Simulation of near-ground signals from a flying source on UAV over a building structure

Acoustic signals near the ground generated by a moving source on a fly-by UAV are simulated around a house. The simulation is carried out using a time-domain acoustics solver that can simulate acoustic propagations with the specified moving source, ground properties, and building geometries. The sou...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2022-04, Vol.151 (4), p.A36-A36
Main Authors: Hou, Jiacheng, Zheng, Zhongquan Charlie
Format: Article
Language:English
Online Access:Get full text
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Summary:Acoustic signals near the ground generated by a moving source on a fly-by UAV are simulated around a house. The simulation is carried out using a time-domain acoustics solver that can simulate acoustic propagations with the specified moving source, ground properties, and building geometries. The source on a UAV is approximated by a broadband source moving at a constant speed. The long-range three-dimensional computation is developed with a ground as a rigid or porous medium and a residential house with realistic geometries. Time histories and histograms of the near-ground sensors at different locations around the house are analyzed with their different behaviors due to Doppler shift, ground effect, and acoustic interference from the house structures. Comparisons will be made with literature results and available measured data.
ISSN:0001-4966
1520-8524
DOI:10.1121/10.0010577