Microflown AVISAs Acoustic Vector Sensors can be used for Acoustic Target Localisation on UAV platforms. Acoustic Vector Sensors onboard the UAV, together with local data processing, can detect and localise gunshots and artillery breaks on the ground. The Microflown system can be used to cue the camera and other narrower field of view sensors to potential targets on the ground. This data can then be integrated with the video display, providing a visual reference to the UAV operator.
(Graphic: Microflown)
The system also has the capability to detect when gunshots are aggresive, i.e. aimed at the UAV itself. This allows the UAV to take evasive action and/or employ countermeasures.
Aside from the detection of ground based acoustic events, acoustic vector sensors can also be used in a mid-air anti-collision system, also known as Sense & Avoid. The acoustic vector sensors can detect and localise any flying objects approaching the UAV from any direction, so long as they emit noise. Using novel signal processing techniques, a large number of sound sources around the UAV can be simultaneously localised, and if necessary, avoiding action can be taken.
(Graphic: Microflown)
(Graphic: Microflown)
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