航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 3 p( V/ `- j6 C& g' g$ u+ _Theater Missile Defense Council (TMDC) + L. _6 T8 E( K; ^! M- w! h+ {A consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. Theater High # E8 A* ]8 [' M7 @+ }Altitude Area Defense System (THAAD) 2 `5 w7 J; g7 v1 N8 R* ~1 RA ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at ) f3 z6 y# Q U0 B$ C5 Pgreater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. Theater Missile ' t2 U% F6 F# L4 o* e1 V(TM) 4 D# F& I6 o8 s3 v. d. o1 vA 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 ) E. b, p9 `$ O t7 J- ?5 eof attacking targets in a theater. Theater Missile 7 u" I' E- r; H' f, WDefense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. * d6 `0 Y+ t6 K: [! LTheater Missile Defense Ground- * m, y4 \3 n; t6 sBased Radar (TMD-GBR) ; f: {1 V& k {A ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as 6 V6 E0 h% K5 Y' f8 o+ I& mTHAAD Radar. Theater Missile Defense Initiative - ^ x1 F; o+ ^ k4 T! y(TMDI) An 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 ) q( X1 S* h. u/ n9 C! c(Public Law 102–484) directed establishment of a TMDI office within the DoD. " ]4 _' b5 M: |: l0 k6 }THEL Tactical High Energy Laser. Thermal 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. 2 c% }& f3 E, O2 K" G% o4 [1 F* m8 S5 YThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. L9 Q3 j" R- Z7 D3 TThermal Management Technologies/techniques associated with the control and management of # r- a- M* O5 b0 Q X2 othermal energy, its generation, dissipation, and recovery. . Q: C& ~% N8 p; w/ zThermal Radiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of & A( @; B: ^/ z( N) z/ dultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, " H$ y7 \; p7 A( G% H/ s" Pemitted 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 6 W+ n3 c7 p; @. j& s" fabsorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated # D. ^3 |7 o3 I4 c3 Z- Vregion) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 8 U, S1 G6 Z3 a% _- U$ R299 $ q5 g) F( Q; v9 D* TThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; * l/ c3 Z5 ~# S: P2 ^. Nit is a region of more or less steadily increasing temperature with height, starting at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the ( \* u- ^; e2 r% w! U6 b9 H' _exosphere and most or all of the ionosphere. : O4 r' F; M N% ]7 AThreat 2 a8 Z5 l( N0 v. ?0 x+ `) kCharacterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor : ]' s' E; Z* R(Threat Tube) : S5 s5 l& d8 _8 e. M8 I: f1 e. cA 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 $ {3 X0 P+ E8 y) z( \ T9 Otrajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic , f- s) X. Z0 }7 V! i8 b) K+ dmissile defenses for the purpose of analysis and evaluation of those defensive / h- d8 I# `$ t X; isystems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. ; w$ f0 S! K4 V m, X. u% kThreshold Defense . u4 G% V/ W, x# v% j, V$ ZA 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 , H: r h+ |. @6 Z! H# L0 Z/ soffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. ' c. F, f/ W* N0 E' uThrusted Replicas (TREPS) 0 a' _4 O7 N J/ j4 h$ ^( _( jConical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. + S& F! f6 q, Y7 ]# @ @- ]TIARA Tactical Intelligence and Related Activities. 7 Z8 G; G* N+ {" P) T8 L( y) gTIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. * Q7 n' x) x% T; t- A: y$ XTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. 8 I4 Y9 S* @" I; gTIE (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. ' I6 v5 U- p& V) ^+ g0 yTIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. / L9 O2 i( `! v$ yTIM Technical Interchange Meeting. 