航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 5 k- _ R; X( }* W298 . n! N7 D1 R& R) C2 z9 xTheater Missile # @2 X' `6 H8 i' U4 w i& ~$ ^& zDefense Council (TMDC) A consultative body for considering TMD family of systems planning and + n4 d+ b0 B5 \: m# Q4 e$ lprogramming 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 T' }1 F' k* R7 T. r/ U: v' f8 dand Program Managers. Theater High ; V) j- ~; e3 e% }( @Altitude Area Defense System 2 E7 j! ?+ u5 `- |# J: X- i(THAAD) A ground-based, air transportable interceptor system that will provide wide area ! V. ?1 a1 X4 U$ q" h4 V6 Ldefense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. 0 b. O$ Y( Z1 D4 [" H4 F1 c8 qTheater Missile (TM) 2 g' s% o" ?' p2 u8 ~8 j9 P' tA 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) 4 w8 G+ b! a3 ~& DOBSOLETE. 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 6 X; \0 z1 E+ ]( s3 a. fDefense Ground- |, x) S( k$ J3 QBased Radar ( w1 c: D$ b5 e- _* `(TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and 8 C2 o" i+ b& a3 f& Y2 _discrimination capabilities for the THAAD interceptor system. Also referred to as ( M7 M0 Q( I6 t/ i3 {( t$ E4 KTHAAD Radar. Theater Missile Defense Initiative (TMDI) An initiative under which all DoD theater and tactical missile defense activities are / n, M# i5 e+ u' W. e! T3 Ncarried out. Section 231 of the National Defense Act for Fiscal Year 1993 ! b& Q2 q- @0 }. j L(Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of # y, z4 r* Z5 j' R# Dthermal energy received per unit area at a specified distance is generally / }& H6 ~ y* J! W" L9 Rexpressed in terms of calories per square centimeter. - f `' e& O$ a. z/ f& B! f7 zThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. % \& K# e5 u" o' ?3 M; u4 KThermal Kill The destruction of a target by heating it, using directed energy, to the degree 3 [7 i; }9 D1 k* I$ V/ u; {$ Cthat structural components fail. Thermal ! I* v* |. H& T" y- P+ MManagement 2 t6 M" y/ C; h& U! fTechnologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. Thermal Radiation Electromagnetic 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 ; N$ j" k! V: L& |0 _/ zultraviolet, visible, and infrared radiations. 1 @3 g+ X! |* Z7 {8 n% y" L9 YThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, " o) q% e# e- I t+ j9 Demitted by the nuclear weapon residue by virtue of its extremely high ]1 N& r/ |! f4 W8 v) C; }temperature; it also is referred to as the primary thermal radiation. It is the absorption 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.) * s2 h8 X% F" d7 j1 c3 @7 I- gMDA GLOSSARY, VER. 4.0 T 299 & ]) l- l# Z5 ]) L! Z) R/ zThermosphere 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 4 n- S7 |, E7 n# e* A- Q# @at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the ; N) T* {( W7 x# c2 n, vexosphere and most or all of the ionosphere. J y2 {- n+ L N# ^& D0 HThreat Characterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor (Threat Tube) A tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object " a; i' E3 N3 f( _4 g7 E9 Rtrajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive 3 q% x' I: c' J0 O" L5 @systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable ) y/ t6 F, _0 F6 W8 V' X' yvalue (threshold) required to satisfy the mission need and a performance objective. Threshold Defense A 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 4 ]7 p0 ?/ X0 S" S: b7 U# @offense to mount a relatively large and complex attack. - i" i" X- F, _; HThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. 8 {" b1 O. Y9 N4 IThrusted Replicas (TREPS) " `% v# b/ Q/ o/ XConical decoys equipped with a miniature rocket device. Generally used to ! @) j& }& Q, W5 n: I+ Cchange the decoy’s optical signature to resemble that of an RV in the reentry & _9 X5 j a$ p/ O$ Qphase. - ?6 Z6 Z6 T7 H. x7 {2 JTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. 6 K7 X1 c* i& ~' o6 r; Y2 s. ~$ q6 yTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. 0 h' Z& X3 ^2 g0 O, f% A: JTIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. " a8 O& Z( @: ~' ]1 E. T8 z$ fTier An integrated set of SDS elements that address a particular phase of the threat 4 \9 U& Q: [: v% v% n# g8 t$ h(e.g., boost phase). ' F5 @8 A* s% {/ STiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. 