JED - August 2013 - 35

are communicating, just frequency usage. For DOD, RadioMap is designed to
provide better situational awareness to
small tactical units such as platoons or
companies, their radios performing not
just their traditional function but providing information about nearby threats
and opportunities as well.

CHALLENGES, BIG AND SMALL
As if massive budget cuts were
not enough, DOD also faces increased

pressure to reduce its spectrum allocations or either lose some of them
or share them with the commercial
world, while also attempting to create a net-centric environment that
depends on the electromagnetic
spectrum. The latter was immensely
difficult before. Today’s search for
spectrum makes it even more challenging. And for the spectrum manager in the middle, it’s probably time
to stock up on antacids. a
The Journal of Electronic Defense | August 2013

tection, among other techniques. These
threats are what keep spectrum managers and the intelligence community
awake at night, and for good reason: Before they can be dealt with, they must
first be found.
To say that this is a Herculean challenge understates its difficulty. Even
using the most advanced spectrum capture hardware and analysis software,
a recording of even narrow swaths of
spectrum over a short period of time
– in a single location – generates terabytes of data. Multiply this by every
coverage area in America, and the NSA
will have to add a new wing to its new
data storage facility in Utah. Having
captured this data, an army of (you
guessed it) spectrum managers, or intelligence officers, need to sort through it
to find signals of interest that have a
habit of appearing randomly, at different frequencies, underneath other signals, among other characteristics.
Any discussion on this topic inevitably brings up one question: Does anyone actually know what signal activity
is present on a large-scale basis, what
it is, and whether it poses a problem?
Predictably, whether the goal is to find
terrorist cells or squatters in bands
where they don’t belong, the answer is
“no,” for the above reasons. To this end,
DARPA, best known for teaming up with
industry partners to accomplish what no
technology or technologist has achieved
before, is working on a program called
Advanced RF Mapping (RadioMap).
Its goal is to provide real-time
awareness of radio spectrum use across
frequency, geography, and time by
creating a map that dynamically depicts spectrum to simplify the task of
spectrum managers and allow them to
reduce spectrum congestion and interference. RadioMap uses data and voice
communications systems as input when
they are not communicating. DARPA
likens RadioMap to traffic cameras that
show traffic flow at different times of
the day, providing real-time situational
awareness. It may actually be more like
a Google Earth for RF.
Seemingly clairvoyant (the RadioMap
Broad Agency Announcement was issued
in 2012), DARPA takes pains to point out
that it’s not interested in what people

Patria, Finland, Tel. +358 20 4691, info@patria.fi

35

Patria ARIS, remote operable
real-time ELINT system based
on innovative wideband digital
receiver techniques and
3D user interface.

www.patria.fi

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http://www.patria.fi http://www.naylornetwork.com/jed-nxt/index.asp

JED - August 2013

Table of Contents for the Digital Edition of JED - August 2013

The View From Here
Conferences Calendar
Courses Calendar
From The President
Letters
The Monitor
Washington Report
World Report
The Spectrum Management Challenge: Creating Order From Chaos
Technology Survey: ELINT Receivers
EW 101
AOC News
Index of Advertisers
JED Quick Look
JED - August 2013 - cover1
JED - August 2013 - cover2
JED - August 2013 - 3
JED - August 2013 - 4
JED - August 2013 - 5
JED - August 2013 - The View From Here
JED - August 2013 - 7
JED - August 2013 - Conferences Calendar
JED - August 2013 - 9
JED - August 2013 - Courses Calendar
JED - August 2013 - 11
JED - August 2013 - From The President
JED - August 2013 - 13
JED - August 2013 - Letters
JED - August 2013 - The Monitor
JED - August 2013 - 16
JED - August 2013 - 17
JED - August 2013 - 18
JED - August 2013 - 19
JED - August 2013 - 20
JED - August 2013 - 21
JED - August 2013 - Washington Report
JED - August 2013 - 23
JED - August 2013 - World Report
JED - August 2013 - 25
JED - August 2013 - 26
JED - August 2013 - 27
JED - August 2013 - The Spectrum Management Challenge: Creating Order From Chaos
JED - August 2013 - 29
JED - August 2013 - 30
JED - August 2013 - 31
JED - August 2013 - 32
JED - August 2013 - 33
JED - August 2013 - 34
JED - August 2013 - 35
JED - August 2013 - 36
JED - August 2013 - Technology Survey: ELINT Receivers
JED - August 2013 - 38
JED - August 2013 - 39
JED - August 2013 - 40
JED - August 2013 - 41
JED - August 2013 - 42
JED - August 2013 - 43
JED - August 2013 - 44
JED - August 2013 - 45
JED - August 2013 - 46
JED - August 2013 - 47
JED - August 2013 - EW 101
JED - August 2013 - 49
JED - August 2013 - 50
JED - August 2013 - AOC News
JED - August 2013 - 52
JED - August 2013 - Index of Advertisers
JED - August 2013 - JED Quick Look
JED - August 2013 - cover3
JED - August 2013 - cover4
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