航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T # V5 W) z$ t" H& e9 C298 V( J4 [% @- E' G, u) |/ NTheater Missile " S, i+ h- Z. [7 C# }6 m% kDefense Council 4 _ w# |, `+ P/ |' P+ n(TMDC) A consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for 4 W3 }' E- K$ N* C, JAcquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents 4 C7 k/ C7 w) l0 ?# M1 f/ q% ]and Program Managers. Theater High 7 o2 _. _' ]3 g/ n4 ~Altitude Area ( a3 V8 o; q) n% b/ C2 [, t* zDefense System (THAAD) A ground-based, air transportable interceptor system that will provide wide area 1 m1 ?" {% i" x( R0 idefense 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. - _2 A1 p# [ C) u; zTheater Missile (TM) + k3 D1 S1 g) Z) M5 T7 x; tA theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable 8 y+ w% p- j6 z& L7 u' G A2 \( mof attacking targets in a theater. ! }9 W3 }* A! T; u- a4 c3 s% k0 ETheater Missile Defense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, + M8 o" F# Q/ _- y, B; z$ ~1 Lintermediate-range, or medium-range ballistic missiles. Theater Missile Defense Ground- : S+ S0 }& o! F, m5 e% l% d6 uBased Radar (TMD-GBR) " Q; `0 W6 ^: A7 U+ X; ^5 u- YA ground-based, air transportable sensor that provides search, tracking and * `) D# o `+ [4 Ediscrimination capabilities for the THAAD interceptor system. Also referred to as 2 V& r, |2 e) [" r- dTHAAD Radar. Theater Missile . B7 _/ M" E9 L& a! L9 i( KDefense Initiative (TMDI) ! U' }' L4 b+ J& e2 QAn 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 (Public Law 102–484) directed establishment of a TMDI office within the DoD. 3 i Q0 p( p: J" XTHEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of ! G! u; p4 e4 I! {4 t/ A& ]8 N: e- A2 hthermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. / N1 ~7 R; D. L3 P& g) wThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or ) a2 d' f2 p* L" t- T0 o$ z9 mreflected from the objects, which are imaged. " Q' ^7 g2 t. a9 K" WThermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. Thermal Management Technologies/techniques associated with the control and management of : j1 x" S- V* J' [/ Rthermal energy, its generation, dissipation, and recovery. 8 b: w8 ?2 d( V# u: q8 qThermal Radiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the : f8 l, |7 O1 K) m& ~) qfireball as a consequence of its very high temperature; it consists essentially of : k7 D. I/ T! r+ H8 x6 _ultraviolet, visible, and infrared radiations. 3 e( F: [7 }* v+ l& ]- t4 i) ZThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, emitted 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 K* q3 B5 v. A' z- |2 T$ Tabsorption of this radiation by the ambient medium, accompanied by an increase + R) g: W, o% I R/ A1 [" ~) sin 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 : a& J: ^5 V5 J: VThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; ( ?5 N9 A- w7 k7 U) u3 Xit is a region of more or less steadily increasing temperature with height, starting * a6 s# K5 K2 r+ u/ {8 ~* }at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. Threat 9 \2 I* n" Y. qCharacterization 9 E+ S- T- g( F( t0 X4 [% V z( ^An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor * m% H7 m+ F M) f/ i. H7 _/ |(Threat Tube) A tube containing all the objects originating from launch sites and aimed at 4 j/ c9 _" Y) E! T3 Y: o" ktargets whose spacing is close enough to permit the tube around the object & \. U5 j* k' g0 ztrajectories to be represented by a single trajectory in battle management computation. + ?3 e; A& \. l% }' {+ G- A. h" jThreat Scenario A hypothetical example of the employment of threat systems against ballistic 8 b1 @ x% r0 w& y( u$ Tmissile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable , e5 ~8 n4 l7 \+ ^* Wvalue (threshold) required to satisfy the mission need and a performance & H8 U% E6 ]) q% D) uobjective. Threshold 5 @ E/ y% w! K' E+ xDefense . x" C% h/ W+ M) {0 M# o B( y7 J" YA defense strategy that concedes that the target can be destroyed at a price that is not prohibitive, but the presence of the defense is thought to require the offense to mount a relatively large and complex attack. ) A1 J# I" B% _6 T' WThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. ! a3 s9 Z- B( b' \$ a, A3 q0 hThrusted % x. @5 K. y- c4 S5 {8 B( k3 BReplicas (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 0 }# Y- k+ H. t& nphase. # B9 n5 }# \8 }! b( A& [2 \TI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. H; e D1 Q5 c' |8 {, KTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. + m z: A( M* L6 a- eTIDP Technical Interface Design Plan. E, m7 |4 u5 hTIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. ; a, b7 D1 A6 c# [) L4 O. yTier An integrated set of SDS elements that address a particular phase of the threat 3 J$ A3 Y8 T, i+ c(e.g., boost phase). & o7 P( R# `- Q' @, NTiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. 