航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 Theater Missile Defense Council (TMDC) 6 {& a7 \) ?6 J. e/ b. F. CA consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for & n2 M4 F- h$ _3 gAcquisition/TMD, membership includes MDA TMD Directors, representatives of 7 U7 T! |: T3 ]; o m: ueach applicable Service Program Executive Officer, and TMD Executive Agents 5 P4 ]- Y1 w/ s4 G. Sand Program Managers. Theater High Altitude Area ' `4 t9 [ s" c2 DDefense System # L1 Z5 p/ H3 ~# R9 {3 x(THAAD) ^5 e* P- r1 _1 HA ground-based, air transportable interceptor system that will provide wide area defense 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. Theater Missile (TM) ! S: U/ R2 H! dA 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 R/ X/ {1 Q( n* P: rof attacking targets in a theater. Theater Missile Defense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area / _4 U* t5 d+ L* {/ `3 O2 youtside the continental United States against attack from short-range, ) ?: l0 ?7 Y2 Z: P2 B3 Rintermediate-range, or medium-range ballistic missiles. Theater Missile 6 u2 A8 b* T8 f+ c" ~- h7 B, |9 ODefense Ground- ' A1 }3 `0 d/ B& J7 S8 @Based Radar (TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and " k; G; ]; J6 }; |& X9 I, e W6 Xdiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. 4 c1 w# |& `- V- `* |+ X+ DTheater Missile Defense Initiative * M4 s6 C; z% B0 }9 N8 u; l(TMDI) An initiative under which all DoD theater and tactical missile defense activities are 9 a5 T, x8 |* N! g; O7 _7 L$ bcarried 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. 7 Q( r9 t( J+ ?5 n, J' O7 T( hTHEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of 9 v% l* i" p& k" w" uthermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. % P2 K2 ^) o0 zThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected 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. Thermal Management 8 _& j; u. K: UTechnologies/techniques associated with the control and management of 8 T2 }* T& z9 t$ [$ N2 h% i! Vthermal energy, its generation, dissipation, and recovery. Thermal 0 S- b6 b% s+ M4 h9 K- v" M9 PRadiation : P; o( u7 t5 H1 z4 b& m( o, hElectromagnetic radiation emitted (in two pulses from a nuclear air burst) from the ! Q5 @. z$ V! a* @( Gfireball as a consequence of its very high temperature; it consists essentially of ! v2 [1 J! @' i+ d9 }. fultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, - I @# v4 |1 t. |emitted by the nuclear weapon residue by virtue of its extremely high . m6 F- k: D( v7 F' P0 Dtemperature; 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 * g/ |: d. ?$ p, n* ^- u: [in temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; - I7 {; `0 F! e6 Zit is a region of more or less steadily increasing temperature with height, starting 2 D7 f" n6 a/ n9 N- C: L, }' u' K' dat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. ( z1 z- ?6 A& j+ o- F9 E( `& tThreat 1 _- n: k# e0 p5 jCharacterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor (Threat Tube) / ~! W t e6 C3 S0 C/ @4 N2 |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 / q* d( }" M& P) S- O$ Btrajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic 4 ^2 n3 I$ R; l5 G }" Pmissile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. - A: G: O& G9 {Threshold Performance capability or characteristic level in terms of a minimum acceptable 5 T/ }4 U: h% {- R7 Rvalue (threshold) required to satisfy the mission need and a performance objective. - L* C* e8 J' |2 H! hThreshold $ O4 K. F$ S5 v7 g hDefense A defense strategy that concedes that the target can be destroyed at a price T2 k' e% K* c6 fthat is not prohibitive, but the presence of the defense is thought to require the offense to mount a relatively large and complex attack. & O4 T" x; S1 I7 AThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted Replicas (TREPS) Conical 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 phase. - T- y: `8 H* `# VTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. - ^0 V2 U. ? Y, ~(2) Tactical Information Broadcast System. " L- ^6 O0 [* F(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. - h( P' F# f( R6 v( O! _% |: ^TIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat 7 t; g0 ?7 U" N* @7 n( E8 h(e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. 7 @/ u$ j. L- Z9 w. V$ _+ LTIIAP Telecommunications and Information Infrastructure Assistance Program. * x( o) m2 x1 x, QTIL Technical Insertion Laboratory. 