2 mars 2020 | International, Aérospatial

Growing threat at high altitude: innovation to fight drones

Over the past ten years, the growing availability of Unmanned Aerial Vehicles (UAV), commonly known as drones, has been a blessing for video enthusiasts and other tech addicts. But it also created a headache for safety authorities. To respond to this flourishing market, countermeasures are being developed in parallel, and represent a full-fledged business today.

Very early after their appearance on the market, drones invited themselves on the battlefield. In 2014, the Islamic state was already using versions (Phantom 3 or 4) for reconnaissance. Then came the suicide drones, fitted with makeshift grenades.

Conventional armies are also increasingly relying on them. If the United States used to have a quasi-monopoly on offensive UAVs at the beginning of the 21st century, countries such as China, Russia, and even Iran are constantly trying to fill the gap.

In 2019, a wave of Iranian-made Qasef drones operated by the Houthi rebels took Saudi Arabia by surprise. Despite the presence of modern anti-aircraft missile systems such as the Patriot, the refineries of Abqaiq and Khurais, eastern Saudi Arabia, were heavily damaged, putting half of the country's oil production to a halt.

Even in times of peace, UAVs can constitute a threat. In January 2019, drones caused a panic at London Gatwick Airport (LGW), United Kingdom, in the days preceding Christmas. The airport was closed for three days, creating a financial loss of several millions of pounds. The following months, less successful drone incidents also disturbed traffic at Changi Airport (SIN) in Singapore and at London Heathrow (LHR). To raise awareness of this danger and the lack of readiness, Greenpeace activists intentionally crashed several drones against French nuclear plants.

A drone to rule them all

In a similar fashion to the airports that have decided to rely on falconry to prevent birdstrikes, Fortem Technologies has decided to fight fire with fire. The US-based company offers several solutions to secure sites at risk from drone threats.

A centralized system called SkyDome relies on an array of sensors, cameras and radars to monitor the surroundings and identify potential threats. The integrated artificial intelligence is capable of differentiating a bird from a drone, and to judge if the latter poses a threat or not.

Once the threat is identified, SkyDome sends the HunterDrone capable to intercept the culprit and to fish it out of the air using a projectable net.

Fortem Technologies has recently caught the interest of the U.S. Department of Defense (DoD). On February 3, 2020, the company announced it had been awarded a contract through the Defense Innovation Unit (DIU). While the price of the contract is unknown, it appears that the DoD chose to acquire the whole set of solutions. “Fortem has a number of technologies that can help protect military bases without adverse effects to local communities,” the manufacturer said.

The Israeli company Rafael also offers a centralized system, but with a different solution. Named DroneDome (in reference to the Iron Dome that defends Israel from missile threats) it relies either on a precise jammer, or on a powerful laser. It was this system that put an end to Gatwick's mayhem. It was also used in 2018 to secure the G20 Buenos Aires summit.

Man-portable solutions also exist. During the last national day in France, the military presented to the officials two anti-drone rifles (the Nerod F5 by the French-based MC2-Technologies and the DroneGun Tactical by the Australian company DroneShield). The purpose of those Star-Wars-like devices is not to destroy the enemy drones as one could expect, but to jam their signals.

When they lose contact with their control base, drones usually go back to their takeoff point or stay in stationary flight until they run out of battery. That solution avoids for dangerous debris to fall and create collateral damages, for example onto a crowd during an event.

https://www.aerotime.aero/clement.charpentreau/24617-growing-threat-at-high-altitude-innovation-to-fight-drones

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  • Augmented reality: Seeing the benefits is believing

