航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 : d5 s j; n- I4 ^* L9 aTheater Missile Defense Council (TMDC) 8 [1 K/ T! D- K4 l6 v# MA consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents / R% E4 o( u8 K" g6 z" l0 E$ Gand Program Managers. % ^- T: [6 u. p2 ATheater High 3 [3 \5 @2 i% `9 x3 ]. u% y( B9 GAltitude Area Defense System : Y( j! I; C1 f. g(THAAD) A ground-based, air transportable interceptor system that will provide wide area 5 e3 Q+ ~. H3 H* n3 ?defense capability by intercepting longer-range missiles at higher altitudes and at 8 @+ t! j& F: b7 _! @1 C: Igreater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. 1 Z. I4 W# O* K# d$ ]+ `& s" A) NTheater Missile $ E( @6 n0 L. S0 V3 F(TM) A theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable of attacking targets in a theater. Theater Missile Defense (TMD) : y$ n$ s$ T4 E6 ]OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. Theater Missile 3 I* |) q& V a# Q2 XDefense Ground- * }# Z1 R# K' x7 u8 u* PBased Radar " x7 `# N0 \, m+ X(TMD-GBR) 8 l. N. t# d5 V7 `( D" O, m3 k/ QA ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as 1 n" V& t% X. [& @) e- FTHAAD Radar. 9 P1 }- ?8 P" |- _' C- q; jTheater Missile " \' a3 \) O+ YDefense Initiative (TMDI) 5 s2 O: e. L9 B* X: ~! K; A( B1 TAn initiative under which all DoD theater and tactical missile defense activities are % Q' F8 N1 K/ q+ dcarried out. Section 231 of the National Defense Act for Fiscal Year 1993 (Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. & u. g, }8 M3 d, T" C7 h7 SThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of " j+ U( W2 A# }% h7 G0 s5 R& kthermal energy received per unit area at a specified distance is generally ! y1 c# n2 J# k6 `/ Texpressed in terms of calories per square centimeter. ) O9 _1 c6 F; X' w7 L$ n g. C* nThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or + N# t" h9 t" W+ O1 T' s+ Ureflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. 2 b' ?8 E! l- NThermal 2 L; A) |3 y+ A. ^: JManagement Technologies/techniques associated with the control and management of 6 B9 d. ?: V- M7 j% K; bthermal energy, its generation, dissipation, and recovery. # H) `& {2 Q) S, E! DThermal Radiation 9 k2 g6 Z' H) v S' a9 W* PElectromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of ) r; h) G0 K U9 X$ E1 {2 wultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, 5 V, z; m0 x! P: k, bemitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the ( g. {2 J& P% H3 b4 Nabsorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) # ?! Z0 r1 ]& ^2 z' g6 m! ~' g( H7 GMDA GLOSSARY, VER. 4.0 T 299 % w3 t. M0 u# c/ FThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; it is a region of more or less steadily increasing temperature with height, starting at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. Threat 1 N; m9 U( D5 `' W/ H+ x LCharacterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor # R" l, b7 `4 G, V(Threat Tube) A tube containing all the objects originating from launch sites and aimed at 1 O1 j$ s3 ~; }$ Q d1 y' u/ Rtargets whose spacing is close enough to permit the tube around the object u/ Y- P3 ?1 W7 strajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic 1 i6 k) j3 e. {, d1 vmissile defenses for the purpose of analysis and evaluation of those defensive " m/ H7 ~7 q- B! D# Zsystems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance 6 T, _3 f# G1 r2 kobjective. d/ z8 H& x7 u# I9 |9 gThreshold Defense 3 Y6 w( f/ {9 i0 R6 F4 nA defense strategy that concedes that the target can be destroyed at a price that is not prohibitive, but the presence of the defense is thought to require the 9 h/ l2 J* w' N- H) h0 k4 s/ goffense to mount a relatively large and complex attack. 9 `8 i5 Q p! U- KThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. ) y; \) u; t& d& }Thrusted Replicas (TREPS) ! I! H5 e9 ^- _$ F+ AConical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry 6 Z. H7 c! s2 J! u0 `- r. ephase. TI (1) Technical Instruction. (2) Technology Insertion. & j2 }% {! ?, A8 ?/ r! a lTIARA Tactical Intelligence and Related Activities. , O* D) c$ R! t0 H1 jTIBS (1) Theater Information Broadcast Service. g: G# X: X4 V: _' ]" v n(2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. 4 n6 O$ z! y$ \) @. F$ iTIDP Technical Interface Design Plan. ! y' t2 a( u* J" S" {" `TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat ; \; j L# y' p(e.g., boost phase). C% T- i* j+ u! TTiered Defenses The use of defensive systems at different phases of the missile trajectory. ' A4 }1 Q9 y5 jTIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. ' K( e6 `" P5 x& O7 g9 o1 qTIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. 