航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 5 O" ]- r9 F0 O+ N; L+ f' u. N3 l. u# o298 Theater Missile - {' l5 F) a, I0 |$ R* I' zDefense Council 9 v! ~/ f2 c. ]. _2 [6 k$ }(TMDC) A consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for / f% y. X: W( c% o$ FAcquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents . Y8 _$ {/ _4 k* ?2 v$ _8 Land Program Managers. Theater High 6 P" J( z) Z O4 y$ n$ h% ~6 UAltitude Area Defense System ! C' n/ l) m- i' ^& _5 K. D" S(THAAD) * N2 k2 F% a8 [1 OA ground-based, air transportable interceptor system that will provide wide area - V5 u2 a1 p6 F2 `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 5 U/ V7 Y* T! JPATRIOT. Theater Missile (TM) " b0 D) \0 ?0 M1 s8 n5 p3 Y9 CA 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 % l% F$ W6 p* g+ u8 Vof attacking targets in a theater. Theater Missile Defense (TMD) 4 i. j$ F& f5 p6 a: M1 F6 IOBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, 7 r6 L/ {2 G+ e& Y! _intermediate-range, or medium-range ballistic missiles. Theater Missile Defense Ground- 7 S- i, O/ k6 Z+ I! e3 g" ZBased Radar 8 W8 F! H3 j4 V) t+ q% P(TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and ! M. m) e+ J' o+ f( M& Vdiscrimination capabilities for the THAAD interceptor system. Also referred to as 1 t n! X' \. H1 |( S0 wTHAAD Radar. 8 s& b. u/ G% b7 q4 ~. x( E3 i) bTheater Missile $ F; B9 N+ A" V' @! d- XDefense Initiative (TMDI) ( e. ], u) ? c8 s6 p7 Y0 aAn 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. THEL Tactical High Energy Laser. 9 J6 ], v4 G) G' _5 nThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. 1 X, E) E7 V, }1 q/ jThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree 7 S: R4 n: A7 R) ^5 h4 Hthat structural components fail. . m! x# Z& e* D5 x6 O8 gThermal 4 t2 J& D Z# H2 {Management Technologies/techniques associated with the control and management of " ~+ Z3 O% D5 g# J zthermal energy, its generation, dissipation, and recovery. Thermal 1 _. Z! y+ p& PRadiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the 7 L* x' A) f7 j9 x0 E, v# gfireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, ; {- K5 O$ j) Y" D: I2 b5 f4 @emitted by the nuclear weapon residue by virtue of its extremely high , l6 Z8 ^1 l+ ^' @& Ytemperature; it also is referred to as the primary thermal radiation. It is the / K+ s2 u0 N# D: V. pabsorption of this radiation by the ambient medium, accompanied by an increase - E9 Z9 X* w0 x! S/ Pin temperature, which results in the formation of the fireball (or other heated ' G+ Q3 _; d; }1 w( kregion) which then emits thermal radiation. (See X-Rays.) / {5 b& H- D: |8 V* A' @MDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; it is a region of more or less steadily increasing temperature with height, starting " q/ D2 N0 X+ ~; ^0 D }at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. ) q/ k8 a# J$ HThreat Characterization ) A: o- E& q! q. p" g" `An assessment of the nature, magnitude and intent of an attack in progress. 9 u* @5 a3 C a! e: n: _; tThreat Corridor (Threat Tube) ) k7 _9 v) L3 f. c oA tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object % S9 M1 b3 V5 b" i% {; h3 Gtrajectories to be represented by a single trajectory in battle management computation. * G0 s! Y. H9 o( u8 S2 TThreat Scenario A hypothetical example of the employment of threat systems against ballistic , z7 r+ E9 J/ C$ h, L- s2 \missile defenses for the purpose of analysis and evaluation of those defensive $ D6 I9 ~" @; Z, Esystems and architectures. 7 b- o# x: z: z$ X- |Threshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. Threshold Defense A defense strategy that concedes that the target can be destroyed at a price that is not prohibitive, but the presence of the defense is thought to require the offense to mount a relatively large and complex attack. 