8 b% V6 `5 v Q+ h( q4 d# {/ VTIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. * F- }0 N4 V& l& h3 Y OMDA GLOSSARY, VER. 4.0 T 300 Time-Phased p! G7 T) ~" b( z3 T' S0 nForce and Deployment List * c& p9 u; J F1 Q8 AAppendix 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. : S6 b2 S8 r- L) R" aTime of Flight (Max) The maximum time for a booster or vehicle to perform its function from time of ! L' _9 `- M& T; s& ^8 Q. H" i" r( hlaunch. Time on Station The time the sensor is in its operating position. Time Sensitive Targets Those target requiring immediate response because they pose (or will soon ( X! J8 F# e* Y* ?$ ?% B. ^, ?( Upose) 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. TIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. TIP TOPAZ International Program. 4 g& v4 q7 p$ t2 k9 ITIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar 6 S% }0 ~3 C% R" xTerminal (GBRT).) / B8 }/ i( K) L; GTIRS Telemetry, Instrumentation and Range Safety " g) R+ t( g3 f5 Y0 f" b& }TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. * g% h5 x+ [2 v I3 [Titan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. 5 K# w; I- y* G4 `0 K5 ? v8 ]TLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). " n+ W. G$ ]& |( z: HTLDD Top Level Design Document. , ~; u$ O- t' E5 ^! w; g% kTLV Target Launch Vehicle. % q4 {9 s. W5 _! bTLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). TMCC Test Monitor and Control Center. / R; `2 H3 _" GTMD See Theater Missile Defense. . x! N1 Q- `$ H4 mTMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 301 5 ~# q: \( o S/ a3 B5 k. B+ NTMD C 3 7 _, t* @- x4 hI Those assets that provide connectivity between and among Theater Ballistic y6 @5 q+ F# \7 s/ U# W# b/ e QMissile Defense forces. . @0 C) e' P' [: s3 O/ e, C) b+ [- gTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). [! H! @% K: E# FTMD IA Theater Missile Interoperability Architecture. $ {& g$ h3 q2 z! f) lTMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. / o/ @* |" z, }1 lTMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). & X9 q: p- [* C; `TMDI See Theater Missile Defense Initiative. % s4 D6 f3 S: pTMDSE Theater Missile Defense System Exerciser. : Z2 ~; w4 o/ E0 Y& I+ g3 @' [+ U( M0 `TMMM TOMAHAWK Multi-Mission Missile. 1 k9 [( f5 D6 e$ gTMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. % D& E# ?& j5 wTNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. * O9 \. Q. M0 L8 _3 i2 }TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. 8 r6 B3 x8 {9 Q& P F8 GTOA Total Obligation Authority. 0 C$ v; l/ n; D0 A5 F8 DTOAM Tactical Air Operations Module. TOC Tactical Operations Center. ! {' E/ N+ j& ~& NTOE Table of Organization and Equipment. ' V U( R4 @& ~" C: @ uTOF Time of Flight. $ ~ E: B; K C) m2 XTOI Track of Interest. 9 r2 e! F2 h2 w; o. BTOIA Task Order Impact Analysis. " P# y! Z$ G- P* }Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T & v3 F8 c v/ d0 ^9 ^2 E7 H302 4 {; D9 s0 I9 B& W& J, a# n/ lTOMD Task Radar Management Details. TOMP Task Order Management Plan. ; j* O. b o; KTOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. + U# `; V7 w+ f2 a1 I% uTOOL Target of Opportunity Launch. TOP Task Order Plan. % x2 V+ O4 m& h3 T) q9 LTop-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. 1 Y. I' s3 Y2 q9 [& d, G( zTop-Down Design The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the 5 k3 @- T. g( s! L# [desired level of detail is achieved. / d# Z8 @ y! y# \Top-Down ) f5 k+ c' F% F2 K9 lTesting The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. % g) J. m0 ^+ C# N' F, g0 D- d3 Y6 E) yTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power 6 c" a+ @0 d2 D5 R& V6 K6 ?technology to U.S. BMD applications. TOR Terms of Reference. ) Z3 M0 o7 J& a, v2 lTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target " F4 i2 t" i, U9 z& \Total Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given + _# y; T8 F. [* O8 u7 r: d; Vfiscal year. Total Quality Management (TQM) 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 # E9 b, M" b1 k2 y3 R6 [" RTOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. " _, B+ ?1 x0 T' Q! l+ NTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. + [: c, H& P! c* } d1 | LTPALS Theater Protection Against Limited Strikes. - |9 [% M3 E( f8 u: i9 ITPBM Terminal Phase Battle Manager. . [) {$ X) x. |/ C2 O3 |TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T + ^. G" ^9 D {( {. ~4 x303 d# o( N2 h' Q0 M9 zTPEC THAAD Performance Evaluation Center. 