5 J4 ?, w. Q" K+ P% u+ U, L9 T- o$ FMDA GLOSSARY, VER. 4.0 T 300 ' g5 a+ Z( P, Q. A* J' NTime-Phased Force and % y) v* ^+ s8 W- O' \- o& ^ X9 HDeployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual units required to support the operation plan and indicates origin and ports of debarkation or ocean area. 5 O2 V7 n. O2 Y) G' kTime of Flight / p& Y) E0 W/ H; x(Max) ! R b. c% k+ F- f5 D& X1 EThe maximum time for a booster or vehicle to perform its function from time of launch. Time on Station The time the sensor is in its operating position. Time Sensitive 0 E4 ^& [+ e8 [4 H2 N. iTargets Those target requiring immediate response because they pose (or will soon * b$ ]4 ~% Q. x4 V" P5 b) u/ mpose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. ( }$ r# g4 s& M3 B% ?TIMS Training Integration Management System (USAF term). 2 N8 o4 e- o5 kTIN Theater Intelligence Networks. & W$ J& X0 A2 v3 T9 Z+ cTIP TOPAZ International Program. 3 @- R& A) `) c. v5 XTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar ) b+ U3 C, C+ N$ l: b( O$ ~& fTerminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety 2 x) Y7 h6 x1 n6 Q, c$ U6 q# [) Q& zTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. 8 i, e1 K; L1 m0 }+ YTIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. 7 F, g: M1 Z$ I! X) C% K, `9 \TLA Time Line Analysis. TLAM Theater land Attack Missile. 5 c2 k+ h8 k$ J8 ?# l2 X6 s5 }3 L. aTLAM/D TLAN [with submunition] Dispenser (Navy term). ' Y! }5 y0 d( ^% Q3 KTLDD Top Level Design Document. TLV Target Launch Vehicle. TLX Teletype. & A; l ~8 W0 Z+ ? P& [TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). TMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T $ s& f5 s& ]8 |. _" g+ Z, c7 A301 * |; e) C& }4 I+ N1 Y0 gTMD C 0 ^8 h4 v+ [7 y1 z" j, s$ x3 / F, {$ e+ u* }8 kI Those assets that provide connectivity between and among Theater Ballistic * q; o% Z# g9 d# N5 F/ i2 |$ m, nMissile Defense forces. ! h* \9 b/ {+ u+ O4 u; nTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. $ A/ t& c. z$ a, JTMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. 1 Y* X. G; `; P' o: qTMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. : f5 \9 g5 `" p: d9 qTMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. " P1 U; Q1 y! y& pTO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. TOAM Tactical Air Operations Module. O/ C1 P* f. c; k+ xTOC Tactical Operations Center. 3 r; s: H+ `0 _+ \% N3 M, nTOE Table of Organization and Equipment. TOF Time of Flight. 1 y0 E5 g! Z2 ]$ e- g( ^TOI Track of Interest. 9 A2 G2 E ?2 d6 @6 NTOIA Task Order Impact Analysis. 1 b7 v# w" c3 D9 J4 v- ATolerance The ability of a system to provide continuity of operation under various abnormal $ w% l4 Y2 a- r5 ^9 rconditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. % U5 Z+ K8 U; ~7 F- \MDA GLOSSARY, VER. 4.0 T ; n4 s/ n2 b# B: @" P302 TOMD Task Radar Management Details. TOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). . M" a' Z# O8 yTOO Target of Opportunity. O; g# ~& z; r. Y& t: ^TOOL Target of Opportunity Launch. 8 ~' R" x9 S. v; H$ u: G: C nTOP Task Order Plan. : G1 t0 G4 c/ d+ xTop-Down Pertaining to an approach that starts with the highest-level component of a hierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. 0 J4 W* L) Y6 @% o. S9 F# wTop-Down : Y U+ A$ y& z6 N4 C: rDesign $ k9 k8 i" t! ]' n% S' I$ u' G3 ~The process of designing a system by identifying its major components, ! |9 L1 M9 X' [* N: jdecomposing them into their lower level components, and iterating until the - N3 v' l8 K3 w; H6 W0 t7 ?desired level of detail is achieved. Top-Down # i3 E& `0 D8 nTesting - Z8 A9 M8 S a( yThe process of checking out hierarchically organized programs, progressively, $ u! H( }( ^7 b, Ffrom top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target " H3 |2 Y9 D8 m/ O# YTotal Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given ; P5 q$ _; ?, H0 P! Ufiscal year. 7 }$ d4 p0 w7 c% XTotal Quality , m+ ~( I: ~7 |$ I3 F# j" TManagement (TQM) 3 [0 v( N+ t ]A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System ( m. f! {% b! c& J+ u }% d' LTOVS TRIOS Operational Vertical Sounder. $ X0 s& Y8 D) W, QToxicity The kind and amount of poison or toxic produced by a microorganism, or 1 Q* Z8 S; ?