航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T % |# z) E! Z. u/ e, ~& m298 Theater Missile Defense Council 1 L, V y: U- C( k6 E& Z(TMDC) A consultative body for considering TMD family of systems planning and 7 U7 [: Q2 z6 o% \programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of 7 ~5 m& f3 b, H8 @each applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. ! P2 f$ w) h: r y& q, l qTheater High " S$ x5 ^8 B$ I" X& g& }Altitude Area # X5 \7 ^# V' F I6 v9 tDefense System 9 e2 d' ~) l1 c7 n8 V(THAAD) 6 E7 F$ f [7 t8 n" c7 a5 I$ OA ground-based, air transportable interceptor system that will provide wide area . T, U) t$ b! s) e+ _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. 8 k' A' N% t4 \5 v8 Z: fTheater Missile & O: n! Z, q# [' A; Y(TM) A theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable 6 ]" |" p3 u' l) Bof attacking targets in a theater. ; ~! G, s7 e7 ITheater Missile 6 B3 f9 b9 U' hDefense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area * B4 M4 f* b h0 v- [6 b6 \- [outside the continental United States against attack from short-range, ; @2 f( o, H; |) C2 ]% nintermediate-range, or medium-range ballistic missiles. Theater Missile Defense Ground- 7 Z4 U+ Z+ ~ I- M4 E" l% \Based Radar ) ]3 Q' O, W1 R8 n(TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and " c% P% a r$ S8 }0 Bdiscrimination capabilities for the THAAD interceptor system. Also referred to as 1 A* J# Y) ]# r G5 Y, \; n/ xTHAAD Radar. ( Q2 V4 w1 h5 w* P; { G6 ZTheater Missile * _* C) s2 R, Q+ d* M$ jDefense Initiative % f- e2 b' Q8 b( c9 ~! ](TMDI) ' Q0 h8 w$ E# E: U$ gAn initiative under which all DoD theater and tactical missile defense activities are carried out. Section 231 of the National Defense Act for Fiscal Year 1993 # C7 P! c0 Y; K* R(Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. 8 }# f8 B: |* I1 t0 l+ qThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of ( \! Y7 q, t" G+ a/ `4 Tthermal energy received per unit area at a specified distance is generally 7 a! V2 M- T S9 c3 i# bexpressed in terms of calories per square centimeter. ! E! s. l" e/ F; ~' M% q1 jThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or w) s& v9 w; S, b5 G/ E! ]reflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree # ?. _# h: } Kthat structural components fail. ; O! O1 S+ y5 L0 g& t% N# u& RThermal * [# v4 L; S# A( I) v4 j0 R0 KManagement Technologies/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 6 W) v. V* I9 T0 @0 Jultraviolet, visible, and infrared radiations. " y" y; _7 o) i BThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, / E& r1 K7 F0 N# V5 u4 Demitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the / D; X6 F( _3 W) ]3 I j4 Gabsorption of this radiation by the ambient medium, accompanied by an increase ) w2 E4 ]; F9 ?" ^" e, Ein temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) 2 t( Q3 V8 r1 _8 P$ r* |MDA GLOSSARY, VER. 4.0 T 4 r; F0 S' I8 {6 q+ J2 _299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; 0 L2 B6 m; Q0 L0 cit is a region of more or less steadily increasing temperature with height, starting 0 j$ y3 `$ I. I' E8 z4 \5 j- f0 @at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. Threat Characterization An assessment of the nature, magnitude and intent of an attack in progress. $ h5 M. y* Y! `) }8 kThreat Corridor # W; p1 \ c, D4 p(Threat Tube) A tube containing all the objects originating from launch sites and aimed at / ?. E; r& _% s/ {3 n, Atargets whose spacing is close enough to permit the tube around the object 3 L& B$ z( `$ q9 C, X, m9 a9 ztrajectories to be represented by a single trajectory in battle management 1 j- q1 r# e4 E% d. V8 ]3 q: bcomputation. + b3 W5 o! _1 Y* rThreat Scenario A hypothetical example of the employment of threat systems against ballistic 2 I5 R+ f/ |+ p% j kmissile defenses for the purpose of analysis and evaluation of those defensive ! u4 V+ y, S% \8 m( dsystems and architectures. 2 b* `5 W E+ e. i, nThreshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. Threshold ; v8 r& f8 P1 N0 {; p+ g6 o- RDefense A defense strategy that concedes that the target can be destroyed at a price 9 S! U& \* ?: b* f9 Ythat is not prohibitive, but the presence of the defense is thought to require the : @8 Q- a* t' K+ ?