3 O8 B' U7 T$ S0 y1 F3 ~TIL Technical Insertion Laboratory. 0 ]+ V1 j2 {- QTIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T 300 8 R! W! W& \. ^, |0 mTime-Phased Force and Deployment List 9 e% K6 i2 J+ k! c% X" U! OAppendix 1 to Annex A of the operation plan. It identifies types and/or actual units required to support the operation plan and indicates origin and ports of debarkation or ocean area. Time of Flight 9 z- h# s1 }/ l( o8 ?(Max) The maximum time for a booster or vehicle to perform its function from time of + ]" W; a3 T# L( b3 q3 k H# v' jlaunch. Time on Station The time the sensor is in its operating position. Time Sensitive V, X3 c) i# g) }; }1 X* u( KTargets 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. / P/ A- s! L8 z; h; M) W9 C$ L6 fTIMS Training Integration Management System (USAF term). ! A$ z: }6 a0 o2 q3 ^ x/ \TIN Theater Intelligence Networks. TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar ! L! k+ d/ X, @+ q& p- qTerminal (GBRT).) 0 @! m9 D2 h4 V& P& o& u9 E+ @) `TIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. 3 {* s+ r& ]/ GTitan USICBM. / h) v+ O$ V( |9 c0 V, `TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. 9 G9 G) W4 t m) l" N* RTLA Time Line Analysis. $ i; N1 v: q$ L L' `3 u$ P( MTLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. 8 }* Y5 l& D* x G, QTLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army 2 z n5 K/ O: I0 p* F3 Zterm). ( \6 I) N. g1 o3 ~6 CTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 4 s* H! G/ j% H0 a301 TMD C 3 I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). 1 M+ C' ^4 A0 B* b0 w0 STMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). ' e) b7 M- h4 b: m! Z: d+ T. STMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. - T5 P U! |6 s, {/ h' E$ \+ lTMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. U7 U/ S7 o- ?* gTN (1) Terrestrial Network (C2E term). (2) Thermonuclear. 6 Z, V9 X. p' x% u% }( D5 F3 }5 s& mTNF Theater Nuclear Forces [Treaty term]. ; \* G- f1 T; ]TNT Trinitrotoluene. 3 `( x# Z( ?. x* `; hTNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. 7 ]% b! L9 Y; O l* p6 X2 U, GTOAM Tactical Air Operations Module. TOC Tactical Operations Center. TOE Table of Organization and Equipment. 5 S4 s9 x# k; m8 @, \4 b0 d% I0 LTOF Time of Flight. TOI Track of Interest. TOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. 0 q! h e4 H: R7 P5 iTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. ( h" C0 U: D4 z, |' b6 wMDA GLOSSARY, VER. 4.0 T 9 X/ [8 ?" `3 U6 K! N302 TOMD Task Radar Management Details. # G' Q( C9 e+ NTOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. # Y1 B6 S8 A6 {. U) PTOP Task Order Plan. % `2 c! D: `+ |: UTop-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 # [, _& W; F# G! |The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the desired level of detail is achieved. % H6 h" ^$ O( U! Y- ETop-Down & f8 K! ^1 b- H# }3 p6 ETesting ' o q- U8 R$ g; a; W0 J+ e s" A8 L% sThe process of checking out hierarchically organized programs, progressively, # l% H4 i% n, u( ^1 x+ ]4 Ofrom top to bottom, using simulation of lower level components. / q" s0 c! T/ |" ]8 {TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power + J& ~3 {$ J. V+ J2 ]technology to U.S. BMD applications. * ~6 C* d# X1 VTOR Terms of Reference. ' P% a6 Y3 q$ d( H; S1 P$ ZTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. ' X1 ]) Q- h( d$ [) Y6 w, eTOT Time on Target ) P- Z4 b+ I5 S# XTotal Obligation 2 @$ v! ^! S& w) a& ~/ BAuthority (TOA) A DoD financial term, which expresses the value of the direct program for a given fiscal year. Total Quality Management . X, z7 `" R; F0 \' t(TQM) A management philosophy committed to a focus on continuous improvement to : _! N* G2 n, a! S/ xproduct and services with the involvement of the entire workforce. ) L; C# e$ N2 C* c4 \TOTS Target Oriented Tracking System & {. x, b$ n( M1 @ c- RTOVS TRIOS Operational Vertical Sounder. A' w7 \6 p H) P4 R0 J% ^) aToxicity The kind and amount of poison or toxic produced by a microorganism, or # N3 e( j8 e8 j) g$ T/ C$ \$ Ypossessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. . K1 e1 }! f. r/ Z) LTPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. * p ^, |+ g& Z: |) nTPD Mobile Tactical Radar (US). # M7 o7 v: H5 _1 [* r8 _2 H$ n7 ^TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 8 ? A$ R$ ? i ]6 q; t303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). 7 y+ U' {" _6 V5 D. l4 |' UTPFDD Time-Phased Force Deployment Data. 2 \3 _0 \0 l: n+ Y uTPFDDL Time-Phased Force Deployment Data List. - e! f! u, S. O; I2 T+ a8 x5 _TPFDL Time-Phased Force Deployment List. , f! T! n) @' P1 ~TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). S# T! v( C9 X0 eTPO (1) Test Planning Organization. (2) THAAD Program Office % c8 M! C2 Q$ C# s, ^! M' xTPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. TPS Thermal Protection System. & ^/ p0 R+ @1 Y4 f7 G! PTPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path ; Y$ A2 L# ]0 S$ v2 }(upward) and allocation/flowdown path (downward) of requirements and constraints. 9 p( ^* z1 J8 z$ q(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. (2) To display or record the successive positions of a moving object. $ N9 H I# L: T(3) To lock onto a point of radiation and obtain guidance from. . ` C: a5 Q$ o& u5 M* i(4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the earth. Track 1 X1 g0 {1 M) P8 z* gAssessment The Track Assessment looks for anomalies in an object’s track data. An anomaly & W8 P5 J$ {2 D) \1 Nin the track may indicate a hit. Track, Birth to 9 M8 _! |% ^2 \. t, U7 pDeath Z1 O0 z& Q" AThe maintenance of an associated track through all phases of flight (i.e., boost to reentry). Track Correlation The combining of track information for identification purposes, using all available - S' p0 k2 D7 tdata. W2 I5 q# `9 Y* ?7 R8 RTrack Extension This term usually applies to improvements in track estimates by use of new data. ! m4 V: x4 ~3 n8 ~It is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 2 p {+ | O1 Q4 A, M6 iTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of the above. `' y# g7 Z- N6 @8 u8 r. DTrack File-Track History ; A5 v! [" i1 U' X6 e/ h& Q7 pA set of individual track reports on a particular object, which taken together * Z0 j6 |! r! }- gproduce useful approximation of that object's future position in space. * V$ E; w g- L& [6 zTrack Formation The process of determining the track or tracks of detected objects. It is usually a 5 s0 w+ d3 ^) m5 k/ p0 N, K: N) gthree-step process of data association, track initialization, and track improvement by filtering. Tracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and / X/ ]; P4 L" J3 ?. b$ ]) T! MPointing 3 Y- W2 m" C) ?& JOnce a target is detected, it must be followed or “tracked”. When the target is successfully tracked, a weapon is “pointed” at the target. Tracking and pointing are frequently integrated operations. Tracking Range # N8 `8 H; u: R- t5 z5 O(Max) The maximum line of sight distance at which a sensor can maintain track of an object. Track Initiation The formation of the first or initial estimate for a sensor system of the state vector 6 c9 M8 ^, u& V$ F3 mof an object. The process typically requires observation from a number of 3 [% Y9 d& G4 E4 Xframes. % ^3 M) o- v I5 c% oTrack Production Area % h; _8 q. a9 OAn 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. 