アコースティック counter-UAS sensors are passive and use high-sensitivity microphone arrays coupled with audio analysis applications to 見つける, トラック そして 特定する sounds produced by UAV motors and propellers. The spinning of different types of UAV propellers produce unique アコースティック patterns, which makes it possible to create a library of these アコースティック signatures to 特定する different types of UAV and determine the general direction of the sound source.

The approximate 場所 of a UAV can be determined using triangulation methods with multiple spatially separated microphone stations. By analyzing the Doppler-induced frequency shift of the source signal over a period of time, some C-UAS may be able to report the approximate speed and direction of the sound source. High levels of sound pollution, like those in urban environments, can degrade the performance of C-UAS that rely on アコースティック センサーだ。. アコースティック sensors are ideally employed to “quiet” remote locations such as rural prisons or for border protection applications.

参考 DHS対UAS技術ガイド