% b9 Roffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. # ~+ R7 ~2 Q! P T% bThrusted 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. TI (1) Technical Instruction. (2) Technology Insertion. ( T, e, ?9 |( ~2 k' [TIARA Tactical Intelligence and Related Activities. " d) q x- W7 d5 t7 r4 j% wTIBS (1) Theater Information Broadcast Service. 5 z$ Z# F$ S' w8 B0 Z( X( Z(2) Tactical Information Broadcast System. . G/ L6 J, D( u! k" N2 D(3) Theater Intelligence Broadcast System. 3 H% y3 M: m8 M# a2 mTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. . D, G- z4 ~0 M) eTIDP 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 ( `) U/ d# F0 v7 b4 }% K(e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. 3 x5 E& J# c4 _) wTIIAP Telecommunications and Information Infrastructure Assistance Program. I1 L1 q+ _- x0 E x% `/ QTIL Technical Insertion Laboratory. ; C X4 W3 a: ^& TTIM Technical Interchange Meeting. 3 s6 t- T, {# ]/ C% Y1 yMDA GLOSSARY, VER. 4.0 T 300 Time-Phased : p/ Y/ G2 B& K. vForce and Deployment List - n. g# y6 |" w3 [8 iAppendix 1 to Annex A of the operation plan. It identifies types and/or actual 9 q% T; }3 y9 \/ ^( uunits required to support the operation plan and indicates origin and ports of [9 J m- f. \debarkation or ocean area. Time of Flight & _! t" H w3 d(Max) * x) G- I' d$ c( N, p, HThe maximum time for a booster or vehicle to perform its function from time of launch. 1 X% b' n0 L( d2 N4 `Time on Station The time the sensor is in its operating position. U) m! |" F4 G1 @* B7 JTime Sensitive Targets Those target requiring immediate response because they pose (or will soon pose) 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). & K8 T2 p6 y; Z+ K/ \TIN Theater Intelligence Networks. TIP TOPAZ International Program. . L! `6 G+ a. W& ?* u" c/ dTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety . K' }# _' W9 Z0 ^; s* }TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. TLA Time Line Analysis. TLAM Theater land Attack Missile. ' s% V- c' k; YTLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. 8 l; c4 i5 k1 F/ OTLV Target Launch Vehicle. 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. 9 ?( t' K. j; c% bTMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 301 TMD C 5 q h% |) E) L& j% b5 I3 7 ~; K3 B K) Q/ I9 k8 oI Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. 2 K3 H a( h8 R0 WTMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. ; V( p8 B9 k' s. f, e0 `TMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). : y$ x; M5 t* TTMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. 8 q& ]* ?. z, _6 eTMMM TOMAHAWK Multi-Mission Missile. 3 p& I& I- ?( r/ M8 PTMP Technical Manual Plan (ILS term). * g) q# ]+ K- J3 @TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. ( `6 N5 R5 |1 x2 ETOA Total Obligation Authority. ! H6 g+ m/ ~# \1 T# B' v- ~/ BTOAM Tactical Air Operations Module. " t8 ]; |3 ?, _ V FTOC Tactical Operations Center. TOE Table of Organization and Equipment. TOF Time of Flight. - ?9 k8 Y8 w% d7 f, L) rTOI Track of Interest. 0 M6 q& W$ x: p7 t' F9 oTOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal % k" ]2 ^6 ]- S8 K. J( lconditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 5 ~4 o+ l; Y+ o9 G7 f7 GTOMD Task Radar Management Details. ; X6 H! i2 Y& ?0 c; gTOMP Task Order Management Plan. & G0 y6 @) @+ fTOMS Total Ozone Mapping Spectrometer (NASA term). : E+ y: J. r# X- D$ |( R) pTOO Target of Opportunity. ( u& W5 S$ T2 X# UTOOL Target of Opportunity Launch. TOP Task Order Plan. Top-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. Top-Down Design " }, l) ?% C' N- ~, {The process of designing a system by identifying its major components, O0 m a' A$ w; T. Idecomposing them into their lower level components, and iterating until the desired level of detail is achieved. Top-Down ! l' \8 Y8 G" f V0 @Testing 3 j7 j1 k5 }* aThe process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. ) d, I, Z6 w8 i+ j3 H! y$ @TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. 2 \. d3 w8 a+ h- i2 w. ?7 NTOT Time on Target 8 V! J' v$ \5 P2 Y+ T/ k' RTotal Obligation Authority (TOA) : [3 q7 R* v# FA DoD financial term, which expresses the value of the direct program for a given fiscal 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 3 G* p" j- T; STOVS TRIOS Operational Vertical Sounder. ; j: Z( \+ J. v) `$ y/ |3 zToxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. ; ]& g5 N- f8 F. XTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. 