1 S9 U# }+ H. u' k; w1 tTPEM Technology Program Element Manager (SDIO/MDA term). . s+ d9 `8 [* C2 g5 t% a; vTPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. : ?, M- |. m( U" i3 H% F- [! hTPFDL Time-Phased Force Deployment List. " s1 R% p3 C5 ]; t/ l6 BTPM Technical Performance Measurement. * Y1 o$ I" }) DTPMT Total Preventative Maintenance Time (ILS term). 2 i# D6 g' Z1 @3 l& jTPO (1) Test Planning Organization. (2) THAAD Program Office ( x. `1 x& d$ j$ UTPP Test Procedure Plan. % b6 g/ E6 }% S1 TTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. ) W: z! T1 A) {1 p+ k9 j* ` j! tTPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) ) x8 Y3 A3 i3 S& ]TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path N8 ?6 Q3 ^- Z# l(upward) and allocation/flowdown path (downward) of requirements and constraints. (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. % e8 \% Q/ @9 G( |9 ^(2) To display or record the successive positions of a moving object. % q- u4 ~; a! q5 ]6 i, Z/ z(3) To lock onto a point of radiation and obtain guidance from. 0 P* l! V9 i! W1 x r(4) To keep a gun properly aimed, or to point continuously a target locating 3 ]8 G' u1 \; ]9 e4 d4 [1 |instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the % k) q/ F8 w6 y# ?$ j& }; O) [! eearth. Track : \( F1 L( Q0 N5 Y9 w- O2 u5 gAssessment " \* G3 ], o1 T/ p6 Z2 D7 O; J& TThe Track Assessment looks for anomalies in an object’s track data. An anomaly 9 P, k5 e# z& min the track may indicate a hit. . A7 C- r& ]$ CTrack, Birth to Death - L3 |( R0 t- N% pThe maintenance of an associated track through all phases of flight (i.e., boost to reentry). Track Correlation The combining of track information for identification purposes, using all available ( J( z1 e6 S0 }data. / v7 B2 A$ j9 t6 E J' qTrack Extension This term usually applies to improvements in track estimates by use of new data. It is sometimes used to describe a process of target extrapolation to a future time 6 c4 a+ Y9 [0 t: G# }or place (e.g., reentry). MDA 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 the above. ! O; i$ a! g' ]% v& H5 DTrack File-Track History A set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a & A8 W$ r6 O% g$ ]three-step process of data association, track initialization, and track improvement by filtering. 2 l2 J1 ^! Q8 V& |Tracking The act of generating and maintaining a time history of an object's position and any other features of interest. 2 D" B7 {' P( Q6 `8 eTracking and Pointing Once a target is detected, it must be followed or “tracked”. When the target is successfully tracked, a weapon is “pointed” at the target. Tracking and pointing are frequently integrated operations. n! e |$ b- M0 F% I/ F% }Tracking Range (Max) 8 [0 C8 w( n' rThe maximum line of sight distance at which a sensor can maintain track of an object. 3 C2 u: H( u" S0 @( C' `( _ [Track 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 0 g8 Z& F. }$ [/ F% g: u, Xframes. Track Production Area ; @2 g; T. k# a8 z/ J! I, U2 qAn area in which tracks are produced by one radar station. Track Symbology Symbols used to display tracks on a data console or other display device. 0 l1 J( M& ~9 M8 X4 A/ ?, f" [ ^Track Telling The process of communicating air surveillance and tactical data information `6 b5 z% x0 Vbetween command and control systems or between facilities within the systems. ! b/ w4 W7 O4 V1 G* L5 Q0 wTelling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. ; ]! K6 D5 y) H% c" f7 Q* ETRADEX Target Resolution and Discrimination Experiment. 1 U" y( m/ Y7 ~6 _5 h6 mTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. / g( @+ o# V! r$ d, HTraffic Capability 2 K& B/ o. l4 |' F# ]2 w: IMaximum 3 m8 Y4 G2 `9 ^" wThe maximum number of objects per unit time which the sensor system can maintain track files. $ |8 ~1 _: v& [4 ?; D3 ^Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. % a8 F; z/ y6 Z* e4 J3 ~3 S0 CTrain 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. 4 L, V8 _0 D2 Y# F2 P4 ~/ _Trajectory Histories # l; w- y* F. V7 J. eTrajectory information on targets recorded over a period of time. " f* U, g, p! v3 ?9 fTRAK A data base management system (not an acronym). ! Y2 }# t8 E& z& a# f d$ fTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. 0 c# z) b6 w! U0 IMDA GLOSSARY, VER. 4.0 T $ J1 A% ^7 z/ E% ?( i5 t; W# y305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. 0 [# S+ H% \- nTRANSEC Transmission Security. 