

Journal 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, Jia Wang, Desen Yang, Bo Hu, Di Wu   +4 more
doaj   +6 more sources

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

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, Lei Yuan, Junyu Wang, Wenxin Hu, Ruimin Sun   +4 more
doaj   +6 more sources

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

Shock 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   +4 more sources

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, Qinghua Wang, Yansong He, Zhifei Zhang, Shu Li, Mengran Li   +5 more
doaj   +4 more sources

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

Scientific 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

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   +6 more sources

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

Sensors
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, Liwen Tan, Ruichong Gu, Zilong Peng   +3 more
doaj   +4 more sources

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, Zhigang Chu, Yang Yang, Xu Chen   +3 more
doaj   +2 more sources

Differentiable equivalent source method: Joint optimization of equivalent source positions and strengths with implicit geometry constraints [PDF]

JASA Express Letters
The 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, Risako Tanigawa, Noboru Harada   +2 more
doaj   +2 more sources