August 22, 2024 | International, Land
KONGSBERG to build missile factory in Australia
The factory will manufacture and service KONGSBERG’s strike missiles to be used by the Australian Defence Force (ADF)
December 18, 2019 | International, Aerospace
Study: Counter-Drone Systems Proliferate, Challenges Endure
Graham Warwick
Counter-drone systems continue to proliferate on the market, but technical and operational challenges in countering small unmanned aircraft systems (UAS) have not yet been fully surmounted, says a new report by the Center for the Study of the Drone at Bard College, New York.
The second edition of the Center's Counter-Drone Systems report lists 537 systems marketed by 227 companies in 38 countries, up from 235 in the first edition published in February 2018. This is despite removing 24 products from the database that no longer appear to be available.
Citing a March 2019 solicitation by the Pentagon's Defense Innovation Unit which said “it has proven difficult to identify and mitigate threats using currently fielded technologies,” the report says “dozens of background interviews with military and law enforcement personnel have validated this assertion.”
The challenges extend beyond the issue of effectiveness “and include complex questions around safety, practicality, policy and legality,” says the report's author, Arthur Holland Michel, founder and co-director of the Center.
When it comes to detection effectiveness, radar may struggle to pick up small UAS flying close to the ground, while cameras might confuse a drone with a bird or aircraft and be degraded by poor weather, low visibility and strong sunlight.
Electromagnetic interference may degrade the detection performance of radio-frequency sensors, with many potential sources of interference in urban areas. Radar, some RF systems and electro-optical/ infrared (EO/IR) sensors require line of sight to the drone, which can be problematic in urban areas.
Acoustic sensors and RF detection systems rely on a library of sounds and signals emitted by known drones, but given the rapid rate at which drones are emerging on the market “even libraries that are updated often will never cover 100% of the drones that might be operating,” the report says.
A major detection issue is the level of false negatives and false positives, the report said, noting that results of FAA testing of counter-drone systems showed distinguishing true positives from false positives in cluttered environments required a high level of manpower.
Distinguishing between legitimate and illegitimate drone use is another issue. Remote identification technology and the FAA's pending Remote ID rulemaking, “may go a long way to addressing this issue once implemented, but it will not be a total fix,” the report says.
There is a short time window available in which to respond to a drone threat and potential dangers posed to bystanders by some counter-drone interdiction techniques. Long-range systems such as lasers and high-power microwaves “could pose a serious threat to aircraft operated above the targeted drone.”
In terms of interdiction effectiveness, the report points to results of a 2017 counter-UAS event staged by the U.S. Joint Improvised Threat Defeat Organization that showed the drones were resilient against damage. “More recent C-AUS exercises indicate this problem remains an enduring one,” it says.
Jammers have no effect against drones operating autonomously without an active RF link; many signal jammers have an effective range of only a few hundred meters; spoofing systems may not be universally effective; and all kinetic systems may struggle against drones moving fast or in unpredictable patterns.
Drone technology, meanwhile, is not standing still, the report says, noting research underway on UAS that can operate in GPS-denied environments, negating jamming, and are capable of actively defeating jamming or spoofing attacks.
Consumer drones may soon be controllable via mobile LTE networks rather than an RF link, the report says. LTE drones could be operated at essentially unlimited range and “would be difficult or dangerous to interdict with jamming systems without interfering with ubiquitous cellular communications,” it says.
The proliferation of counter-UAS systems will inevitably accelerate the development of technology to render them less effective, the report concludes, by programming drones to maneuver in patterns that make them hard to detect by automatic target algorithms.
The report also highlights the challenges posed by drone swarms. “A swarm doesn't have to be dynamic or truly autonomous to achieve these effects: 10 individual drone operators flying 10 drones in unison may just be as difficult to defend against as a true autonomous swarm of 10 aircraft,” it says.
https://aviationweek.com/defense-space/study-counter-drone-systems-proliferate-challenges-endure
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October 29, 2020 | International, Security, Other Defence
Will COVID-Stressed Countries Slow Their Arms Buys?
State Department's political-military leader sees mixed signals from abroad. Marcus Weisgerber The coronavirus pandemic might prompt U.S. allies to restructure arms deals for American-made weapons, a top State Department official. But R. Clarke Cooper, assistant secretary of state for political-military affairs, said there is still an appetite for U.S. weapons overseas — especially F-16 fighter jets and Patriot missile batteries. “If we're looking at long-term modernization plans across the board, we're seeing what I would say is [a] steady state in that place,” Cooper said Wednesday during a virtual Defense Writers Group meeting. Since April, the State Department has approved more than four dozen foreign arms deals with a potential total value of more than $91 billion. But just because the sales were approved doesn't mean they'll come to fruition. In some cases, U.S. companies are competing against one another and/or overseas firms for contracts. “On big-ticket modernization, while some states...may have looked to re-frame or push right to a later date particular procurements, we've not seen dramatic changes in their planning,” he said. “What it may mean is how they sequence certain procurements.” Germany last month canceled a multibillion- dollar helicopter competition between Boeing and Lockheed Martin, calling the project too expensive. At the same time, Switzerland recently moved forward with a competition to replace its F/A-18 Hornets. But economic pressures could prompt some countries to adjust payments schedules, Cooper said. “Based on their national budgets, [countries] might seek some sort of dependable undertaking,” he said. “Some states might seek foreign military financing or grant assistance.” By the way, Cooper added, the economic downturns could result in more NATO allies meeting the alliance's goal of members spending 2 percent of their gross domestic product on defense. “Bizarrely, we may have some states where their numbers look like they've had an increase [in defense spending] because they've had a drop in GDP,” he said. https://www.defenseone.com/business/2020/10/will-covid-stressed-countries-slow-their-arms-buys/169642/
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March 15, 2021 | International, Aerospace, Naval, Land, C4ISR, Security
Chaos, cash and COVID-19: How the defense industry survived — and thrived — during the pandemic
A year into the pandemic, Defense News has measured its toll on the defense industry. The full scope of damage is complex and still coming into focus, but a broad outline is becoming clear.