5 e* r7 e& ^3 m6 C, C+ u7 m) v4 [TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). 0 |( F- X4 D* D2 |+ N7 x7 JTPDR Total Processing Data Rate (TelComm/Computer term). 0 f. l. G$ \+ C; p; KMDA GLOSSARY, VER. 4.0 T - S3 ]. q% G% d' k9 H( p303 TPEC THAAD Performance Evaluation Center. 3 R" D2 Z7 u u$ u' q8 V7 E1 fTPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. 1 Y. p$ Y. c* c9 Y/ l+ ? N7 x# FTPFDL Time-Phased Force Deployment List. - L V5 g8 T0 H+ C9 @ N: F- TTPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. 5 S s$ R2 H4 F5 \$ xTPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. " E" A8 q/ F c. s w3 F9 BTraceability (1) The characteristic of software systems or designs or architectures or 4 E$ s0 a2 `2 M6 T* F7 W) W. cdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or 4 g" c7 t' m( E, Y: Z: S& u9 i) Qmore products having a predecessor-successor or master-subordinate ' r* y7 d2 O$ ]relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. / ]8 O$ }$ w) t0 ~6 U/ b$ S) }(2) To display or record the successive positions of a moving object. 3 [( g; o3 y, Q( L0 `, w I(3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating 7 G. k. @4 [: ` [' jinstrument at a moving target. ( j( S; g+ S! a/ e(5) The actual path of an aircraft above, or a ship on, the surface of the earth. Track % B2 \+ t* m9 C- e% m' D8 T4 zAssessment The Track Assessment looks for anomalies in an object’s track data. An anomaly W) F3 F5 y) b/ j. g& e4 _in the track may indicate a hit. Track, Birth to , v/ w) F: I( ?0 A( kDeath % m+ I/ a# y9 J) t2 h0 fThe maintenance of an associated track through all phases of flight (i.e., boost ' @! [7 R; t, [+ ]" tto reentry). ; S0 r7 q1 ^$ lTrack Correlation The combining of track information for identification purposes, using all available $ y8 _0 b( I0 l8 f4 w- P; {6 B- Adata. & V3 f% s( M1 r" E6 `! _Track 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 ) B7 ?2 `- |/ @$ Nor place (e.g., reentry). & @8 S P5 i3 ^MDA GLOSSARY, VER. 4.0 T 304 ( {9 X5 g# q" f$ I0 O; ~/ o% } t1 W7 HTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS 7 B* v) U' T' s0 Gmeasurements with irradiances with confidence of association; or some subset of 4 f* j2 y3 _9 d( c% v2 i/ }the above. 4 ^. O k' t5 W% C% d4 ATrack File-Track History 6 L4 q" _, W2 P9 \A set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. . m' z) H2 n2 s' G. `Track Formation The process of determining the track or tracks of detected objects. It is usually a & W' |0 T& D& Vthree-step process of data association, track initialization, and track improvement by filtering. . a0 s% n( U2 I2 J: ^Tracking The act of generating and maintaining a time history of an object's position and * [: O. j# ^+ }any other features of interest. Tracking and Pointing % e7 i9 y, e# LOnce 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 2 t2 X- j I. Sare frequently integrated operations. Tracking Range 2 g9 w& t& N5 _' }; |& l(Max) The maximum line of sight distance at which a sensor can maintain track of an 5 w' X6 z# i: i( y+ ? Lobject. 2 N+ X1 W- q0 b( A& h. O- r# G2 fTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector % \/ [2 E4 c8 Qof an object. The process typically requires observation from a number of frames. 9 ~% s4 S' O0 |# y* z3 x* [; VTrack Production ' V. ^ i# m5 r l. V# h0 n1 EArea An area in which tracks are produced by one radar station. # Z& D3 [ R0 `9 _Track Symbology Symbols used to display tracks on a data console or other display device. 9 ?$ U0 ^- t/ ^8 S# FTrack Telling The process of communicating air surveillance and tactical data information between command and control systems or between facilities within the systems. 7 A" Q; {( E, g3 N. q3 \: Q) |4 aTelling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. n g5 {4 p" t) T/ A. O( K; n! ETRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability Maximum The maximum number of objects per unit time which the sensor system can 4 o" \, `/ k ^( i2 nmaintain track files. ( u+ Z% U0 Z# ZTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high d9 [ _# @1 j. y. C$ kendoatmosphere. 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. Trajectory ( }; B* P5 Z7 R" N( GHistories : n, h' q$ _5 _2 ]* B0 W8 t7 W8 g6 TTrajectory information on targets recorded over a period of time. 3 X4 T: W L7 b- g3 F. {1 iTRAK A data base management system (not an acronym). 