# ppossessed by a chemical substance not of biological origin. + `; @# M* G6 iTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 303 7 N! G2 \1 L3 \ XTPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. 8 g$ c+ e* }: p; eTPMT Total Preventative Maintenance Time (ILS term). , u; x( h9 i8 `) W9 m4 |+ fTPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. " B X$ q5 Y) x# S; s; i. TTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target 2 }$ O' w0 K; h* A" vPerformance Report. TPS Thermal Protection System. TPT Theater Planning Tool. ' l# @! z; @2 O5 j5 i M6 e* h) B6 XTPWG Test Planning Working Group. (U.S. Air Force) 3 b/ _4 m7 y# r1 Q' ]TQM Total Quality Management. " x1 m5 P* U- j' s. UTraceability (1) The characteristic of software systems or designs or architectures or . M# l7 r4 }' n: vdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and # m5 Y' u2 K1 c% Aconstraints. % i3 @5 ?% H' Z8 `3 }(2) The degree to which a relationship can be established between two or more products having a predecessor-successor or master-subordinate relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. 3 ?/ ~$ s. M" A& h(2) To display or record the successive positions of a moving object. (3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the earth. Track 2 w ~+ j7 D+ l* d1 QAssessment & E& y$ S. W, f% I' `The Track Assessment looks for anomalies in an object’s track data. An anomaly $ N$ |+ b2 }8 W% I8 U4 rin the track may indicate a hit. Track, Birth to 1 O: j4 T, x$ MDeath The maintenance of an associated track through all phases of flight (i.e., boost ' \/ r b h/ m$ ]to reentry). Track Correlation The combining of track information for identification purposes, using all available data. * r' h# O% a+ X4 {Track Extension This term usually applies to improvements in track estimates by use of new data. o" l3 ~" e& {8 u, A& Z$ F2 IIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). ! [& ?9 [2 b% l* H/ u, pMDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of ; G& K/ h$ p( |- ~the above. ( ?! C3 d5 F V9 x$ X3 a, ZTrack File-Track 7 J/ c0 M7 s. B) UHistory - y E# O9 V+ C$ CA set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. # j7 A6 s: b9 D+ _- P* X0 y! NTrack Formation The process of determining the track or tracks of detected objects. It is usually a $ O0 }/ b7 j# R. @ ^three-step process of data association, track initialization, and track improvement 8 _6 {" \% M# e# `( E! N2 Mby filtering. 4 h I2 q# h2 k! O+ wTracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and . B8 x; K3 a" }: D6 w2 b* UPointing 6 t1 t( d: [. |, h# D3 tOnce a target is detected, it must be followed or “tracked”. When the target is 2 s2 a) v0 a/ P: Ksuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing 4 y. `4 I: j" x# p: i# F# qare frequently integrated operations. Tracking Range (Max) 0 W- k2 l- ~/ _9 H: zThe maximum line of sight distance at which a sensor can maintain track of an object. 6 T0 u; a- Z) j5 BTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector of an object. The process typically requires observation from a number of frames. 1 R" W0 ?/ W Y4 T$ ~% ^1 E; ~Track Production Area & L# r; U* \$ v- fAn area in which tracks are produced by one radar station. 5 C& X0 X0 E1 C) Y4 V" mTrack Symbology Symbols used to display tracks on a data console or other display device. Track Telling The process of communicating air surveillance and tactical data information between command and control systems or between facilities within the systems. p- E$ g- F" WTelling may be classified into the following types: back tell; cross tell; forward tell; + W3 K! j6 G6 Q4 P0 _lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. 1 I( X" c* s6 J; @ GTraffic Capability Maximum + f" s3 y; n( y' Y/ MThe maximum number of objects per unit time which the sensor system can maintain track files. 1 `! |& @$ H' [: w. f6 mTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. 6 r4 ?4 ^) E, J/ l1 Q- N' |7 YTrain Threat geometry with objects placed in a line (string) along the velocity vector of reentry. Trajectory The curve described by an object moving through space. " D% o8 u/ s0 d# TTrajectory 1 D$ u6 o; ^( L4 }$ B0 u) a% W/ NHistories Trajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). + z9 r! N0 v8 E: f: L/ S3 TTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. 