Emits nothing
A sensor that only listens gives away no position of its own.
Sonous builds passive acoustic sensors that detect and locate small drones by sound alone.
Capability
Radar struggles with aircraft that fly small, low and slow. Radio detection needs a drone that transmits. We listen instead.
A sensor that only listens gives away no position of its own.
Autonomous and fibre-optic drones carry no radio link. They still make noise.
Sound travels around the terrain that stops a beam.
Mission
Equipment one person can carry, emplace and walk away from. Cheap enough to put everywhere it is needed.
Product
A sealed four-microphone node that listens, classifies what it hears, and reports a bearing. Where the bearings of several nodes cross is the aircraft.
Set forward of the position it protects, and left there.
Driven out past the forward line, then halted to listen.
The warning on the wrist of the person in the open.
Film
Contact
Vancouver, British Columbia, Canada