8 K3 O' d# Q ~. Q- dTrack Telling The process of communicating air surveillance and tactical data information between command and control systems or between facilities within the systems. ( J, b) Z0 F0 J0 [ g% O# ?Telling may be classified into the following types: back tell; cross tell; forward tell; 0 Q8 k f: C4 |lateral tell; overlap tell; and relateral tell. $ A: N9 Y. s. A( E: F NTRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability Maximum * p, _. y2 d6 r" ]: w4 ~The maximum number of objects per unit time which the sensor system can maintain track files. " L0 }5 Q! `1 MTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high 4 f/ q! q0 ?' H4 D( f0 h1 E: Gendoatmosphere. Train Threat geometry with objects placed in a line (string) along the velocity vector of % `3 W. A6 x$ t! z0 W3 m2 Rreentry. $ z7 }- y: }/ m) ] PTrajectory The curve described by an object moving through space. - n4 V W1 l: q2 W- `' ITrajectory Histories - b4 S7 h: n9 q8 @) \, J* dTrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. & g& B- ~" z& \% `' KMDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. TRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to 4 P! z! \% g1 w% H& _7 b& [Production A risk reduction process during which the program shifts (passes) from # T; @* y; t* J& ~0 |, Fdevelopment 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) 5 Z+ W' h/ h5 Q3 M1 H5 ?# pThat component of security, which results from all measures, designed to protect : p- K2 F% e2 _# y2 h: `communications transmissions from interception and traffic analysis. (See - U( u2 L, P% n% Z, ` o' R% rCOMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative 7 a& c3 w( h" n `, Yspeed of the fluid is subsonic in some places and supersonic in others. This is % \; R4 P8 J4 d2 Aencountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. ) _) L0 y8 [2 w! @TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. " j- I% R# `5 C' ~+ HTraveling Wave Tube (TWT) * j: e* g# ?' U' X( l/ _An electronic tube in which a stream of electrons interact continuously or . y$ W# I' D& X! urepeatedly with a guided electromagnetic wave moving substantially in synchronism 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. / k' o/ F, Z9 G" `, Q1 I) O* h3 {1 N(2) A method of surveying in which lengths and directions of lines between 8 p. g5 Z0 z) Z) \+ ~. K# a, spoints 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. 6 l1 @0 S5 @: b% f3 m. aTRB Tactical Review Board. 8 d, V+ G: I! w0 oTRD Technical Requirements Document. 0 C/ v: E) w8 |- s" JTRE Tactical Receive Equipment. ! T7 l# r$ m6 q5 a9 FTREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. 9 j. | O' o9 M) Y- sTREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. p: f& `4 \; q1 s" GMDA GLOSSARY, VER. 4.0 T 306 TRG Threat Reference Guide. 0 e/ a6 n, H E& p/ B( l+ w# YTRI-TAC Tri-Service Tactical Digital Communications System. 1 h) |$ f# `- `. c- W8 J t' RTRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). 8 Y6 t( @# F& F) x5 k- cTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. : y' p' n V7 K. VTRM Technical Reference Model. TRMP Test Resources Management Plan. 5 ]4 \. \$ N# R' Q7 F+ u4 V3 H- ]TRN (1) Task Requirements Notice. (2) Test Requirements Notification. ! m2 h# X; ^) ^ K4 Q- [/ v, l4 JTrojan Horse A computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate 0 l5 w$ p/ f0 G+ z; |9 z2 t2 @authorizations of the invoking process to the detriment of security or mission 9 T# s8 c/ g* g% Q$ ^performance. " p, r% h9 X$ v# Z, hTROPO Tropospheric Scatter. Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the 0 d3 a Q9 c1 W) Datmosphere, the troposphere. The tropopause normally occurs at an altitude of about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the / v4 I M9 {3 gtropics. (See Stratosphere, Troposphere.) & L. d5 F4 w! [- R2 KTroposphere 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 ( z6 R% R# Y9 C- aless complete. Tropospheric ( ?8 ^, _/ ]2 W# v& vScatter ( _# e- ]" q" F2 A0 |The propagation of electromagnetic waves by scattering as a result of 3 J6 T. c6 J- t% o2 i! j7 Girregularities in the physical properties of the troposphere. 2 Z; `. f2 w" I. @& tTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. * e: n6 d8 j/ _) k- T1 ~, r8 M(3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. Trusted . f0 B) G. Z2 [- J. a+ `Computer : U [8 s! L; v' s+ YSystem/Software A system or its software that employs sufficient hardware and software integrity ( a, q* d1 y3 V6 N, q; f2 Z, Jmeasures 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. TRW TRW, Inc. " k% t* P' z5 | zTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 6 @1 L- `0 y% C. w. g9 b. k307 % s7 w0 U, V* j. v2 [' RTSA Technology Security Analysis. % v1 `9 ?8 a4 i) F- |TSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. TSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. 