    20 juillet 2020 | International, C4ISR

    Augmented reality: Seeing the benefits is believing

    Lt. Col. Brett Lindberg and Jan Kallberg There is always something taken away when there are added functionalities. Does the concept of wearing augmented reality that digitally provides situational awareness create an upside that outweighs what it takes away for rifleman skills? The supercharged hearing, six senses for those equipped, broader view of sight, picking up smells, changes in lights and shadows, slightest change in the near environment: With all these close-action skills, will augmented reality create more distraction than enhancement? Is it too early to push digital situational awareness all the way down to the soldier in maneuver units? Is the upside present? Naturally, all new defense technology takes time to find its place in the fight. The helicopter was invented in the 1930s, and it found a limited military role in the Korean War, not meeting the military expectation of higher impact. But 15 years later, it played a pivotal role in the war in Vietnam. New technology is not only technology — the human component to properly implement it is likely slower than the technological advancements. It is always easier to question than explain, and we understand that many thoughts and thousands of work hours have gone into designing the early augmented reality systems. However, still we find our questions worth discussing because once fielded, utilized and put into action in a conflict, it is too late to raise any concerns. This is the time to discuss. How reliable are the sensors? Can the sensors be easily spoofed? Is it too early to push it all the way down to the individual soldier? A technologically advanced adversary will likely devote research already in peacetime to develop one-time use, tossable, simple, low-cost devices that can — in close combat — create spurious sensor data and derail augmented reality. If the integrity of the sensor data is in question, it will likely force commanders to refrain from using augmented reality. A similar, relevant issue is the extent of the augmented reality technology's electromagnetic signature. Will the interconnectivity of the squad's augmented reality compromise the unit and deliver information to the enemy? What we do not want to face is a situation where adversaries can pinpoint the location or proximity to U.S. forces by simple detection measures. So, worst-case scenario, inexpensive devices can nullify a significant U.S. investment in technology, training and tactics. Added to the loss of usable augmented reality equipment, the soldiers could be “HUD-crippled.” Navy aviators use the term “HUD-cripple” to visualize a complete dependency of heads-up displays in the cockpit. The “HUD-cripple” is the loss of traditional Navy aviator skills such as landing on an aircraft carrier without the heads-up display. Will soldiers have retained the skills to fight effectively without augmented reality if it goes down? Technical advancements bring us new options and abilities, and they increase mission success. But as with all uncharted territory, they also bring surprises and unanticipated outfalls. During the war in Vietnam in the 1960s and 1970s, military aviation instruments took a significant leap forward, going from World War II-styled gauges in fixed-winged Douglas A-1 Skyraider planes to an earlier version of today's instrumentation in McDonnell Douglas F-15 Eagle fighter jets rolled out as the war in Vietnam came to an end. Parallel with the military advancements, these avionic upgrades were transposed into civilian cockpits with increased complexity and variations, as jetliners are multi-engine airframes, where the number of information points and alarms became numerous in the jetliner cockpit. In the late 1970s and early 1980s, civilian aviation faced several accidents that were hard to explain with standard aviation physics and crash evidence. Instead, the conversations recorded in the black boxes revealed these fatal air crashes. Several of the deadly crashes could have had another outcome if the pilots had not become overwhelmed by all the blinking lights, alarms, buzzers and avionics grabbing their attention, so the pilots lost situational awareness and focus. The warnings, avionics and buzzers had the correct information, but the presentation was a tsunami of red blinkers and alarming sounds, lacking any hints on how to prioritize what needs to be done to recover from a dangerous in-flight emergency. In our view, the key to effective augmented reality is to structure and segment what matters and when. Units — and it varies from soldier to soldier — have different experience levels, so information has a variation in value down to the soldier level. In research design, you seek to explain as much as you can with as little as you can without losing rigor. The same challenge goes for augmented reality, where rigor could be said to be the integrity of the information. Transferred to the ground-fighting world, are we, as an engineering-driven nation, so technology-happy that instead of creating tools for increased survivability and mission success, we initially increase the risks for the war fighter and only correct these after we suffered a surprise in combat? We understand that implementing augmented reality is a long process that is just now at the stage of proving the concept; with setbacks and successes, where are we on the learning curve? In our view, synthetic learning environments have already matured and provide an ample opportunity to use the augmented reality technology with a high return on investment. The opportunities reside in knowledge transfer, sharing experiences, preparing for an ever-changing operational environment, and by doing so, increasing soldiers' survivability and ensuring mission success. 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  • Contract Awards by US Department of Defense - January 13, 2020

    14 janvier 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    Contract Awards by US Department of Defense - January 13, 2020

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  • Following industry trend, Airbus dives into data

    18 juillet 2018 | International, C4ISR

    Following industry trend, Airbus dives into data

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