2D	two dimensional
3D	three dimensional
4D	four dimensional (three dimensional plus time)
A
AAAV	Advanced Amphibious Assault Vehicle
ACTD	Advanced Concept Technology Demonstration
A/D	analog to digital
AEW	airborne early warning
AFSATCOM	Air Force Satellite Communications Command
AI	artificial intelligence
AIN	Army Interoperability Network
AMEL	active matrix electroluminescent display
AMRAAM	Advanced Medium-Range Air-to-Air Missile
AMS	analog mixed signal
AMW	amphibious warfare
ANL	Armstrong National Laboratory
ARL	Army Research Laboratory
ASAT	antisatellite
ASW	antisubmarine warfare
ATD	Advanced Technology Demonstration
ATR	automatic target recognition
AWACS	Airborne Warning and Control System
B
BiFET	bipolar field effect trransistor
BIST	built-in self test
BMDO	Ballistic Missile Defense Organization
C
C3I	command, control, communications and intelligence
C4I	command, control, communications, computers and intelligence
CAD	computer-aided design
CAE	computer-aided engineering
CB	chemical/biological
CC&D	countercamouflage, concealment, and deception
CCD	charged coupled device
cm3	cubic centimeters
CMOS	complementary metal oxide semiconductor
CONOPS	Concept of Operations
CONUS	continental United States
COTS	commercial off the shelf
CTD	concealed target detection
D
D/A	digital to analog
DARPA	Defense Advanced Research Projects Agency
dB	decibel
DDR&E	Director Defense Research and Engineering
DDS	direct digital synthesizer
DIFM	digital intermediate frequency modulator
DOA	direction of arrival
DOC	Department of Commerce
DOE	Department of Energy
DRFM	digital radio frequency modulator
DSP	digital signal processor
DSWA	Defense Special Weapons Agency
DTAP	Defense Technology Area Plan
DTO	Defense Technology Objective
E
ECM	electronic countermeasure
EDA	Electronic Design Automation
EFOG	enhanced fiber optic guided
EHF	extremely high frequency
EIT	electronic integration technology
ELINT	electronic intelligence
EMD	engineering/manufacturing development
EMI	electromagnetic interference
EO	electro-optic(al)
ESA	electronically scanned array
ESM	electronic support measure
EW	electronic warfare
F
FAA	Federal Aviation Administration
FED	field emission device
FET	field effect transistor
FLCD	ferro-electric liquid crystal display
FOV	field of view
FPA	focal plane array
FPB	Fast Patrol Boat
FY	fiscal year
G
Ga	gallium
GaAs	gallium arsenide
GaN	gallium nitride
GaSb	gallium antimony
GBR	ground-based radar
GHz	gigahertz
GPS	Global Positioning System
H
HASS	High-Accuracy Strain Sensing
HBT	heterojunction bipolar transistor
HF	high frequency
HFDF
HFSWR	High-Frequency Surface Wave Radar
HPC	high-performance computer
HRR	high-resolution radar
HSS	Hunter Sensor Suite
HTS	high-temperature superconductor
I
IAS	Integrated Acoustics System
IC	integrated circuit
ID	identification
IEEE	Institute of Electrical and Electronic Engineers
IFF	identification friend or foe
IMF	intelligent minefield
IMINT	imagery intelligence
InP	indium phosphorus
I/O	input/output
IPE	integrated platform electronics
IR	infrared
IRCM	infrared countermeasure
IRFPA	infrared focal plane array
IRST	infrared search and track
ISAR	inverse synthetic aperture radar
ISR	intelligence, surveillance, and reconnaissance
ISS	Integrated Sensor System
J
JCS	Joint Chiefs of Staff
JLOTS	joint logistics over the shore
JSF	Joint Strike Fighter
JSTARS	Joint Surveillance Target Attack Radar System
JWARN	Joint Warning and Reporting Network
JWCO	Joint Warfighting Capabilities Objective
JWSTP	Joint Warfighting Science and Technology Plan
K
K	kelvin
km	kilometers