8 Y( |6 j) _; D$ S( yThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted Replicas (TREPS) 2 e$ x- R- a* i) ZConical decoys equipped with a miniature rocket device. Generally used to 3 ~4 ~( T3 N" Rchange the decoy’s optical signature to resemble that of an RV in the reentry 6 B( D# m" W9 G+ G7 X+ X) @: xphase. TI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. / r, V3 N: d+ y' I/ i; {! g8 m(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. * n! W# p; N; L% V. \9 fTIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat (e.g., boost phase). Tiered 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. TIL Technical Insertion Laboratory. ( J) E) I% R! j9 H# ]6 y2 j3 B% `TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T 300 / B1 c) o' [6 Y7 S0 oTime-Phased ( Z6 @6 _! n6 J: YForce and % F3 {1 [$ Q0 r) F- |( t$ W: EDeployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual units required to support the operation plan and indicates origin and ports of 4 a# y, Q4 m& Q; {( Ndebarkation or ocean area. 1 N# B' C. x8 X: v% iTime of Flight . N- }9 m- C) G8 k(Max) $ r% S. C3 T/ r9 t& `9 mThe maximum time for a booster or vehicle to perform its function from time of launch. : \. ~2 z E1 ?) q+ G( E2 y1 X1 JTime on Station The time the sensor is in its operating position. Time Sensitive Targets 9 N! s; w4 @* r! K) W+ `Those target requiring immediate response because they pose (or will soon : S2 f; V! i- n9 A" jpose) a clear and present danger to friendly forces or are highly lucrative, 0 m" l/ V J4 v8 Kfleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. TIP TOPAZ International Program. ( R) k) {% H" FTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar 7 d( ?) U0 x0 f: Z, t4 QTerminal (GBRT).) & S; I6 V- W6 \5 \) jTIRS Telemetry, Instrumentation and Range Safety 3 p6 l. ?( x$ J {: o6 |2 DTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. + r# r& d8 a& T8 B. _! eTitan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. TLA Time Line Analysis. : s, F. m# ^, y: V3 Y# i* J1 I+ {TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. TLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army + F0 b- g' e& L* m7 S" u! Fterm). TMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 301 TMD C 3 % j& c0 g7 C# G; m- _1 N- YI Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. ' s: m& G! b) N1 h4 f6 I3 eTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). . c+ o3 C# v2 ?& X9 R; L% iTMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. + h' q* w% N4 v, x3 c, l: kTMDE Test Measurement and Diagnostic Equipment (ILS term). ! d! @1 {# b; C# z! sTMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. # N g3 ^% i- Q J1 TTMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. ; Q9 j, {8 |) l1 R; P) ?TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. * Z1 K& n# s. h7 q STNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. ; I. w6 M8 L3 E, S7 u; ZTOA Total Obligation Authority. 3 R" w- l% ]4 T5 {6 b( OTOAM Tactical Air Operations Module. ( e* y! l! m) W6 ^1 @# ~- F3 g% }TOC Tactical Operations Center. & r+ |% C5 n b* z& \: i$ y: \- BTOE Table of Organization and Equipment. 3 R$ E9 j4 n% t$ J# W5 k. zTOF Time of Flight. : y1 n7 |1 Y* P/ S$ [9 ZTOI Track of Interest. TOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T % I4 p# p: p) h* N$ @302 TOMD Task Radar Management Details. 4 z" o0 \9 m& Y& t& LTOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). w6 L3 g* O" t" M( g3 M cTOO Target of Opportunity. TOOL Target of Opportunity Launch. TOP Task Order Plan. 4 N2 C2 c" ^! m/ L: I- M/ KTop-Down Pertaining to an approach that starts with the highest-level component of a hierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. 0 p- R) r! b" t! ZTop-Down 6 S% \2 f- R7 c9 i; vDesign The process of designing a system by identifying its major components, 5 G& e: y1 r# u9 Cdecomposing them into their lower level components, and iterating until the , k, v$ }& k9 |6 i }1 p: \/ `desired level of detail is achieved. Top-Down Testing The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. + h& n- X7 V+ ?0 ~5 R7 dTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power ; [, x5 u( ~( ~# x+ Otechnology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target J9 j8 P- C( ?) A4 c8 p) jTotal Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given ; a" I! |: Y1 |6 n' x! \- Efiscal year. : V$ y( W7 p7 R7 qTotal Quality * v4 v9 B1 }7 }4 K( QManagement (TQM) 7 ~. ? L( P8 B: B9 D$ n* UA management philosophy committed to a focus on continuous improvement to 7 i* M' @9 B; }8 Dproduct and services with the involvement of the entire workforce. 