7 f! q, F; X/ M6 ? b2 G% eMDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. - Z' |& S+ D% t8 m& p- XTRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. " D! _$ G, K7 k8 S7 V2 }Transition to ; N; k6 n% P; I+ g* ZProduction A risk reduction process during which the program shifts (passes) from % h! n* j1 u% |* F- Idevelopment to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) V; w$ Y0 e$ R" X8 |Transmission - E( x" G4 G T1 PSecurity (TRANSEC) That component of security, which results from all measures, designed to protect 8 C* [: d5 K2 b/ P* Y0 x8 kcommunications transmissions from interception and traffic analysis. (See COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative $ Z( a. s5 O$ c* S0 Dspeed of the fluid is subsonic in some places and supersonic in others. This is encountered when passing from subsonic to supersonic speeds and vice versa. 0 u$ f5 |; W- b5 w- ZTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. Traveling Wave Tube (TWT) An electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in 4 Q; s. h A8 B! x/ Ssynchronism with it, in such a way that there is a net transfer of energy from the - y( R6 x/ i" {3 W: nstream to the wave; the tube is used as an amplifier or oscillator at frequencies in the microwave region. Traverse (1) To turn a weapon to the right or left on its mount. 8 U- {4 Y) u( p8 D& x5 R" ~(2) A method of surveying in which lengths and directions of lines between # s( V' b% e4 s" \! l8 wpoints on the earth are obtained by or from field measurements, and used in determining positions of the points. : a& F3 T& F/ D0 H1 FTraverse Level That vertical displacement above low-level air defense systems, expressed both as a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. 0 e# L+ K+ }: K. ATRD Technical Requirements Document. 3 `' j! s" m( B- ~ LTRE Tactical Receive Equipment. TREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. " R: N1 J6 }* t0 v5 k- L: n7 D# mTREM Total Radiation Environment Model. + M6 ~& W2 d" n6 T- F) a, eTREPS See Thrusted Replicas. 5 i7 ^! d: n. uTRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 3 P M; @1 _" U, I7 c! L306 6 s$ b# g8 o5 j' g6 mTRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. 6 o$ b! T% X% s1 F3 LTRIDENT Class of US ballistic missile submarines (USN term). % h" O+ ]4 G/ Y* sTRIDENT I (C-4) US SLBM (USN term). # T9 W/ D9 W( hTRIDENT II (D-5) US SLBM (USN term). ' B+ V- d/ D) c5 XTRIM Toxic Reduction Investment and Management. ! z( K0 i3 k6 H6 VTRM Technical Reference Model. # U: y- J: A9 W. [TRMP Test Resources Management Plan. 1 Z C7 H1 D9 ~3 x/ w8 s$ J# gTRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains # E: J5 w+ y3 T! J; oadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. - ?5 X4 T3 Y6 H P. @TROPO Tropospheric Scatter. . ~; k$ O0 |% m- D4 f A% bTropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the 6 v5 B* [) s. q2 a( a% _* c5 E1 ~tropics. (See Stratosphere, Troposphere.) ( o Z# g9 k D# l4 bTroposphere The region of the atmosphere, immediately above the earth's surface and up to 7 d( l9 Y' f4 B7 r2 r0 E6 othe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or less complete. Tropospheric Scatter 9 J' R; l( y( _) Z% [: \( C- wThe propagation of electromagnetic waves by scattering as a result of % x5 U& l. q9 V+ R% Firregularities in the physical properties of the troposphere. ! d: D' w# S( A) m& ?" b+ zTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). + b; S4 i. p! a% @% z(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. ! B" a% d. U5 \+ l9 ^ NTRR Test Readiness Review. Trusted 3 b/ L: L5 `8 \9 I" KComputer System/Software A system or its software that employs sufficient hardware and software integrity 7 c! l: ?$ T5 R* }measures to allow its use for processing sensitive or classified information. Trusted Path A mechanism by which a person at a terminal can communicate directly with the Trusted Computing Base. This mechanism can only be activated by the person " X" l! G/ r5 u1 cof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. ' ]5 c5 J) J' T) `+ n# N2 lTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 307 2 g9 j/ I, b" J9 eTSA Technology Security Analysis. 2 r( W# ~. W0 Y9 h# M$ ?* q+ D1 ZTSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. 5 }* h% V E' |7 mTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. 4 u- d# V( e+ ^3 U/ WTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. , C8 M; p1 Z0 B& r$ A# WTSMA Theater of Strategic Military Action. TSP Target Support Plan. 4 Z' v+ E5 w" D0 k% r- qTSPI Time, Space, Position Information. $ P8 G0 s/ U& `/ m5 \TSR Target System Requirements.

