Locating impulsive sound sources in microscale urban spaces
Dorian Davis, Samba Gaye, Lirane Kertesse Mandjoupa, Justin An, Wagdy H. Mahmoud, Lei Wang, Max F. Denis · The Journal of the Acoustical Society of America · 2022
In this work, techniques for localizing impulsive acoustic sources in an urban environment are presented. Of particular interest is the localization of sources in urban street canyons and enclosed urban areas. Sound propagation in an urban environment is strongly influenced by multiple reflections. In urban street canyons, multiple reflections tend to amplify with decreasing canyon width. A numerical investigation is performed to study the role multiple reflections on time difference of arrival (TDOA) and beamforming source localization techniques. Results of various urban street canyon and enclosed space geometries are investigated. The results and limitations of the TDOA and beamforming techniques for estimating source position in urban environments are discussed.