5 s2 q( U9 M; I- } R, R, YTOTS Target Oriented Tracking System , i3 Z' i+ Y. i' ATOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. N$ h. l% G: o# C9 gTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). . X8 e3 C7 n: t; ITPDR Total Processing Data Rate (TelComm/Computer term). ! ]1 c/ h N7 K! O8 fMDA GLOSSARY, VER. 4.0 T 303 TPEC THAAD Performance Evaluation Center. " F8 {) D! H" i9 A! NTPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. 5 n( \% B3 f2 [' E5 J" I! BTPFDDL Time-Phased Force Deployment Data List. 7 V& O7 k9 f8 d4 KTPFDL Time-Phased Force Deployment List. $ ]0 n7 \- L: `. z2 B2 LTPM Technical Performance Measurement. ; H0 D) c: \ [' ~' x, [' o0 eTPMT 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 7 u0 @; z% r; m, I$ E2 u; j* y* TPerformance Report. TPS Thermal Protection System. . ~( Q! c: [2 J3 STPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) 3 }. [: R, M ?% b9 tTQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or ( z$ d' [5 t }3 b4 ^5 wdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and constraints. " {0 ^' k4 p: F# p5 s F8 {3 J(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. 7 Y: x# ]' B: i0 b(2) To display or record the successive positions of a moving object. (3) To lock onto a point of radiation and obtain guidance from. , s- A( g2 L9 {8 t8 `: o s(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 Assessment - h# k; j; V% G$ ^* f* j( a* ], o3 l# MThe Track Assessment looks for anomalies in an object’s track data. An anomaly : n* H' _8 r6 E' [3 F2 u) k Oin the track may indicate a hit. Track, Birth to 1 B! V" Y8 F6 V+ hDeath 6 F& g: ~" g" m# R/ LThe maintenance of an associated track through all phases of flight (i.e., boost to reentry). m. q: X# `+ r$ STrack Correlation The combining of track information for identification purposes, using all available 9 u P& {) x: G( [4 F+ M* ^) L3 R; Tdata. ) d F# Y7 `: c7 E5 u" n& I. S4 ]8 |6 qTrack Extension This term usually applies to improvements in track estimates by use of new data. 0 X8 x: K/ \+ }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 ; w0 |3 i( W4 j" f' x1 M. n5 G6 P+ lTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS . R+ d& Y- I+ L8 w5 p$ k+ @measurements with irradiances with confidence of association; or some subset of the above. 9 c2 L$ Z \" j R' K/ b9 B6 H/ I& \Track File-Track 3 N* X- `( U, D& m" V- y$ s" O; X$ wHistory 9 q3 t- L! I1 w& n$ N" ^, r: UA set of individual track reports on a particular object, which taken together 6 b) B3 }: W3 B4 p# j* N& @produce useful approximation of that object's future position in space. 3 c9 U0 }4 M ~% j) \Track Formation The process of determining the track or tracks of detected objects. It is usually a three-step process of data association, track initialization, and track improvement by filtering. Tracking The act of generating and maintaining a time history of an object's position and $ c4 _' d0 h. Y0 I8 H% x: Wany other features of interest. ) ]( s/ q9 u1 a' R' ~8 R+ n3 M9 Z7 cTracking and . ^7 N. p$ y* h6 Z2 k) S$ PPointing Once a target is detected, it must be followed or “tracked”. When the target is # i/ V; ^+ Z! r) b) f/ Msuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing ) h g+ D" A7 o- ^" [7 [are frequently integrated operations. Tracking Range (Max) 0 J4 n6 a# m/ @# \. b8 Z4 g, s- ZThe maximum line of sight distance at which a sensor can maintain track of an object. ( c( c- J) I" `' J$ l; R9 VTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector of an object. The process typically requires observation from a number of frames. 4 w; P% M( V0 `4 ?! UTrack Production - B" e' {8 l. ~* xArea An area in which tracks are produced by one radar station. 0 [! x' s* _7 y1 `3 m% ?$ M- YTrack Symbology Symbols used to display tracks on a data console or other display device. Track Telling The process of communicating air surveillance and tactical data information 5 [3 C- d# Q& abetween command and control systems or between facilities within the systems. : q# E E* y) a* U: o6 C2 V3 p5 aTelling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. 7 K# ^+ m4 V9 c% c/ h- gTraffic Capability Maximum 9 P4 K# Y8 n; s! u4 y( T" EThe maximum number of objects per unit time which the sensor system can maintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. 