8 Z2 L2 d- r9 {! G f% D# E. l, O. zTsIAM Moscow’s Central Institute of Aviation Motors. . M) [( y- h7 m; U2 `TSM TRADOC System Manager. ; k# d$ Z3 k5 G- a$ u' w4 V5 ], XTSMA Theater of Strategic Military Action. TSP Target Support Plan. TSPI Time, Space, Position Information. 0 p) ^* z% B5 ^TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. 4 _* z- g% H$ Z t$ _TSSAM Tri-Service Standoff Attack Missile. + j f2 g( l# {# ATSWG Target Signature Working Group. TT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). 6 Y; h) P: \/ t( t2 W; f/ jTTA Total Time Accounting. , f8 ^( x) b' @$ {$ D& l+ ?. s0 FTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, 3 v( p" }2 Y( ^6 K6 i: a( Mwhich have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. & f: o) J, U8 S9 ?0 ~0 DTTP Tactics, Techniques, and Procedures. " |3 M; s! p5 C4 e, cTTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 308 9 J& l- M1 Y) R+ c' {" OTTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. - \, w9 ~8 G( Q! Q1 UTV Thrust Vectoring (rocker engineering term). 0 X& F; H6 p- rTVC Thrust Vector Control. TVE Technology Validation Experiment. TVM Track-via-Missile. $ p" W4 U( g7 x! v: H+ Z ] LTVV Technology Validation Experiment. + T* e. e5 S5 R" B! v4 STW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. & G- g, t" ]" |$ RTWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). + X% ] A/ Q$ g+ L/ j0 o8 O: RTY Then Year (PPBS term). TY$M Then Year Dollars Millions. * q1 i; R/ O- O5 d# d; ?; w7 x) \Type A - System Specification States all necessary requirements in terms of performance, including test % K( D1 S( O5 W5 _8 ?provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission 2 ]0 B! m7 P# N7 u) N. l0 Yrequirements of the system as an entity. Type B - Development Specification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the , Z: G0 z: M; [" I0 Sdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of 1 ?: c8 m# D( b; L+ m4 ~those characteristics. Type C - Product Specification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of ! D0 n G: y! a( zprimarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 6 @$ S, Y9 s5 j& z; j' n3 \items including computer programs. 1 ?3 a4 a1 y% w8 h6 U3 DTyphoon 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). 4 h/ }2 h( H+ p4 K. q6 L6 ~% o# GMDA GLOSSARY, VER. 4.0 U 309 U Uranium. ( t8 |. m. D& Y# iU&S Unified and Specified [commands] (pre-1996 term). ; e* Y- P4 n: q* X% vU.K (UK) United Kingdom. U.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. & X0 G( z# f, UUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. + M t# V) Y; N9 ~. bUAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. 8 d% S( y/ W- vUCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). 4 V7 j D: p# r- x" ^UCP Unified Command Plan. 8 E- J0 g" K! L, ^UD/ASD United Defense/Armaments Systems Division. # E, B" h ~4 X( LUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). * Q B% D" u( \# S+ |3 aUDS Universal Documentation System. A standardized comprehensive tool for stating - M) N9 D, @' s3 X. Pand coordinating program requirements for testing MRTFB ranges, as well as the 8 T! X( j9 J5 l0 ocapabilities 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)), / {8 D, a8 c5 |: w7 ~2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the R$ Z! f& a# s" s! i4 C2 b5 ^Operations Directive (OD). The UDS was developed and is regulated by the ; E# ?: x) |& G% B# jRange Commanders Council (RCC).

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UE Unit Equipment. 9 ^+ @/ a( E& S, K& \UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U 310 ! F5 e& Q' t$ J2 H7 W2 sUFG User Focus Group. 5 ~$ d; M/ I' v( o5 qUFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. " ^! j9 q4 H$ } \- m# n8 }UGF Underground Facility. # a7 g6 F/ G5 ~7 R6 @: mUGS Unattended Ground Sensors. 9 K( s: i1 L* O- j9 I! NUGT Under Ground Test. 1 `8 A8 t& U7 A; G: q" H7 }! T3 oUHF Ultra High Frequency. 