Drive-by large-scale tomographic mapping of environmental noise sources

Cagdas Tuna, Shengkui Zhao, Thi Ngoc Tho Nguyen, Douglas L. Jones

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In recent years, environmental noise has become a major concern in large urban areas, significantly reducing the quality of life and health. The measurement, localization and monitoring of various environmental noise sources are the key elements of success in tackling the urban noise problem. However, the deployment of fixed microphones at a dense grid of locations becomes prohibitively expensive for city-wide sound pressure level (SPL) measurements over long periods of time. Instead, we propose a novel low-cost large-scale environmental noise mapping approach based on vehicles with rooftop-mounted microphone arrays driving around the city. As the vehicle drives past, the locations and SPLs of sparsely-distributed localized noise-sources in the acoustic field are determined via tomographic noise-maps, in which the delay-and-sum beamforming power outputs of the acoustic data collected at multiple locations and different times are considered as tomographic measurements. The drive-by acoustic noise-source maps produced from the preliminary experiments with two circular arrays mounted on an electric vehicle demonstrate the promise of this new approach for city-scale environmental noise monitoring to identify the regular environmental noise patterns cost-effectively.

Original languageEnglish (US)
Title of host publicationICSV 2016 - 23rd International Congress on Sound and Vibration
Subtitle of host publicationFrom Ancient to Modern Acoustics
PublisherInternational Institute of Acoustics and Vibrations
ISBN (Electronic)9789609922623
StatePublished - Jan 1 2016
Event23rd International Congress on Sound and Vibration, ICSV 2016 - Athens, Greece
Duration: Jul 10 2016Jul 14 2016

Publication series

NameICSV 2016 - 23rd International Congress on Sound and Vibration: From Ancient to Modern Acoustics

Other

Other23rd International Congress on Sound and Vibration, ICSV 2016
CountryGreece
CityAthens
Period7/10/167/14/16

ASJC Scopus subject areas

  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality
  • Acoustics and Ultrasonics

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