Application of the Independent Components Analysis in the Reconstruction of Acoustic Sources in Duct Systems
| Autor: | Mohamed Taktak, Dhouha Tounsi, Raja Dhief, Ali Akrout, Mohamed Haddar |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Multidisciplinary Scattering business.industry Attenuation Acoustics A domain 02 engineering and technology Dissipation Sound power 01 natural sciences Reconstruction method Independent component analysis Computer Science::Sound 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electronic engineering 020201 artificial intelligence & image processing Duct (flow) business 010301 acoustics |
| Zdroj: | Arabian Journal for Science and Engineering. 41:4597-4606 |
| ISSN: | 2191-4281 1319-8025 |
| DOI: | 10.1007/s13369-016-2196-1 |
| Popis: | The development of new reconstruction methods of acoustic sources presents a domain of great interest seen its applications in reducing the noise, realizing the acoustic comfort and diagnosing systems. The duct systems are used in several systems such as building, ventilation and aeronautic systems. In this work, a new reconstruction technique of the acoustic sources in duct systems is presented. This technique is based on the multimodal scattering matrix that provides an estimation of the acoustic power dissipation and attenuation in the case of a point acoustic source. These energetic parameters are then injected into an identification technique based on the independent component analysis technique allowing the reconstruction of original sources. The method was applied to a cylindrical rigid-lined-rigid duct element. A comparison between the estimated and imposed acoustic pressures emitted by point sources is presented. This comparison showed that the proposed method gives good results, and the original signals are well reconstructed. |
| Databáze: | OpenAIRE |
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