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DFARS Defense Federal Acquisition Regulation Supplement.
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80
DFAS Defense Financing and Accounting Service.
DG OBSOLETE. Defense Guidance. See Defense Planning Guidance.
DGA Director General of Armaments (France).
DGP Defense Group on Proliferation.
DI (1) Data Item. (2) Developmental Item.
DIA Defense Intelligence Agency.
DIAC Defense Intelligence Analysis Center.
DIAM Defense Intelligence Agency Manual
Diameter (Optics) The unit of measure of the light gathering power of a lens.
DICE Digital Integrated Combat Evaluator.
DID Data Item Description.
Diffraction The spreading out of electromagnetic radiation as it leaves an aperture. The
angle of spread, which cannot be eliminated by focusing, is proportional to the
ratio of the wavelength of radiation to the diameter of the aperture.
Digital
Processing
The most familiar type of computing, in which problems are solved through the
mathematical manipulation of streams of bits.
DII Defense Information Infrastructure
Dip A period of significantly decreased RCS signatures of an RV at low altitude (6 to
12 km) between wake termination and de-sheathing.
DIPS Dynamic Isotope Power System (which provides up to 10 kW of power).
DIR Director.
Direct Air
Support Center
A subordinate operational component of a tactical air control system designed
for control and direction of close air support and other tactical air support
operations, and normally collocated with fire support coordination elements.
Direct Cost Any cost that is specifically identified with a particular final cost objective. Is not
necessarily limited to items that are incorporated into the end product as labor or
material.
Direct Labor Labor specifically identified with a particular final cost objective. Manufacturing
direct labor includes fabrication, assembly, inspection and test for constructing
the end product. Engineering direct labor consists of engineering labor such as
reliability, quality assurance, test, design, etc., that is readily identified with the
end product.
Directed Energy
(DE)
1. Energy in the form of atomic particles, pellets, or focused electromagnetic
beams that can be sent long distances at, or nearly at, the speed of
light.
2. An umbrella term covering technologies that relate to the production of a
beam of concentrated electromagnetic energy or atomic or subatomic particles.
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Directed Energy
Device
A system using directed energy primarily for a purpose other than as a weapon.
Directed energy devices may produce effects that could allow the device to be
used as a weapon against certain threats, for example, laser rangefinders.
Directed Energy
Weapon (DEW)
A system using directed energy primarily as a direct means to damage or destroy
enemy equipment, facilities, and personnel.
DIRLAUTH Direct Liaison Authorized.
DIRNSA Director, National Security Agency.
DIS (1) Distributed Interactive Simulation. (2) Defense Investigative Service.
DISA Defense Information Systems Agency, Washington, DC. (Formerly known as
Defense Communications Agency).
DISCO Defense Industrial Security Clearance Office
DISCOM Division Support Command (US Army term).
Discretionary
Judgment
The authority given USCINCSPACE or his duly authorized representative to
perform actions not covered by the ROE.
DISCRIM Discrimination
DISN Defense Information System Network (DISA term).
DISSP Defense-wide Information Systems Security Program.
DISUM Daily Intelligence Summary (JFACC term).
DITDS Defense Intelligence Threat Data System.
DITP Discriminating Interceptor Technology Program. The objective of DITP is the
development of advanced interceptor seekers to counter advanced threats.
DITP will integrate passive and active sensors into an interceptor seeker that
integrates data fusion processors, multicolor infrared sensors, and LADAR. DTP
flight demonstrations will involve the tracking and interceptor on-board
discrimination of targets of opportunity while providing fusion processor data
telemetry. (See also ASTP).
DIVARTY Division Artillery (US Army term).
DIW Defensive Information Warfare.
DLA Defense Logistics Agency, Alexandria, VA.
DLSC Defense Logistics Services Center (Battle Creek, MI).
DM Data Management
DMA Defense Mapping Agency, Fairfax, VA.
DME Distributed Management Environment.
DMI Dual-Mode Interceptor.
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DMRD Defense Management Review Decision.
DMS (1) Defense Message System.
(2) Dissimilar Mission Simulator.
DMSO Defense Modeling and Simulation Office (OSD).
　
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