3 C( g: T; N) K3 {. s, C8 @- cTrain Threat geometry with objects placed in a line (string) along the velocity vector of ( d% w% O& d+ @% i; c( zreentry. * S) Z2 }; A2 [& F, Z* vTrajectory The curve described by an object moving through space. 0 y1 g) S3 e* c- ^Trajectory # z, [3 r8 c+ f* \8 h6 M- FHistories $ U+ ~& S3 S) R. WTrajectory 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. MDA 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 Production % B7 [, d5 u/ K5 ?% W( {' _A risk reduction process during which the program shifts (passes) from # t4 O9 k. K: x5 w5 `/ udevelopment to production. It is not an exact point, but is described as a 9 b v4 V% ?5 l; X% x. `& u! Fprocess consisting of disciplined engineering and logistics management to 9 X7 P$ y5 L5 G# Aensure the system is ready for manufacture. (See DoD 4245.7-M.) + o* [. _0 ^, k3 ]" ~2 YTransmission 5 u0 k$ e( I0 V7 wSecurity (TRANSEC) That component of security, which results from all measures, designed to protect 6 f( Y* w. J* E8 \. u* F; mcommunications 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 & m, ~9 o$ s, A$ `$ R: B; \& Zspeed 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. ! [. b8 V( F0 iTrap Door A hidden software or hardware mechanism that permits system security " R% ?1 g& M! n6 N+ X+ R; _mechanisms to be circumvented. Traveling Wave Tube (TWT) An electronic tube in which a stream of electrons interact continuously or 1 e6 O+ ~4 d: f& @' ?9 crepeatedly 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. (2) A method of surveying in which lengths and directions of lines between points on the earth are obtained by or from field measurements, and ) `3 f4 K7 \, R% j( x1 T$ Jused in determining positions of the points. 9 L, N' @& Y; T2 k3 J" B6 C5 ZTraverse Level That vertical displacement above low-level air defense systems, expressed both as a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. 0 V, W2 P4 ?$ rTRD Technical Requirements Document. 8 ]; u7 s3 ^8 }- i& q; S. P, Z' {TRE Tactical Receive Equipment. 9 J% W4 u( n: e8 N; GTREA Transmit/Receive Element Array (THAAD). + O& b9 c/ i+ v2 u9 OTREE Transient Radiation Effects on Electronics. # t& E: f. m- W) l& I5 {3 KTREM Total Radiation Environment Model. - d5 A$ Z+ w1 N7 sTREPS See Thrusted Replicas. 7 U/ D# b) h& F- O1 hTRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T % t& \9 r+ o( A1 _ h- M306 TRG Threat Reference Guide. 3 y2 V0 U. ~$ t8 K' P B9 mTRI-TAC Tri-Service Tactical Digital Communications System. , a. J' `" B. w. A' UTRIDENT Class of US ballistic missile submarines (USN term). # H; B7 i8 i+ h7 tTRIDENT I (C-4) US SLBM (USN term). 7 Y( W D3 ]# Y/ h8 G4 N+ pTRIDENT II (D-5) US SLBM (USN term). * h' s% n6 J. T) HTRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. 5 |! q9 c6 ]6 @. x! T) y7 pTRMP 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 " e0 Y; }8 A/ \0 W7 x$ aadditional (hidden) functions that surreptitiously exploit the legitimate 2 Q( A6 l1 @* D8 Qauthorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the 3 ]; ~+ S( S! Patmosphere, the troposphere. The tropopause normally occurs at an altitude of M4 w9 p% H: `' U- p4 H* C. O% Wabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the tropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to the tropopause, in which the temperature falls fairly regularly with increasing , Q4 H8 R, L5 g. maltitude, clouds form, convection is active, and mixing is continuous and more or - `# Z: B8 W2 A+ L6 W; y1 s4 hless complete. Tropospheric 6 Z& x2 B: L# Y* z7 m: [Scatter The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. 6 S* r( n$ H% J( R" a5 z' ?1 D) xTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). % r* X0 h+ g2 Z# |: _# _" c! [(4) Technical Requirements Package. 3 }8 X% u. q6 r6 oTRPC Technology Readiness Planning Committee. 5 C: V; @0 N# W9 R' U2 T1 H8 N- Z" pTRR Test Readiness Review. 8 t" e) Z. [( M/ L: uTrusted 8 n, Z+ a( ^5 DComputer System/Software A system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. + G }- c( r7 h x gTrusted 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. ( b. c0 y) X1 K1 }$ `" U, L. @TRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T * C7 |; f" s8 Y7 r' r+ `307 TSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. 