Le F-35 gagne en efficacité pour la destruction des défenses anti-aériennes

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  11 novembre 2024 | International, Sécurité

  New GootLoader Campaign Targets Users Searching for Bengal Cat Laws in Australia

  Bengal cat ownership searches in Australia lead to GootLoader malware, Sophos reveals.

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  7 octobre 2020 | International, C4ISR

  SpaceX, L3 to provide hypersonic tracking satellites for Space Development Agency

  Nathan Strout WASHINGTON — SpaceX and and L3 Harris will contribute satellites to track hypersonic weapons to the Space Development Agency's planned mega-constellation, with the nascent agency announcing Oct. 5 it has selected the two companies to build its first wide field of view satellites. Under the contracts, each company will design and develop four satellites equipped with wide field of view (WFOV) overhead persistent infrared (OPIR) sensors. Operating in low Earth orbit, the sensors will make up the inaugural tranche of the SDA's tracking layer — the Pentagon's new effort to track hypersonic weapons from space. “This SDA tracking layer is going to consist of a proliferated, heterogeneous constellation of WFOV space vehicles that provide persistent global coverage and custody capability. That's going to combine with activities in the Missile Defense Agency as they build toward their Hypersonic and Ballistic Tracking Space Sensor (HBTSS) medium field of view (MFOV) space vehicles,” Acting Deputy Undersecretary for Research and Engineering Mark Lewis told C4ISRNET. Per the announcement, SpaceX will receive $149 million, while L3 Harris will receive $193 million. According to SDA Director Derek Tournear, the awards were the result of a full and open competition, with the selection based purely on technical merit. SpaceX has made waves with its Starlink constellation — a series of satellites built to provide commercial broadband from low Earth orbit — and the Department of Defense has tested using Starlink to connect various weapon systems. However, the company does not have a history building OPIR sensors. According to Tournear, the company will work with partners to develop the sensor, which it will then place on a bus it is providing. SpaceX already has a production line in place to build a bus based on its Starlink technologies, added Tournear. “SpaceX had a very credible story along that line — a very compelling proposal. It was outstanding,” he said. “They are one of the ones that have been at the forefront of this commercialization and commodification route.” L3 Harris will develop an OPIR solution based on decades of experience with small satellites, small telescopes and OPIR technologies. “They had an extremely capable solution. They have a lot of experience flying affordable, rapid, small satellite buses for the department,” noted Tournear. “They had the plant and the line in place in order to produce these to hit our schedule.” Tracking hypersonic weapons The contracts are the latest development as the SDA fleshes out its National Defense Space Architecture (NDSA), a new constellation to be comprised of hundreds of satellites primarily operating in low Earth orbit. These satellites are expected to make up tranche 0 of the SDA's tracking layer, which will provide global coverage for tracking hypersonic threats. The glue that holds the NDSA together will be the transport layer, a space-based mesh network made up of satellites connected by optical intersatellite links. Like most planned SDA satellites, WFOV satellites will plug directly into that network. “The idea is it connects to the National Defense Space Architecture — the NDSA transport layer — via optical intersatellite links,” said Lewis. “And that will enable low latency dissemination for missile warning indications. It will provide track directly to the joint war fighters.” SDA issued two contracts in August for its first 20 transport layer satellites. York Space Systems was awarded $94 million to build its 10 satellites, while Lockheed Martin was awarded $188 million for its 10 systems. That transport layer capability is