1 c1 V+ d7 J$ t4 y% ^5 sMDA GLOSSARY, VER. 4.0 T : n1 O7 n8 P$ v, C6 X300 - w' ]+ v/ o7 U' G( N* wTime-Phased 3 N7 n* P3 t9 f$ rForce and Deployment 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 debarkation or ocean area. % F$ H) L* g2 K+ kTime of Flight 3 S# @. v+ C5 c7 W+ |9 b(Max) The maximum time for a booster or vehicle to perform its function from time of 2 p( [7 y; p4 z6 i9 g- E: ylaunch. Time on Station The time the sensor is in its operating position. Time Sensitive / p. U7 z) S/ A) N a+ V! D9 n0 N5 Y RTargets 4 c) R$ ^% \* A4 |$ U- xThose target requiring immediate response because they pose (or will soon pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). / w7 Z$ H: z# }+ a2 t. yTIN Theater Intelligence Networks. TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety % e/ D+ n+ T* q2 ]TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. ( a; s6 C6 L6 @+ [* [/ Q6 x, O& JTitan USICBM. TIU TIBS/Tactical Interface Unit. ) [. B3 }- g; PTIWG Test Integration Working Group. (U.S. Army) * r3 H; _& ?2 n: `TL Team Leader. TLA Time Line Analysis. . e1 e9 W- `( Q- r' ^$ j" gTLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). 6 h% P7 T* N4 l8 r0 b& }- Y x& ITLDD Top Level Design Document. TLV Target Launch Vehicle. TLX Teletype. 3 ?1 ^+ z. B/ U X* ^* UTM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). : l' u: z4 P2 B, m- m9 e/ }TMCC Test Monitor and Control Center. 1 v8 `. u1 i7 b6 A7 JTMD See Theater Missile Defense. * T: z+ _: c% A- J) C$ E2 {TMD C2 Theater Missile Defense Command and Control. / p) [1 q4 C3 h1 @MDA GLOSSARY, VER. 4.0 T 3 d$ w( a* C5 u+ {6 Y" o301 ) V& O1 m% _" fTMD C " O# Q! H V# n# J! s3 F' S: X h! a6 t* F! }I Those assets that provide connectivity between and among Theater Ballistic ) j' _3 X) H5 e' SMissile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. + l# w$ u3 m/ A( z* ETMD ITP TMD Integrated Test Plan. 4 L$ _$ L; M, Z9 HTMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. TMDE 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. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. - J2 t% e* i# Z: C6 M; d5 z lTNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. $ l3 X* b5 t' A6 }1 _5 j/ b, m; ITOAM Tactical Air Operations Module. TOC Tactical Operations Center. TOE Table of Organization and Equipment. * i, k* L, A& D8 w3 g( WTOF Time of Flight. TOI Track of Interest. TOIA Task Order Impact Analysis. ( Y% e) t' n# [1 T/ bTolerance The ability of a system to provide continuity of operation under various abnormal conditions. - @- Q" [: u% fTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. & m& ~. @5 s5 U8 r1 g+ [MDA GLOSSARY, VER. 4.0 T 302 % ^8 H: H# T8 t' L: ^# ^4 ]TOMD Task Radar Management Details. 7 ]" ~1 i% n8 X+ Y" a0 vTOMP Task Order Management Plan. $ k6 w+ h7 ]& {- X" @5 E1 ]( V1 bTOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. + j" d5 j4 ?% b' j: V1 W( `TOP Task Order Plan. 4 @+ d0 g( T( x2 s0 w. K: gTop-Down Pertaining to an approach that starts with the highest-level component of a " J- o4 T. P$ U" c) c( Xhierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. m5 S& |" c* i& _8 }8 n& fTop-Down Design 4 r. x- @5 q. t/ A) x0 u6 ]The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the $ ?& m% w' z, {- m( O2 |5 ^1 Adesired level of detail is achieved. Top-Down 1 N& X, @5 e) k+ |Testing The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power 6 j; V% e. n' H: R, u& P& b5 {technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target ) I/ ^% R; W; U- ?' G& u4 ] lTotal Obligation Authority (TOA) 7 w4 i$ i) R5 t, a |A DoD financial term, which expresses the value of the direct program for a given fiscal year. Total Quality , k$ R' I$ d ]3 F$ ?9 ZManagement $ m- j( `9 v0 a3 g4 N(TQM) A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. 5 a- s, r6 @6 }% o% LTPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). 2 v0 O M+ v* m3 {- k" I C7 \4 aTPDR Total Processing Data Rate (TelComm/Computer term). ' X6 f7 w- @1 u; j4 sMDA GLOSSARY, VER. 4.0 T 3 h' g- k) a: Z% s$ }% |+ k+ Y: @, l" h303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). % V2 V2 D- l. C% v3 s, s- h* ? ]TPFDD Time-Phased Force Deployment Data. 7 b, c2 g2 z u" n0 W" |/ B5 r3 X, Z GTPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). 