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TSRD Target System Requirements Document. & O% n7 Q2 M; {/ J2 Z) I" X1 @TSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. + b+ F& H/ K& S7 PTSWG Target Signature Working Group. 0 K/ l1 S4 I" o8 x/ P, mTT Total Time. * x1 t- |! X' Q2 o' }: ?' w6 xTT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). ) @& i+ t' N; |( gTTA Total Time Accounting. - P1 x$ T% E- U+ X) y' {0 uTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. . ]4 J! ~9 n" t1 w/ q+ `' RTTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, which have significant potential for improving testing. * T1 m+ O1 N' |2 W3 GTTEL Tools and Test Equipment List (ILS term). . s9 Z1 C2 t6 H8 X6 o) OTTL Transistor-to-Transistor Logic. % u4 W5 Q# o' C$ ?. c6 \. x% MTTP Tactics, Techniques, and Procedures. ) `9 s5 [3 N6 b* Q7 ITTSARB Technology Transfer and Security Assistance Review Board. , I3 w* Z" n4 a S& Y; L& NTTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T ' t; h' ?8 C5 X! ?6 n; v! o308 . x) j5 {* \% {" ?7 fTTV Technology Test Vehicle. TTY Teletype. * ~0 ?' H! c+ _, O2 F* cTUG TRACE User Group. $ i% Q+ v7 ~$ A8 f7 e& \- NTV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. 9 [. ^) O: ^# w' c$ E4 ~TVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. , E6 n o% y, O; z# p \# LTW Tactical Warning. 3 F( m& r9 W0 xTW/AA See Tactical Warning/Attack Assessment. ' T% w1 j4 ]+ _1 H; D9 r4 [9 aTW/SD Tactical Warning and Space Defense. TWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. . t; u$ C, `; d/ F( gTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). ! |0 a- A# g: `3 ]8 K' X' L8 a7 K. C4 ]TY Then Year (PPBS term). TY$M Then Year Dollars Millions. Type A - System 9 x: s8 E- W8 P+ B" y3 c8 YSpecification 6 d7 ~3 i; j, Y$ D; r* GStates all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical 9 P4 P1 n! }% U$ \9 a) T& _ Oconstraints are included. Type A specifications state the technical and mission requirements of the system as an entity. & G" P( ]( w$ z q: U M: GType B - , b$ Z$ ~5 g/ U* ODevelopment Specification 2 y( _9 r7 J8 `$ Z% R' KStates all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of those characteristics. Type C - Product Specification - t9 T" N7 X, x: `- W/ j$ \Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) ( L, a# X) E: @( l- m8 I- Orequirements. Type C specifications intended to be used for the procurement of 2 s) Q+ E" ^0 | a5 Bitems including computer programs. 2 ~0 V9 z+ s+ C: `" s- O# m3 ZTyphoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). 7 {2 X2 e7 f' t" N/ ?. `7 m/ {MDA GLOSSARY, VER. 4.0 U 3 A7 K# u$ Z$ A0 p309 . e! L* ~* r- k% F7 VU Uranium. `/ d, U) F8 YU&S Unified and Specified [commands] (pre-1996 term). $ y. V7 j7 [+ Y7 x! B$ R) f% EU.K (UK) United Kingdom. " S; s% t8 n/ |/ QU.S. (US) United States. 7 b( x3 Z$ `8 k9 [U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). 1 k% Q/ N) c$ m% O- v. OUAE United Arab Emirates. UAV Unmanned Aerial Vehicle. # F" g+ s" o* D: J2 R4 bUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. 2 e1 B4 D2 `; @! k) ` ?7 Z' \6 SUCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). # D/ E& r9 a5 H; |5 aUCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating - O' u) k! F+ q4 T' ?and coordinating program requirements for testing MRTFB ranges, as well as the 1 C6 o) u4 q9 Ucapabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the 2 o! f8 i2 u' X: zProgram Introduction (PI) (also called the Program Introduction Document (PID)), + e3 f3 U( G. t. Y8 W% {" I" i2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. $ ~# C! g# U% u5 I" }) TUEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. 8 [7 S: _+ S! KUF6 Uranium hexafluoride. ( b; x8 j3 m7 u# A- LMDA GLOSSARY, VER. 4.0 U 310 ) K; e, p( K: W- {# R ~UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. + Z# }& W/ K2 n9 ?, x) fUFP Unit Flyaway Price. UGF Underground Facility. UGS Unattended Ground Sensors. 7 M5 s' ?; y) [6 X/ IUGT Under Ground Test. UHF Ultra High Frequency. ) t( [' k6 f9 f+ cUIC Unit Identification Code. 7 l; S* X* i5 o% \UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. z0 Y0 V) @4 T: Z! G0 HUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). 