3 @; Y. w6 Y+ f6 w" cTIM Technical Interchange Meeting. , Y" G H. M! S, H' R% ~: M2 sMDA GLOSSARY, VER. 4.0 T 300 - \7 _% c9 E2 z# y$ H l7 g+ FTime-Phased 1 P8 v' r# J9 Q+ T1 M) ZForce and % Z+ m* V$ f, a; KDeployment List 6 }& b9 \/ o: @4 c2 e7 D- DAppendix 1 to Annex A of the operation plan. It identifies types and/or actual 3 r( o& Z: Z7 y c6 _units required to support the operation plan and indicates origin and ports of 8 \( D; D {+ x% idebarkation or ocean area. \, I: ~$ U% }$ x4 \) ZTime of Flight 4 o- b- i/ r7 M! P" z(Max) The maximum time for a booster or vehicle to perform its function from time of : U2 a- C6 V6 Y# U A3 N R: Glaunch. Time on Station The time the sensor is in its operating position. " i' L) v6 H5 b; c7 R+ m3 M5 ETime Sensitive * }6 H+ F7 J7 V: A- Y% L. PTargets 2 }1 ?$ C4 {: m+ JThose target requiring immediate response because they pose (or will soon 3 k6 p. b \& I' i8 l; l Jpose) a clear and present danger to friendly forces or are highly lucrative, 5 i0 r& i/ f5 L. ?# y! lfleeting 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. . |8 P, E1 }/ iTIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar + u$ m, e b" e2 E6 {Terminal (GBRT).) : S" i. m5 D( s. ] a6 [TIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. 2 f: |7 D8 V; rTIWG Test Integration Working Group. (U.S. Army) ! b% M, ~. ]" d7 O0 w# [) HTL Team Leader. TLA Time Line Analysis. " n e- i \5 k" jTLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. $ T8 L1 e0 C0 z: B7 a: NTLV Target Launch Vehicle. ; v/ d( O) x7 N& |- ?TLX Teletype. 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. 1 i/ t1 F% e5 i# h& A) JTMD C2 Theater Missile Defense Command and Control. 7 u8 V7 V8 b; B. O8 ~MDA GLOSSARY, VER. 4.0 T 301 & G! L6 O2 Q6 ^6 Q) e& ]! `TMD C ! T* Y/ B4 `; J1 ?' e3 I Those assets that provide connectivity between and among Theater Ballistic 1 X4 ]8 K0 \% @8 H; A! E2 r( oMissile Defense forces. ' A6 n6 _+ ^5 j W1 sTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). * S! b) k. p+ [TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). . c7 E9 g3 }$ p% XTMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. 3 a6 y6 _6 z. y( mTMDAS Theater Missile Defense Architecture Study. $ Z( U8 |) \5 v) B% [% OTMDC Theater Missile Defense Council. # C" [& s0 K1 \: h. C' S: \TMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. . j$ R0 a; ]6 c5 uTMDSE Theater Missile Defense System Exerciser. ( [/ W' l& d8 |3 a, \1 `, kTMMM 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. 9 z3 E; F0 l1 [" x3 aTNF Theater Nuclear Forces [Treaty term]. " V9 J2 I- ]/ n& e) E+ a! \7 kTNT Trinitrotoluene. 3 g' ^6 U2 O; m& O6 sTNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. " n& G- G6 a: s" c0 U7 N4 m0 }+ HTOA Total Obligation Authority. ( h: g# K% h( |+ f* J7 [! r6 UTOAM Tactical Air Operations Module. TOC Tactical Operations Center. 5 F4 q# T4 M1 `: }TOE Table of Organization and Equipment. TOF Time of Flight. 0 U h1 \4 Z k3 G1 [TOI Track of Interest. ( p' {/ `6 Z& O3 |" BTOIA Task Order Impact Analysis. % L) T4 N8 F. y$ I9 YTolerance The ability of a system to provide continuity of operation under various abnormal conditions. % n4 _. x! X8 {1 u& P& [TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 1 s: T/ O0 G" p) }- r- |5 V* ZTOMD Task Radar Management Details. 1 d+ W/ ]3 C) Y3 t* o KTOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. 7 Z [! ~7 y# q. g P; C; p* K9 u8 VTOP Task Order Plan. 4 k( c1 e) H& D; F5 }1 oTop-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. ( ]* x$ a& R& T9 O |9 D* @Top-Down Design The process of designing a system by identifying its major components, 9 _7 o4 r( a3 @/ {% W$ L- k8 g$ ddecomposing them into their lower level components, and iterating until the desired level of detail is achieved. - {2 g7 R+ |7 v( I# a% [Top-Down Testing ' E0 u) K2 {7 I- NThe process of checking out hierarchically organized programs, progressively, 2 S* B z$ c7 Xfrom top to bottom, using simulation of lower level components. ! i# A7 {/ g8 W! cTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power . f0 p; l1 N! o% Q0 V; p1 ^technology to U.S. BMD applications. 