航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T % k) J" A! D* C% J/ z& k6 u+ o298 Theater Missile Defense Council % R s& M1 i0 }7 r) a(TMDC) * \$ _( X3 e2 Z$ f/ ^A consultative body for considering TMD family of systems planning and A( d! w. _' C; O0 \! z: P0 a$ Kprogramming issues; chaired by an Assistant to the MDA Deputy for 3 U) |/ T; F, R" u8 SAcquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. Theater High Altitude Area Defense System (THAAD) # l' f% Z- n* _6 }# AA ground-based, air transportable interceptor system that will provide wide area 6 R0 U: o' g% R" H5 Y6 n* D# n) B p8 Hdefense capability by intercepting longer-range missiles at higher altitudes and at ( X, c8 `# f jgreater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. 0 a- y8 X! m1 M) {4 [+ bTheater Missile (TM) A theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable of attacking targets in a theater. Theater Missile ) Q& a, ^5 |, c0 k2 LDefense (TMD) + V6 E K5 v* g. C3 H" v: H% QOBSOLETE. 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. Theater Missile ( c* b/ g0 r( S0 vDefense Ground- Based Radar (TMD-GBR) # f& s/ j: `* Y% {% c9 J/ kA ground-based, air transportable sensor that provides search, tracking and 1 h7 S( U& Z( S4 ydiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. Theater Missile 4 p5 f+ L/ P1 ^) m, ^2 J' TDefense Initiative ' Z( j9 W3 C9 }6 B! M(TMDI) An initiative under which all DoD theater and tactical missile defense activities are 1 Y" J& K5 f1 O2 |carried out. Section 231 of the National Defense Act for Fiscal Year 1993 5 _& l* R/ T3 H' `# {; ?(Public Law 102–484) directed establishment of a TMDI office within the DoD. 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. - m9 w4 @. y- V. E/ e' EThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or . I% d. v4 }4 D6 qreflected 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. , q" P6 f4 K6 [5 t4 e- y4 cThermal Management Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. ' j% L6 b" ~, r/ v; EThermal ; r& \, Z5 j7 {' a! ]Radiation * S5 V. `! F+ ? ~( uElectromagnetic 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 ( E) N) W) d8 x! M$ J9 c' fultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, emitted by the nuclear weapon residue by virtue of its extremely high # @2 ?5 [& B5 A0 [4 B! qtemperature; it also is referred to as the primary thermal radiation. It is the absorption of this radiation by the ambient medium, accompanied by an increase " p7 q# `9 S. U5 x$ hin temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T P$ a9 ?. C% y1 ?: d! E299 3 b4 l- A4 y- F. m- i8 n0 T% PThermosphere 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 + j8 x: K0 {2 Y" u wat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the * H! p0 N2 i5 {% W1 ~& Fexosphere and most or all of the ionosphere. 9 b; ^8 v3 ]. K! N4 TThreat Characterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor (Threat Tube) % Q2 _! E* h4 G" Z* Z# VA tube containing all the objects originating from launch sites and aimed at - u: {. u$ X( E& r& Y4 i2 b6 h; ^targets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management & w0 j/ ~4 _& n* d& Z Ecomputation. 9 ?# A: w) z5 O1 p* M$ v$ P. qThreat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive ' J' e# O- ^0 O! O$ ^systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable $ w" v9 n$ r. V D( i# T. X# g4 Jvalue (threshold) required to satisfy the mission need and a performance * _$ Y* Y! z$ K. o% Q# Bobjective. 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. ( m% C! w O3 \4 @6 |- V7 o2 dThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. % v7 y% U. B3 b$ @Thrusted 4 R4 x: e9 h5 \Replicas (TREPS) Conical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. * E( e9 T- A. J9 N5 Q0 LTIARA Tactical Intelligence and Related Activities. ( {, C5 h, y, l$ j8 N2 x7 rTIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. + t) e# N" o/ z4 N1 _* n(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat 7 V; E* n' o! L: A(e.g., boost phase). 1 K/ M$ I2 S4 E* V* ITiered Defenses The use of defensive systems at different phases of the missile trajectory. ) Y z5 L3 O% q' H# X" B7 VTIES Technology Integration Equipment System. ) {( U" ~3 K1 b4 TTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T 9 s' ~- C; M# Y; G: c/ f300 . h7 l1 n& z, D8 z. t# L6 R5 M) qTime-Phased . v% j* G9 o# p. o. ^. aForce and * U+ H& f( g* T8 eDeployment List 2 \2 t/ P- y& R/ @( YAppendix 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 - ^; f# M) C5 D& N. o; q+ ~2 Vdebarkation or ocean area. Time of Flight 1 p0 B( K& ?; ^: |! _(Max) 6 O0 }& Z* J1 r$ P: w: @The maximum time for a booster or vehicle to perform its function from time of 4 z& a) f5 e+ G0 ~: k4 k" Blaunch. 