0 {+ |6 c2 K: [1 g/ q- B& H! `. VTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. 5 b6 E8 S$ }# V- v6 _4 c) F& iTransition to & G. C% r2 x) H( m# q/ AProduction , x G" l# F% e, [A risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a 2 y9 W/ a& m# U2 w5 E% w. R$ zprocess consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) , u* N# b Q$ D0 K. Q7 L5 xTransmission Security (TRANSEC) 1 d3 b2 z. X$ a+ g" BThat component of security, which results from all measures, designed to protect ) O' O4 ?! h% c$ _% Bcommunications transmissions from interception and traffic analysis. (See ! H- S8 X9 K* S$ F1 h( {COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative + j; F1 \0 I j* M2 ]; \, n# a0 vspeed 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. ' p. R- \) j0 p$ ~Transponder 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. % J0 U c( {, j/ uTraveling Wave Tube (TWT) An electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in 1 _3 W) |3 B) E3 Q" G) csynchronism with it, in such a way that there is a net transfer of energy from the stream to the wave; the tube is used as an amplifier or oscillator at frequencies in the microwave region. . \ b9 W) l% {+ o- zTraverse (1) To turn a weapon to the right or left on its mount. (2) A method of surveying in which lengths and directions of lines between + I* r" J8 N3 K/ ~8 mpoints on the earth are obtained by or from field measurements, and , \9 {5 [3 J) e. X0 E) e6 U& Mused in determining positions of the points. , V/ J% K P/ e$ D( a) mTraverse Level That vertical displacement above low-level air defense systems, expressed both % S2 m9 r3 V7 w8 e4 Y# J* Las a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. TRD Technical Requirements Document. TRE Tactical Receive Equipment. [2 z; T/ _' m; t6 c8 r K7 rTREA Transmit/Receive Element Array (THAAD). 1 Z) R" J' [5 p8 sTREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. . t% B! b5 k, l- D/ ]; [TREPS See Thrusted Replicas. + ^7 k3 w$ _. E# d) V% @; B3 ]TRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 306 ' j7 X& n0 N8 k( V/ q6 y) WTRG Threat Reference Guide. D; ]7 N$ H+ nTRI-TAC Tri-Service Tactical Digital Communications System. % |5 P: P: H2 C* T. f4 C2 h( fTRIDENT Class of US ballistic missile submarines (USN term). , N& Y7 ?" l5 [2 O% ATRIDENT I (C-4) US SLBM (USN term). ! h" H9 X. v. w4 i2 D% @( D6 ?TRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. 7 D0 k `3 o7 B/ }$ B9 o! iTRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains ' P( W9 b* e" B- P* w2 Q8 Iadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission ) i* N0 H9 ^, j, f9 R" |: y0 Hperformance. TROPO Tropospheric Scatter. Tropopause 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 tropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to the tropopause, in which the temperature falls fairly regularly with increasing - ~% s5 w) I$ l/ t }$ Daltitude, clouds form, convection is active, and mixing is continuous and more or less complete. Tropospheric Scatter 4 U3 E5 D% O! `The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. 0 b% T3 w' y/ I9 J, TTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. " s0 P0 I) T: W+ ]TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. Trusted Computer System/Software 0 F$ N$ m: o/ F8 XA system or its software that employs sufficient hardware and software integrity , o7 H% P- @% C1 vmeasures to allow its use for processing sensitive or classified information. . Q) J1 S- n( O) b5 p/ Q; _; p# X/ ]Trusted Path A mechanism by which a person at a terminal can communicate directly with the 4 B% X4 G. f$ V, v8 ETrusted Computing Base. This mechanism can only be activated by the person 4 V2 V; N2 W) G3 L, ~: A0 f. e) y# O% Lof the Trusted Computing Base and cannot be imitated by un-trusted software. / r% [7 c* z, tTRW TRW, Inc. + ^4 ~/ d- [# }- pTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T , _5 T0 b7 `# W307 TSA Technology Security Analysis. 8 p9 U2 s) {& @ N( HTSD Tactical Surveillance Demonstration. 9 \2 L7 p/ ~- r- p) {6 q5 STSCM Tomahawk Strike Coordination Module (USN term). ( F* O: f' t: j( q# u2 o4 pTSD Tactical Surveillance Demonstration. 8 |# h# T0 n+ P9 j/ D' Q2 R; c9 eTSDE Tactical Surveillance Demonstration Enhancement. - W( |- Q9 |- d1 n, u) XTSEU Technology Seeker Evaluation Unit. ! S+ O4 g& z+ T4 qTsIAM Moscow’s Central Institute of Aviation Motors. ' e K( e/ n9 i7 o# [TSM TRADOC System Manager. TSMA Theater of Strategic Military Action. TSP Target Support Plan. TSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. 