5 N! |3 M8 P4 _" G! BTOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target 7 p. `. g, J( D) O# y2 U/ PTotal Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given % d/ \2 Z; Z: S/ J! dfiscal year. - \- a4 b" }: F B( K$ I% ~Total Quality , H( o8 \4 ^4 V) GManagement (TQM) A management philosophy committed to a focus on continuous improvement to 5 X5 t: a- n2 d Qproduct and services with the involvement of the entire workforce. % f6 B; G5 _% L8 ?9 l( WTOTS Target Oriented Tracking System TOVS 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. : A; K# I$ t q6 O8 Z; ]TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. 3 P* a" k, k: Z; Z" FTPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. 2 {6 p; }6 T5 \7 {8 A6 |TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). 0 Z. t5 |5 X+ w6 t* wMDA GLOSSARY, VER. 4.0 T 303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). ' k4 p: i" `# T, k( G+ U5 M4 DTPFDD Time-Phased Force Deployment Data. & b/ z" p% w- |- o' c* }. l& }TPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. / c: y) ^0 d, @+ xTPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). 6 \5 ` z3 f3 i4 oTPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. 0 d0 |7 }1 N( o/ j! c7 nTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target " W+ z: T* T/ e" U4 l$ [4 SPerformance Report. TPS Thermal Protection System. 5 c' | u/ T' qTPT Theater Planning Tool. 2 M3 r/ Q/ ^7 t' s% f3 ]* P/ O; U* cTPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or : A; K4 u5 D4 B) g1 Ndomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and constraints. + b( E# U' S$ ]6 W t8 g(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. 6 U4 k& b8 @% j3 @/ X% J! f(2) To display or record the successive positions of a moving object. 6 {4 @0 f, O$ m& c2 a1 P(3) To lock onto a point of radiation and obtain guidance from. 1 B3 Q3 B' E% g6 o(4) To keep a gun properly aimed, or to point continuously a target locating 0 U+ s2 w9 s* k D! Pinstrument at a moving target. 8 m6 }& K- G. [! p8 W$ V' z(5) The actual path of an aircraft above, or a ship on, the surface of the / w' l7 D# X1 a. m! f0 Nearth. Track 3 E- W _# p3 u- L2 y6 hAssessment The Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. ( S/ v; ^. Y/ F4 n) BTrack, Birth to ; X2 I+ Q7 R2 k- TDeath " S7 W0 F. K' B6 cThe maintenance of an associated track through all phases of flight (i.e., boost to reentry). 1 D" l3 C0 \* d2 ]- }* F% t% l' xTrack Correlation The combining of track information for identification purposes, using all available data. * c3 \ F: [6 c# g! F- Q& eTrack Extension This term usually applies to improvements in track estimates by use of new data. 1 n( k* Q5 k; l: ?+ t4 t# A, m& {" VIt is sometimes used to describe a process of target extrapolation to a future time Z+ R- ~$ c) P" xor place (e.g., reentry). $ f! H5 ~% U) G: }2 MMDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS 5 f9 G! O$ J8 W$ }) O: Mmeasurements with irradiances with confidence of association; or some subset of the above. Track File-Track 2 |" J0 O7 L: G5 E2 aHistory : _9 f$ M4 t: |9 ^3 MA 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 three-step process of data association, track initialization, and track improvement ' _9 v5 k3 X5 ?& y' Lby filtering. Tracking The act of generating and maintaining a time history of an object's position and # G0 W. C) P* `8 @7 ?! L& y0 V/ bany other features of interest. 9 [. x4 |0 W: S1 X) M- ATracking and Pointing ; @; ` R5 J; N" SOnce 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 7 Q1 W* u8 a. b7 q2 \& f9 S* h3 ^! E& bare frequently integrated operations. " P( j4 E: |, k$ ^5 e2 LTracking Range 1 u! C8 H3 y) d; q1 m( N(Max) The maximum line of sight distance at which a sensor can maintain track of an 1 i1 Y0 b4 D1 @. \+ u# y% Oobject. % d. R0 V s; OTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector 9 j$ X5 _8 n0 Q+ H6 G Rof an object. The process typically requires observation from a number of 4 ?8 Y5 Y/ d) G1 F Zframes. Track Production Area An 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. , L( X# Z" }; A/ z& m- p0 X3 Y9 ~$ v9 t, ?Track Telling The process of communicating air surveillance and tactical data information + A5 w# ]# U J6 W8 {1 ]between command and control systems or between facilities within the systems. $ U5 x: P2 `5 E7 TTelling may be classified into the following types: back tell; cross tell; forward tell; 6 k% y; o/ q& [9 u2 d4 flateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. 