0 S! W7 b4 z: j* ?8 [6 H2 h: }UIC Unit Identification Code. UIN User Interaction Node. , w5 {4 ~: g+ m) k/ l8 U* TUKAS (1) UK Architecture Study (2) UK Associate Studies. * ]; K8 p" k- H& pUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. # a% r2 R" m, b$ yULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ( ^$ X% X; W! B. D% ~ULSA Ultra Low Sidebobe Antenna. ULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet / W& ~* Z8 l. A) d" g `# T(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). $ ]+ M! {0 h6 j2 o: t/ E$ VUMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. . c6 x- j }" }9 n6 U* S. @1 j9 SUnconventional 5 K& | ^- a" n, I5 a h. u" \0 LWarfare 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 and escape, subversion, sabotage, and other operations of a low visibility, # _% |1 p; }7 k/ E/ [) v7 e# gcovert, or clandestine nature. Unified Action Armed Forces / U3 y+ g* B$ P0 L- uA publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or 1 d- @; t2 x& O7 Z9 F$ o# E. kmore Services or elements thereof are acting together. ; r' R j _$ R: SUnified Command A command with a broad continuing mission under a single commander and " `' L/ Z) P& Y+ w. R6 k6 scomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary 6 B7 \# x! s G# `1 L* }8 Hof Defense with the advice and assistance of the Joint Chiefs of Staff. ) j1 b$ r% e5 y# Y: }( K' }MDA GLOSSARY, VER. 4.0 U 311 UNISYS UNISYS Corporation. United States + Y" f, X A. ^4 RArmy & U$ Q7 E! r1 KSpace Command $ o- o8 e* N/ N8 P% a' A: n; K(USARSPACE) / I$ F" m: r4 l$ G, ?The Army component command of USSPACECOM. Responsible for the Army 5 I: m$ C2 S* }' x3 I. Oelements of the SDS system. Located in Colorado Springs, CO. United States : g& R/ k% e$ A' USpace Command (USSPACECOM) / u1 u7 A& b( x! ZThe unified command responsible for planning and conducting ballistic missile 7 a* ~4 z& N3 A0 \+ f7 hdefense. Located in Colorado Springs, CO. + B$ N/ O, _4 x* X( @; t. yUnited States Strategic Command O/ |& R v. X- r8 a* r(USSTRATCOM) % t" ~5 O3 G. Q4 \+ K. sThe DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic missile offensive combat strikes. Located at Offutt AFB, NE. United States # k! X# p+ \" ?8 tTransportation 0 R0 f3 E! ]; O5 a! WCommand 8 @. D3 y ]1 [! [3 l0 {(USTRANSCOM) 8 U! R Q3 z7 w5 z) q6 q! z; VThe DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of ' U( |( x. V( u! x* o2 Iwar. It is also responsible for providing airlift, sealift, surface transport, and 5 Y, n1 Q9 U1 T/ K# {+ D: x& n0 n5 aterminal services, and commercial air, land, and sea transportation, including as % N8 q* T* n' g9 O9 a3 u0 Sneeded to support the deployment, employment, and sustainment of U.S. forces ; c0 d& V/ Z. P. Kon a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. 8 h4 C* {) d7 C1 M2 NUnresolved Objects ~; t6 |- t4 a6 t$ p% LObjects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. UNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. 9 Y& P& n x6 V8 l& F2 ], vUOC Usable on Code (ILS term). 8 k3 i, q! i+ O# m n! N8 m0 O% KUOES See User Operational Evaluation System. 6 k! ?- u0 R3 a- H$ ?3 W/ ]UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. 0 }2 Q2 `) E. |* K4 u# O& r% cURL Uniform Resource Locator (internet protocol term). 5 ]# s: D. g6 h+ R2 P$ K) U: @& zURT Upgraded RTD. 7 v9 l& P4 p5 F o7 UUS/UK United States/United Kingdom. / v8 w+ b' N8 p F [- I8 kUSA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. * W. P ~: e! x. pMDA GLOSSARY, VER. 4.0 U 4 [/ m7 S/ f6 C/ U6 _312 * V% s( C+ N ]: K6 FUSACE United States Army Corps of Engineers. 8 @$ C# I1 u0 f3 f" a: ]& J1 L" jUSACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. 2 ^1 s% K+ Y) C5 a5 j/ c4 wUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. 5 t/ t6 e5 f; j6 WUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. 3 h5 U3 `) H9 _0 IUSAF/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. USAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. ) Y' d. u5 {0 I; }3 w- UUSAMSIC See MSIC. / n7 j5 l& \9 \4 HUSAMSAA U.S. Army Materiel Systems Analysis Activity. " _' a Z7 J: W4 V; [& {USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. / o5 K$ _; O* m( j2 Y1 WUSAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. $ ~! J) V N- x( O) |$ s9 SUSAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. 5 J G5 |0 _. \& L/ A; {! \ ]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 4 Z6 x* u* c. s* N/ F1 ^* W" sUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. 