20 mars 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité
Par Michel Cabirol
Le salon international de défense et de sécurité terrestres et aéroterrestres Eurosatory maintient pour le moment ses dates du 8 au 12 juin.
Alors que les organisateurs du salon aéronautique ILA de Berlin ont été contraints d'annuler l'édition de 2020 (13 au 17 mai 2020), le salon international de défense et de sécurité terrestres et aéroterrestres Eurosatory, maintient quant à lui et pour le moment ses dates du 8 au 12 juin au Parc des Expositions de Paris-Nord Villepinte. Le Coges, qui organise Eurosatory, a mis tout son personnel en télétravail. "Nous nous employons à préparer avec soin le salon tout en assurant la sécurité et la protection de tous les participants", a précisé le Coges. Une décision concernant la tenue du salon ou son annulation sera prise avant fin avril.
"Nous espérons que cette crise sanitaire sera la plus courte possible ; nul ne sait aujourd'hui comment cette crise va évoluer", a fait observer le Coges.
18 février 2021 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité
The International Defence Exhibition and Conference is opening its doors to trade exhibitors and visitors Feb. 21-25, with more than 1,300 vendors as well as five countries participating for the first time.
11 mai 2020 | International, C4ISR
"The impact is significant, and it's unacceptable," Gen. Jay Raymond told the Senate Armed Services Committee. By THERESA HITCHENSon May 06, 2020 at 8:14 PM WASHINGTON: DoD is pressing for the FCC to reverse its controversial decision to approve Ligado's plan to create a mobile 5G communications network, one the Pentagon asserts will jam GPS receivers. “It is clear to DoD that the risk to GPS far outweighs the benefits of this FCC decision. And the FCC needs to reverse their decision,” DoD CIO Dana Deasy told the Senate Armed Services Committee (SASC) hearing during a marathon hearing this afternoon. A formal “re-petition” action has to be taken by National Telecommunications and Information Administration (NTIA) by the end of May. NTIA, which falls under the Commerce Department, coordinates federal agency use of the radio frequency spectrum. DoD, Deasy told the SASC, is working to provide NTIA with the necessary technical information to do so. SASC members were divided on the wisdom of the FCC's April 20 decision to approve Ligado's latest plan to repurpose its current L-band spectrum for use in a US-wide terrestrial 5G network. The SASC hearing did not fall along partisan lines. Instead, the division came between the SASC leadership and the committee's members who also sit on the Senate Commerce, Science and Transportation Committee. It has jurisdiction over the FCC. For example, while Republican SASC Chairman James Inhofe and Democratic Ranking Member Sen. Jack Reed excoriated the FCC decision, Republican Sen. Roger Wicker, who chairs the Commerce committee, expressed support for the FCC. Indeed, a number of senators with a foot in the Commerce Committee raised the fact that the FCC's decision not only was approved unanimously by the five FCC commissioners, but also has been praised by Secretary of State Mike Pompeo and Attorney General William Barr. (Barr was tapped by President Donald Trump on April 4 to head a new Telecom Team designed to ensure that China cannot dominate the 5G marketplace and undercut the security of emerging US networks.) DoD and many other agencies, including the Transportation Department, have opposed the planned Ligado (formerly LightSquared) network for nearly a decade, arguing that it will drown out GPS signals in most current receivers. Their protests have been echoed by a wide swathe of the defense and commercial transport industry, including the Aerospace Industries Association and the National Defense Industrial Association. Indeed, according to a press release put out today by Inhofe's office: “This opposition extends to the private sector as well. Numerous industries across the gamut – commercial air, satellite communications, weather, construction, and more – have also registered their objections to the FCC's Order.” Mike Griffin, head of DoD Research and Engineering, explained that the issue is the “noise” that will be created by Ligado because it will use spectrum designed for satellite use to rebroadcast via terrestrial cell towers. He said that the situation for the vast number of GPS receivers today would be analogous to trying to hear the “rustling of leaves” through the noise of “100 jets taking off all at once.” Perhaps most significantly, Griffin pushed back hard against Ligado's assertions in FCC filings (and most recently in a letter today to the SASC obtained by Breaking D) that most receivers would not be affected. He said testing done by the Transportation Department showed that high-end GPS receivers used in civil aviation, which costs some $10,000 each, are impacted by Ligado's planned signal strength. Even those “hardened” receivers are “barely capable” of discerning GPS signals through the “noise” caused by Ligado's 9.8 dBW — an energy level about equal to that put out by a 10 watt light bulb). More worryingly, Griffin asserted that most commercial GPS receivers — including those that would be used to guide self-driving cars in the future — “lose lock” on the signal at a power level some 100 times lower than Ligado plans to use. Gen. Jay Raymond, double hatted as the head of Space Force and Space Command, told the SASC that Ligado's network would have a “significant impact” on Dod's homeland defense mission, as well as on military and commercial space launch capabilities. “In my opinion, the impact is significant, and it's