essential to the tracking layer's mission. Because they are so much closer to the Earth's surface than the U.S. Space Force's missile tracking satellites in geosynchronous orbit, the WFOV sensors will naturally have a much more limited field of vision. In order to track globe traversing hypersonic missiles, the WFOV satellites will have to work together. Once the first satellite picks up a threat, it will begin tracking it until it disappears over the horizon. During that time, it is expected to transmit its tracking data to other WFOV satellites over the transport layer. So as the first satellite loses sight of the threat over the horizon, the next WFOV is ready to pick it up, and so on and so forth. From there, the WFOV satellites will pass the tracking data — either directly or via the transport layer — on to the medium field of view satellites being developed by the Missile Defense Agency as their HBTSS. “SDA is developing the low cost proliferated WFOV space vehicles that provide the missile warning and the tracking information for national defense authorities, as well as tracking and cueing data for missile defense elements,” explained Lewis. “Meanwhile, the Missile Defense Agency is developing the high resolution HBTSS MFOV space vehicles — those can receive cues from other sources including the WFOV system — and they'll provide low latency fire control quality tracking data.” “The MFOV HBTSS satellites will then be able to hone in and actually be able to calculate the fire control solution for that missile, send those data to the transport satellites with a laser [communication] system ... and then the transport system will disseminate that to the weapons platform as well as back to" the continental United States, where MDA can broadcast that information, added Tournear. MDA issued $20 million contracts to Northrop Grumman, Leidos, Harris Corporation and Raytheon to develop HBTSS prototypes in Oct. 2019. Tournear noted that proposals for HBTSS “are being written as we speak.” Together, HBTSS and the SDA's tracking layer are meant to provide the data needed to take out hypersonic threats — which Congress is increasingly concerned by. “It's part of an integrated DoD OPIR strategy. So the wide field of view sensors and the medium field of view sensors are really integral to this whole NDSA system and legacy strategic missile warning capability,” said Lewis, praising MDA and SDA for working together to build a heterogeneous solution. Spiral development Of course, this initial tranche won't provide global coverage up front. As part of its spiral development approach, SDA plans to continuously add satellites to its mega-constellation in two-year tranches, with each tranche including more advanced technology. The tracking layer is not expected to reach global coverage until 2026, said Tournear. But as the constellation is built out, the more limited initial capabilities will be used to help integrate the space-based assets with war fighters. “We call tranche 0 our war fighter immersion tranche,” said Tournear. “What that means is, its goal is to provide the data in a format that the war fighters are used to seeing on tactical timelines that they can be expected to see once we actually become operational. The whole purpose of tranche 0 is to allow the war fighters to start to train and develop tactics, techniques and procedures so that they can create operational plans for a battle where they would actually incorporate these data.” With tranche 1 in 2024, the tracking and transport layers will essentially reach initial operating capability, said Tournear. That will include persistent regional coverage. According to Tournear, the tranche 0 satellites are set to launch in September 2022. Tournear told C4ISRNET his agency is planning to issue a separate solicitation for launch services later this week. That solicitation will cover all of the tranche 0 satellites, including the 20 transport layer satellites the agency ordered in August, the eight WFOV satellites and the HBTSS satellites. https://www.c4isrnet.com/battlefield-tech/space/2020/10/05/space-development-agency-orders-8-hypersonic-weapon-tracking-satellites/