4 @$ Y2 Z# l) n6 y& l% uUSC U.S. Code. USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 5 _9 |" V7 d% n313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. * c- U5 U1 ^. ]6 A# MUSCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. 0 p& r: N5 m/ J0 i9 f ~5 Y/ t$ H/ UUSD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. 0 c: r6 N {' X" H) M. ^USD(P) Under Secretary of Defense for Policy. : j% D: t* @; e, @: B+ F& AUSDA United States Department of Agriculture. ' F0 r) Z! t3 [$ d' R: q3 G+ \USDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. 4 A: d& e$ m0 j lUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine (hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational Evaluation System (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 , w. {- I# d1 l1 |6 ]/ jtraining for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the l4 w. E: D9 p& U. ?4 ~3 Mnormal acquisition cycle. ; c: |: U v L6 M3 V6 eUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. # G" V2 Z( y7 h9 P8 T, ?" FUSFK U.S. Forces Korea. * C9 ~/ J) }: ZUSFK/CFC CSFK Combined Forces Command. USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U # s( O$ i3 O4 G314 / y. N; E9 |9 k5 r/ y( h! uUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. USMAR- 0 ?' y7 _" _) b3 P# A$ T/ T# gFORCENT $ J& Y9 X- L" r2 b$ z! p8 c# oU.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. - ?* @; R2 U0 F, b! E3 ]USMC United States Marine Corps. USMCR United States Marine Corps Reserve. 8 P1 w0 ?7 \( a3 T6 U3 SUSMILREP U.S. Military Representative. * ^% O7 b/ m+ H: L5 @$ ?USN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. & |' A' L9 |1 OUSPACFLT US Pacific Fleet. ! f. i7 B. l: OUSPACOM United States Pacific Command, Pearl Harbor, HI. 5 ~8 O* V4 h8 L! T1 K# i2 RUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. 3 R; N5 {- I, H9 sUSSOCOM United States Special Operations Command, Tampa, FL. # |; J1 A+ J1 v: R1 }USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. USSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. 7 f9 X3 ]$ |8 f/ C5 s# b3 XUTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 315 6 p$ p- Z% p& ~& {. ?9 SUTM Universal Transverse Mercator. ! R- j# T, d! \. I$ J2 }* T; Z4 ^UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. - x6 Y1 q+ X. h3 F7 D2 o9 M' hUUT Unit Under Test (ILS term). UV Ultraviolet. UV Electro- % i3 |5 R" U {$ B6 lOptics & L0 h* b, V0 @% g2 v, g z3 DTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). 5 ?; y4 e" Z" m( s# y* KUVPI Ultraviolet Plume Instrument. $ O) ?' L1 q5 x3 R8 O7 vUW Unconventional Warfare. 3 a+ V0 L# d) ?/ s7 EMDA GLOSSARY, VER. 4.0 V 8 T1 A) M& R8 R316 V Volt. / R+ ~" Y1 s/ [1 z" ?; ~V&H Vulnerability and Hardening. V&V Verification and Validation. (See Verification, Validation, and IV&V.) 2 y2 G2 u: F, Q* e* UV/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. / n9 Q/ s( n6 j9 uValidation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, tactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. * ]" r2 U* I' v; XVAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases ! n: m* m7 J2 M# N% a& Y) {with the distance from ground zero; or, in damage assessment, a mathematical 9 W* U9 ^+ i) f# R( Z# M4 Qfactor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. " ]5 J6 q1 s" y# F; f3 yVBO Vertical Burn-Out (velocity). 9 ]8 a- A$ b+ l; mVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. 2 F9 g: V0 e0 xVCS Voice Communications System. 7 Y0 D. l$ e% A8 T2 TVDC Volts Direct Current. VDD Version Description Document. VDU Visual Display Unit. . v4 J! S0 A- b! o% XVE Value Engineering. + j$ R5 v( J* d2 dVECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering / L5 W2 F9 p5 N7 X2 W% c! D. Vrepresentations 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 $ Z5 @; \9 j' R+ t2 h6 @$ \of the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. VFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. $ s7 |3 J6 |, lVHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 - }, @% b0 ]/ J* oVIDS Vehicle Integrated Defense Software (USA term). % I% c. n, G+ T8 J2 iVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional 1 f, p4 G- ^3 d% W, \% gcircuitry and commercial components. Project also demonstrates VIRGIL, a # a) u) i$ w/ }5 [2 o# G" d" 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. 