7 g0 T1 o; m, ^6 E+ e5 h1 mTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability Maximum 5 W( z7 J2 X% Z5 W- V- [The maximum number of objects per unit time which the sensor system can # g9 t% m/ c2 G/ h! E/ C2 s& v7 K/ {maintain track files. " f) l6 R8 p/ W! W( d6 Z0 w9 xTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. Train 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. 2 B, L8 T [9 _7 u- kTrajectory Histories / B: X- g7 b* V* Y1 XTrajectory information on targets recorded over a period of time. & x$ f$ E: F( L$ L0 N, E, U2 ]# q( ?TRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. - k ] T# B; I& m7 L6 ]& e3 NMDA GLOSSARY, VER. 4.0 T 2 W0 K. v- d$ G- O3 B4 t305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. ' |( Y- }+ @" M' J" z6 S1 b9 S fTRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to ! n6 F2 x4 v1 RProduction 7 ^) X+ U) s7 ^2 C0 UA risk reduction process during which the program shifts (passes) from + ]& W; T- @9 u: Bdevelopment to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ) }* _" x% x+ `7 s1 Oensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission Security # Z' T5 R; ~* A, K' \4 E(TRANSEC) : w3 \9 `/ o, f! tThat component of security, which results from all measures, designed to protect - i8 J+ b F5 e! g4 s$ _9 Pcommunications 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 speed of the fluid is subsonic in some places and supersonic in others. This is 6 t: O& u1 e" wencountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. # s+ s5 Z. t4 i' ^% p9 n3 [TRAP Tactical Receiver and Related Applications. / s+ ^% Z) w9 a& mTrap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. ' Q4 M; W$ x; G& YTraveling Wave 0 `; e. }8 f. o2 i3 {$ q( HTube (TWT) 2 s) m% w1 T4 H. O: @An electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in # Q5 I' Q5 L6 y' r! k. Isynchronism 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. Traverse (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 points on the earth are obtained by or from field measurements, and used in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both as a height and altitude, at which aircraft can cross the area. : M' e7 N5 d( Z& BTRB Tactical Review Board. ' H% [# A# m9 Y- O" m8 J8 aTRD Technical Requirements Document. % u1 W7 ~) }, A! U& O/ TTRE Tactical Receive Equipment. TREA Transmit/Receive Element Array (THAAD). 6 F+ w9 Q9 S3 g8 p$ ?: g+ }TREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 306 TRG Threat Reference Guide. 9 S& k ]! O' j O* D+ T" @TRI-TAC Tri-Service Tactical Digital Communications System. 3 }. M+ E3 c( n: ~. |TRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). 6 T- t! h5 h* h7 ], A, \9 _& uTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. ) ~9 V! h( S5 X* _/ r. p9 F* DTRM Technical Reference Model. TRMP Test Resources Management Plan. 7 d3 X2 U7 N# m4 d7 i5 L4 [TRN (1) Task Requirements Notice. (2) Test Requirements Notification. & w1 D3 P! o5 p6 R5 STrojan Horse A computer program with an apparently or actually useful function that contains ( O* ]! H$ A9 k/ `) |additional (hidden) functions that surreptitiously exploit the legitimate 4 c8 D3 b& A0 E% ?; m! eauthorizations of the invoking process to the detriment of security or mission % P$ g. v7 W: G6 J1 \ rperformance. - H- h- O5 g7 D: H" m ZTROPO Tropospheric Scatter. e) w4 \/ L: i. NTropopause The imaginary boundary layer dividing the stratosphere from the lower part of the 3 W+ \3 {- G6 J* _atmosphere, the troposphere. The tropopause normally occurs at an altitude of 0 s7 Z6 J" M3 y- y' \( Eabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the / A2 c0 t" `" D7 W4 F2 Q: `8 mtropics. (See Stratosphere, Troposphere.) % s4 I+ }' }2 P! U8 g/ DTroposphere 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 altitude, clouds form, convection is active, and mixing is continuous and more or 3 Q9 ?# I6 h# s) g" L* Kless complete. Tropospheric Scatter The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. 8 a1 e( j4 h& }! O! j4 `6 t6 J2 f(3) Technology Readiness Program (pre-acquisition program status). ) a H' c0 r" Q" j; h* j9 Q(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. 7 W3 D. {6 O" F' p/ JTRR Test Readiness Review. ; L$ a: s1 ?. L( R% E* t- l4 U3 wTrusted Computer System/Software s/ J# g% u! M3 J0 l+ ?9 ~' nA system or its software that employs sufficient hardware and software integrity 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 7 ?; A5 P- ?' N2 M) wof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. % m- A" e+ u. m7 n1 P4 d6 cMDA GLOSSARY, VER. 4.0 T * E+ S5 q, a. O/ w6 E307 TSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. x1 T; s; ?