7 y, a" N! j4 `5 dTPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. d: M$ O/ k! R0 QTPS Thermal Protection System. TPT Theater Planning Tool. $ F& f0 a$ J' aTPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or 1 `. T# L; ]( U! f$ z: g$ [domain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and ) i* a4 [$ T* U; `+ e& gconstraints. " k( t8 b, I5 Y! W$ v(2) The degree to which a relationship can be established between two or more products having a predecessor-successor or master-subordinate 4 x, d( J+ x4 R* xrelationship 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. (3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating # c L; [# C6 ^: kinstrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the 2 f, J' T2 L: ?6 V; l4 D6 O# eearth. Track # }5 ?3 R* D; j( w8 `6 S9 WAssessment The Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. 5 e4 e* S3 p$ L) lTrack, Birth to Death ; M; M u! c: t' O9 A6 ?* RThe maintenance of an associated track through all phases of flight (i.e., boost to reentry). 5 t( D. I' v1 V1 oTrack Correlation The combining of track information for identification purposes, using all available data. Track Extension This term usually applies to improvements in track estimates by use of new data. 1 J5 J8 d3 O5 U' A/ d( MIt is sometimes used to describe a process of target extrapolation to a future time 2 i+ ^, R+ p7 b2 V4 U( ?or place (e.g., reentry). . e6 l: P4 [# R8 @. c- U. LMDA GLOSSARY, VER. 4.0 T ) E$ Q+ V Z" _% m304 4 ~4 v, F5 ^; a }/ u; r2 pTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS 6 ]* ?1 E) q4 j: c+ f f8 D- f! ^- ?measurements with irradiances with confidence of association; or some subset of 3 g# p4 M& U% k; g8 k* Athe above. Track File-Track ) g9 r5 A" f! {8 w0 ^ f2 c* k9 c) }History A set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a three-step process of data association, track initialization, and track improvement ) X @3 ` p E, b6 X5 Tby filtering. 3 }* L V% d; M, g- D" Q5 iTracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and Pointing Once a target is detected, it must be followed or “tracked”. When the target is 9 z. p* \# A; jsuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing ( t. n' R" {7 y! `5 P6 [are frequently integrated operations. Tracking Range , Z( t- U3 c' O* Y& ]7 i(Max) ; q/ M( v f" w* N. p+ @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 of an object. The process typically requires observation from a number of ' J! s# b& i5 U9 o/ s; k) X( e$ pframes. Track Production 0 N/ t& J4 W! X9 E! {' v. C6 NArea 6 \; S5 ]2 K6 Q# ]7 rAn area in which tracks are produced by one radar station. 1 S" m7 t2 h# Q% E' G bTrack 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 between command and control systems or between facilities within the systems. Telling may be classified into the following types: back tell; cross tell; forward tell; & A/ \: X$ q- w4 k' i; n, Clateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. / o4 @8 n! Y# V- @Traffic Capability Maximum : W4 T# x: t6 z5 c( ?" uThe maximum number of objects per unit time which the sensor system can ! E. U' @% L% Qmaintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high 0 i0 ]2 o# J1 r, kendoatmosphere. 7 T1 \/ z. J- mTrain Threat geometry with objects placed in a line (string) along the velocity vector of . l7 G, c0 R& i F' X" ]3 Breentry. , \" ?6 w$ k" ^0 {) KTrajectory The curve described by an object moving through space. Trajectory ! ~# t- J# s! ?5 }) eHistories 0 D, x& T/ f/ O& X7 t! HTrajectory information on targets recorded over a period of time. , ~: g" @; J9 L$ m5 z# \TRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. * h$ n( u' M( ]6 q3 _& DMDA 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. , f1 d1 {( b, J9 tTransition to 4 Z& f i [! g+ S- r' K% {1 I: [Production A risk reduction process during which the program shifts (passes) from 6 A; P' T0 K3 ^/ xdevelopment 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 3 j; L2 s! L0 u2 p/ lSecurity " v- J- c: x6 p7 E; S# S( R(TRANSEC) That component of security, which results from all measures, designed to protect 5 k. `, a+ G1 V& Lcommunications transmissions from interception and traffic analysis. (See # |$ w1 X: A0 A) RCOMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative speed of the fluid is subsonic in some places and supersonic in others. This is & ^6 n" Y+ p6 _! w; Q- a9 bencountered when passing from subsonic to supersonic speeds and vice versa. " S/ m3 j/ a& e( L" c! v- @Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. / y& f9 @- ^, Y0 l' k+ O* {TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. 