ksps	thousand samples per second
L
LANL	Los Alamos National Laboratory
LANTIRN	Low-Altitude Navigation Targeting Infrared for Night
LBVDS	Lightweight, Broadband Variable Depth Sonar
LCD	liquid crystal display
LELFAS	long-endurance, low-frequency active source
LO	low observable
LPI	low probability of intercept
LWIR	long wavelength infrared
M
M&S	modeling and simulation
MBE	molecular beam epitaxy
MCA	multichip assembly
MCM	mine countermeasure; multichip module
MCT	MOS-controlled thyristor
MEMS	microelectromechanical systems
MESFET	metal semiconductor field-effect transistor
MHz	megahertz
MILSTAR	military strategic, tactical, and relay (satellite)
MIW	mine warfare
MMIC	monolithic microwave integrated circuits
MMPM	millimeterwave power module
MMS	Marine Mineral Survey
MMW	millimeter wave
MOS	metal oxide silicon
MOUT	Military Operations in Urban Terrain
MPM	microwave power module
m/s	meters per second
Msps	Mega samples per second
MSTAR	Moving and Stationary Target Acquisition and Recognition
MWIR	mid-wavelength infrared
N
NASA	National Aeronautics and Space Administration
NAVAIR	Naval Air Command
NAVOCEANO	Naval Oceanographic Office
NAVSEA	Naval Sea Systems Command
NEDT	noise-equivalent delta temperature
NEXRAD	Next Generation Radar
NIST	National Institute of Standards and Technology
NLO	nonlinear optics
nmi	nautical mile
NOAA	National Oceanic and Atmospheric Administration
NSF	National Science Foundation
NSW	Naval Special Warfare
O
OCONUS	outside continental United States
OEIC	opto-electric integrated circuit
OMCVD	organo-metallic chemical vapor deposition
OMICs	opto-microwave integrated circuit
ONR	Office of Naval Research
OTH	over-the-horizon
OUSD	Office of the Under Secretary of Defense
P
Pd	probability of detection
PbMN	lead magnesium niobate
PCD	power control and distribution
PE	program element
PEBB	power electronic building block
Pfa	probability of false alarm
PVDF	polyvinylidene fluoride
R
R&D	research and development
RASSP	Rapid Prototyping of Application-Specific Signal Processors
RBV	Rapid Battlefield Visualization
RCS	radar cross section
RF	radio frequency
RS	Remote Sentry
RSM	radar signal modulation
RV	reentry vehicle
S
S&T	science and technology
SADARM	seek-and-destroy armor
SAR	synthetic aperture radar
SATCOM	satellite communications
Sb	antimony
SBIRS	Space-Based Infrared System
SC-21	Surface Combatant of the 21st century
SE&BE	Sensors, Electronics, and Battlespace Environment
SERDP	Strategic Environmental Research and Development Program
SHF	super high frequency
SIA	Semiconductor Industry Association
Si	silicon
SiC	silicon carbide
SiGe	silicon-germanium
SIGINT	signals intelligence
SIT	static induction transistor
SOF	Special Operations Forces
SOI	silicon-on-insulator
SOS	silicon on silicon
STOW	Synthetic Theater of War
T
TFSOS	thin-film, silicon-on sapphire
THAAD	Theater High-Altitude Air Defense
TMD	theater missile defense
TOA	time of arrival
TOC	tactical operations center
TOW	Tube-Launched Optically Guided Weapon
T/R	transmit/receive
U
UAV	unmanned aerial vehicle
UHF	ultra high frequency
USER	Ultra Small Electronics Research
USGS	United States Geological Survey
USSPACECOM	U.S. Space Command
USW	undersea warfare
UUV	unmanned undersea vehicle
UV	ultraviolet
UWB	ultra wideband
V
VHDL	VHSIC hardware description language
VHF	very high frequency
VHR	very high resolution
VHSIC	very high speed integrated circuit
VLWIR	very long wavelength infrared
W
W	watt
WAS	wide area surveillance
WAVES	Waveform and Vector Exchange Standard
Wh/kg	watthour per kilogram
WORM	write once-read many