( |! ^: VTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. - G: o% B/ D( P2 x9 XTSM TRADOC System Manager. 1 u. H1 j/ R# o9 Q) w7 y0 jTSMA Theater of Strategic Military Action. * E6 a* k& z- t2 W* lTSP Target Support Plan. 7 l; N8 r, M, I! cTSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. - h9 l5 e2 r; KTSS Terminal Surveillance Sensor. 8 ~5 u8 ^6 _2 i( KTSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). % q7 `# r/ a6 Y& NTTA Total Time Accounting. TTBM Terminal Tier Battle Manager. 0 F+ y5 y2 ?3 b- p r) tTTBT Threshold Test Ban Treaty. ) Z1 p/ E4 [, f& d# ]TTD&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. TTEL 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. * f9 C4 ~' B5 l( D$ }; B* k" yTTT Test Technology Transfer. 2 H- l; ?6 v% J; t. A0 T7 o3 V! {9 v4 TMDA GLOSSARY, VER. 4.0 T 308 TTV Technology Test Vehicle. TTY Teletype. & @* f: D d' b G! F/ @- v' L2 STUG TRACE User Group. % L' B7 i( Y! n/ p" C3 S, ]) eTV Thrust Vectoring (rocker engineering term). 3 N" p' q" |( x d( tTVC Thrust Vector Control. e8 b% S+ [6 Q" }2 z1 D4 N3 UTVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. TW Tactical Warning. & o M7 F; W7 O5 ?( ^" \TW/AA See Tactical Warning/Attack Assessment. , Z& k5 U! Y* x& r8 ~7 S$ J& [TW/SD Tactical Warning and Space Defense. TWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 0 R2 e9 h6 x( |( G+ k, w, }6 \9 CTY Then Year (PPBS term). TY$M Then Year Dollars Millions. Type A - System Specification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical 5 _5 \. I8 M/ N/ m8 |! qconstraints are included. Type A specifications state the technical and mission : p; K/ Z4 D! b' m/ q$ _requirements of the system as an entity. Type B - ; i6 c3 Y7 N" O+ UDevelopment ! Y: V& l; {% Z. \1 ZSpecification * ^5 _# O& ^5 I7 f0 Y# ZStates all necessary requirements in terms of performance. Essential physical 2 r9 h: \& s* b8 Vconstraints 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 7 h& `7 n& l- U4 V8 l, |" ?1 j2 Tthose characteristics. Type C - Product 9 b4 `& ?$ _4 iSpecification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of 8 R$ B& Q0 {3 y( V0 lprimarily function (performance) requirements or fabrication (detailed design) 0 }7 B2 X& D/ u% U/ X3 Vrequirements. Type C specifications intended to be used for the procurement of $ m, @) Z% E. o5 E2 J* G) d" V6 n; Pitems including computer programs. * [. P* f& X/ \. z+ m7 r; `Typhoon Class of Soviet ballistic missile submarines. / L) q7 B) {& e F F: ]' \Typing The act of recognizing objects by measuring a set of observables, computing a % q8 h N8 }- g& @9 i' \+ \+ Zset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). 2 x" y# v7 ]; y( {MDA GLOSSARY, VER. 4.0 U 309 $ u' E$ z* M8 G) |* RU Uranium. U&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. 0 \8 w. K# X7 p( l* J' o+ VU.S. (US) United States. U.S. West U.S. West Incorporated. 7 T: Q8 }) C( l# L0 @/ r; hU.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. ) |* p2 Y# Z/ M6 O- k4 L- FUAV Unmanned Aerial Vehicle. & w4 o' { x1 `3 A4 B6 T# |UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. 6 o3 c. s! Q7 n" V5 {' _; NUD/ASD United Defense/Armaments Systems Division. / L4 T$ @2 K. }" E5 SUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). $ P$ z g2 ^ L; _UDS Universal Documentation System. A standardized comprehensive tool for stating and coordinating program requirements for testing MRTFB ranges, as well as the - J) h& f- Y- d0 v/ ~1 S/ M1 acapabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the " r9 p5 W+ ]2 R! s) X) nOperations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. 4 z9 r+ a; U" C' h9 Y$ ?+ K$ `' bUEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. # [( e( }7 _* b% q* ^) dUF4 Uranium tetra fluoride. ! e# X; W5 @, Q* OUF6 Uranium hexafluoride. / {" ^; ^- X4 rMDA GLOSSARY, VER. 4.0 U 310 6 X+ O; C2 ^/ F% T& m1 t" m' OUFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. UGF Underground Facility. $ e8 R& U) W- W& C8 g0 bUGS Unattended Ground Sensors. 0 F+ i6 B2 s0 E1 w% ?UGT Under Ground Test. ' e P7 O t- G$ D' K; q, @: kUHF Ultra High Frequency. ) a3 r8 f5 s i U% A" OUIC Unit Identification Code. 1 i( Q0 h5 f2 m E1 QUIN User Interaction Node. * ^2 C+ T* x! B1 t( z$ HUKAS (1) UK Architecture Study (2) UK Associate Studies. , c. g$ W! u* p. a" q' c2 SUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. * k* H5 N' V5 P' hULSA Ultra Low Sidebobe Antenna. 