More than before Christmas, sightings of drones near Gatwick Airport forced governments to divert or cancel more than 1000 flights.
Just who was hasn’t been decided, nor why, but it revealed just how easy it could be for plain idiots or terrorists, criminals to cause disruption with modest effort.
Islamic State terrorists in Iraq and Syria equipped a few with explosive payloads with strategic impact and deployed drones for battlefield surveillance.
Around the planet thought has gone into technology which involves jamming rsquo & the device radio signals, making it return to point of origin or fall from the skies. Hard kill approaches trained birds of prey and comprise gunfire, missiles, nets drones.
Israeli defence company Rafael is near fielding a high-powered laser as part of its Drone Dome system that is counter-drone that’s on display at Avalon. It is in support in Israel and also a system, minus the laser, was marketed into the UK Ministry of Defence.
Meir (first name just for safety reasons), the director of advertising to Rafael’s short range air defence directorate, said what happened at Gatwick demonstrated the capability of drones to shut down an airport.
“Even if it was a mistake, I am sure the next time it will be done with the intention of stopping an airport. I believe that terror organisations have heard what happened at Gatwick and they heard, too, what they could do the next time,” he explained.
Meir stated Drone Dome was predicated on a string of four layers — then and positioning of the drone, followed by identification and detection a decision on which actions to take.
“We will need to choose what to do with this drone. We could neutralise it . The fourth layer, especially such as drones that are autonomous, is your laser capability,” he explained.
Before the drone leaves the ground, detection is possible because of radio signals between the drone and its own operator.
It & rsquo s radar which provides outside 360-degree coverage to more than three kilometres When the drone is airborne.
Since the telemetry of commonly available drones is in known frequency bands using standard protocols, it’s possible to identify just what type of drone has been out there from its own digital signature.
The radar slaves Drone Dome’s camera to make a positive identification through the day or night. That discriminates between drones and other radar returns such as birdlife and can ascertain if the device is a quadrotor or wing.
&ldquo these procedures are done automatically. Today we need to choose as operator what to do with this drone. We could jam using a directional antenna,” he explained.
Earlier identification of this kind means it’s potential to jam across the entire spectrum, rather than in its frequency band that is applicable. Jammed in this way, most drones will return to point of origin allowing the operator.
Jamming of the GPS signal means the drone will land.
“The exceptional capability of Rafael is your laser. From 2.5 kilometres I will burn off the drone in under seven minutes. We want some sort of hard kill since sovereign drones don’t predominate,” he explained.
This capability is in the last stage of development and is set to be deployed in Israel by end year.
Meir stated Drone Dome could shield a fixed position such as any sensitive asset, a power station or an airport, or it could go with deployed forces.