0 N5 v' A2 q% F k9 o; l3 o5 v# oTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T 305 ( V% d, R% v4 Y1 P8 JTRANSCOM [U.S.] Transportation Command, Scott AFB, IL. : x( z; G7 B+ X' @* v+ DTRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. & \" E' `9 ?1 a% xTransition to & R( Q, |- a4 {. w6 g/ gProduction 1 V( ~- D/ y& eA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission Security (TRANSEC) - p! Q' {" s1 b6 ?2 sThat component of security, which results from all measures, designed to protect communications 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 - h o; x- a- b$ K$ w5 m7 }2 sspeed 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. 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. # A% d& Y1 [7 S8 u0 F* p) ]+ e# sTraveling Wave 3 W. ]$ h3 C) I2 l6 W+ XTube (TWT) An electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in ' d) a# _, d5 l& |: A9 wsynchronism 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. . J0 g& S- i( U& UTraverse (1) To turn a weapon to the right or left on its mount. ( C$ g) ]# H" `# E(2) A method of surveying in which lengths and directions of lines between ) {# r2 `& @3 A8 L {points on the earth are obtained by or from field measurements, and % i7 _6 r _6 q) Gused in determining positions of the points. * q9 l! b; ^, RTraverse Level That vertical displacement above low-level air defense systems, expressed both ; f& |1 p7 }/ bas a height and altitude, at which aircraft can cross the area. 3 y( l) i9 \+ _TRB Tactical Review Board. # r9 q! x: M- e) A; GTRD Technical Requirements Document. TRE Tactical Receive Equipment. 6 r5 P. R5 [2 C D4 A; g: ZTREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. 8 b6 \& d2 Z3 d5 F: C5 {MDA GLOSSARY, VER. 4.0 T ; |; ^+ J0 W3 N9 C7 I306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. $ O3 u: u. o u' u u% N3 b0 yTRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). 5 S1 c* G0 W( z8 e& _TRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP 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 additional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. 3 r% }" e5 t- P/ M2 `Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the - A) ~1 ?& p4 z6 |, d* j$ Qatmosphere, the troposphere. The tropopause normally occurs at an altitude of . j; X3 k$ D$ N e4 tabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the 4 h5 I3 [% H$ `! {. r `% atropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to ( J `- I$ S+ U# z+ ithe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or ! O& A# w Z# {: \* b5 Uless complete. 9 P6 {* ]9 G5 s) ^: r# I! c4 _0 ATropospheric Scatter c( n/ u& f+ Q" t! ?The propagation of electromagnetic waves by scattering as a result of 4 K2 R: W9 n* ~9 Cirregularities in the physical properties of the troposphere. ( T7 p& \4 f3 N' BTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. ; O0 k2 E" p) [& |$ g(3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. 2 J9 c2 O% o! `4 ~* }TRPC Technology Readiness Planning Committee. 2 }! F' D) ]8 o4 c5 S4 bTRR Test Readiness Review. Trusted 0 O1 ^8 n: f3 |$ EComputer System/Software ! @3 X& o- t: ?& Q' `- c6 w6 ?! IA system or its software that employs sufficient hardware and software integrity : x* J. i6 I, E- e7 m2 Vmeasures 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 of the Trusted Computing Base and cannot be imitated by un-trusted software. # A/ j% B& F1 g5 [6 s" U8 ~TRW TRW, Inc. # M% v. X3 r2 L/ Z m5 }; fTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 307 TSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. 5 Y7 R% d3 X4 Y) i3 Q: B0 ~TSCM Tomahawk Strike Coordination Module (USN term). 5 W G- o, j7 L) F7 e" s4 k) eTSD Tactical Surveillance Demonstration. TSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. 6 g5 u. c5 K8 t( k: B1 x5 TTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. 3 B( \6 V1 H2 y9 X3 {TSMA Theater of Strategic Military Action. TSP Target Support Plan. 1 Z: n5 m6 b! i5 @! S( _TSPI Time, Space, Position Information. ; H( q: Z3 N: R& z4 F0 j5 {$ {TSR Target System Requirements.