4 a7 f) K8 A% XTraveling Wave Tube (TWT) - |* Z7 B2 A2 N& z9 t1 p) kAn electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in 3 k; w" R+ K; B, h* A% Z6 K* ]* Tsynchronism 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. " o( _. n3 n6 F3 ` W3 h9 p2 I(2) A method of surveying in which lengths and directions of lines between points on the earth are obtained by or from field measurements, and used in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both " K6 [7 h, h9 L* ?9 d9 K w7 ]* q9 Has a height and altitude, at which aircraft can cross the area. , {0 G" N8 q0 d/ Q$ ATRB Tactical Review Board. TRD Technical Requirements Document. ) h. G, T4 P/ m* f- v% ~3 E1 ETRE Tactical Receive Equipment. 0 r4 `; g3 ^3 |) _6 W3 ]TREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. 6 l7 R) M" a1 K* @- DTREM Total Radiation Environment Model. TREPS See Thrusted Replicas. ' Q3 H' B' V. c" HTRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. TRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains # o' ?/ O! e6 Y8 O. m$ [3 Sadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. X5 {, k- C n, DTropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of * Q1 h/ v# W9 F9 h2 rabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the 1 @7 F2 G$ `' M* Etropics. (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 altitude, clouds form, convection is active, and mixing is continuous and more or & d( F- D8 N: @9 D N7 Eless complete. 2 _: I8 N. p5 l v1 _$ W' [: YTropospheric : H5 K6 W+ [( r; I4 xScatter The propagation of electromagnetic waves by scattering as a result of 1 u2 m9 x$ ~ S! w o- Jirregularities in the physical properties of the troposphere. TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. % T$ Q$ a0 A* d/ `, ]% E6 N! B' oTrusted Computer + f+ `, C6 b: @System/Software 1 N7 h; i( G8 UA system or its software that employs sufficient hardware and software integrity $ N3 V2 Q' t* r! W% Lmeasures to allow its use for processing sensitive or classified information. 4 B/ l- u+ ~% o7 S$ [0 O/ vTrusted Path A mechanism by which a person at a terminal can communicate directly with the 1 p1 p3 ?3 S. C o3 JTrusted Computing Base. This mechanism can only be activated by the person " {8 z9 E' q) Q0 Z- c" }! v, @of the Trusted Computing Base and cannot be imitated by un-trusted software. / Q5 U3 E H+ e! E9 l3 jTRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 0 d4 N, _! b& e) X* Y' q307 3 t2 |: d7 _; v5 q8 HTSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. : {+ z# h. c# h" p1 [TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. $ S* A! R7 B& @2 n, K) |TSDE Tactical Surveillance Demonstration Enhancement. , ~3 j- a `( O* U3 Z) g7 M, ITSEU Technology Seeker Evaluation Unit. + ]; x* p; F- \+ JTsIAM Moscow’s Central Institute of Aviation Motors. 0 E1 k- n+ L( B' }7 x8 ?TSM TRADOC System Manager. 5 U q. `0 A/ P. r2 Z# J; L# z1 ?5 sTSMA Theater of Strategic Military Action. 0 P' e u4 r* T! j' P% ^' ?9 OTSP Target Support Plan. * z" e' x, V2 L8 B- jTSPI Time, Space, Position Information. ( X2 s# _5 P2 O( ?) f/ d$ hTSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. 1 A& z# s4 \* Q/ T; k/ VTSWG Target Signature Working Group. 4 X' l! L9 Y* O: aTT Total Time. ( ~& v% K7 x7 ~2 P$ TTT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. ( N6 H+ l2 }( G/ S7 QTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. & A% g# B* ^$ Y1 `4 s5 W/ `TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, which have significant potential for improving testing. , @% s& n+ C; l% n3 t: A( O# ZTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. 1 P. {, y3 ]3 ?TTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. / c6 }6 ]/ _* T6 Y& JMDA GLOSSARY, VER. 4.0 T 308 TTV Technology Test Vehicle. , V, g @' e( j3 @, MTTY Teletype. TUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). - _8 u& y" U- m5 e; y. a) KTVC Thrust Vector Control. TVE Technology Validation Experiment. 