Innovative techniques for the improvement of industrial noise sources identification by beamforming-Reference-Cited by-同舟云学术

Innovative techniques for the improvement of industrial noise sources identification by beamforming

Published:2021-01-01 Issue:1 Volume:8 Page:129-137
ISSN:2084-879X
Container-title:Noise Mapping
language:en
Short-container-title:

Author:

Baldinelli Giorgio¹,Bianchi Francesco²,Costarelli Danilo³,D’Alessandro Francesco⁴,Scrucca Flavio⁵,Seracini Marco³,Vinti Gianluca³

Affiliation:

1. Department of Engineering , University of Perugia , Via Duranti, 67 – 06125 Perugia – Italy ; Tel.: +39 075 585 3868; Fax: +39 075 585 3697

2. Department of Physics and Geology , University of Perugia , Via Pascoli – 06123 Perugia – Italy

3. Department of Mathematics and Computer Science , University of Perugia ; Via Vanvitelli, 1 – 06123 Perugia , Italy

4. Italian National Research Council – Institute on Atmospheric Pollution at Italian Ministry of Environment, Land and Sea , Via Cristoforo Colombo, 44 – I, 00147 , Rome , Italy

5. Department of Sustainability – Circular Economy Section , ENEA – Italian National Agency for New Technologies, Energy and Sustainable Economic Development ; Lungotevere Thaon di Revel, 76 – 00196 , Rome , Italy

Abstract

Abstract An innovative technique based on beamforming is implemented, at the aim of detecting the distances from the observer and the relative positions among the noise sources themselves in multisource noise scenarios. By means of preliminary activities to assess the optical camera focal length and stereoscopic measurements followed by image processing, the geometric information in the source-microphone direction is retrieved, a parameter generally missed in classic beamforming applications. A corollary of the method consists of the possibility of obtaining also the distance among different noise sources which could be present in a multisource environment. A loss of precision is found when the effect of the high acoustic reflectivity ground interferes with the noise source.

Publisher

Walter de Gruyter GmbH

Subject

Management, Monitoring, Policy and Law,Urban Studies,Acoustics and Ultrasonics

Link

https://www.degruyter.com/document/doi/10.1515/noise-2021-0010/pdf

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