4 [4 C) W4 s5 W& mULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. ! R% |2 K% f: w1 b2 r- \ULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). , `0 b2 n. h3 D) ]: cUMD Unit Manning Document. , Z8 G# i0 n R! u h( l& ZUMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. Unconventional Warfare # x, e2 ]' r. NA broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare includes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, covert, or clandestine nature. $ {: @" v9 T. N/ g8 z. f# a7 K' i" IUnified Action Armed Forces A publication setting forth the principles, doctrines, and functions governing the " w6 G8 S. P1 a7 x) q/ H) h) Iactivities and performance of the Armed Forces of the United States when two or more Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and & M) W) @/ |' ~& t: V; _composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary of Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 ' C+ C" w0 z D$ \) ]( M# fUNISYS UNISYS Corporation. ' f' \0 ?( D( U$ G. T% AUnited States Army Space Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States Space Command 7 W8 ^0 E; x3 ]% a' V% w# X(USSPACECOM) % U8 f$ n, g7 H8 zThe unified command responsible for planning and conducting ballistic missile / j$ @7 p6 E d$ K! j2 fdefense. Located in Colorado Springs, CO. 3 y- r* v/ k* G l N! HUnited States Strategic Command , H, x3 c0 w" p9 X. E7 p(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic 0 t) B8 |# ^( Z: g. J% g4 rmissile offensive combat strikes. Located at Offutt AFB, NE. United States 3 b6 L* }& X6 ]7 r. `& hTransportation Command , z& k: _+ @8 \! l8 R- \/ }9 ^0 `# E(USTRANSCOM) The DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of war. It is also responsible for providing airlift, sealift, surface transport, and 6 W3 P3 t3 B" r9 i" X& E8 yterminal services, and commercial air, land, and sea transportation, including as , N/ c) G- P& Nneeded to support the deployment, employment, and sustainment of U.S. forces 8 J- w3 H0 J1 ^7 don a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. Unresolved 1 N" v/ a# I0 r/ iObjects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. ; I" j% f% [8 B+ rUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. * K1 l" [+ J( _) m; HUOC Usable on Code (ILS term). $ y; L5 _' z1 `UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. / d8 G, i3 H6 e- v' Z0 Z% fUQT Unit Qualification Training (ILS term). ) z4 S& f5 I2 d3 O4 nURIP University Research Initiative Support Program. * G! E J m. B' \, mURL Uniform Resource Locator (internet protocol term). 5 r) S: @$ q! |' x& M) Z3 @URT Upgraded RTD. # e0 a4 o& A. [' H: ~+ n+ lUS/UK United States/United Kingdom. 2 a/ D# w4 Q+ D' u( G" F- |! [USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U ' L; E" t9 z O; Y( m# k+ j7 f312 + S" z' y, p$ T9 Z, N' g: AUSACE United States Army Corps of Engineers. 6 a! {) r$ Z, P! |" y: ZUSACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. 2 w% T. ~$ Q9 \7 r6 D D* V# p0 F* ~7 TUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. . f9 h/ {1 ]' K' f4 K$ x% o5 xUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. ( O8 E) D: _9 YUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ' h8 U" a' E8 h+ xUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. / d5 G& t" _& W; e$ TUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. * b% Q( z- H# u3 TUSAFE U.S. Air Forces in Europe. USAFLANT U.S. Air Force, U.S. Atlantic Command. V9 Z' B2 {, u. G7 I! `: a2 V7 L4 BUSAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. 6 _0 ?, S& u3 J; |7 DUSAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. ! l" n8 i& g- f3 tUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. 1 L$ g( r9 ?/ f4 `8 DUSAOTEC U.S. Army Operational Test and Evaluation Command. , {0 h. d8 o. C2 p: u$ w oUSARCENT U.S. Army Forces, U.S. Central Command. 3 ] K$ l/ ~6 w( j6 b3 mUSAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. & x5 c& G8 ^& A# kUSARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. # d" ^ D+ V. F2 U4 I( B/ vUSASDC U.S. Army Strategic Defense Command (<1Oct 92). USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. & x2 B: I: a! A) L- V9 k; @$ s eUSATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. USC U.S. Code. 0 z9 R: K9 C F" H! V; p! DUSCENTAF U.S. Central Command Air Forces. 6 l/ V2 L* `& J% e5 i7 {+ }# JMDA GLOSSARY, VER. 4.0 U 313 USCENTCOM United States Central Command, MacDill AFB, FL. / e/ {! M- V- U9 V* AUSCG United States Coast Guard. . ^* P1 u+ b z. n( F- AUSCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. 2 y6 Y5 f3 e$ L3 S% e% hUSCINCLANT Commander-in-Chief, U.S. Atlantic Command. - V+ d& N) ^* Y# ]1 c, X7 P. e4 P; C. IUSCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. + ?8 H- _4 j b3 e; d$ PUSCINCTRANS Commander in Chief, U.S. Transportation Command. 