0 r* c, _" B, `; OTVM Track-via-Missile. TVV Technology Validation Experiment. TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. & o, U8 q- e. kTW/SD Tactical Warning and Space Defense. $ y- C4 w; m( N( [4 j$ S% m- aTWG Technical Working Group. : z) a# ?) ^+ C! {1 [3 `2 ~TWS TOMAHAWK Weapons System (USN term). ' P% u ]! W, x; A1 b, Y: pTWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 7 G5 K# k2 y# P/ v- CTY Then Year (PPBS term). TY$M Then Year Dollars Millions. : s0 E7 x V7 i. |2 \Type A - System Specification 4 o, d( ^( U& z* h) `3 cStates all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical 5 j- R# X5 d* e& {) z* hconstraints are included. Type A specifications state the technical and mission requirements of the system as an entity. Type B - : h5 n3 y0 P, JDevelopment Specification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the B. e: u: w1 w( ~# P. d/ ^9 Edevelopment of items other than systems. They specify all of the required item ( H9 n+ \) @3 h' |8 j& c+ ufunctional characteristics and the tests required to demonstrate achievement of $ k K( ~ P# G0 ]( o+ t& [# G9 M1 [" uthose characteristics. Type C - Product 5 ^/ i2 ^4 ], x. h+ |' xSpecification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 1 ~' ]. Y. v' O. N; Y oitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. 8 X% \4 W" g, P ~" M9 nTyping 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 4 p. h& m p# S4 p0 uobjects (i.e., SS-18, SS-24). , K) u; u% U( rMDA GLOSSARY, VER. 4.0 U 9 D# e6 |6 u: Y+ V/ Q& t309 U Uranium. , f6 m7 h9 `: A- b3 PU&S Unified and Specified [commands] (pre-1996 term). " V) i0 i& M1 Y6 L) p) }% c! ?U.K (UK) United Kingdom. U.S. (US) United States. U.S. West U.S. West Incorporated. , b, X6 g* }- |( mU.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. * L) b3 w3 A/ _$ b3 \UAV Unmanned Aerial Vehicle. ) ~6 [4 \8 F) e% p3 z ]3 iUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. ( s7 X+ M$ ?) d. ^- f5 a" i. GUCC Uniform Commercial Code (US legal term). ' r: x1 J) J( HUCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. UDMH 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 9 B8 d" A5 O2 ]. m% T, l9 p' tcapabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) ; J! f( x3 R5 I+ d! u3 ^# FOperations 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. UEME Unified Electro-Magnetic Effects. , `) i: o' ^# ]1 ?UEWR Upgrade Early Warning Radar. 3 v s' \8 e, @# p( TUF4 Uranium tetra fluoride. / s, d1 `5 q) Y( c- MUF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U 310 ( C) ?$ L/ p0 G2 ~UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. $ I; |5 }+ D/ T6 l, Y5 cUFP Unit Flyaway Price. " |/ {4 I* v# m- j% lUGF Underground Facility. UGS Unattended Ground Sensors. ) u, b- u5 C! \& N7 F, @7 G+ C4 GUGT Under Ground Test. - Z4 w" E1 G6 u9 d% X$ ?9 GUHF Ultra High Frequency. UIC Unit Identification Code. UIN User Interaction Node. * x( v" c, Y$ z! H6 Z: ^$ x: ]UKAS (1) UK Architecture Study (2) UK Associate Studies. G4 P3 j. Q7 p7 w8 v. ?UKEADTB UK Extended Air Defense Test Bed. ' ^5 L2 b4 p& E }3 H7 jUKTB United Kingdom Test Bed. , G# T, {5 _7 VULCS Unit Level Circuit Switch (SINCGARS term). % |, q) T5 k& g" ]6 DULS Unit Level Switch. ! N) }5 D8 {' x+ a2 bULSA Ultra Low Sidebobe Antenna. ULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet ) p& i( Y7 G" H4 O/ Q(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). UMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. Unconventional 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. i8 ?0 P& v# m2 M' |Unified Action * h) F4 j7 z: P# Z! iArmed Forces A publication setting forth the principles, doctrines, and functions governing the , S$ R6 Q8 P* V, ]" wactivities and performance of the Armed Forces of the United States when two or 5 j+ g$ @* A- q& [' a7 qmore Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary 9 t, [0 _% M+ U y' j: @of Defense with the advice and assistance of the Joint Chiefs of Staff. : K% s. b" O7 d; R$ @7 JMDA GLOSSARY, VER. 4.0 U 311 UNISYS UNISYS Corporation. 