5 v' \% d9 J* O! x3 gULTDS 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). UMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). 2 G8 Z3 u3 f" ~% `+ k; NUNAAF Unified Action Armed Forces. : @7 b3 }- w+ ?2 G1 }' ?: t9 i5 J: |UNC United Nations Command. Unconventional Warfare 3 R& s+ _( w0 ~" q9 o0 hA broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare 6 p" ^( S# Z6 q% v3 e/ Iincludes, but is not limited to, the interrelated fields of guerrilla warfare, evasion . r. v# ~( d, u% D7 iand escape, subversion, sabotage, and other operations of a low visibility, ' Z# G s% S' D, Z; u- V5 X- scovert, or clandestine nature. ! D" N! _% \+ i! a1 _# ZUnified Action Armed Forces / W" f7 f; h+ E NA publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or 7 q9 i4 V8 T2 I; Ymore Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary ' e1 T8 G" g3 I( [& lof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U ; g7 @% ~! ~" L/ p311 7 i: y. y( }. U# R$ a& U& FUNISYS UNISYS Corporation. ! H h7 g& a4 n2 ?United States Army Space Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army $ _3 U% }2 X3 `8 H( i: e3 Yelements of the SDS system. Located in Colorado Springs, CO. United States : R0 c: |, z+ U& {" ~! L/ MSpace Command (USSPACECOM) The unified command responsible for planning and conducting ballistic missile % _+ Z8 U3 I% ?1 B2 F! B. ydefense. Located in Colorado Springs, CO. , ~! |1 t( {( F; f! t. r: p' f: iUnited States $ S8 t4 ?( k9 R5 _' bStrategic . N) B6 G6 T& q# I% BCommand 8 ]8 p- R; M: R6 H(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic ) C- S, I9 ~5 T( M7 g$ w4 [' A$ pmissile offensive combat strikes. Located at Offutt AFB, NE. United States Transportation Command 2 n, Q2 p) e3 o8 l- v(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 terminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces + b& U8 e1 G( O/ v7 ?: \! Von a global basis, as directed by the Secretary of Defense. Located at Scott 8 e% ^; n9 N9 i9 }- o8 R- GAFB, IL.

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Unk Unknown. Unresolved ! L- u& B0 k/ {# }) I% @# l5 _Objects % Y1 L0 T/ Z. i7 g( M4 ]# V$ uObjects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. / x" m8 E; b w, |UNSC United Nations Security Council. , _2 ?3 i7 P4 f: E& e2 G WUnSecEnergy Under Secretary of Energy. , O& n1 g. I: u' r+ G- n$ jUOC Usable on Code (ILS term). UOES See User Operational Evaluation System. 2 |8 k$ P2 k( ]9 l1 t- xUPD Unconventional Passive Discrimination. , [$ ?7 ~' A) b% @: ]( i, u3 ?5 WUPS Uninterruptible Power Source. ! w* H' O' i' M' kUQT Unit Qualification Training (ILS term). - l9 d( \: N: ZURIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). / c' F& A2 R6 X8 OURT Upgraded RTD. US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. * F: T% O1 p% H0 M' [USAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U ) @' M2 D2 ?+ L; u; x312 2 G; n3 M1 c' o6 g# sUSACE United States Army Corps of Engineers. 9 L/ ~& {$ g: iUSACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. 8 a8 |! ^% V/ e0 B- A- Z. EUSAF/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 5 r7 H0 _7 z+ ^Systems Command /SSD. USAF/OTEC U.S. Air Force Operational Test and Evaluation Center. USAF/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. 1 g. X& W- I$ E) k: TUSAFLANT U.S. Air Force, U.S. Atlantic Command. ) ?; X4 V# i5 DUSAKA U.S. Army Kwajalein Atoll. # L$ `5 f2 M4 D$ aUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. . ]9 W: m" s" Q( U' ^) MUSAMSIC See MSIC. 2 S* G- j# Y$ V) S2 l8 NUSAMSAA U.S. Army Materiel Systems Analysis Activity. . D# `+ {4 M3 u8 k0 T5 zUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. 1 L8 j8 t' Z$ F+ _- o! W, QUSAREUR U.S. Army Forces, U.S. European Command. 1 W5 q, V1 c+ b: yUSARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. USASDC 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. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. ) @4 }% ^3 R7 Y" O3 {, U9 xUSC U.S. Code. ) C( ^ m$ T2 y) c3 _1 H, eUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 ; d0 `2 g1 ?2 l, HUSCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. 1 [6 f0 }. b1 M# T, x) \USCINCEUR U.S. Commander in Chief, Europe. : R( a+ a6 ]4 G, _! j/ t% ?USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. . G8 d+ D* Q% s8 e; y' UUSCINCSPACE Commander-in-Chief, U.S. Space Command. & |# e3 _8 \. YUSCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. USD Under Secretary of Defense. ; V1 d0 [: A) O/ }% EUSD(A&T) Undersecretary of Defense (Acquisition and Technology). 