6 E$ C- o, w- u1 j6 GTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. - \' j5 n# s- \/ U$ u% l8 `3 QTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. * C7 T' t6 O4 }& \2 ~2 CTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. 6 [) r3 e7 |' S, A/ d; p1 [TSMA Theater of Strategic Military Action. 8 t% q2 `# w7 }$ S" j- fTSP Target Support Plan. TSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. 5 C7 V; b: X7 ~TSSAM Tri-Service Standoff Attack Missile. / }! V, S3 _" X4 g# o4 N" q0 c- wTSWG Target Signature Working Group. TT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. , Q, k5 H4 H0 o( ?TTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. 0 V( u. J% D: }7 [% |4 tTTD&D Test Technology Development and Demonstration. A portion of the CTEIP + M& p' H& \3 m/ F2 G) ~' Y) l4 Yprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. 6 |3 U9 S: Y* X* k" w8 yTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. 8 ^& Q# t% _5 J, ?TTSARB Technology Transfer and Security Assistance Review Board. - t/ j" Z8 n* V5 R9 i# C rTTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 308 TTV Technology Test Vehicle. TTY Teletype. / T7 K! Z! k7 X9 y; S+ h3 q2 ETUG TRACE User Group. ' q9 t. q2 k: Z# L G1 O" j/ UTV Thrust Vectoring (rocker engineering term). - p7 x$ I) Y* J+ v. OTVC Thrust Vector Control. $ g. y2 m5 K3 [TVE Technology Validation Experiment. 1 R$ S; v5 J# H- {( j- S2 t! jTVM Track-via-Missile. TVV Technology Validation Experiment. 5 F( U$ w0 E& M, h( gTW Tactical Warning. , J; i$ z9 R+ _8 O, J( [* ], F! hTW/AA See Tactical Warning/Attack Assessment. 7 d; ]8 F; e. X u8 f# STW/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). % Q; v2 d w, _- Y- VTY Then Year (PPBS term). TY$M Then Year Dollars Millions. Type A - System Specification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission 9 x) a4 {0 c/ ~, b+ hrequirements of the system as an entity. 2 t* A4 @2 Q) @+ J! c- MType B - 3 u6 @5 c. e9 }/ BDevelopment Specification ' V4 g# G) j1 c2 W rStates all necessary requirements in terms of performance. Essential physical 2 H$ ?, U& z Y( I; m8 e, U! ~! @constraints are included. Type B specifications state requirements for the 7 I- i1 R1 y$ Q6 H5 X5 Ldevelopment of items other than systems. They specify all of the required item ( u0 }& F5 m1 [4 gfunctional characteristics and the tests required to demonstrate achievement of those characteristics. 5 F; N* h% n. z) T/ fType C - Product : C& u( g/ ^# e2 ~* L: t1 Z& L; BSpecification Product specifications are applicable to any item below the system level, and 5 b+ F8 e+ X8 c6 f% imay be oriented toward procurement of a product through specification of " s' G1 G' i/ s" \primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 8 |9 b! t$ ]7 N. G, Z0 N! {items including computer programs. Typhoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a ( N( S% c1 p9 J' kset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 U Uranium. & e) g6 f" [5 |+ u* u; T9 V7 J% sU&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. - g0 s: I7 O; x5 m( N; ~8 X- CU.S. (US) United States. $ `: B2 b$ f) A$ Q- Z/ b' tU.S. West U.S. West Incorporated. # c6 g' o2 f5 u4 f* k+ \, oU.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. UAV Unmanned Aerial Vehicle. # ^; @8 [) q) J2 h# W+ fUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. + k v+ F5 }' x0 S, wUCC Uniform Commercial Code (US legal term). 9 I) A" E$ ~+ M2 M/ i# f" G& sUCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. % w2 n0 v$ f- e* {' AUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating and coordinating program requirements for testing MRTFB ranges, as well as the capabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the $ @7 {" T" k1 a6 RProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. ' p, c8 p0 j# J, N) gUEME Unified Electro-Magnetic Effects. 3 E# c2 f9 V2 C# x5 z4 @2 WUEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. 8 Q" `! e# p$ w# }" D* o3 p* x( jMDA GLOSSARY, VER. 4.0 U 3 i' X& J* p/ y! D7 g: ^0 |9 M310 UFG User Focus Group. ( w4 ~4 f" `% {$ {7 [UFO UHF Follow-On [Satellite Communications System]. 7 ^9 n5 r% Q0 [2 l) }; ]1 gUFP Unit Flyaway Price. UGF Underground Facility. UGS Unattended Ground Sensors. 