7 [/ H8 t; e( m3 y m9 B/ L: G$ WUnited States 5 i7 V* O$ S) @* z2 X" vArmy Space Command Z# @/ l9 t7 N" p1 Q0 V9 p. S(USARSPACE) 4 {6 `9 H8 I W* lThe Army component command of USSPACECOM. Responsible for the Army 9 ^( b" j' y5 Felements of the SDS system. Located in Colorado Springs, CO. / S% K' L5 Y1 y# a9 l& EUnited States , i. }: p' Y" Z& d+ MSpace Command (USSPACECOM) " A3 I" {& u9 sThe unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. / F1 [$ `* B' ] a( b! yUnited States 4 r2 M7 O. s+ {- Q" M/ mStrategic 2 K; r0 x% F9 g) Q5 T' R7 }3 u6 qCommand (USSTRATCOM) - w" [; G7 G# b. a; }9 lThe DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic # ~" q0 _' S5 e( ~missile offensive combat strikes. Located at Offutt AFB, NE. United States 2 T# w0 G3 a; D$ cTransportation Command (USTRANSCOM) 5 S" L" ~- C- O1 C( bThe DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of war. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as 6 f1 \: n h4 ]. N" U' V: vneeded 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 ; ~( `7 a B5 B8 K- r" \AFB, IL.

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Unk Unknown. ; D! y4 {, m; ]) m8 B6 F2 |Unresolved Objects ' l3 l# S9 \* f% K: i( tObjects so closely spaced with respect to the sensor focal plane as to be ' |. [: B: ~* a- b0 Qindistinguishable from a single object. ) T# w2 ?4 J+ ]1 `5 d( m lUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. ( h5 h8 {; V6 F) J" ZUOC Usable on Code (ILS term). UOES See User Operational Evaluation System. ' `# L9 f: r% V2 IUPD Unconventional Passive Discrimination. / ] @5 W7 O6 eUPS Uninterruptible Power Source. , ~3 [* |! t/ \/ a2 @UQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). 9 u" R2 ] c0 s2 l/ dURT Upgraded RTD. US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. 7 S0 y. T7 K$ l9 w; D4 q3 hUSAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U 312 USACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. : K- B+ E- M2 \USAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. USAF/OTEC U.S. Air Force Operational Test and Evaluation Center. R4 C h0 v( |USAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. $ Y& }/ b: W6 S rUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. + [ |1 b$ N3 u9 }( r4 c$ [2 g4 {USAFE U.S. Air Forces in Europe. 4 A+ i8 B: G8 bUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. $ O( {1 M. f; f! y( IUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. , ~* ~# E; @, t: sUSAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. : z0 ^! L* P+ ?6 tUSAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. : p: `+ h1 E" A6 fUSAREUR U.S. Army Forces, U.S. European Command. ) _4 _1 F/ j& ?- ~+ \USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. 6 s" I# B. ^/ {) r+ T) x1 T6 _USARSPACE See United States Army Space Command. USASDC U.S. Army Strategic Defense Command (<1Oct 92). USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. 8 \5 b- R/ n" N* V1 x" aUSATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. : v6 v; {2 K' Y i" @( YUSC U.S. Code. 8 m$ [. }' B3 ? d7 B! i9 g; bUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 2 n4 T2 x3 c# K- ^8 J; ]313 + \% Z7 g9 C: u9 l( SUSCENTCOM United States Central Command, MacDill AFB, FL. 7 b4 r$ F- ^1 JUSCG United States Coast Guard. $ w1 o6 g; j) n' N9 UUSCINCCENT Commander in Chief, U.S. Central Command. " f# ^& H. g( @% Z7 m1 KUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. % a* H* T# ~6 ?% }( `' iUSCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. : q% n2 r- _: ~% O2 A2 NUSCINCTRANS Commander in Chief, U.S. Transportation Command. 8 V/ Q. V. @) e6 @" f: U# ]4 {: `USCS U.S. Customs Services. USD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). 1 r$ [5 H1 I% R# h/ mUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. 7 O9 r. g' W% d! aUSD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. ; }: L; _" P7 \# O' u, OUSDELMC U.S. Delegation to the NATO Military Committee. 