4 G% S: j3 ^" r0 g6 Q& z8 {: c% \TSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. / U8 R+ d+ X, _; B1 z/ sTSWG Target Signature Working Group. 4 [ ^/ T8 X3 X9 e' \TT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. 4 J# s( P- Z8 ~7 y1 V @5 d7 ~2 oTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, x) f) P+ m5 M5 u A1 d* uwhich have significant potential for improving testing. : S) B; x3 k" d/ t' iTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. n; K$ o/ h% K$ `5 `0 `; ?- f2 JTTT Test Technology Transfer. " k/ [$ A0 h) I, C4 s. }3 z9 kMDA GLOSSARY, VER. 4.0 T 308 4 y3 l1 I0 m# E: S2 hTTV Technology Test Vehicle. ; Y1 w( H" P( `' ATTY Teletype. TUG TRACE User Group. $ u' n R' \5 s# K* t0 \- X4 ?. BTV Thrust Vectoring (rocker engineering term). : F- V8 ~' x1 k. n- ATVC Thrust Vector Control. ( S) U8 r: |( V5 Z) mTVE Technology Validation Experiment. ) ^' M: _9 H2 I# T( |! H: ITVM Track-via-Missile. TVV Technology Validation Experiment. 3 a- m7 y `. zTW Tactical Warning. ! P9 K% i( B! jTW/AA See Tactical Warning/Attack Assessment. 2 b% \. ]4 N0 V4 l2 P: NTW/SD Tactical Warning and Space Defense. TWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). 6 K j( o0 |' a# @! k/ sTWT Traveling Wave Tube. T& B' _5 S. s" I( f5 A" fTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). TY Then Year (PPBS term). TY$M Then Year Dollars Millions. 8 Z5 Q) M! ]( YType A - System Specification 9 N9 A T" O2 r$ FStates all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical 0 a& W" b8 D$ F( n1 ~0 }+ g3 vconstraints are included. Type A specifications state the technical and mission |5 F' g6 H1 ]0 l% [0 a2 r* @5 W( O frequirements of the system as an entity. Type B - Development Specification States all necessary requirements in terms of performance. Essential physical # B) x7 f t2 |% b9 a0 mconstraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item - }- {1 \1 {; h. L$ w, ^functional characteristics and the tests required to demonstrate achievement of 0 d2 }' m1 o% @those characteristics. 9 G! U6 ~( G+ D1 [Type C - Product . K( B6 p' @; q0 n$ X* |4 x/ ?Specification . w8 L" A9 J& m, ~ u" I+ b2 GProduct specifications are applicable to any item below the system level, and 3 w; l" d0 P( k [may be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of items including computer programs. Typhoon Class of Soviet ballistic missile submarines. 4 `% H2 ]3 l6 q7 KTyping The act of recognizing objects by measuring a set of observables, computing a , E) ^; X, \ \/ K& Xset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 ; x4 p; x/ E' @: N( EU Uranium. # S' i( e1 I: a z' b4 G9 ^6 o; F0 K wU&S Unified and Specified [commands] (pre-1996 term). e2 Y( T& d, ^$ g( I/ NU.K (UK) United Kingdom. U.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. 8 i9 n7 [1 J9 CUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. UAV Unmanned Aerial Vehicle. 5 i$ w* W; n) W8 ^" w( E! fUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. ) L$ z$ U( F. @1 lUCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. * n! g9 D9 j9 T P8 P& {UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating ; d+ L0 i! a+ jand coordinating program requirements for testing MRTFB ranges, as well as the capabilities and plans of test ranges to support program requirements. It 0 I$ T) `8 y, k) R* q1 Cconsists of a series of six planning and execution documents: 10 are the : l3 b5 k9 K& `% c" M% Y/ p: kProgram Introduction (PI) (also called the Program Introduction Document (PID)), - L3 i! Z# {7 R' {5 \2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the - d' s! V) Y- l$ d; H; FOperations Directive (OD). The UDS was developed and is regulated by the 7 s" J7 d. X$ c- x4 L- SRange Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U ) I1 j3 q }" N; F: O! P0 Y; ]7 C* ~* z310 # Y" P3 B6 V, `+ ~4 T3 ~UFG User Focus Group. 3 e5 L( N4 X* pUFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. 2 S& D. t4 n0 ], lUGF Underground Facility. 3 @3 V9 i8 `$ ^9 Y) g9 b! i, DUGS Unattended Ground Sensors. UGT Under Ground Test. 4 J* K1 c5 `2 O p* x9 nUHF Ultra High Frequency. % Z: a% `- Q# j, `- |UIC Unit Identification Code. + r. C8 ^; c! c9 VUIN User Interaction Node. , g& P9 o6 ^% l' W8 w8 EUKAS (1) UK Architecture Study (2) UK Associate Studies. * b# z2 e8 `: o$ c3 sUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. 