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TSRD Target System Requirements Document. + l& {4 {/ j5 z( O ]TSS Terminal Surveillance Sensor. ( T/ C) W' d" _6 c8 A0 ]: h& T! JTSSAM Tri-Service Standoff Attack Missile. ( h) O {; _/ J- [9 u! oTSWG Target Signature Working Group. / [. W9 l2 l' a- mTT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). 9 K, J. M2 v3 R( T/ M# |TTA Total Time Accounting. 1 G6 {& K) N4 n1 y1 FTTBM Terminal Tier Battle Manager. % y" g+ H6 \' |! u" j5 _7 \' b* rTTBT 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, % o; Q* T, ~0 X5 _) K2 Owhich have significant potential for improving testing. # p; n; \0 Z( p" W& VTTEL Tools and Test Equipment List (ILS term). 0 s3 _8 r( ]: ~+ R& H q6 HTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. * I* m9 ^: C2 |) k5 S" MMDA GLOSSARY, VER. 4.0 T ! U- Y6 `& `9 r4 U7 W: n" U" I308 TTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). 7 Q2 \9 }9 } E" q0 Y0 Y- CTVC Thrust Vector Control. TVE Technology Validation Experiment. : b' \- F6 p: }: B/ QTVM Track-via-Missile. 8 N; r1 D; Y( I i. y' N: [TVV Technology Validation Experiment. $ j$ E6 {9 G5 {/ F- B) r# V' RTW Tactical Warning. 5 A5 m6 G! Z, H1 uTW/AA See Tactical Warning/Attack Assessment. 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). TY Then Year (PPBS term). TY$M Then Year Dollars Millions. Type A - System , ]7 T6 a* z( v. v( _) U- iSpecification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission * ^6 ?+ m7 L6 q* K( Brequirements of the system as an entity. Type B - Development ) c* r/ C$ j4 z+ B. DSpecification ( Z8 J+ q( i$ K8 CStates all necessary requirements in terms of performance. Essential physical X+ \! a" j# q- n8 Aconstraints are included. Type B specifications state requirements for the ) t6 ]5 f+ i8 z4 p. i9 hdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of those characteristics. # U! h, N g3 ]8 Z3 m3 gType C - Product Specification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) ' h# \, d1 E) j' A# ~4 b0 Brequirements. Type C specifications intended to be used for the procurement of & Z/ k7 @" O: S9 q% s0 d# qitems including computer programs. 0 E' B' Q6 @3 ^3 d9 c( fTyphoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U V( Z2 O C0 C309 U Uranium. U&S Unified and Specified [commands] (pre-1996 term). p3 I) Q. b9 [0 CU.K (UK) United Kingdom. U.S. (US) United States. e% N7 P a, `; r n0 ?3 k- m4 E7 j4 GU.S. West U.S. West Incorporated. " y" a g: E3 N$ U9 u0 K, N' M5 D/ nU.S.S.R. Union of Soviet Socialist Republics. a0 q: J4 A k1 L- t9 yUA User Assessment (NMD BMC3 term). ! v) ~2 L) a3 Z; HUAE United Arab Emirates. UAV Unmanned Aerial Vehicle. 1 v* Y) Y4 ? v- O6 i& FUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. , Z1 J2 z1 A8 e' I0 cUCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). 9 p! E: G: |& YUDS Universal Documentation System. A standardized comprehensive tool for stating and coordinating program requirements for testing MRTFB ranges, as well as the , Q; s: {( A7 z& V0 r$ Jcapabilities and plans of test ranges to support program requirements. It 8 K* h) ~" A) q2 O4 ?1 _" Jconsists of a series of six planning and execution documents: 10 are the : p$ d8 {8 F y7 QProgram Introduction (PI) (also called the Program Introduction Document (PID)), ! b; r( t& E! M2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the 7 K0 n5 G4 T1 FOperations Directive (OD). The UDS was developed and is regulated by the 4 B0 x, r' B2 Z; B- {$ ~8 c( CRange Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. 9 a+ [7 j! C: k# o0 q6 A! _9 CUF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U , ]& P# Z1 }( o. {6 c- J310 , Q1 E, {' B( m" ] _1 G! b2 v1 l. q* C+ qUFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. UGF Underground Facility. + }1 g- O" o: a+ {& z7 OUGS Unattended Ground Sensors. UGT Under Ground Test. UHF Ultra High Frequency. ' G9 K" l% E' r I. oUIC Unit Identification Code. UIN User Interaction Node. : j k( \" v. Y: aUKAS (1) UK Architecture Study (2) UK Associate Studies. . |5 \# b6 q" d! _UKEADTB 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). . ]9 t5 H0 A2 r, vUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet 5 I" Q9 q e) `( _: V(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). % _1 n, z/ F, D- i9 ?1 K- aUMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. 