4 _6 o% @9 O) i5 E4 a1 r8 Q3 \USDR&E Under Secretary of Defense for Research and Engineering. User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine 6 }7 E' A' A. v; W6 J* o. A' q(hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational ) \$ @) G( q+ F( ^2 u1 kEvaluation 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 / o3 L# q- Z2 g# ntraining for a system proceeding through the normal acquisition process; and (2) , t7 G- m, X7 o! h0 }9 M( ]3 ^8 Mcontingency defense capability should the need arise prior to completion of the 4 I4 w, C& H% b8 Q; f& ynormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ! ?: ]* I' Y$ q8 OUSFJ U.S. Forces Japan. USFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U ; Z' y+ w9 {& u E2 J9 u% ?& e314 USLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. $ j3 e( z! A/ ~. eUSMAR- _6 ]' w( Z0 P# LFORCENT U.S. Marine Component, U.S. Central Command. 7 t2 p) d7 N; zUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 4 A# a' H6 W5 R' m% MUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. * K S, i0 y# B. D% B; @USMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. 4 J H9 |4 D! f9 F/ y# @USN United States Navy. " [( r. P5 j" G8 `( sUSNAVCENT U.S. Naval Forces, U.S. Central Command. " x0 n0 c9 @4 lUSNAVEUR U.S. Naval Forces, U.S. European Command. ; y3 y6 ~7 z! j4 M yUSNIP 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. USPACFLT US Pacific Fleet. . ]) |- `5 |6 S4 jUSPACOM United States Pacific Command, Pearl Harbor, HI. , [3 h1 R% B6 O V9 U0 P' PUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. / ^) A$ A$ R4 p5 vUSSOCOM United States Special Operations Command, Tampa, FL. ( ~$ x9 b1 D8 U2 dUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. 1 A# z$ f* C; Q" QUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. / {7 B; `0 v2 J, F8 GUT Universal Time. 5 |0 T- ^8 C6 Y b% x/ N5 VUTC Unit Type Code. 5 E0 C1 \( e, t4 N1 QMDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. 5 j5 T, ^* G0 r0 Y: u2 wUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. g8 u+ G' V9 N4 N5 j- EUUT Unit Under Test (ILS term). % B/ c$ d4 h0 m; S8 M% c6 k/ C5 X3 R4 M& JUV Ultraviolet. ! L' |$ z6 d1 T9 D# H% k" C2 _UV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). ! Y6 @1 I# ~2 g# }7 {) \3 r$ p' L% LUVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. ; ?" e9 B6 l; \" uMDA GLOSSARY, VER. 4.0 V 316 V Volt. % d ]) @, L8 D, h! C6 ?V&H Vulnerability and Hardening. ( F$ ^% Z9 M8 OV&V Verification and Validation. (See Verification, Validation, and IV&V.) 9 Y9 F" `1 K$ A7 vV/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. 6 b. h$ Z3 ]6 i+ g% o$ F: zValidation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, ' b% r& A K* Y; U& H/ ntactical situation, system design, tactics, and threat. - W6 d5 p- `) \+ u! d @. |$ rVAMOSC Visibility and Management of O&S Costs. 8 l4 Z Z) r4 M. _6 F% ZVAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases 2 N: w' X/ k( S5 q( Uwith the distance from ground zero; or, in damage assessment, a mathematical " S! A! s0 Y9 u8 h0 efactor introduced to average the effects of orientation, minor shielding, and - y3 U+ C8 A. l1 muncertainty of target response to the effects considered. 3 X: H: y' K, `: r: y# _& nVBO Vertical Burn-Out (velocity). ! c5 M/ n- _0 |; ` r3 G, T( E; LVCC Voice Communications Circuit. ' \# m0 n1 D& ~% TVCRM Verification Cross Reference Matrix. * m; U7 k( ?2 E2 r1 H$ wVCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. VDU Visual Display Unit. VE Value Engineering. - D2 ]* L* L' O, [* j: pVECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, calculations, logic, and interactions of the system under evaluation. / ]1 E e) \7 M. o- }; `(2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified v, e7 }' N4 L# _: l D% e& |requirements. VESA Video Electronics Standards Association. VFR Visual Flight Rules. : w" T3 K e7 G; }/ Q& r, S4 l5 U, fVGA Video Graphics Array (Telecomm/Computer term). ! [5 k. H6 X. {- o+ c v- e0 ZVHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D ' \! r8 Z% u& n5 gExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional & i3 n: A% r. p. N% Ucircuitry and commercial components. Project also demonstrates VIRGIL, a gimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. 3 A9 [" k& v, U) |7 LVIS Visible. 