2 E4 g7 l; p. d% ^- u) Y5 pTime on Station The time the sensor is in its operating position. Time Sensitive & ]% |/ N4 k; X9 ]3 _, l6 FTargets Those target requiring immediate response because they pose (or will soon / y1 D! r" u( o& l8 kpose) 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). TIN Theater Intelligence Networks. TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar / m) l2 \" }+ y8 Q0 V8 a$ VTerminal (GBRT).) 3 g' p. z& h9 A. _TIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. 3 ]* u6 c6 r5 P1 nTitan USICBM. 2 v1 h% _8 ^+ G7 C7 R" dTIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) 7 o2 S/ @4 J5 @9 Y& pTL Team Leader. TLA Time Line Analysis. 5 ]/ @" d- b; `/ r" O4 n- j7 }TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. & S" @, R/ l; i3 L0 M% LTLV Target Launch Vehicle. % x4 m; w% Q- R% y4 yTLX Teletype. ) S+ R# T- E8 LTM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). TMCC Test Monitor and Control Center. TMD See Theater Missile Defense. $ a& S. U+ G0 f" h. eTMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 4 M a c" o- \9 G' R |+ ^4 D301 TMD C 3 I Those assets that provide connectivity between and among Theater Ballistic + Q: [8 L. h* l, b& _Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). & z! b& P! Z4 F* ETMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. 0 Z, x4 i4 v# \/ [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]. & {& ^6 y* x; a; \3 X; s2 FTNT Trinitrotoluene. TNW Theater Nuclear Weapon. " ~( k+ Q; T$ [TO (1) Task Order. (2) Technical Order. . C% H; C" _- x# k. C5 a& j) M1 gTOA Total Obligation Authority. TOAM Tactical Air Operations Module. TOC Tactical Operations Center. 1 Y. N% V+ T+ X6 `TOE Table of Organization and Equipment. TOF Time of Flight. TOI Track of Interest. F S8 g$ g& y, MTOIA 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. $ G- u* i9 J$ g, E! m4 b: a P4 W, }MDA GLOSSARY, VER. 4.0 T # q$ n$ _5 ?2 T# r) f. B3 ?; L7 D302 + l, D6 M2 `% ?8 X6 S9 }TOMD Task Radar Management Details. ( u0 ^0 `# ^! _' t5 I; X2 |! i/ |TOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). 4 X f0 n1 ]% ~- g# o! hTOO Target of Opportunity. TOOL Target of Opportunity Launch. TOP Task Order Plan. 7 z/ g! j0 \; @" M0 I( B" A9 rTop-Down Pertaining to an approach that starts with the highest-level component of a ( p V0 r* e: j+ B Y1 K2 G' U: Vhierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. 0 m! {3 o5 [, @ W: H; dTop-Down Design The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the " M/ f, }6 I: J- [$ mdesired level of detail is achieved. Top-Down Testing The process of checking out hierarchically organized programs, progressively, 8 B W" ?9 D; X1 n6 S! }( wfrom top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power 7 L4 n* h% l: ~& ?technology to U.S. BMD applications. . U# k+ G6 T9 ^, J/ S0 W$ [TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target ( o; L f# |% m# ETotal Obligation a8 m; ~3 K3 IAuthority (TOA) A DoD financial term, which expresses the value of the direct program for a given fiscal year. Total Quality ' [$ {2 ^$ l+ ^ [7 C- g+ N% `Management (TQM) A management philosophy committed to a focus on continuous improvement to 3 q/ R; Z7 q* T E5 _9 q& yproduct 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. 8 ^. N/ T" c9 b" A ?TPBM Terminal Phase Battle Manager. 8 v7 Z% d3 O3 b i$ F6 WTPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). * n( g' A) D# AMDA GLOSSARY, VER. 4.0 T . F( d, ` }2 L) L, n303 TPEC THAAD Performance Evaluation Center. . n _0 S1 K0 h4 @% ]' v7 S5 ?* rTPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office K4 J" p3 C: q/ ETPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. TPS Thermal Protection System. - D5 ^# O0 ^6 n4 v! STPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) . G. q J; o* \- s# N) ]7 ^! OTQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or 3 o5 ^. {7 D+ o7 v! cdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and - |1 T0 q6 S0 M- Sconstraints. (2) The degree to which a relationship can be established between two or 6 L$ y0 _% b* C9 m8 Q) Wmore products having a predecessor-successor or master-subordinate " e( D" j, _2 O+ e: Erelationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. : \0 u9 n4 f+ K* L(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 ) f( x0 E T, `1 Vinstrument at a moving target. 