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.
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The Army is further afield to get a vehicle protection capability in place for its current fleet against rockets and drones, and the service has provided no funding to procure an interim system for its Bradley in the meantime.
20 septembre 2018 | International, Aérospatial, Naval, Terrestre
By: Usman Ansari ISLAMABAD — Pakistan's ambassador to Turkey pledged this week to increase defense cooperation between the two countries to new levels, but after a string of recent deals, analysts believe further cooperation will be incremental. Speaking to Turkey's Daily Sabah, Muhammad Syrus Sajjad Qazi highlighted defense relations such as recent deals for platforms like the T-129 helicopter gunships and Milgem corvettes, which he said would further improve as the countries continue to explore new opportunities. The existing deals alone are likely to see substantial offsets and technological input for Pakistani industry, and build upon existing supply of defense technology critical for all three branches of Pakistan's military. Pakistan's defense industry generally lags behind other nations, and has struggled to offer much in return bar a deal for the PAC Super Mushak basic training aircraft, further highlighting the importance of the relationship between Ankara and Islamabad. Asked exactly how that relationship may further improve, Brian Cloughley, and author, analyst, and former Australian defense attaché to Islamabad, said there is room to do so. He highlighted training as one area of cooperation, thanks to tensions between Pakistan and the U.S., along with armored personnel carriers and future orders of helicopters. While Turkish AFV-related technology is already finding its way onto Pakistani APCs and tanks, Pakistan is exploring options to supplement or even replace its M113 type APCs, perhaps with an IFV design, with Turkey's Kaplan or Tulpar IFV programs potentially of interest. Turkey's T625 multirole transport helicopter may also be considered to replace Pakistan's range of legacy types. Both countries also have active fifth generation fighter development projects, but analysts believe this level of cooperation is presently a step too far. Justin Bronk, an analyst with the RUSI think tank, raises concerns given “the lack of any proven domestic capacity in both Pakistan and Turkey to produce a fifth-generation fighter, than with any issues around security or industrial interests.” “Neither country is in any position to develop such capabilities for the foreseeable future without massive external assistance and technology transfer,” he said That idea is echoed by author, analyst, and former air force pilot Kaiser Tufail, who nevertheless stresses their respective fifth generation programs “must continue for a long-term goal of manufacture”. Tufail believes both nations should co-operate on an interim type of jet, with some of the technical characteristics of a full fifth-generation fighter “rather than jumping straight to a full-capability fifth generation fighter.” Though new to aircraft manufacture, he believes Pakistan has gained a slight edge over its potential partner, having co-produced the JF-17, “essentially a Chinese design based on PAF's specifications”, though there is still “need for collaboration in design and production of any new fighter.” Turkey in comparison, though having license produced F-16s, lacks comparable modern fighter design experience. Their close relationship makes fighter co-production “logical” though, he said. Therefore, present co-operation “could well take the shape of a ‘Block-4' JF-17 developed by Turkey and Pakistan” to be “considered for joint design and co-production”, after which “a stealth fighter would then be a logical next step.” https://www.defensenews.com/global/asia-pacific/2018/09/19/future-pakistan-turkish-defense-cooperation-likely-to-be-incremental-for-now