0 N/ V0 j; T2 ~( W% hVIS/UV Visible/Ultraviolet. # A( J: q. R* @: uVisibility 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 B7 p9 q& k3 ]# H$ e |, i2 B) {clarity of the atmosphere ranging from 170 miles (280 kilometers) for an 1 R6 `+ C7 E/ b4 L% K# jexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze . \3 S/ Q+ m' H. ror fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). Visible Electro- $ b* L! Q- c8 f" [7 KOptics 0 _: N& ?3 i+ q2 sTechnologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. ' ~# t& v T/ [' X$ I4 i+ F6 {- GVLSI Very Large Scale Integration. 8 V/ M- W/ S* Z/ |+ c. |* s6 K1 ~VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. ! C+ e, _6 K6 U( XVMF Variable Message Format (Telecomm term). VOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. $ s* R% p8 {. j/ _- fVTC Video Teleconference. 5 {& {0 h# L) w$ Z+ eVTOL Vertical Takeoff and Landing [aircraft]. 3 S! J5 g& m/ S3 S( nVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. 8 _9 t. s3 u3 h% a5 ]% \VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 7 t1 B- ^ {* A; Z: N318 0 g* M# q! A; @% J8 lVulcan UK bomber. : R( s7 A! c: c2 n fVV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. ) t. E( P( _ y/ c# FVVIRF Verification and Validation Information Request Form. 3 V5 D4 f$ C& jMDA GLOSSARY, VER. 4.0 W 5 I3 D2 H$ N# \3 N4 m7 B/ U- o319 W/ With. w/o Without. W/TD Warning/Threat Detection. ! z4 Y- B) m4 X' RWAA Wide Aperture Array. , j m Y! l- EWALEX Warfare Analysis Laboratory Exercise. & ^0 m2 J; ^2 EWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area 9 }$ B6 t& S3 @' Y* |% KMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). # T6 g3 T; b" F3 W* ?* `& mWAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more + [1 M2 O; F3 Y8 ^8 }6 ~# P: H, oopposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. 2 x, X' V- y* G6 T: t. y: S5 vWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the 1 I, Z/ k4 F! n" O2 k: XJNTF for use in CONOPS validation, missile defense program design verification, K! W- e- U! R& rvalidation and accreditation, and support CinC/Allied wargames and assessments. # ^6 {* m- o0 l& Z4 a( `! R6 oWarhead A weapon, usually thermonuclear, contained as the payload of a missile. 0 ~3 e7 _& m3 H1 [- HWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related # r& X/ D; N9 f+ r7 Q* tcomponents. 4 E3 a0 @$ k8 J3 G. T! sWARM 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. Warning Order A preliminary notice of an order or action that is to follow. + a- m y) H+ ]WARSIM Warfighter Simulation (US Army term). & m3 n" U; v2 e0 zWARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve * f* v7 y. ~1 p6 r( XModes (WARM) Characteristics and operating procedures of sensor, communications, navigation / D1 i5 ?! H: a% Z9 Jaids, 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 wartime or emergency use and seldom, if ever, applied or intercepted prior to such use. 3 q+ o) o, j- d" r& g# _) UWAS Wide Area Sensor. 8 v; U9 ?5 N8 r+ {3 l1 JWASP Wide-body Airborne Surveillance Platform. A modified DC-10. 2 }" Q. C! ]! f: j: \1 uMDA GLOSSARY, VER. 4.0 W ; H) H' ?* M- Z% |3 t, `% H! x& ?320 WASHDC Washington, District of Columbia. c& f% l. d! B8 L2 e! X+ eWastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. Watch Condition 7 A. i% C% z! X3 [* A. I(WATCHCON) ; f9 V4 _; Z& x1 B$ x; CSeries of readiness conditions used by the intelligence community to alert staffs # v; L0 _' P, D2 m- f& Qto watchfulness without raising DEFCON. WATS Wide Area Telephone System. ' d4 w4 T" i1 z6 A5 _/ i- yWAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive 7 ~9 ~: v5 Y" l: c) X2 hcycles of a periodic wave, along a line in the direction of propagation. WB Wideband. : s) ?0 n8 S j' G" J# XWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. 1 }6 ^* p) O$ \9 {6 W: qWCC (1) See Wing Control Center. (2) Weapons Control Computer. . z3 j4 {( ^+ LWCG Workstation Computer Graphics (Computer term). * T. @% \( q9 [8 C2 a. wWCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. 1 S/ J6 h/ l8 P6 y& F9 q( j) y, F8 cWDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be 0 O9 j9 q7 c1 }launched.