3 r# } |9 k V- cUGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. UIN User Interaction Node. : L, o# n5 f( o( n" \# ~8 Z; uUKAS (1) UK Architecture Study (2) UK Associate Studies. UKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. + e- B2 z/ S2 x7 x, j: r* fULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. 2 S- \( }- J5 q! c( M; AULTDS Unit Level Tactical Data Switch (SINCGARS term). ' C6 G3 G# z* f: K- J' GUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). UMD Unit Manning Document. 4 W3 ~4 V8 q% I6 h# k9 n7 |0 XUMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. / U" ~ \4 t- c6 w( ZUnconventional Warfare 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, covert, or clandestine nature. , r: I- ~2 ?+ c. m& r9 f2 mUnified Action 1 `% s$ M8 s7 F+ z) {Armed Forces : S- L- X& N3 O9 YA publication setting forth the principles, doctrines, and functions governing the ' }, ^+ x) E8 ]0 U6 x3 s( ?6 G' _- _( Mactivities and performance of the Armed Forces of the United States when two or more Services or elements thereof are acting together. - |4 `7 [& r+ ?: h5 e$ VUnified Command A command with a broad continuing mission under a single commander and 6 U( g1 B! H5 Y- R+ k2 Y' N! Tcomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary 6 k+ V' q: G9 ^) ], c Mof Defense with the advice and assistance of the Joint Chiefs of Staff. p; n9 L" C u; Q9 [* p$ }3 x& xMDA GLOSSARY, VER. 4.0 U ' Z1 [1 B5 `" ^8 o( D6 g, j9 ^ Z311 UNISYS UNISYS Corporation. United States 9 j, a( p6 x: g# }Army Space Command (USARSPACE) ( R1 l' D7 J; b' [The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States Space Command (USSPACECOM) The unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States Strategic Command 6 o) c) h9 ^/ }& a(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic 3 Q6 T8 s! T, J+ U# Pmissile offensive combat strikes. Located at Offutt AFB, NE. United States Transportation Command (USTRANSCOM) / B. r* Z& h c- P& m$ A yThe DoD unified command responsible for providing air, land, and sea " I. X3 G: i/ r& Utransportation 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 9 k/ L, Z( `6 {$ t- Y) x4 cneeded to support the deployment, employment, and sustainment of U.S. forces on a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. 9 i( y/ q* n9 Q% k* oUnresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be 2 S; l2 X, x6 z& s! i9 Jindistinguishable from a single object. UNSC United Nations Security Council. 2 H; Y( t# l/ C; C& c9 AUnSecEnergy Under Secretary of Energy. & y2 T3 X, F1 ~: J% uUOC Usable on Code (ILS term). ) X+ K- y3 j2 ^UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. ; Z, ~1 w% }3 w! ZUPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). 5 p* r6 q# c! ?) X+ J7 IURIP University Research Initiative Support Program. ) N. [2 i$ n- O" K6 i" wURL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. % U6 T; P( |+ h/ |" {US/UK United States/United Kingdom. ( }" N' F7 H/ K. }: \, H3 s- `USA (1) United States Army. (2) Under Secretary of the Army. / u0 D$ F. S, g! u1 T, AUSAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. : v$ Y: @" I: f u$ {* {MDA GLOSSARY, VER. 4.0 U 312 USACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. 0 ?9 ~& S7 o9 Q% o3 t9 t# OUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. + Z- z, a1 \1 J- k$ u& q0 MUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF 0 i6 L/ W/ [5 L3 sSystems Command /SSD. USAF/OTEC U.S. Air Force Operational Test and Evaluation Center. USAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. 4 M9 b! r `! u( E& F( `4 lUSAFLANT U.S. Air Force, U.S. Atlantic Command. % N2 ^+ |" K. iUSAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. ' n- Q' v, r! s9 vUSAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. 3 T. b( m/ N5 s0 g9 b5 \4 v1 vUSAOTEC U.S. Army Operational Test and Evaluation Command. ' H7 S8 L1 X5 M4 r% l! BUSARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. B% L; V7 \( D2 {4 E. j/ e bUSARLANT U.S. Army Forces, U.S. Atlantic Command. : Z. d, E6 o4 K4 }! CUSARPAC U.S. Army Forces, U.S. Pacific Command. . y( [% t4 c: K2 X7 \8 I$ }: p' fUSARSPACE See United States Army Space Command. 7 }) X: r! e8 f: |7 ~1 KUSASDC U.S. Army Strategic Defense Command (<1Oct 92). 3 |) G& N* m" U7 V( Q' r oUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. ; O8 N3 n8 [! w% ]: jUSATRADOC U.S. Army Training and Doctrine Command. ; C/ f0 ~! p# ^) l% ]# r3 x4 Y' TUSB Upgraded SBD. USC U.S. Code. USCENTAF U.S. Central Command Air Forces. 