9 [4 E% b+ \* g& o/ V7 M' KUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. O- {: r! |7 X7 \2 D1 d# |$ OUSD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. + y* o- ?. g; I' a1 B4 ?USDELMC U.S. Delegation to the NATO Military Committee. - ~* C% v0 U! q; e+ M3 I: zUSDR&E Under Secretary of Defense for Research and Engineering. User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine 2 d7 j9 Z+ o2 v S+ h(hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational Evaluation 2 i, c. Q x" B" u+ iSystem (UOES) Prototypical system developed and tested as part of the early phases of the 7 e; O! @" X/ V' G8 |5 F, Tdevelopment 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 9 o1 N0 h! C0 }3 ?4 onormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. T1 E) r+ i3 fUSFJ U.S. Forces Japan. . A: E4 ~% N" m% [& M7 x! J) XUSFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. USG U.S. Government. 2 @) a- y# L+ }: j4 GUSIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U # Q8 {& _6 \" k$ z314 + c' P& X3 W6 |# TUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. * m8 M& k3 R: `! @' @USMAR- FORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. 2 f: S# N2 D) p0 G- i/ _& d) k& l2 RUSMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. % J% H1 j; g; B S- b: ^ _3 `USN United States Navy. , [) {1 O( F; @/ a' @2 b+ z; G oUSNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. 2 ^) K( g& u, v7 o5 i- v# kUSNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. USPACFLT US Pacific Fleet. * X. i9 ]; g$ PUSPACOM United States Pacific Command, Pearl Harbor, HI. $ C3 W- |6 b9 |3 _7 {$ K8 x4 f) a8 JUSREPMC U.S. Representative to the Military Committee (NATO). . }! s: L3 g" ^0 wUSSC United States Space Command. 0 N# i! ~9 A& }' WUSSOCOM United States Special Operations Command, Tampa, FL. 2 b D' m& s; jUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. 5 `$ J, C' e. h# \% N4 v( }USSPACECOM See United States Space Command. USSS United States Secret Service. ' h! ^' s4 Y6 Q1 m: yUSSTRATCOM See United States Strategic Command. USTA United States Telephone Association. 9 f) p w. A( o. @) r. A2 a( rUSTRANSCOM See United States Transportation Command. * e6 Q' M' y$ S* J: s1 I4 r4 J/ LUT Universal Time. 3 C1 Z7 t0 o# ?. R! @UTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 315 + P+ l6 b D) T; YUTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. + |9 I1 C6 q2 J4 l( {2 H# l8 R4 tUV Electro- ; J' o! l5 n8 o# V% DOptics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. . E. q) ?- T- O& A, S- zUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V ; a3 c# t1 ~. G1 _' O316 $ T; t7 O' ^0 L2 h u6 lV Volt. V&H Vulnerability and Hardening. , w0 h' ^ ?- M; yV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. Validation Confirmation that the processes and outputs from a test resource parallel real + `3 N" e+ a! l" O, o9 ~& J# Fworld processes and are realistically sensitive to change in the environment, & @. W8 X& q" l: `tactical situation, system design, tactics, and threat. $ w8 D, O" `6 r2 UVAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. " m6 U1 t/ p8 s' `8 ?* zVariability The manner in which the probability of damage to a specific target decreases 9 m0 \: o; A# E+ z9 M2 v% Vwith the distance from ground zero; or, in damage assessment, a mathematical $ r1 Z& W5 R" T) O5 N2 ]factor introduced to average the effects of orientation, minor shielding, and : S7 R3 |1 w- R5 J& ?1 v5 O3 }uncertainty of target response to the effects considered. 2 r% J: T7 l) p9 }VBO Vertical Burn-Out (velocity). ' t8 G$ z. k+ f5 v2 fVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. 