9 avril 2018 | International, C4ISR
By: Mark Pomerleau
Advancements in electronics and tactics by high-end adversaries are forcing the Army to change the way it revamps and optimizes its communications network against current and future threats.
The problem: adversaries have become more proficient and precise in the sensing and jamming of signals.
“What we're looking for in terms of resilience in the future is not only making individual links more anti-jam and resilient, resistant to threats, but also having the ability to use multiple paths if one goes down,” Joe Welch, chief engineer at Program Executive Office Command, Control, Communications Tactical (C3T), told reporters during a network demo at Fort Myer in early March.
“Your phones work this way between 4G and Wi-Fi and that's seamless to you. That's kind of the target of what we're intending to provide with next-generation transport for the Army's tactical network.”
Members of industry are now looking to develop radios to these specifications outlined by the Army.
“We have an extensive library of waveforms — 51, 52 waveforms that we can bring to bear — that we can say look we can use this waveform to give you more resilience with this capability,” Jeff Kroon, director of product management at Harris, told C4ISRNET during an interview at the AUSA Global Force Symposium in Huntsville, Alabama, in March. “Down the road, we need to talk about resilience and what's going on with the near-peer threats.”
Next-generation systems, leaders believe, will be able to provide this necessary flexibility.
“The radios that we're looking at buying now — the manpack and the two-channel leader radios — have shown themselves to be able to run a pretty wide range of waveforms and we think it postures us to run some changes to those waveforms in the future as we look at even more advanced waveforms,” Maj. Gen. David Bassett, program executive officer of C3T, told reporters at Fort Myer.
While jammers have become more powerful and targeted in recent years, officials contend the entire spectrum can't be interrupted at once. The Army realizes links won't be jam-proof, Bassett told reporters at Fort Myer, so it is looking at how they can be either more jam-resistant or able to switch seamlessly across portions of the spectrum that are not being jammed.
Kroon noted that one of the big developments within the radio community down the road will be radios that seamlessly switch frequencies or waveforms without direct user input.
“I think, as we move forward, we'll start to have more cognitive capabilities that will allow [the radio] to adapt automatically, and keep the user focused on their own job and let the radio handle the rest,” he said.
In addition to multiwaveform and a large range of spectrum coverage, Kroon said the Army is also really looking for multifunction capabilities within radios.
Radios also have to have passive sensing capabilities to be able to understand the signals in the environment and provide some level of situational awareness of the spectrum environment.
“They have to have visibility into what's going on around them ... not just for [electronic warfare] purposes but sometime just knowing what's going on in the spectrum around you as a planner is really important,” Kroon said.
“What's actually going on out there, I don't know I was told this frequency was clear, how do I really know. Having a radio come back and say look what we hit ... it is actually very useful.”
11 octobre 2022 | International, Terrestre
The move to quicken production may come as a surprise, given the Army originally planned to slow the rate of AMPV purchases across its five-year plan.
31 juillet 2020 | International, C4ISR
TOKYO (Reuters) - U.S. defence company Raytheon (RTN.N) is lobbying Japanese lawmakers to replace Lockheed Martin Corp (LMT.N) as the supplier of powerful radars as Tokyo reconsiders plans for two Aegis Ashore missile defence sites, three sources said. “It's game on,” said one of the sources, who has direct knowledge of Raytheon's lobbying campaign. Raytheon's pitch includes a proposal to put its SPY-6 radar on refitted destroyers, as the U.S. Navy plans to do. The company says that would save money and time as Japan tackles new missile threats, drones and stealth aircraft. Lockheed Martin has a contract with Japan to build its $300 million SPY-7 radars at the two cancelled Aegis Ashore sites, but says other sites or ships are possible. But critics say dedicating ships to missile defence pulls them away from other duties, and new destroyers can cost hundreds of millions of dollars. And Japan could face financial penalties if it pulled out of its contract with Lockheed Martin. “We are looking at the various options available to us,” a defence ministry spokesman said. A key battle for the two companies will be winning the support of former defence ministers and deputy ministers who as early as next week will make recommendations to Prime Minister Shinzo Abe. That group, led by former defence minister Itsunori Onodera, formed in June after current defence chief Taro Kono suspended the Aegis Ashore plan. It has weighed in on missile defence and discussed proposals that Japan acquire strike weapons for that mission, Japanese officials have said. The group of lawmakers will release their recommendations on Friday after they present them for approval to the ruling Liberal Democratic Party's defence policy committee, Onodera told reporters after the group met on Thursday. Japan under Abe has beefed up its military with stealth fighters designed to fly off carriers, longer-range missiles, new amphibious units and stronger air defences meant to deter threats from neighbours, including North Korea and China. Kono said he ordered the Aegis sites relocated because rocket boosters that accelerate interceptor missiles into