JED - December 2016 - 40

sees the same picture. "Threat emitters
are increasingly agile in the spectral domain with waveforms, frequency, and
behavior able to be altered on timescales ranging from pulse to an engagement. This challenge is compounded by
commensurate growth in spectral signal
density. Agile radars are showing up in
unexpected frequencies with waveforms
that are difficult to find, particularly
when they are obscured in high-signal-density environments. As a result,
systems will have precious few threat
behavior observations to use before deciding what to do. Learning about a new
radar must happen in real time ahead of
the threat finding its target."

COGNITIVE EW NEEDED
TO ADDRESS THE THREAT
To meet and keep pace with the
threat, Yuse says cognitive systems that
can sense the RF environment and adapt
to it are needed. "Our systems must rapidly respond to dynamic changes in adversary EMS parameters. Cognitive EW,
real-time-decision-making and associated tactical execution are priorities. For

EMS operations (EMSO), machine learning provides the ability to observe, analyze and act against threats that were
unknown before the mission."
Pointing to DARPA's extensive ongoing efforts in the area, CSBA's Clark outlines the current state of the technology
and the path he expects to see followed
as advancements are made. "Today our
systems are pretty automated, able to
generate pre-planned responses to stimuli, but we're now moving into the realm
of making these systems adaptable,
meaning they can take information and,
based on what that information is telling them, be able to take several preplanned responses and come up with a
technique or combination of techniques
that would be effective. The systems are
smarter, but their response is still based
on operator input."
Clark describes the next step as the
place where actual transition to machine learning or AI will take place.
"We're looking toward EW systems that
will be able to detect an unknown signal
that doesn't look like anything they've
seen before, but based on its underlying

characteristics, be able to figure out a
technique that might be effective, use
that technique it creates, observe what
the effect is, and then change that
technique in real time. The technique
will continue to change in response to
what the machine is seeing in the environment." Clark says this kind of experiential learning is being worked on
now at DARPA as part of the agency's efforts in cognitive EW, and that they're
currently building demonstrations of
the capability.
According to BAE's Niedzwiecki, work
is, in fact, going on in cognitive EW
across the R&D community. "We're heavily involved in that process, particularly
in machine-learning algorithms." He describes the goal as follows. "Instead of
looking up and seeing how a new signal
matches to things I've seen before, I use
its general characteristics to infer what
its capability might be and then I use
a series of techniques to try to attack
that threat and observe how its behavior changes in response to determine if
I'm effective. I then use that knowledge
to train my algorithms."

The Journal of Electronic Defense | December 2016

40

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2016-10-17 1:53 AM


http://www.EmpowerRF.com

JED - December 2016

Table of Contents for the Digital Edition of JED - December 2016

The View From Here
Conferences Calendar
Courses Calendar
From the President
The Monitor
Washington Report
World Report
Interview: Col Jeffrey N. Aldridge, USAF
Interview: US Rep. Joe Pitts
The Future of Airborne Electronic Attack
Regaining the Advantage – Cognitive Electronic Warfare
Technology Survey: Flightline and Portable EW Simulators
AOC EW Singapore Preview
New Products
Report from the 2016 EW GCC Conference
Crows in the Community
The Heat is On
EW 101
Report from the 2016 AOC CEMA Conference
2016 AOC Award Winners
AOC News
Index of Advertisers
JED Quick Look
JED - December 2016 - cover1
JED - December 2016 - cover2
JED - December 2016 - 3
JED - December 2016 - 4
JED - December 2016 - 5
JED - December 2016 - The View From Here
JED - December 2016 - 7
JED - December 2016 - Conferences Calendar
JED - December 2016 - 9
JED - December 2016 - Courses Calendar
JED - December 2016 - 11
JED - December 2016 - From the President
JED - December 2016 - 13
JED - December 2016 - 14
JED - December 2016 - The Monitor
JED - December 2016 - insert1
JED - December 2016 - insert2
JED - December 2016 - 16
JED - December 2016 - 17
JED - December 2016 - 18
JED - December 2016 - 19
JED - December 2016 - 20
JED - December 2016 - 21
JED - December 2016 - 22
JED - December 2016 - 23
JED - December 2016 - 24
JED - December 2016 - 25
JED - December 2016 - Washington Report
JED - December 2016 - 27
JED - December 2016 - World Report
JED - December 2016 - 29
JED - December 2016 - Interview: Col Jeffrey N. Aldridge, USAF
JED - December 2016 - 31
JED - December 2016 - 32
JED - December 2016 - 33
JED - December 2016 - Interview: US Rep. Joe Pitts
JED - December 2016 - 35
JED - December 2016 - 36
JED - December 2016 - 37
JED - December 2016 - The Future of Airborne Electronic Attack
JED - December 2016 - 39
JED - December 2016 - 40
JED - December 2016 - 41
JED - December 2016 - 42
JED - December 2016 - 43
JED - December 2016 - 44
JED - December 2016 - 45
JED - December 2016 - 46
JED - December 2016 - 47
JED - December 2016 - 48
JED - December 2016 - 49
JED - December 2016 - 50
JED - December 2016 - 51
JED - December 2016 - 52
JED - December 2016 - 53
JED - December 2016 - 54
JED - December 2016 - 55
JED - December 2016 - Regaining the Advantage – Cognitive Electronic Warfare
JED - December 2016 - 57
JED - December 2016 - 58
JED - December 2016 - 59
JED - December 2016 - 60
JED - December 2016 - 61
JED - December 2016 - 62
JED - December 2016 - Technology Survey: Flightline and Portable EW Simulators
JED - December 2016 - 64
JED - December 2016 - 65
JED - December 2016 - 66
JED - December 2016 - 67
JED - December 2016 - 68
JED - December 2016 - 69
JED - December 2016 - 70
JED - December 2016 - AOC EW Singapore Preview
JED - December 2016 - 72
JED - December 2016 - 73
JED - December 2016 - New Products
JED - December 2016 - 75
JED - December 2016 - Report from the 2016 EW GCC Conference
JED - December 2016 - 77
JED - December 2016 - Crows in the Community
JED - December 2016 - 79
JED - December 2016 - The Heat is On
JED - December 2016 - 81
JED - December 2016 - 82
JED - December 2016 - 83
JED - December 2016 - 84
JED - December 2016 - 85
JED - December 2016 - EW 101
JED - December 2016 - 87
JED - December 2016 - 88
JED - December 2016 - 89
JED - December 2016 - Report from the 2016 AOC CEMA Conference
JED - December 2016 - 91
JED - December 2016 - 92
JED - December 2016 - 2016 AOC Award Winners
JED - December 2016 - 94
JED - December 2016 - 95
JED - December 2016 - 96
JED - December 2016 - 97
JED - December 2016 - 98
JED - December 2016 - 99
JED - December 2016 - AOC News
JED - December 2016 - 101
JED - December 2016 - 102
JED - December 2016 - 103
JED - December 2016 - 104
JED - December 2016 - Index of Advertisers
JED - December 2016 - JED Quick Look
JED - December 2016 - cover3
JED - December 2016 - cover4
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