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In-flight directivity and sound power measurement of small-scale unmanned aerial systems
The sound emission characteristics of unmanned aerial systems are of interest in many contexts. For a realistic representation of the directional characteristics and the radiated sound energy, it is useful if the aircraft is operated under realistic conditions. However, deriving emission-based acoustic quantities for a typical mode of operation such as cruise flight is difficult.<br>In this paper, the directivity and sound power of a quadcopter drone are determined using a microphone arraydoi:10.36227/techrxiv.19469825 fatcat:s5xnzxzzhfhmhgxvfjdecmi7ka