By Cheryl Pellerin
DoD News, Defense Media Activity
WASHINGTON, March 30, 2015 – The Defense Advanced Research
Projects Agency is unveiling a new program to boost U.S. air superiority by
separating payloads such as weapons and sensors from the main air platform, and
using open-system architectures to seamlessly integrate plug-and-fly modules
into any kind of platform.
The program, called System of Systems Integration Technology
and Experimentation, or SoSITE, aims to develop and demonstrate concepts for
flying combinations of aircraft, weapons, sensors and mission systems that
distribute air-warfare capabilities across interoperable manned and unmanned
platforms.
The DARPA vision is to integrate new technologies and
airborne systems with existing systems faster and at a lower cost than advanced
adversaries can counter them, Dr. Nils Sandell Jr., director of DARPA’s
Strategic Technology Office, told DoD News in a recent interview.
“We feel that the [Defense] Department is facing some
significant technical challenges,” he said.
Threatened Technological Lead
“I talk to my friends and neighbors, and they take it for
granted that [the United States] has air superiority and that we can impose our
ability to project power anywhere we want to,” he said, adding that high-end
potential adversaries have been systematically developing their own equipment and
systems.
“Our technological lead is definitely threatened,” Sandell
said. “The threats are not only external but also self-inflicted by the extreme
degree of complexity being crammed onto massive military platforms.”
“Our systems are becoming so complex, so time consuming to
produce, that we can't keep pace with commercial technology and we can't keep
pace with the threat,” the director said.
Because fielding or upgrading advanced airborne systems can
take decades and cost billions of dollars, he added, it has not been possible
to modernize subsystems in the complex platforms apace with rapid advances in
commercial technology.
System of Systems
“A system-of-systems approach could help overcome [the]
inherent issue with high-cost, monolithic, multifunction platforms,” Sandell
said.
Distributed air-warfare platforms have other advantages, he
added.
“What we would like to enable is a future scenario in which
a smaller number of manned aircraft would combine with unmanned aircraft to do
[a] total job,” the director said. “They would be networked together … and the
unmanned aircraft could venture into the more dangerous territory, providing
some degree of risk avoidance for the pilots.”
The unmanned platforms would be simpler and could do
individual jobs like carry weapons, electronic warfare systems or sensors –-
the last allowing the manned aircraft to be silent and harder to detect, he
said.
Distributed Air Warfare
“The fundamental idea is to take platforms that today are
manned, monolithic and expensive, and distribute the capability over a much
more heterogeneous set of platforms to perform similar functions,” Sandell
said.
In such a configuration, the pilot becomes a battle manager,
deciding what the small aircraft should be doing and how to orchestrate it,
Sandell said, and DARPA has a suite of programs whose automation is designed to
help pilots with the task.
“We’ve recently come out with [a program] called Distributed
Battle Management, and that's exactly to provide the automation and decision
aids to enable a pilot to be able to fly his jet and do these future tasks,”
the director said.
It’s also important that the pilot is the decision maker, he
added.
Communications in Contested Environments
“We're not talking about a totally robot army or something
like that,” Sandell said. “The pilot has to be able to exert control [and] to
be in communication with these platforms, so we have a communications program
called Communications in Contested Environments that's working the issue of
getting these platforms to talk to one another.”
DARPA’s vision is that the combination of robust
communications and automation will be sufficient to allow the pilot to do those
tasks, he added.
Sandell said he wants to be clear that DARPA is not trying
to replace air platforms like the F-35 or the F-22, but rather to augment their
capabilities.
“[The monolithic platforms] are going to be expensive,” he
said. “We probably won't be able to buy as many of them as we would like to if
history plays out, so we want to be sure that the services, who ultimately make
decisions about what to buy, [have] an enriched set of options as they go
forward.”
Open-architecture Approaches
For the SoSITE program, a second focus involves DARPA and
the services’ engagement in open-architecture efforts to allow platforms to be
upgraded with equipment that seamlessly plugs and plays.
Sandell said the legacy approach, which often involves a
yearslong process to agree on standard interface, can limit the ability to
integrate new technology that doesn’t fit within that interface. By contrast,
he added, open-architecture tools more easily allow the integration of new
technology when it comes along.
The Air Force has an effort called Open Mission Systems, and
DARPA is collaborating closely with them, Sandell said. The Navy has an
open-architecture effort called Future Avionics Capability Environment that
DARPA works with, and they have recently shown impressive accomplishments, he
added.
SoSITE Program Phases
The SoSITE program has two phases, and it is now in the
two-year-long first phase, which has two technical areas, or TAs.
TA1 is architecture analysis, and TA2 is integration
technology. The program is less than a quarter of the way through the first
phase. In the second phase, the plan is for the two Phase 1 technical areas to
come together for the program’s experimentation portion.
According to DARPA, the agency has awarded contracts to
develop concepts for system-of-systems architectures and tools for rapid
integration and testing.
Under those contracts, Boeing, General Dynamics, Lockheed
Martin and Northrop Grumman are developing and analyzing promising
architectures and designing plans for flight experimentation with the
architectures.
Apogee Systems, BAE Systems and Rockwell Collins are
developing tools and technologies to enhance open-system architecture
approaches.
Robustness Against Cyberattack
One of the limitations of open architecture is that it
provides what Sandell said is known as “an increased attack surface” for
cyberattacks.
“What we're doing on our program, in our development of
system-of-systems integration technology, is building robustness against
cyberattack into the design process, as opposed to putting it in as an
afterthought,” the director said.
This involves things like building software into the system
that is located in random places in memory so an attacker won't know where to
go to find it, Sandell added. “There are techniques of that type we're building
into the process,” he said.
Of the three contractors who are developing techniques to
better integrate system of systems, at least two of them are addressing the
cyber problem and coming up with all sorts of techniques, Sandell said.
Looking to the Future
“They draw on our [Information Innovation Office] folks here
at DARPA, the primary folks who do cyber, so we're not doing research on cyber
so much as making sure the state of the art in cyber protection is built into
the system of systems design process,” he added.
Looking to the future, Sandell said that monolithic but
sophisticated platforms like the F-35 probably will continue to have very high
value.
“I think they will be part of a family of systems or of a
system of systems and not single silver-bullet solutions by themselves,” the
director said. “In particular, we think that any of the future platforms would
be designed in much more of an open-architecture fashion, so although the
platform may last for a long time and take a while to develop, the electronics
in it can be upgraded much more rapidly.”
He said he thinks, in a sense, "the F-35 is the last of
a kind. I don't think we'll develop anything that tightly integrated in the
future.”
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