space could fall on residents. But concern over mounting costs was the main reason for that decision, according to the three sources. ADVERTISEMENT China is rapidly expanding and improving its ballistic missile arsenal, and in 2017 North Korea tested a missile that flew over the Japanese island of Hokkaido. With around three times the range of radars currently used by Japan, both SPY-6 and SPY-7 would greatly enhance Japan's ability to detect multiple attacks. One option for Japan that would avoid any political fallout would be to buy both radars, using SPY-6 on Aegis ships and deploying Lockheed's SPY-7 as an early warning radar, one of the sources said. CHOICE Onodera's backing would make that change more likely because he approved the Lockheed Aegis radar acquisition two years ago. At the time he was unaware that testing in Hawaii could add at least $500 million to Aegis Ashore's $4 billion budget, separate sources told Reuters last year. In an interview in the Asahi newspaper on Thursday, Onodera said the “ideal option” for Japan would be to find a safe ground-based location. He also noted that building Aegis ships would cost both money and manpower. Onodera's office declined an interview request, but one source familiar with his position on the radars described him as “flexible.” Masahisa Sato, a former deputy defence minister who also served as a deputy minister of foreign affairs, said Japan's choice is between SPY-7 at new sites, with the missile launchers deployed elsewhere, or building Aegis ships equipped with SPY-6. “I am recommending an increase in Aegis ships,” he said. “SPY-7 is under development and there is a question about how it would perform in a new configuration,” Sato added. Lockheed Martin said its system could be adapted to ships, and disputed questions about performance. “SPY-7 radar is the most advanced radar in the world today and we believe it is the best solution for Japan's defence needs,” the company said in an e-mail. For its part, Raytheon said the SPY-6 will be deployed on 50 U.S. Navy ships, calling it the “most advanced radar technology in production today.” https://www.reuters.com/article/us-japan-defence-aegis-exclusive/exclusive-as-japan-weighs-missile-defence-options-raytheon-lobbies-for-lockheeds-300-million-radar-deal-idUSKCN24V0VQ
4 septembre 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité, Autre défense
PATRICK TUCKER Two years after the Pentagon set out to spend billions on 10 breakthrough research and engineering efforts, defense contractors instead are putting most of their money in less ambitious research projects. The development gap between the military and its suppliers troubled investigators at the Government Accountability Office, or GAO, who determined in a report released Thursday that the Defense Department isn't keeping good watch over those private efforts and doesn't know how much of it would fit into the military's tech goals. The Pentagon's undersecretary for research and engineering in 2018 laid out several big idea research areas that would be most relevant to maintaining an edge on China or Russia. Many are in the very early stages of maturation; the biggest breakthroughs are expected in the second half of the coming decade. They are: artificial intelligence, autonomy, biotechnology, directed energy, space, cyber, microelectronics, hypersonics, networked command and control, and quantum science. These areas of the future will go on to determine technology superiority in 2030, and the Department of Defense is eager to invest . It plans to spend $7.5 billion on artificial intelligence, autonomy, hypersonics, and directed energy this year, according to the report. But GAO found that defense contractors in the past four years have been putting only 40 percent of their independent research dollars, sometimes called IR&D, against those priorities. Coincidently, “our analysis also showed that the majority (67 percent) of IR&D projects completed between 2014 and 2018 focused on incremental, rather than disruptive, innovation.” In other words, while defense contractors are spending some of their money on big ambitious goals, they prefer to spend more on low-hanging fruit, in little improvements to existing technologies that they can sell to the government more easily. Part of the reason for the apparent spending priority gap may be that the Defense Department doesn't track contractors' research and development spending very well. “Neither DOD nor the military departments review industry IR&D projects as part of their science and technology strategic planning processes. DOD is not reviewing IR&D projects because DOD's IR&D instruction does not require such consideration of the projects,” notes GAO. The Defense Department maintains a database to track the projects where contractors are spending research money. But individuals within the department make very little use of it. “For example... the Air Force accounted for more than 55 percent of all searches in 2019, primarily, from users with the Air Force Research Laboratory (AFRL).” The Pentagon's own lack of awareness could result in components, offices, or other parts of the military investing in research projects without knowing that a private company has a similar project underway. GAO recommends a few simple things to put the Pentagon and contractors more on the same page. First, make it mandatory for personnel in the office undersecretary of research and development to actually review defense industry IR&D; and, second, make the database more useful by asking the contractors to submit more data, like whether the projects they are undertaking are disruptive or just incremental, and the estimated cost when completed. https://www.defenseone.com/technology/2020/09/pentagon-defense-contractors-are-out-step-tech-innovation-gao-finds/168237/