1 i( E/ I4 e W- F(5) The actual path of an aircraft above, or a ship on, the surface of the earth. . [1 T. ^& \& v+ c& o. }% lTrack Assessment The Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. Track, Birth to # {2 A3 V P$ I+ _8 B$ TDeath The maintenance of an associated track through all phases of flight (i.e., boost to reentry). Track Correlation The combining of track information for identification purposes, using all available data. 7 y6 U+ y5 B) aTrack Extension This term usually applies to improvements in track estimates by use of new data. ) v8 S/ R- }/ r) A* T' _. EIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). % U7 B2 k) z. d7 h& O2 `! @: lMDA GLOSSARY, VER. 4.0 T * g" a- S: E7 T6 _( b304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS ; k4 t% E$ }! z' ?1 lmeasurements with irradiances with confidence of association; or some subset of the above. 0 v/ U" s$ _$ \Track File-Track History # |( ]! R1 Z- Y" M8 e0 r) XA set of individual track reports on a particular object, which taken together # g% U+ Y3 X9 B, oproduce useful approximation of that object's future position in space. + t! f2 A8 ?$ R- J/ X* yTrack Formation The process of determining the track or tracks of detected objects. It is usually a . M8 z2 s! }) f/ k% ] q- Ithree-step process of data association, track initialization, and track improvement & B% a5 ^$ r% E( P E. Iby filtering. Tracking The act of generating and maintaining a time history of an object's position and 6 Z/ V4 Z f8 r% c0 I8 qany other features of interest. 3 p! f" @1 ?% A8 X# n9 Y/ h4 b+ nTracking and Pointing 4 Y7 y" `& b% q8 Y8 A( n! G* [Once a target is detected, it must be followed or “tracked”. When the target is ' C8 G& Y) T6 Qsuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing are frequently integrated operations. Tracking Range (Max) ( I1 L% v3 }1 D3 m e. qThe maximum line of sight distance at which a sensor can maintain track of an 1 W0 f! N' Y" K( Wobject. 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 $ d9 R+ D- |6 N! F: Eframes. Track Production Area An area in which tracks are produced by one radar station. ' n# k g/ `. L7 G; QTrack Symbology Symbols used to display tracks on a data console or other display device. ; n6 a [8 o* y3 nTrack Telling The process of communicating air surveillance and tactical data information * J7 K# K: T) ^6 R/ s dbetween command and control systems or between facilities within the systems. 8 k' C2 t' \+ d2 b; O. ^" y+ NTelling may be classified into the following types: back tell; cross tell; forward tell; 9 \# k; E+ b- q W9 d! blateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. . Q7 O# u/ D M& x9 u* d; OTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. H# b& ?, ]8 \Traffic Capability Maximum The maximum number of objects per unit time which the sensor system can maintain track files. 8 {# Z- Y9 D" m5 V# N0 KTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high 7 H& J \ p/ X3 ]1 a6 Dendoatmosphere. $ ]( d5 u) j5 {+ w; Z1 A% iTrain Threat geometry with objects placed in a line (string) along the velocity vector of reentry. % t5 y: Z& X) d$ FTrajectory The curve described by an object moving through space. 7 t0 I* z7 L. |% B6 l; o' RTrajectory ' w! M& l- d9 p7 t4 W5 K1 bHistories Trajectory 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. . @' U/ R: g# q# v+ C/ p% ]5 eMDA GLOSSARY, VER. 4.0 T : d2 n# c' S+ S) e& u$ [( T305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. , y; r* r3 F$ \/ L5 p! l" [$ PTRANSEC Transmission Security. + E5 { W% |+ L& zTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to 5 P/ ?5 w% a) z5 h4 z5 m, _* kProduction A risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) % V5 \# Z+ B4 \# ETransmission Security (TRANSEC) # f# C; ^3 i( N( m" `3 g' mThat component of security, which results from all measures, designed to protect / Z) |) U4 ?# m5 J8 @# U" S- W {communications transmissions from interception and traffic analysis. (See COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative speed of the fluid is subsonic in some places and supersonic in others. This is encountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security 7 o+ j5 d) V, X9 r* o7 i9 Xmechanisms to be circumvented. # H' R# A+ ^; I8 hTraveling Wave Tube (TWT) 2 Y4 T$ M9 U* \% b( rAn electronic tube in which a stream of electrons interact continuously or repeatedly 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 ! m3 N8 Q2 u" h7 g: A# V/ ]the microwave region. Traverse (1) To turn a weapon to the right or left on its mount. 