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

IF 1.7 Q2 ACOUSTICS

Noise Mapping Pub Date : 2021-01-01 DOI:10.1515/noise-2021-0010

G. Baldinelli, F. Bianchi, D. Costarelli, F. D’Alessandro, Flavio Scrucca, Marco Seracini, G. Vinti

引用次数: 2

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.

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改进波束形成工业噪声源识别的创新技术

摘要提出了一种基于波束形成的多源噪声环境下噪声源与观测者之间的距离和噪声源之间的相对位置检测方法。通过初步评估光学相机焦距和立体测量，然后进行图像处理，检索了源-传声器方向的几何信息，这是经典波束形成应用中通常忽略的参数。该方法的一个推论是还可以获得在多声源环境中可能存在的不同噪声源之间的距离。当高声反射率地面干扰噪声源时，会造成精度损失。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Noise Mapping ACOUSTICS-

CiteScore

7.80

自引率

17.90%

发文量

审稿时长

12 weeks

期刊介绍： Ever since its inception, Noise Mapping has been offering fast and comprehensive peer-review, while featuring prominent researchers among its Advisory Board. As a result, the journal is set to acquire a growing reputation as the main publication in the field of noise mapping, thus leading to a significant Impact Factor. The journal aims to promote and disseminate knowledge on noise mapping through the publication of high quality peer-reviewed papers focusing on the following aspects: noise mapping and noise action plans: case studies; models and algorithms for source characterization and outdoor sound propagation: proposals, applications, comparisons, round robin tests; local, national and international policies and good practices for noise mapping, planning, management and control; evaluation of noise mitigation actions; evaluation of environmental noise exposure; actions and communications to increase public awareness of environmental noise issues; outdoor soundscape studies and mapping; classification, evaluation and preservation of quiet areas.