0 A4 a$ M3 u, x. lUNC United Nations Command. Unconventional ) V1 _( Q: J% B: T: gWarfare A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare includes, but is not limited to, the interrelated fields of guerrilla warfare, evasion * T5 }" I" Q* k2 qand escape, subversion, sabotage, and other operations of a low visibility, / x5 f$ p% ^# |5 e: K" Ccovert, or clandestine nature. Unified Action Armed Forces A publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or * {& r8 Q2 w- v* Omore Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and b( ~+ B0 m! T* D1 ucomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary ; h% I) |4 s- k" _ y! k. t, t9 d7 a/ Dof Defense with the advice and assistance of the Joint Chiefs of Staff. $ n% O \" r5 s& _, o' g0 k2 ~MDA GLOSSARY, VER. 4.0 U 311 UNISYS UNISYS Corporation. 6 ^$ a T+ L4 X. k& H0 Q( B' RUnited States $ F( [4 E% J. \) C' _1 dArmy Space Command (USARSPACE) * i" u1 \1 P% b' V1 i- nThe Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. # q: H# V* \& E2 k3 t9 jUnited States Space Command (USSPACECOM) * g8 Y6 A7 x2 c' @" t; d: P2 UThe unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. : @+ M1 J$ o( m$ RUnited States Strategic Command 9 L; b/ j0 ?8 H& I/ M4 z! X(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic " D- U: a1 q, ]9 rmissile offensive combat strikes. Located at Offutt AFB, NE. # N/ Z4 h: i. l$ J( ^5 P9 EUnited States \7 O) i; `1 R9 z( \) X% m. pTransportation $ l1 C, o( V3 ~& D' C8 KCommand (USTRANSCOM) * S5 i! I( o" L& OThe DoD unified command responsible for providing air, land, and sea : B9 T( o7 ]. H7 O: g3 qtransportation 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 7 L6 |) F1 u8 |6 J7 y% P- ~needed to support the deployment, employment, and sustainment of U.S. forces : j% s/ B0 V* R1 bon a global basis, as directed by the Secretary of Defense. Located at Scott ' E$ [ X4 r4 W+ I% \AFB, IL.

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Unk Unknown. Unresolved Objects ( {: U( Z0 n& t) a5 M) S0 r( M3 J4 GObjects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. $ Q+ T$ V" o; z l/ n1 W8 FUNSC United Nations Security Council. : c) @% \6 |0 d! QUnSecEnergy Under Secretary of Energy. 2 m U: J9 j6 [& }( mUOC Usable on Code (ILS term). & w, o5 ~9 c5 j+ U5 Y% IUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. ( E( z$ K- c& r5 R$ \0 l% i' P$ |# g- rUQT Unit Qualification Training (ILS term). * j( J Y! w! ]8 I% E4 DURIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. / q* T: Y v- Z& bUS/UK United States/United Kingdom. $ H, T9 ]3 D, {1 l5 U# a8 @/ ?USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. % y$ `, G1 Z! A* F9 Y3 ?USAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U . u$ E( b8 h: U4 O. X312 USACE United States Army Corps of Engineers. : `5 O4 r& P# t# Y7 A6 NUSACOM United States Atlantic Command, Norfolk, VA. 2 J7 M% u) O. k) |" N$ MUSAF United States Air Force. & P8 d/ j5 L: J0 |8 U/ l5 \USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. 8 ]% c3 Z. P8 r% _0 r3 p+ Y# lUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF ' q9 X2 G7 `4 Y, ySystems Command /SSD. 9 O' F( W" a( r' C8 B& B4 oUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ) h0 W+ ?0 E8 X% p7 A: [6 B- oUSAF/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. 3 Y2 ?3 c( m2 Y; i6 CUSAFLANT U.S. Air Force, U.S. Atlantic Command. 2 r* g; u$ Q6 N! @$ _USAKA U.S. Army Kwajalein Atoll. , L, W& ]6 `1 YUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. + p* Y6 u) C0 D5 l) {7 k, e6 N1 iUSAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. % u3 |7 f# P% OUSAOTEC U.S. Army Operational Test and Evaluation Command. 8 H6 r: g3 \6 h1 v& yUSARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. 3 t: \, L' F3 h, a6 q/ CUSARLANT 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). * ]7 V* W: Q$ d. |6 Y2 p* k CUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL 7 ?' s. W7 P4 _9 s2 z0 jUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. USC U.S. Code. USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 ! \% }1 ~+ c& J( m" VUSCENTCOM United States Central Command, MacDill AFB, FL. ' ^; |- \& W3 l1 U, ~' r$ @. dUSCG United States Coast Guard. 7 b; ~" G" M- ]0 U/ JUSCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. ' ?; x+ }" f+ F! Y$ X0 f `USCINCLANT Commander-in-Chief, U.S. Atlantic Command. 6 G! ]+ U3 O4 D3 @' w* UUSCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. * L2 w, t$ z' J4 vUSCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. USD Under Secretary of Defense. 