8 @1 l7 U% e/ g1 I7 [6 q; NMDA GLOSSARY, VER. 4.0 U 7 o/ L1 h. u) h2 v* Q313 5 S/ @* I) q t) i) w HUSCENTCOM United States Central Command, MacDill AFB, FL. ) @" b1 M4 Q$ P8 eUSCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. ) z0 Z, q* {- G4 `* s- q# nUSCINCEUR U.S. Commander in Chief, Europe. " H! k/ s/ t K/ I A! ^USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. ; m Q& Q5 [" S* s! {USCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. USD Under Secretary of Defense. 8 Q0 \+ ` a; ^" e( f5 J3 xUSD(A&T) Undersecretary of Defense (Acquisition and Technology). * A/ R* g! N% N5 ]& ?* yUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). * \6 Z: x% K7 D6 r4 [USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. # u3 ?, u, e( Y1 S: l6 h pUSDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. & I5 D. p& T7 F6 AUser 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. 8 L4 k) w- R- A# U; UUser Operational 4 M0 L* [2 r5 R: D, @' FEvaluation 4 B0 I4 U! `& y/ c8 u2 ^System (UOES) Prototypical system developed and tested as part of the early phases of the # r! O) y- M! P$ _3 _; pdevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the 6 x( y3 ^4 J' b+ N' Jnormal acquisition cycle. , p. a5 d+ M9 o1 p# ^- `6 W, C& cUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. * K. l) a7 ~3 TUSFJ U.S. Forces Japan. USFK U.S. Forces Korea. 0 d3 }- s+ k: }$ r0 JUSFK/CFC CSFK Combined Forces Command. ( L. o, U$ X' b+ aUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U U1 F3 h( N. H* t/ ]314 USLANTCOM United States Atlantic Command (Now see USACOM). % y& E# p4 t+ t) ^3 z- JUSLANTFLT U.S. Atlantic Fleet. USMAR- ; b+ b+ J' h/ u" w7 f& ]) Y7 fFORCENT @5 t# ]8 v7 E$ T+ y# n9 ^U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. / }' V2 l8 i* |7 [% v: iUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. 7 p- s/ {/ {8 e- `8 |USMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. . u/ m# }; A! J9 L5 M* h" OUSN United States Navy. ' [! @- r7 {0 Q. t: eUSNAVCENT U.S. Naval Forces, U.S. Central Command. $ K& `4 s e) N5 |USNAVEUR U.S. Naval Forces, U.S. European Command. + \ K7 m+ t& D8 @! `0 WUSNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. 7 {7 c# [0 p) P% M f' QUSPACAF U.S. Air Forces, U.S. Pacific Command. * w% A5 i0 Y2 M( M$ g# P1 cUSPACFLT US Pacific Fleet. 8 j+ d" P4 E6 P0 Y8 ZUSPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. 0 P. Y. B7 t" K Q# Y6 I4 HUSSOCOM United States Special Operations Command, Tampa, FL. T1 K4 w- b' x) h% LUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. 8 ~& H g3 b4 T4 G' ^& D4 a3 hUSSPACECOM See United States Space Command. USSS United States Secret Service. 2 C- f0 Q6 i& ?. O1 R' v3 _USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. 1 Q9 `& `/ w1 a7 i6 t& Q8 J+ @1 R Y: QUTC Unit Type Code. * X2 |4 ?6 L d' j6 A3 QMDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. 6 K: h) F6 ^, j$ SUUT Unit Under Test (ILS term). UV Ultraviolet. " z% K+ r2 l2 GUV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength & U5 l$ ~% _* |6 W7 jspectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V $ v, h# Q5 T1 U% Y' `) d: V4 R' w& n316 q- c' }% ]5 J. V% qV Volt. V&H Vulnerability and Hardening. ; t: M7 [' K: pV&V Verification and Validation. (See Verification, Validation, and IV&V.) : L% A7 Z0 n dV/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. ) L: J9 M: n# T, C1 X& R' KValidation 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. 7 i- ?% m" r) o$ B: s7 c _% Q/ N WVAMOSC Visibility and Management of O&S Costs. 3 m+ @6 Q; p( `/ j/ Y# LVAR Visitor Access Request. 