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). 1 a* z X' j, L, T! M PUMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). ( J% R: V+ |% {) GUNAAF Unified Action Armed Forces. UNC United Nations Command. Unconventional Warfare 2 I' U. ^. j9 F1 V' bA broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare ) a9 x; B! i- C) G* O) [5 D3 e- Pincludes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, ( C. T+ ~, w1 ]" t& Ocovert, or clandestine nature. Unified Action , a, q Q" {4 h% D f' YArmed Forces / f1 u8 J. z8 ]# [& ~/ P" kA publication setting forth the principles, doctrines, and functions governing the 8 c `' | ^9 C4 t- {; Jactivities and performance of the Armed Forces of the United States when two or more Services or elements thereof are acting together. 6 M* n! `% t, \2 q0 LUnified Command A command with a broad continuing mission under a single commander and # L+ [/ |3 ?: _1 O, @9 Scomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary - |* d1 `+ c1 ~- ] Dof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U ! G% c% ^7 e2 W" k( }311 UNISYS UNISYS Corporation. United States E$ q- K: V, T+ SArmy Space Command (USARSPACE) ; \2 g/ n+ Z5 q6 f. W# N' T3 u% oThe Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States . n6 D* E* [3 \Space Command (USSPACECOM) 2 ~4 C$ F' X, v) d; G* jThe unified command responsible for planning and conducting ballistic missile - G" _- T; o, _: d/ k0 a Mdefense. Located in Colorado Springs, CO. United States Strategic / b( L g0 M' k/ O! R) UCommand 7 l! h3 E4 J. w6 r* F(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic missile offensive combat strikes. Located at Offutt AFB, NE. United States : F: F' Z/ X8 d/ XTransportation ! H0 E6 Q, F2 X2 wCommand 6 C; J) D) [% Y( a(USTRANSCOM) The DoD unified command responsible for providing air, land, and sea , D# J3 K3 w4 B2 b! x" e9 mtransportation 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 terminal services, and commercial air, land, and sea transportation, including as 1 A) p% d* c3 P. Z% p9 Q! }! H3 a* tneeded to support the deployment, employment, and sustainment of U.S. forces on a global basis, as directed by the Secretary of Defense. Located at Scott - A$ B ^' ]/ V; [AFB, IL.

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Unk Unknown. ! Z5 V+ s, t* `* JUnresolved 4 X% @. r1 m S" y0 aObjects 1 C% _, M) }' G4 C- r2 w0 d8 [Objects so closely spaced with respect to the sensor focal plane as to be 0 G# C5 \" W5 k% G% t# @indistinguishable from a single object. ) U5 ?2 f) _2 L% l4 ^7 ?, l& _% BUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). , g1 W" y& u9 F6 nUOES See User Operational Evaluation System. ! J8 |& U: U0 O1 H) A7 vUPD Unconventional Passive Discrimination. 3 @$ \& I0 w/ b2 Q: ?* XUPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). 6 v1 w9 j4 F* a& H" qURIP University Research Initiative Support Program. / n! H4 e! {$ ^+ T/ yURL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. . M9 U* \2 `; x8 UUSA (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 * Y* k" a9 a! x, L312 USACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. ( H ?( @* `& O8 x9 ^USAF United States Air Force. 6 L* j3 ?& U, Q. P, ~& r( ]USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF $ Z* d, I. U) m7 R `( pSystems Command /SSD. USAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ) u- \% I+ N0 s5 I7 X0 H8 DUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. 4 z* f; Q6 h$ n! VUSAFLANT U.S. Air Force, U.S. Atlantic Command. & F7 I9 R0 r- b4 U: N CUSAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. " m4 G+ X N7 `- W# mUSAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. . q- |2 d6 t# J* y' t1 ~6 iUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. ( w1 G, |) h0 d# {( r2 N' M* cUSARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. 2 `/ ^+ A# v/ X8 ?$ y: kUSARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. 2 ?- R2 @2 f- f. P/ ~% j- L8 gUSASDC U.S. Army Strategic Defense Command (<1Oct 92). USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL 8 ]! K) u2 w0 X- h. dUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. ' i0 J. g* j' lUSC U.S. Code. 4 u, p2 a3 }# ?2 A0 mUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 ( }/ l$ D6 j4 r5 |3 HUSCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. . ^8 _; L# ~& Y1 O. Y- AUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. + v+ k3 l1 o8 E: N5 |; E% tUSCINCPAC Commander-in-Chief, U.S. Pacific Command. . z' ~! e. b3 t2 h& \USCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. ) W5 I: Y" v, K0 _USCS U.S. Customs Services. USD Under Secretary of Defense. / L" L5 P4 W. L; {2 EUSD(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. 