5 K. q2 _) o3 D( p+ bUSD(A&T) Undersecretary of Defense (Acquisition and Technology). + K2 A+ ~2 S& D5 s9 i! sUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. ! Y5 |, E% S. R W; E# W, qUSD(P) Under Secretary of Defense for Policy. 3 e. n* [3 q5 i. I+ GUSDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. . \, }' v$ f0 a6 Y4 o# uUSDELMC U.S. Delegation to the NATO Military Committee. ! I( Z' r5 o) _2 Y2 {% IUSDR&E Under Secretary of Defense for Research and Engineering. ; M2 S& b' n* d1 |7 ^# DUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine 8 V; p( K* K2 F, ]9 M5 {6 ^(hardware) or program (software) that is compatible with a person's ability to b4 c3 W Z/ ~( @! A% q" S3 Soperate it successfully and easily. 5 h Y8 N( z0 B, sUser Operational / [; ?1 O. s/ G/ L+ y7 PEvaluation ( Y( R5 {! Z8 o# HSystem (UOES) Prototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and % I2 f4 ?) C+ J# {" m! {( _training for a system proceeding through the normal acquisition process; and (2) ( y& t2 [' E: q8 Ncontingency defense capability should the need arise prior to completion of the 2 T( }. B$ C" ^! | i8 @normal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ; {# h" S2 d; k$ B7 y, O" \$ zUSFJ U.S. Forces Japan. 2 y' V5 ^; w" X* F4 B: bUSFK U.S. Forces Korea. ; ?" k2 D1 u9 e+ I* oUSFK/CFC CSFK Combined Forces Command. USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 314 / {) Q" l& a# q/ jUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. 4 W2 ^) Z+ v; r' ^1 u; A+ lUSMAR- ' }4 c: j3 Z* b3 A0 g1 a4 nFORCENT U.S. Marine Component, U.S. Central Command. , n% n" b9 e8 j. C9 [USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. $ Z. F& H% m3 L, c2 e8 b5 xUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. : ?$ H, q0 U8 X& ^1 zUSMILREP U.S. Military Representative. 7 Q- {) Z; d+ P4 t+ H1 TUSN United States Navy. $ m/ I2 a+ j4 h' y) ~! JUSNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. 6 [, L" w: x% t( qUSNIP U.S. Naval Institute Proceedings. : ^' S4 x. N# sUSNO U.S. Naval Observatory. 9 z4 i- G0 y$ a" kUSNPGS U.S. Naval Post-Graduate School. ( f, y& h/ S0 e6 L! oUSPACAF U.S. Air Forces, U.S. Pacific Command. : b- I( C. C8 B# n9 v3 ]3 jUSPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). ; }# W* @7 }4 b* E" r7 P$ YUSSC United States Space Command. h. y& ?3 G; S7 `2 VUSSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. 6 R7 @$ t; j8 h6 G; P8 oUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. ! H, T/ a, D8 c7 jUSTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. , `0 n$ g2 S/ X+ }MDA GLOSSARY, VER. 4.0 U o* E9 |+ E7 b9 G: [2 I+ J2 t- u315 . c0 J0 `9 w0 Q+ \( jUTM Universal Transverse Mercator. / Q9 \/ f; b; M8 v5 g2 X t3 W; Z4 MUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. 1 L+ K6 H# J g2 ?) lUUT Unit Under Test (ILS term). UV Ultraviolet. " d+ B, C ]. I) c2 @: AUV Electro- 5 p I* L, s5 f# S9 KOptics 6 f( R0 }9 _; E5 |: d; V% l0 A4 YTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). ( u0 H9 c! j8 P6 oUVPI Ultraviolet Plume Instrument. , J9 A2 M) W- T& U* Y NUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V ; g" c- d& P# Q316 1 ?9 j$ U; a2 qV Volt. - h' o P9 j7 x! WV&H Vulnerability and Hardening. V&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. ' ?* m% F" u1 S" r4 i0 |& C" AVAFB Vandenberg Air Force Base, CA. Validation Confirmation that the processes and outputs from a test resource parallel real $ {0 \$ f! X6 E. ~# l: W7 M* J q: Sworld processes and are realistically sensitive to change in the environment, : D* y+ y' ~; n# G5 i+ Etactical situation, system design, tactics, and threat. $ B$ c) s; D7 ~0 F$ {7 c7 h% hVAMOSC Visibility and Management of O&S Costs. * c$ @" ]2 z& UVAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases 3 v* f" G+ R3 k1 O2 `7 V" Z! }0 fwith the distance from ground zero; or, in damage assessment, a mathematical factor introduced to average the effects of orientation, minor shielding, and 4 J1 M# t# [- n) b9 w A" kuncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). + n. R% n; z3 d6 A- U# ~2 R8 T8 w/ NVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. 9 P% r3 y+ N7 n" QVCS Voice Communications System. VDC Volts Direct Current. / J/ w6 X. Z" ~9 J# O! GVDD Version Description Document. VDU Visual Display Unit. VE Value Engineering. VECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering 8 b4 J$ G7 J1 Q7 mrepresentations 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 % p( v9 w" A1 N$ \" Vof the development process to determine whether it satisfies specified / _+ p* G0 g7 r: W urequirements. 