8 [, S% P$ [' {' s: `6 WVariability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical factor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). - s }2 D3 f0 y- zVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. , Z9 B; A$ B" ]3 uVDC Volts Direct Current. VDD 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 5 D; r' C \7 ?6 Trepresentations of a T&E resource accurately portray the characteristics, / e& \) Y% ^: M# M# kcalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified % ?! f, V: I8 i+ A5 Y2 M, f) trequirements. VESA Video Electronics Standards Association. * Z4 S; p' \5 Y7 t, ]VFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. ' w9 _9 z+ f1 E" X0 iVHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 0 w( } R4 O; _9 [& K; W; [317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D 5 h2 S* k1 {% D/ f& {: t! WExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a : F$ e- B7 b: g7 l7 X- u5 hgimbaled airborne sensor with visible, experimental UV and quantum-well IR / H3 V2 o/ T; f7 d4 N) S6 l0 bcameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. # b0 m3 P) e6 \) SVIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. ; d a( I9 e7 R+ }% nVIS Visible. VIS/UV Visible/Ultraviolet. n5 S% b) c% d, ~9 H: N& ?) z6 ?Visibility Range (or Visibility) 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 ; g) }2 W' P5 l, }3 mclarity 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 / e& W0 Q/ s. k/ wthe wavelength spectrum. 3 j- ?. i" J! `/ \( M: m7 JVLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. - X( x; G# s) r3 {% D! IVLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. 9 s S& r4 N2 t. \VME Versa Modular European [standards]. 5 X) p u5 S0 e" p2 WVMF Variable Message Format (Telecomm term). : |% M7 M8 b; x9 i' G5 u3 T; EVOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. ; e: w& f9 p+ Q3 S8 s3 DVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. . u/ D) k+ j) n; \6 x/ IVUE Visible Light/Ultraviolet Experiment. " f% W! ~" ^! Y) u" TMDA GLOSSARY, VER. 4.0 V % P {8 J( z$ T( b318 Vulcan UK bomber. 9 K W4 [0 M0 M% n, fVV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. $ t* z. t+ U6 u6 J7 T- p H% {MDA GLOSSARY, VER. 4.0 W 319 W/ With. w/o Without. " P. I7 v# e3 t( [4 q9 fW/TD Warning/Threat Detection. + _; K' e9 F2 ?4 qWAA Wide Aperture Array. / n4 j# T/ Q8 d3 s: p1 S! nWALEX 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). ! O, M8 u4 s5 O, D4 I0 P8 hWAP Wide Azimuth Probe. / M7 N9 P! w% I- @/ C+ j5 ?War Game A simulation, by whatever means, of a military operation involving two or more $ O7 k9 R& W7 e8 u# U7 p2 Qopposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. 5 k/ ^: L4 e# x( n" T" d' ~: t6 \Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the & L* w& s; D- O+ O1 d9 [2 oJNTF for use in CONOPS validation, missile defense program design verification, + N/ F3 i9 U9 {; O5 p1 W pvalidation and accreditation, and support CinC/Allied wargames and 3 m+ \# V! b( {+ B, W, Xassessments. 6 M9 W n7 {1 T' rWarhead A weapon, usually thermonuclear, contained as the payload of a missile. $ u7 O: a2 N& Z( JWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, % w- v: K2 F+ V8 Nairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related ( o# h5 j% ^) V8 v5 k' E( c9 K. I }components. WARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. w# r' I; S8 aWarning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). {* {9 F& ?0 N+ p: y' \; r0 E3 DWartime Reserve Modes (WARM) Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will 9 W- }, W9 _: A! w+ ~6 Pcontribute to military effectiveness if unknown to or misunderstood by opposing 8 N. D+ K) }- ~, m! h- fcommanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for ' K5 X V0 A$ V3 s) W( n9 T% Zwartime or emergency use and seldom, if ever, applied or intercepted prior to 3 p2 s5 T3 [/ ^. l& P: @such use. 8 h+ }/ a) D* B1 b% n7 U( ?WAS Wide Area Sensor. + l5 v1 F! }2 b& h+ t0 H3 FWASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 6 G6 p7 c7 R$ F* MWASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective 2 i. |# \4 S: ?; Q2 _9 Kin contributing to the defeat of the offense. x# v e0 W c; W. Y1 I% QWatch Condition * o, p- t% r; `( P* }5 o(WATCHCON) 6 @4 C$ f+ ]0 N" I$ o" Z5 uSeries of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. 3 B+ m9 g; M: VWAVE Wideband Angular Vibration Experiment. 1 t' O( V7 D7 G# B% v4 l; U5 V+ {Wavelength The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation. WB Wideband. 6 H+ k, H N( c) k% V$ R; yWBM Weapons Battle Manager(s). # h1 ^$ t' ^( \WBS See Work Breakdown Structure. 3 d x& S" g2 ]& w' Q5 `WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). 4 A+ O1 d% D, _8 AWCP (1) Weapon Control Processor. (2) Weapon Control Platform. ' B' e3 c7 p& L. j! q- gWCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.