9 V( P2 N9 q" B: e: Y/ _( f4 S+ DUSD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. ( [' X7 y e- q3 TUSDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. 1 L% U/ {6 ]7 g( f# D: kUSDR&E Under Secretary of Defense for Research and Engineering. User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine (hardware) or program (software) that is compatible with a person's ability to , x K- G5 a' J0 O6 u* \& V' i+ |% Doperate it successfully and easily. ( M/ f, @2 ]! l: C9 EUser Operational Evaluation " B! u- |& \* }System (UOES) . X7 a ~, Z$ L& G, nPrototypical system developed and tested as part of the early phases of the ' O$ n' x) z( t5 Vdevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the 7 O4 k T8 d" f5 |6 L( o0 Anormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ( i3 F9 O+ c5 F+ r; b& w7 S& d4 mUSFJ U.S. Forces Japan. USFK U.S. Forces Korea. 8 w. A3 u; f4 O; ^) L3 ~; PUSFK/CFC CSFK Combined Forces Command. 4 v1 ]: R! B7 s/ xUSG U.S. Government. ) l! A0 l+ J1 m8 E, `+ ~1 g) KUSIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 9 @7 y8 o" N% U' ?& H3 I314 USLANTCOM United States Atlantic Command (Now see USACOM). 7 P! I7 f# Y+ F% n$ }8 l6 EUSLANTFLT U.S. Atlantic Fleet. USMAR- FORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 5 k% c* }9 i& s' O+ JUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. f8 Y- G- M* S/ Y# |" Q5 TUSMC United States Marine Corps. $ H5 b, u3 F& b SUSMCR United States Marine Corps Reserve. 6 Z8 E9 Q$ a( ^2 v" [USMILREP U.S. Military Representative. " u$ k3 m& d) a: Y9 y4 ?. r3 HUSN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. ; D x" j) G' H8 A' S; C# gUSNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. 6 o9 V t6 V, d9 YUSPACFLT US Pacific Fleet. ( L. k) r) ?4 Q& G( IUSPACOM United States Pacific Command, Pearl Harbor, HI. 2 h3 f# A* J3 Z! [9 m& L" t/ eUSREPMC U.S. Representative to the Military Committee (NATO). 6 s) Q, w# V; q0 I* d; N) S$ c8 DUSSC United States Space Command. 6 J9 @6 S1 g: L4 q* {USSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. 7 t; l+ N) C5 j- eUSSS United States Secret Service. ' b$ w7 P; \9 N" v6 TUSSTRATCOM See United States Strategic Command. USTA United States Telephone Association. + O' Z3 U* P z4 ^USTRANSCOM See United States Transportation Command. - H1 ^9 b" \+ r* z) WUT Universal Time. 6 P1 `+ j/ D4 \UTC Unit Type Code. 4 P% h: \: F9 e4 BMDA GLOSSARY, VER. 4.0 U 2 c# C6 i' w: L: r* J4 f# Y* |; p315 UTM Universal Transverse Mercator. 7 M/ z9 ]7 q- T( fUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. 1 S! A! ?: W2 {( ?: P cUUT Unit Under Test (ILS term). UV Ultraviolet. 4 G$ N/ H- Z! {. ~' z$ mUV Electro- Optics " \& ^6 E; u. D8 [8 [9 s0 n+ ~9 QTechnologies/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. ; |( p1 j- b, s IMDA GLOSSARY, VER. 4.0 V 316 , P0 _5 v0 S) ~+ T9 RV Volt. 3 W; m: A6 c, y. X$ K# UV&H Vulnerability and Hardening. 4 a' U% G8 R0 V4 \/ \V&V Verification and Validation. (See Verification, Validation, and IV&V.) # U( x+ K, I( S) |. \0 U' HV/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. " r+ T: h; v" V" Q$ \Validation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, 8 I3 C3 L5 e/ J Wtactical situation, system design, tactics, and threat. 8 n; x, z9 E; B8 V; N3 D) ^: rVAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. , Z* ]* z, V* w) m2 m+ h* ?9 hVariability The manner in which the probability of damage to a specific target decreases 6 |: P! L/ Y, r H- Wwith the distance from ground zero; or, in damage assessment, a mathematical 9 ~7 H2 m- l" O3 Bfactor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. * Z: `# K, M6 X q( @$ JVBO Vertical Burn-Out (velocity). , f. u2 Q1 m$ t! \6 R9 y- @VCC Voice Communications Circuit. 6 N" L1 |* |$ R3 D% e! {2 BVCRM Verification Cross Reference Matrix. VCS Voice Communications System. 3 f% `$ ^% l' T' L1 J3 _, X4 p/ nVDC Volts Direct Current. VDD Version Description Document. 2 }6 f7 d" w3 l( x; ?+ cVDU Visual Display Unit. - u: o0 d" t$ f: U! l F/ XVE Value Engineering. 