9 J3 }! A" x" x3 U5 Y9 `* LVDC Volts Direct Current. VDD Version Description Document. ) ~2 s1 K& e; p) k% tVDU Visual Display Unit. VE Value Engineering. + ]+ J% j6 o2 h: K: _/ o4 OVECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering & J5 d% _& Z |9 F/ yrepresentations of a T&E resource accurately portray the characteristics, calculations, 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. ; t6 y6 e) B* \& q7 u# `" ZVESA Video Electronics Standards Association. VFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). * k" c5 h x8 \" rVHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 3 {7 u/ {% L: e$ g317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D # D. c1 M6 i5 a' _Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional 0 j& L9 f! |, icircuitry and commercial components. Project also demonstrates VIRGIL, a 1 j' P3 z/ @- ~0 Y- x' ~gimbaled airborne sensor with visible, experimental UV and quantum-well IR + I% {$ |8 g( r6 ncameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. X- S$ n( g* v4 yVIS Visible. % M1 |5 L2 ~. R9 |VIS/UV Visible/Ultraviolet. Visibility Range 7 ^# b* w* O. y( f# d# `- Q: X(or Visibility) - ~ p% T3 w% h! qThe horizontal distance (in kilometers or miles) at which a large dark object can - x) v' v# a* Zjust 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 * G( ~ P, i5 h- z( oexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze 3 C* u- n$ c2 y, e, Y% h! ?or fog. The visibility on an average clear day is taken to be 12 miles (19 ) Y. H% Z8 A8 F- `" |8 Vkilometers). 6 Y4 U! `- N1 m2 T! OVisible Electro- Optics Technologies/techniques employed by optical sensors in the visible portion of * w5 d0 v5 x( qthe wavelength spectrum. 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. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. 1 Y* P' f1 U" ~! r p% GVLWIR Very Long Wavelength Infrared. , |3 b6 F& x- G+ `( a9 TVME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). VOX Voice Actuation. " Y$ [0 M2 ~0 n$ h5 O/ oVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. 8 B: R+ R1 M; {) d$ PVUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 1 ^3 M/ Z' D5 R" [ B% a9 A, S3 K318 9 p( I. s, Y$ A* u/ ^Vulcan UK bomber. + I8 [) h" E% s' o5 UVV&A Verification, Validation, and Accreditation. 4 I$ W( ~ ^% B9 z+ I1 X1 bVVER Pressurized water type nuclear power reactor. 4 `3 J+ i5 `1 U" Y: aVVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W - ^& b, d5 q% l+ I. M: P( }319 W/ With. 2 w! M" @* x# ^/ qw/o Without. # K5 q$ Q9 R" k# ^4 [ [( aW/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 ! @$ o: z8 p7 |2 k4 i) M6 j2 FMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. W' f; X; G+ O ^7 B1 R( nWar Game A simulation, by whatever means, of a military operation involving two or more , K w) E. w/ [. Wopposing forces, using rules, data, and procedures designed to depict an actual ) C I) s7 a0 `* P/ @, Gor assumed real life situation. + Q8 N- S7 S( ]; Q4 Y% C' EWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the JNTF for use in CONOPS validation, missile defense program design verification, / w- p( U, s9 k5 f1 b- Nvalidation and accreditation, and support CinC/Allied wargames and 1 u7 k/ o4 q, f9 \& D u* aassessments. 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. Warhead Section A completely assembled warhead including appropriate skin sections and related % ^/ _/ U2 U1 I$ Ocomponents. " _: S* B }& U: T5 zWARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its : _6 b* {+ y3 I5 q# ^9 `armed forces for war, but intends to launch an attack in the near future. 9 C+ m& |' G6 J: `Warning Order A preliminary notice of an order or action that is to follow. ! b v! l( L2 u) F0 wWARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) ) J+ q/ [, `- \3 Y5 SCharacteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for V- x& a1 n7 i; |6 j* jwartime or emergency use and seldom, if ever, applied or intercepted prior to s: W5 t2 a7 osuch use. + V& c% k! l5 [6 Z. r/ XWAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. 0 G; i, `; _6 n- T7 y( n1 w' ^MDA GLOSSARY, VER. 4.0 W 8 a. S9 w' F/ r, K4 C320 WASHDC Washington, District of Columbia. " o, ?* b) h8 |2 e f. `& w+ I5 e; \Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. Watch Condition (WATCHCON) % i4 r" W; R; [Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. & `/ Z. `; X3 R0 j5 C1 vWATS Wide Area Telephone System. 8 K0 u+ V( k& u: VWAVE Wideband Angular Vibration Experiment. 0 M9 C( k: |7 ^1 cWavelength The distance between two points having the same phase in two consecutive & b2 o l3 T" Qcycles of a periodic wave, along a line in the direction of propagation. " U) p; M, U& I2 vWB Wideband. 4 ~" l5 M0 P0 D, }5 QWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. ( z, X" B! B) u* U9 a) }1 y3 fWCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). : M0 d" b# l7 T9 a0 I3 W, tWCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. 3 p h, |: h. a' J8 H+ X- S; MWDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.