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  9 septembre 2020 | International, Naval

  JUST IN: New Navy Lab to Accelerate Autonomy, Robotics Programs

  9/8/2020 By Yasmin Tadjdeh Over the past few years, the Navy has been hard at work building a new family of unmanned surface and underwater vehicles through a variety of prototyping efforts. It is now standing up an integration lab to enable the platforms with increased autonomy, officials said Sept. 8. The Rapid Integration Autonomy Lab, or RAIL, is envisioned as a place where the Navy can bring in and test new autonomous capabilities for its robotic vehicles, said Capt. Pete Small, program manager for unmanned maritime systems. “Our Rapid Autonomy Integration Lab concept is really the playground where all the autonomy capabilities and sensors and payloads come together, both to be integrated ... [and] to test them from a cybersecurity perspective and test them from an effectiveness perspective,” Small said during the Association for Unmanned Vehicle Systems International's Unmanned Systems conference, which was held virtually due to the ongoing COVID-19 crisis. Robotics technology is moving at a rapid pace, and platforms will need to have their software and hardware components replaced throughout their lifecycles, he said. In order to facilitate these upgrades, the service will need to integrate the new autonomy software that comes with various payloads and certain autonomy mission capabilities with the existing nuts-and-bolts packages already in the unmanned platforms. “The Rapid Autonomy Integration Lab is where we bring together the platform software, the payload software, the mission software and test them,” he explained. During testing, the service will be able to validate the integration of the software as well as predict the performance of the unmanned vehicles in a way that “we're sure that this is going to work out and give us the capability we want,” Small said. The RAIL concept will rely on modeling-and-simulation technology with software-in-the-loop testing to validate the integration of various autonomous behaviors, sensors and payloads, he said. “We will rely heavily on industry to bring those tools to the RAIL to do the testing that we require,” he noted. However, the lab is not envisioned as a single, brick-and-mortar facility, but rather a network of cloud-based infrastructure and modern software tools. “There will be a certain footprint of the actual software developers who are doing that integration, but we don't see this as a big bricks-and-mortar effort. It's really more of a collaborative effort of a number of people in this space to go make this happen," Small said. The service has kicked off a prototype effort as part of the RAIL initiative where it will take what it calls a “third-party autonomy behavior” that has been developed by the Office of Naval Research and integrate it onto an existing unmanned underwater vehicle that runs on industry-made proprietary software, Small said. Should that go as planned, the Navy plans to apply the concept to numerous programs. For now, the RAIL is a prototyping effort, Small said. “We're still working on developing the budget profile and ... the details behind it,” he said. “We're working on building the programmatic efforts behind it that really are in [fiscal year] '22 and later.” The RAIL is part of a series of “enablers” that will help the sea service get after new unmanned technology, Small said. Others include a concept known as the unmanned maritime autonomy architecture, or UMAA, a common control system and a new data strategy. Cmdr. Jeremiah Anderson, deputy program manager for unmanned underwater vehicles, said an upcoming industry day on Sept. 24 that is focused on UMAA will also feature information about the RAIL. “Half of that day's agenda will really be to get into more of the nuts and bolts about the RAIL itself and about that prototyping effort that's happening this year,” he said. “This is very early in the overall trajectory for the RAIL, but I think this will be a good opportunity to kind of get that message out a little bit more broadly to the stakeholders and answer their questions.” Meanwhile, Small noted that the Navy is making strides within its unmanned portfolio, citing a “tremendous amount of progress that we've made across the board with our entire family of UVS and USVs.” Rear Adm. Casey Moton, program executive officer for unmanned and small combatants, highlighted efforts with the Ghost Fleet Overlord and Sea Hunter platforms, which are unmanned surface vessels. The Navy — working in cooperation with the office of the secretary of defense and the Strategic Capabilities Office — has two Overlord prototypes. Fiscal year 2021, which begins Oct. 1, will be a particularly important period for the platforms, he said. “Our two Overlord vessels have executed a range of autonomous transits and development vignettes,” he said. “We have integrated autonomy software automation systems and perception systems and tested them in increasingly complex increments and vignettes since 2018.” Testing so far has shown the platforms have the ability to perform safe, autonomous navigation in according with the Convention on the International Regulations for Preventing Collisions at Sea, or COLREGS, at varying speeds and sea states, he said. “We are pushing the duration of transits increasingly longer, and we will soon be working up to 30 days,” he said. “Multi-day autonomous transits have occurred in low- and high-traffic density environments.” The vessels have already had interactions with commercial fishing fleets, cargo vessels and recreational craft, he said. The longest transit to date includes a round trip from the Gulf Coast to the East Coast where it conducted more than 181 hours and over 3,193 nautical miles of COLREGS-compliant, autonomous operation, Moton added. Both Overload vessels are slated to conduct extensive testing and experimentation in fiscal year 2021, he said. “These tests will include increasingly long-range transits with more complex autonomous behaviors,” he said. "They will continue to demonstrate automation functions of the machinery control systems, plus health monitoring by a remote supervisory operation center with the expectation of continued USV reliability." The Sea Hunter will also be undergoing numerous fleet exercises and tactical training events in fiscal year 2021. “With the Sea Hunter and the Overlord USVs we will exercise ... control of multiple USVs, test command-and-control, perform as part of surface action groups and train Navy sailors on these platforms, all while developing and refining the fleet-led concept of operations and concept of employment,” Moton said. https://www.nationaldefensemagazine.org/articles/2020/9/8/navy-testing-new-autonomy-integration-lab