5 Z+ r5 ?( R( b$ G- q8 @VESA Video Electronics Standards Association. VFR Visual Flight Rules. % q0 l1 X7 I+ g. LVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. 5 E( `4 Z2 }/ Z' tVHSIC Very High Speed Integrated Circuit. 5 K* C# N# k, M3 {! e9 s. w0 ^MDA GLOSSARY, VER. 4.0 V ( H' H, s2 N; h' t: h8 _+ z317 & y) x6 P ]( n- p/ ?: ZVIDS Vehicle Integrated Defense Software (USA term). & p) k3 }1 T6 E, uVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D 6 P, C' g4 }9 v4 N0 {Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 7 I/ }6 Y# A+ P# OOperation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a P8 n& O3 p! b6 ^9 z" igimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. VIS/UV Visible/Ultraviolet. Visibility Range # j2 e, {% f w' M) a6 B) ~0 Y. h(or Visibility) 0 _9 K/ P0 V+ j$ ~- W; Q4 A2 q! T4 zThe 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 exceptionally 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- Optics Technologies/techniques employed by optical sensors in the visible portion of $ c7 \, A) O+ E8 A# mthe wavelength spectrum. 3 g2 `" u8 G' @! D5 E3 xVLAR Vertical Launch and Recovery (UAV JPO term). 1 x2 P& K1 Q* }) p: LVLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. * t/ S& t+ s# D: F, S- AVLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). VOX Voice Actuation. . y3 Y$ Z2 `" k5 G6 bVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. " p% V" s4 ~' x3 r) H8 v. Z. qVUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V & ?2 ~5 _/ I9 z* T1 k318 Vulcan UK bomber. VV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. ; a5 O2 Z1 E$ sVVIRF Verification and Validation Information Request Form. $ y' C6 U' G6 h) U4 t' _: q' ` ~5 KMDA GLOSSARY, VER. 4.0 W , N6 s7 Q5 \! W319 W/ With. " n) p& j5 A6 r( uw/o Without. W/TD Warning/Threat Detection. WAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. ; l) p$ }6 `0 l2 [9 WWar 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. Wargame 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, validation and accreditation, and support CinC/Allied wargames and assessments. ) D! F/ Y _' j5 ^% k# JWarhead A weapon, usually thermonuclear, contained as the payload of a missile. 4 {8 A3 n4 o7 [' W' h0 z/ R" x# d: mWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, & ]! V! d( P G" U6 \airframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related components. + b$ \" C* M' R5 AWARM Wartime Reserve Modes. ! G$ v( I( K8 x, @* ~! DWarning of Attack A warning to national policymakers that an adversary is not only preparing its , t5 J5 E$ @9 v) Barmed forces for war, but intends to launch an attack in the near future. o- U3 e' `7 ^- C6 Q' \Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). & [/ k$ v/ o0 `, [& T: |1 ZWARSIM 2000 Warfighter Simulation 2000 (US Army term). P; J" v; P; R, f3 B/ W, U, aWartime Reserve : m# a) ^. g+ Y" r5 J4 ^- IModes (WARM) 8 M8 g! a* z0 ?' M6 xCharacteristics and operating procedures of sensor, communications, navigation 5 j" a, T' y" F; n" aaids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing - K% n% I* Z6 k' ycommanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for 5 H) z7 H: H. Q! lwartime or emergency use and seldom, if ever, applied or intercepted prior to % {+ S& U" P9 B: b9 l/ {such use. WAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 7 S! |! u+ K. g# {320 0 Y' s) t/ m Y3 w) o/ E8 ?$ NWASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. / A6 ?& i6 N! T2 ^, ^; t: I9 \. }& `Watch Condition (WATCHCON) 1 c% j. }' H) NSeries of readiness conditions used by the intelligence community to alert staffs $ a% e( z; p% y4 S* tto watchfulness without raising DEFCON. ; D, O/ W2 A8 d7 @WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive & c6 h3 A: y7 U1 Ccycles of a periodic wave, along a line in the direction of propagation. ! i) ]" b% p% ?: o% d0 [WB Wideband. WBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. - F3 \7 T/ |1 w( bWDM Wavelength Division Multiplexon. x5 Q, n' q, p# D9 V' e, [Weapon Enabling The set of control functions without which defense weapons cannot be $ E- S1 e3 W% v& y. @9 |$ H9 ulaunched.