8 v* `8 ^8 |! Q9 N: j3 [2 m& rVECP Value Engineering Change Proposal. ) x4 o9 J, W9 ^ U X: }( {Verification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, : I$ h) u0 O- j7 A; V% ncalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified requirements. 6 G2 a" f- L$ _$ cVESA Video Electronics Standards Association. VFR Visual Flight Rules. # ?2 u o4 v/ h$ ~$ R" W/ c! b) t9 b) oVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. 5 `$ h% l2 {5 L3 L% u3 Q/ KMDA GLOSSARY, VER. 4.0 V 317 4 l, H# ~4 d; fVIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D " E* P9 C: A6 j2 K( Q4 b- p7 ~Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a gimbaled 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. + Y8 l- t; c. E# H w* EVIM Vibration Isolation Module. * h% m9 M& ]/ C" C- \VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. ' f+ T$ G: D8 M7 G; K. EVIS/UV Visible/Ultraviolet. 4 D- p0 u& E& {6 b8 zVisibility Range (or Visibility) 3 F9 v2 M. ?. D9 [' o8 I+ a8 C1 @The horizontal distance (in kilometers or miles) at which a large dark object can just 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 , q/ r# _8 X0 l8 c! C% z/ lexceptionally 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 kilometers). Visible Electro- ! ~) b* h2 ~% E `/ y4 O }+ eOptics Technologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. % a; @+ [, {6 P! I! x$ ]9 V0 `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. : K7 b2 v, b# }. x: q6 tVLSI Very Large Scale Integration. VLSIC VLSI Circuits. % }( V. z- u& h$ c3 w$ |+ fVLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). ! E4 X4 E# G& xVOX Voice Actuation. `4 l2 z6 V# M$ n" F3 h: CVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. : m) `" u p/ J3 g) u* qVTOL Vertical Takeoff and Landing [aircraft]. , |! r# v) E; X8 WVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. 1 Y3 w* C* A1 ^! o( Z1 s3 MMDA GLOSSARY, VER. 4.0 V 318 ! y$ l; `$ }3 c( kVulcan UK bomber. ! Z5 Y3 v9 I- QVV&A Verification, Validation, and Accreditation. : Q, E# M* N9 D N# xVVER Pressurized water type nuclear power reactor. # N. h: o8 P+ ~; `8 R6 x- u. `1 zVVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W 319 W/ With. ) T1 R5 v' u1 ?! Z2 pw/o Without. W/TD Warning/Threat Detection. , I& d3 K8 l3 Y6 S7 B% q; o2 X- A# xWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. : M7 M3 C% f( O2 `$ HWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area # H. C$ L- |+ l1 _Munition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). ; q% H% v* d5 K/ [/ t$ B) _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. ) H5 G& k4 t8 c3 K2 v! LWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the . k. c. a" ?4 {JNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. 4 j# [* Q- ]3 }$ q( B. WWarhead Section A completely assembled warhead including appropriate skin sections and related components. 2 c& G, C/ W/ D! ^) l' a) w: J; UWARM Wartime Reserve Modes. / C: o; X; J: m/ V" {: l4 z1 P& O& FWarning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. % d3 Y) s( v$ S" O! X$ [; _1 FWARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve $ O9 b' u- `! bModes (WARM) Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will / X( y( p! d) \+ i& tcontribute to military effectiveness if unknown to or misunderstood by opposing 7 C+ _9 N; K& X2 H) b3 Ecommanders before they are used, but (2) could be exploited or neutralized if known 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. WAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. / g$ _) U9 H, R' g0 J3 _MDA GLOSSARY, VER. 4.0 W / v7 }) Y$ p/ V; I320 WASHDC Washington, District of Columbia. 1 L0 ^: |( c$ c( f9 O0 h8 L0 Q; }Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. Watch Condition ) ~3 B* W3 X$ n(WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. % L J% v- ]0 W0 K9 h e, V. m {WATS Wide Area Telephone System. # d( R/ n# h/ I% D+ ^1 VWAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation. ) K, O" g* ]# Z1 J' jWB Wideband. # Z& M. y3 f. K( {, S& QWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. 6 P$ c& s: p- \% J9 L M% w! [; ]WCC (1) See Wing Control Center. (2) Weapons Control Computer. ) y/ v4 G# a* K0 ]4 U% u5 l, ~WCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. + P+ z! \" ]+ D8 JWDM Wavelength Division Multiplexon. 4 @- [' ~/ Z+ o$ q2 rWeapon Enabling The set of control functions without which defense weapons cannot be 3 n- N) q! t2 E+ \launched.