7 P& N" ]5 J1 u; m0 h9 vUSCS U.S. Customs Services. 7 {* {4 b2 m7 z3 NUSD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. ; y2 Z; ]- x$ W8 v" B: K% E& yUSDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. + H; M$ R/ c! _USDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine * d1 }9 ?9 }% X8 e4 {; ?/ U(hardware) or program (software) that is compatible with a person's ability to : Y5 B* p/ V- X7 @7 roperate it successfully and easily. User Operational Evaluation System (UOES) Prototypical system developed and tested as part of the early phases of the , q5 t# W6 B- udevelopment process. A UOES has two objectives: (1) testing, evaluation, and % w& {; A" x) @! atraining for a system proceeding through the normal acquisition process; and (2) ( J' G- w& l- v( Bcontingency defense capability should the need arise prior to completion of the normal acquisition cycle. # p0 t g5 l1 Y6 F0 K" TUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. USFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. 7 J5 T9 P4 Z& e) _. y$ u/ |USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U ! D' |+ [& q- A8 U4 t! v2 f314 USLANTCOM United States Atlantic Command (Now see USACOM). % y; f& r, R! C7 z$ m" ^& ~USLANTFLT U.S. Atlantic Fleet. 3 B: E* W, z; G- }1 Y* OUSMAR- FORCENT 4 V3 H4 \0 {9 ~U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. / m p( }& S/ S) A1 K) qUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. # y" A& K8 @9 z; o/ GUSN United States Navy. , t, I4 Y9 N7 o, {, v8 l0 M$ {$ }USNAVCENT U.S. Naval Forces, U.S. Central Command. 5 P! K) z0 J$ D# bUSNAVEUR U.S. Naval Forces, U.S. European Command. 9 X9 C2 |. N( r4 h# }2 |USNIP U.S. Naval Institute Proceedings. ) n, e2 ~6 {( ]% l) n6 bUSNO U.S. Naval Observatory. ) d: ^. h1 G+ [$ yUSNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. " R/ a2 I) `4 {, y4 fUSPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. X. C8 E+ u Y8 E$ eUSSOCOM United States Special Operations Command, Tampa, FL. - H& Z' T, d4 lUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. 5 S4 J) g3 Z" X. lUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. }2 I/ \. C7 s# Y# gUT Universal Time. ) f/ o$ U( Y& h; {UTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 1 J/ l& C- ~. T/ A5 \315 UTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). v4 p# w7 W% o* s9 P4 wUV Ultraviolet. UV Electro- " p: e5 Q* l/ n8 o+ x+ S8 D$ m- TOptics 6 j: ]+ N- h3 C) ?" d% cTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 316 V Volt. 9 p3 i9 E5 T0 s$ s2 R0 M- dV&H Vulnerability and Hardening. + Y: M, J8 M/ o M( cV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. * W' O# m* F% d" |Validation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, tactical situation, system design, tactics, and threat. " A5 H! u( W2 G7 { }VAMOSC Visibility and Management of O&S Costs. 3 B% L: U! s! L+ l# S$ {VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical N" v& k; F* f1 s! Hfactor introduced to average the effects of orientation, minor shielding, and 5 J) \6 T/ E( h; m! ~4 |( juncertainty of target response to the effects considered. 6 c8 z: J- D% J% ]+ t( DVBO Vertical Burn-Out (velocity). , v2 k$ i) R& m5 KVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. ( |7 T* z2 e, x% B$ E# GVDC Volts Direct Current. 4 L3 j$ y0 n. l3 c9 G/ ?VDD Version Description Document. VDU Visual Display Unit. VE Value Engineering. " N& k/ O$ m) WVECP Value Engineering Change Proposal. + e$ }& r, w1 t2 ^# LVerification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, calculations, logic, and interactions of the system under evaluation. $ l6 @! [5 d; V8 i1 A- n(2) The process of evaluating a system or component during or at the end ; D8 i1 x8 c9 C$ T' o- m3 mof the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. ' s0 M8 j2 I0 x! G% z! r& LVFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). ; |" R6 X0 n4 j! q; NVHF Very High Frequency. 2 G9 r9 \7 f0 Z0 e8 }VHSIC Very High Speed Integrated Circuit. 9 d3 t8 A4 R* B& BMDA GLOSSARY, VER. 4.0 V 317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 # L9 g0 t6 c8 p# \; LOperation Per Second (OPS), using a mixture of experimental three-dimensional . K2 H, U6 y" D, Q' ?5 F2 ^circuitry and commercial components. Project also demonstrates VIRGIL, a % [0 i9 |* M7 K/ a1 \1 w% F1 jgimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. - _/ C& q/ O/ K/ { G7 e. H, L# ~& dVINSON Encrypted Ultra High Frequency Communications System. VIS Visible. VIS/UV Visible/Ultraviolet. Visibility Range 0 U5 F7 C; n# k, F" T4 P(or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can # |: w m# r5 V, w! \1 y6 d+ ajust be seen against the horizon’s sky in daylight. The visibility is related to the clarity of the atmosphere ranging from 170 miles (280 kilometers) for an . J ?9 w* }8 S/ b2 F1 K5 S7 Jexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze or fog. The visibility on an average clear day is taken to be 12 miles (19 ' U- X0 ?2 x" g% a+ ? j2 |kilometers). 