Heliguy Detect’s AeroScope solution, created by leading drone manufacturer DJI, is one tool for drone detection.
By intercepting the current communications link between a DJI drone and its remote controller, AeroScope is able to broadcast real-time identification information including UAV serial code, make and model, UAV position, speed, latitude and ground controller location.
This allows the operator to take mitigation action against the drone threat and at the same time dispatch law enforcement/security teams to apprehend the pilot.
Radar is another method of detecting and tracking drones.
Some advanced radar systems offer 360-degree coverage, fast-tracking and fully-automatic drone classification and flight-path monitoring.
Camera / Video
Cameras are another drone-detection technique, capturing the movement of UAVs, either using appearance-based, motion-based or hybrid methods.
The system has many commercial and defence applications, for example prisons, airports and places of interest, however, there are limitations.
Motion-based methods, for instance, can have difficulties distinguishing between drones and birds, while visual detection is dependent on the line of sight.
Acoustics fill a vital gap in proximity drone detection, as strict line-of-sight to target is not needed for positive tracking.
The drone can operate in urban canyons, cluttered areas, behind obstructions and in darkness or fog, out of range for radars and optics, but still within the earshot of an acoustic sensor.
Using hundreds of interconnected microphone elements, acoustic sensor units are able to establish a bearing and elevation to the target in real time using advanced digital-signal processing.
Thermal imaging can be used to detect drones. Tests have shown that, by using a thermal camera, it is possible to detect and, with sufficient database, even identify foreign UAV.
The main heat source comes from the drone’s batteries. Some investigations have shown that the maximum range of detection is shorter than expected.