unacceptable,” he said. While Deasy said one avenue for reversing the decision could be legislative action, it remains unclear what the SASC can actually do, however — should the committee even be able to agree on a course of action. Inhofe said it is legally unclear to him right now whether the Congressional Review Act, that allows Congress to overturn a decision by a federal agency, actually applies to the FCC decision for technical reasons. (The FCC officially is independent of the Executive Branch.) Retired Adm. Thad Allen, former Coast Guard Commandant and chair of the Space-Based Positioning and Timing National Advisory Board, suggested that the Senate Commerce Committee should hold a hearing and force the FCC to reconsider. Those members of that committee participating today, including Wicker, seemed reluctant to consider the idea of even having an exploratory hearing. For example, Democratic Sen. Richard Blumenthal suggested that the matter perhaps might be better adjudicated in the courts, given the questions raised about the legalities of the FCC's administrative process that have been raised by members of Congress as well as several industry groups. https://breakingdefense.com/2020/05/dod-pushes-to-reverse-fcc-ok-of-ligado-5g-network/
18 octobre 2018 | International, Aérospatial, C4ISR
By: Adam Stone In the face of a rising near-peer threat to electronic communications, the Air Force is pressing forward with efforts to develop a new, more resilient, harder-to-jam waveform that soldiers could use on the battlefield. The service expects to receive responses from industry soon on a recent request for information around protected satellite communications. The request sought industry guidance on how best to implement a new, more resilient protected tactical waveform (PTW), which enables anti-jamming capabilities within protected tactical SATCOM. “The Air Force is looking to protect our warfighter's satellite communications against adversarial electronic jamming,” the Air Force's Space and Missile Systems Center (SMC) said in a written statement to C4ISRNet. The threat comes from “adversarial electronic jammers that are intended to disrupt and interfere with U.S. satellite communications,” leaders at SMC said. Protected tactical SATCOM is envisioned to provide worldwide, anti-jam communications to tactical warfighters in benign and contested environments. The quest to solidify satellite communication links has taken on increasing urgency in recent years. As satellite communications has emerged as an integral component in the military's command and control infrastructure, potential adversaries have stepped up their ability to disrupt such links. “Tactical satellite communications are vital to worldwide military operations,” the agency noted. “Our adversaries know this and desire to disrupt U.S. satellite communications. The Air Force is fielding Protected Tactical SATCOM capabilities to ... ensure warfighters around the globe have access to secure and reliable communications.” Industry is expected to play a key role in the development and deployment of any new waveform. Officials at SMC said that early prototyping efforts will be conducted through the Space Enterprise Consortium (SpEC), which is managed by Advanced Technology International. SpEC acts as a vehicle to facilitate federally-funded space-related prototype projects with an eye toward increasing flexibility, decreasing cost and shortening the development lifecycle. The organization claims 16 prototype awards to date, with some $26 million in funding awarded. Understanding the protected tactical waveform Government documents describe PTW as the centerpiece of the broader protected tactical SATCOM effort, noting that it provides “cost-effective, protected communications over both military and commercial satellites in multiple frequency bands as well as broader protection, more resiliency, more throughput and more efficient utilization of satellite bandwidth.” A flight test last year at Hansom Air Force Base suggested the emerging tool may soon be ready to deliver on such promises. While SMC leads the PTW effort, Hanscom is working in collaboration with MIT Lincoln Laboratory and the MITRE Corp. to conduct ground and airborne terminal work. Researchers from MIT's Lincoln Laboratory flew a Boeing 707 test aircraft for two and a half hours in order to use the waveform in flight. With a commercial satellite, officials gathered data on the PTW's ability to operate under realistic flight conditions. “We know this capability is something that would help our warfighters tremendously, as it will not only provide anti-jam communications, but also a low probability of detection and intercept,” Bill Lyons, Advanced Development program manager and PTW lead at Hanscom, said in an Air Force news release. The test scenario called for the waveform to perform in an aircraft-mounted terminal. Evaluators were looking to see whether its systems and algorithms would function as expected in a highly mobile environment. “Everything worked and we got the objectives accomplished successfully,” Ken Hetling, Advanced Satcom Systems and Operations associate group leader at Lincoln Laboratory, said in an Air Force press release. “The waveform worked.” Asking for industry input should help the service to chart its next steps in the development of more protections. While the request does not specify when or how the Air Force intends to move forward, it is clearly a matter not of whetherthe military will go down this road, but rather when and how. https://www.c4isrnet.com/c2-comms/satellites/2018/10/05/air-force-looks-for-help-on-new-hard-to-jam-satellite-waveform/