9 r! Z1 X( w+ l1 b0 [; G4 _Visible Electro- Optics Technologies/techniques employed by optical sensors in the visible portion of e- t8 y+ `; h9 W, othe wavelength spectrum. % l/ c2 R3 M, c, B& \VLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. ; R( E) b' j7 `0 MVLSI Very Large Scale Integration. ! { D2 z0 E; H4 a6 R2 SVLSIC VLSI Circuits. ' j: B8 |" X9 i) P# vVLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. : T9 i$ V1 V0 r$ c8 TVMF Variable Message Format (Telecomm term). 0 {4 j' E4 n2 ~& ~ }VOX Voice Actuation. & W. g3 `$ K1 {# O# ~4 z- O; g$ x* AVRI Vanguard Research, Inc., Fairfax, VA. ( F/ t' c, d- N$ R" EVTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. 9 I8 v( x) R5 n$ Z* y) e# K+ g8 nVUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 318 Vulcan UK bomber. VV&A Verification, Validation, and Accreditation. 0 o# ~5 L# N" {8 D, w% lVVER Pressurized water type nuclear power reactor. 0 o# ?. e. g: h" z% e( N: x( yVVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W 319 1 ~' |+ q9 J# b( {& I8 hW/ With. % h- S4 N$ H$ I' _6 Bw/o Without. , L+ _, m8 t3 {0 C/ H6 u3 e3 _W/TD Warning/Threat Detection. WAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. / w+ H5 S$ s9 W% E! BWAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more opposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. Y. B- p8 ?; A' l0 ?3 P# l1 FWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the / ]* j$ c' C* q, j! c: i0 K! d% xJNTF for use in CONOPS validation, missile defense program design verification, " `# L6 M G" J- M% lvalidation and accreditation, and support CinC/Allied wargames and 5 G& n2 E; Z! j: z2 G6 Uassessments. " a7 `5 ?; v: b9 S# D( ?+ }6 v4 P0 jWarhead A weapon, usually thermonuclear, contained as the payload of a missile. 0 x" n- [- b* T( z. a% s! oWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related 1 r% \* C3 h# N0 J; H2 L0 \/ hcomponents. WARM Wartime Reserve Modes. $ ^4 n3 b- _1 k# a! FWarning of Attack A warning to national policymakers that an adversary is not only preparing its & _. h. q- y' K/ K! j+ N: Jarmed forces for war, but intends to launch an attack in the near future. ' k! H% {2 B, W# z8 F j! p) y% bWarning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). * ^+ s8 |: S2 Y- X) l* s7 yWARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) Characteristics and operating procedures of sensor, communications, navigation * r% P: Z5 t$ H+ O$ ]1 baids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing ' k& P4 }/ v! a: N4 _commanders before they are used, but (2) could be exploited or neutralized if ' p! B l) {0 c1 nknown in advance. Wartime reserve modes are deliberately held in reserve for wartime or emergency use and seldom, if ever, applied or intercepted prior to such use. / R- Y! R7 r/ O' E+ O/ B3 aWAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 WASHDC Washington, District of Columbia. + W# e k& E @/ WWastage (Max) The maximum number of defense weapons which, when used, will be ineffective 3 {9 y- K5 f' {in contributing to the defeat of the offense. Watch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs , \! |* C% J5 O& S1 L' }. @to watchfulness without raising DEFCON. 1 N `/ a' x, s1 g* jWATS Wide Area Telephone System. * N8 N- e7 G. A" A; fWAVE Wideband Angular Vibration Experiment. " ?4 x! K0 u6 H8 }- l6 }0 WWavelength The distance between two points having the same phase in two consecutive 6 G% f- I$ { i: Acycles of a periodic wave, along a line in the direction of propagation. WB Wideband. ; ~' m* o# ] qWBM Weapons Battle Manager(s). * I) J6 E$ {7 d! hWBS See Work Breakdown Structure. : k6 e7 f' c6 @( W6 i( ^WCC (1) See Wing Control Center. (2) Weapons Control Computer. 7 U5 y) J6 H6 S$ @WCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. * V h0 l" b2 K7 ], K# [" K8 }WCS Weapons Control System. WDM Wavelength Division Multiplexon. 4 y5 W/ ?) }- V1 K$ D7 MWeapon Enabling The set of control functions without which defense weapons cannot be launched.