On-field noise measurements and acoustic characterisation of multi-rotor small unmanned aerial systems
On-field noise measurements and acoustic characterisation of multi-rotor small unmanned aerial systems
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多旋翼小型无人机系统的现场噪声测量和声学表征
DOI：
10.1016/j.ast.2023.108537
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发表时间：
2023
影响因子：
5.6
通讯作者：
Ramos-Romero C
中科院分区：
文献类型：
--
作者：
Ramos-Romero C
The noise signature of small Unmanned Aerial Systems (sUAS) is highly influenced by specific operating and weather conditions. Accurate noise assessment of sUAS operations requires field noise measurements that capture all the complexity of sound emission and propagation during realistic flight situations. This paper presents a measurement and analysis framework for the acoustic characterisation of sUAS through the calculation of conventional noise metrics (L A m a x and L A E), frequency and directivity features. Using a multi-channel measurement approach, and back-propagating the sound from ground microphone to source, the presented framework allows the calculation of acoustic hemispheres for a selection of acoustic metrics. Important findings are that (i) the framework is robust for a variety of multi-rotor sUAS varying in size and configuration;(ii) broadband noise and tonal noise are the dominant noise sources during flyover for larger sUAS and smaller sUAS respectively;(iii) the maximum noise radiation of the sUAS tested is found in the rear arc of polar directivity; and (iv) angles of maximum radiation of amplitude modulated noise have been found for most sUAS tested at Θ angles±30∘. This work is intended to be relevant in establishing common protocols regarding sUAS acoustic certification between environmental policymakers, stakeholders, and industry.
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DOI：
10.3390/ijerph20010096
发表时间：
2022-12-21
影响因子：
--
作者：
Wunderli, Jean Marc;Meister, Jonas;Boolakee, Oliver;Heutschi, Kurt
通讯作者：
Heutschi, Kurt
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DOI：
10.1121/10.0009801
发表时间：
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期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
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通讯作者：
P. Chaitanya
振兴通用航空的飞机降噪技术及机场噪声分析
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
Sanggyu Min;Dongwook Lim;D. Mavris
通讯作者：
D. Mavris
DOI：
10.3390/ijerph18178893
发表时间：
2021-08-24
影响因子：
--
作者：
Hui CTJ;Kingan MJ;Hioka Y;Schmid G;Dodd G;Dirks KN;Edlin S;Mascarenhas S;Shim YM
通讯作者：
Shim YM
DOI：
10.4050/f-0078-2022-17435
发表时间：
2022
期刊：
Proceedings of the Vertical Flight Society 78th Annual Forum
影响因子：
--
作者：
N. Konzel;Eric Greenwood
通讯作者：
Eric Greenwood