6 P9 X: j) G% JVIM Vibration Isolation Module. J1 Y4 q% N1 a7 |% @ U& a0 zVINSON Encrypted Ultra High Frequency Communications System. VIS Visible. $ Q/ }, R# h* v {/ \, PVIS/UV Visible/Ultraviolet. : F! R6 [7 ^2 m7 y% Q0 [Visibility Range & Y% j4 Z4 R/ |4 ~7 n4 T(or Visibility) ' R0 B# t/ r1 t5 }- ^The horizontal distance (in kilometers or miles) at which a large dark object can just be seen against the horizon’s sky in daylight. The visibility is related to the clarity of the atmosphere ranging from 170 miles (280 kilometers) for an 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 ' u" f: ?6 e) n* d, Z5 Pkilometers). Visible Electro- 9 e, o- D/ H. O4 lOptics : v: e- Y# b2 w" b$ f; w$ E0 PTechnologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. ; ]0 x9 `6 I' @8 @2 D! ZVLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. : g7 A, l9 }; Q! A! I9 U, d1 sVLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. - M" r5 p' c! Z- J- BVLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). - P3 [8 C5 Y: y/ k3 sVOX Voice Actuation. 2 M' ], q) r5 MVRI Vanguard Research, Inc., Fairfax, VA. % k5 c/ y/ V ]& |0 VVTC Video Teleconference. / g, e3 V& y, V: p8 u" @VTOL Vertical Takeoff and Landing [aircraft]. % e4 C( O( R @VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. 7 C. V" W; A$ b" H) U7 CVUE Visible Light/Ultraviolet Experiment. : @" l4 p9 n2 K; r) F2 Z# C5 @MDA GLOSSARY, VER. 4.0 V 318 6 K& L9 \% L' kVulcan UK bomber. 8 ]7 E0 ]+ [* NVV&A Verification, Validation, and Accreditation. % L* L- D& S" W& J A. N9 D9 rVVER Pressurized water type nuclear power reactor. ( Y+ H2 u- D- n4 G) l: bVVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W 319 $ T( u5 |" m( K* U5 h& Z* u: IW/ With. w/o Without. W/TD Warning/Threat Detection. 5 L5 E, |% S/ d+ b! E2 NWAA Wide Aperture Array. 3 v0 R5 k& n2 B& nWALEX Warfare Analysis Laboratory Exercise. & b! R3 i; Y( P, F7 b+ }$ \* n0 a nWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. , [7 N* n$ _* I+ q0 UWAN Wide Area Network (Telecomm/Computer term). 5 M+ i7 S( _1 q3 M! JWAP Wide Azimuth Probe. 6 H8 F/ R& S$ |9 tWar Game A simulation, by whatever means, of a military operation involving two or more 0 j. X8 ?6 @2 o: ]opposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. M* c& S! ^- Y. n& S+ jWargame 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, & }5 x; B: A* d" q/ {validation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, 3 E3 N4 U3 W( O6 O' aairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related ) |( D. F2 |9 |) icomponents. 6 q+ T$ }8 W. V4 n! `4 X" [WARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its 5 S6 T; g; Z, Tarmed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). 3 ~% ~5 G, @1 S. F; B8 ~WARSIM 2000 Warfighter Simulation 2000 (US Army term). / @5 r: B! m; b6 ~Wartime Reserve Modes (WARM) # `: x8 U0 I, W% ?Characteristics 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 % ]; q8 a" A' [8 zwartime or emergency use and seldom, if ever, applied or intercepted prior to / f$ ]5 Y& W( n" e" @5 Lsuch use. WAS Wide Area Sensor. 6 I, d: I# O8 o3 F) M3 E7 eWASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 $ R! g' e% [, r& ]WASHDC Washington, District of Columbia. - P" k: ]2 Q" ` A: XWastage (Max) The maximum number of defense weapons which, when used, will be ineffective 0 O/ v# j( i9 k* N7 Min contributing to the defeat of the offense. Watch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs * t+ F' I' j( x, I4 cto watchfulness without raising DEFCON. 7 v- Y% s* e6 s4 a4 T* c( oWATS Wide Area Telephone System. ; A: c$ U3 q( H9 x; IWAVE Wideband Angular Vibration Experiment. " k4 B0 K0 [5 |, M* a" UWavelength The distance between two points having the same phase in two consecutive . C; E/ U6 ]1 Z. ^7 i" G! [9 Ucycles of a periodic wave, along a line in the direction of propagation. WB Wideband. ; u3 X" `: I! G( h; k# P& dWBM Weapons Battle Manager(s). % y! v' z2 @7 A3 [& e" V. pWBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). 0 x% m4 z) b. \% S! p2 JWCP (1) Weapon Control Processor. (2) Weapon Control Platform. & n8 u& `9 s3 b2 }4 K+ KWCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be " O V5 S v7 n/ y& Ulaunched.