Protection that moves with the principal
Fixed-site counter-drone installations protect a location. A protection detail protects a person, and that person is usually in a vehicle. This system is built for executive protection vehicles, official convoys, arrival and departure zones, temporary secure areas and mobile command operations — and it keeps detecting, prioritising and recording whether the vehicle is stationary or driving.
Acoustics lead, everything else verifies
The acoustic subsystem is the primary detector, and it is passive: it transmits nothing, so an adversary never learns they have been spotted. Radar and optics are cued by it rather than scanning independently. Radar examines the sector the acoustics indicated and contributes range, radial velocity and time-to-arrival. The optical units slew to the same bearing, scan the uncertainty cone, confirm the target and hold it in view.
The operator does not see three systems arguing. Every observation is associated with one persistent target identity and one combined confidence score.
Why a moving platform is the hard version
Three problems arrive together. The vehicle generates the noise that masks the signal. The vehicle’s heading changes, so a bearing means nothing without a reference frame. And an autonomous drone offers no RF link to detect or jam. The answer to the first two is synchronised arrays plus GNSS and IMU fusion that converts every bearing into geographic truth. The answer to the third is not relying on RF at all.
One operating principle
A threat event exists only once the acoustic engine has produced a valid bearing with acceptable confidence and signal quality. That acoustic timestamp becomes the event reference, the acoustic bearing defines the first search sector, and repeated detections maintain track continuity. Every event preserves its own evidence trail.