2 x! N1 F4 b( k- X$ F# r(2) A method of surveying in which lengths and directions of lines between 2 k$ g; t7 J2 \points on the earth are obtained by or from field measurements, and {1 Q4 t9 I: {! z+ qused in determining positions of the points. 8 g7 ~: h# {3 H3 [' }, a- B$ qTraverse Level That vertical displacement above low-level air defense systems, expressed both ' P0 h! {( M* Uas a height and altitude, at which aircraft can cross the area. 6 P& V: N* ]6 ?TRB Tactical Review Board. # ]% h+ ?5 j; v+ ~8 R# _TRD Technical Requirements Document. TRE Tactical Receive Equipment. & v" @% } F: I. |3 @2 U, U( qTREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. , D$ Q% N2 Y0 ^1 {6 L, J6 M7 Y, u, YTREM Total Radiation Environment Model. 4 j, l( v, E$ N& i) @, i/ W" q. A, gTREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. v4 s4 x7 J: JMDA GLOSSARY, VER. 4.0 T 7 E2 _6 r0 `2 |306 8 @3 Z M6 q( [TRG Threat Reference Guide. , S6 j5 U9 o) ]# jTRI-TAC Tri-Service Tactical Digital Communications System. TRIDENT Class of US ballistic missile submarines (USN term). + E$ ~: z4 o! \- k2 e) r4 XTRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). " W2 D: B9 A1 e3 J# U1 H. FTRIM Toxic Reduction Investment and Management. 7 e( W! ^6 J( k3 u* iTRM Technical Reference Model. TRMP Test Resources Management Plan. . F& o8 H5 _+ b0 B' i- WTRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains - Q8 `2 t* e; E8 H8 W; nadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. - j- A$ g9 q! ~1 ^! u' ]! _' ]7 \Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the 2 Y. j5 O5 g: [; y, U7 E% Rtropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to : R# y+ r. U7 _( h$ ]the tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or . ~4 a7 I' Q. l! {less complete. % I) ?+ s3 g4 z5 l3 YTropospheric ) `0 N3 ^7 T) y/ e lScatter The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. , w- q$ H& q8 l& a: I& p L& ZTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. 5 C; b+ i( ?2 M8 P3 ITRPC Technology Readiness Planning Committee. % A3 Q& {7 _0 m O+ m& {2 r" rTRR Test Readiness Review. 4 v' L- Y' o9 e7 iTrusted Computer System/Software + K- u' N0 r! e% | w5 @& IA system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. , o: \( t9 t+ e* sTrusted 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 % U! R( p9 B) i4 X# h+ O6 s( Oof the Trusted Computing Base and cannot be imitated by un-trusted software. * m% n9 t6 _) \5 BTRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T " P/ V* U; c, ^- E. e6 m307 c0 o- _& h1 q4 I' a! X' L7 STSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. , n, g' p0 q: zTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. / v9 p( H) n' e0 s, ?5 Z2 tTsIAM Moscow’s Central Institute of Aviation Motors. / ]9 S! f8 X+ F' `- c/ aTSM TRADOC System Manager. TSMA Theater of Strategic Military Action. / ~& D7 b5 K$ B2 ~' Z& O. eTSP Target Support Plan. TSPI Time, Space, Position Information. : r$ t4 n, n; _, g2 R u1 `5 Y! }: oTSR Target System Requirements.

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TSRD Target System Requirements Document. - c/ _1 ]7 }. b8 [* X& U: ?3 }TSS Terminal Surveillance Sensor. 9 y O. | P% }5 q, `TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. 6 X' W& _* `6 @, T/ TTT Total Time. TT&C Telemetry, Tracking and Command. + k. \5 z8 s& s; ?TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. - b7 e: f. z8 h8 E# ^ cTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP 9 }' J. P1 E, r. Hprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). * N, ?% R4 ?0 a$ A1 K& S) M. U5 v8 WTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. $ e, e1 y% R; M9 |5 UTTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 6 J' s2 l7 f& }308 " [0 F& t! ?& ?) P4 ]( o( ]; }TTV Technology Test Vehicle. 8 X9 h( i! m% C+ `: WTTY Teletype. TUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. # r1 Y W, N* `6 |TVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. / _+ {% J$ k& s* d5 CTW Tactical Warning. 3 i4 `+ U1 B: v0 P% j4 a) w) ZTW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. * ]% y5 e* u9 d+ LTWG Technical Working Group. ( y( n$ H3 t e$ [9 ]/ i* O$ ITWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. ( P5 z/ l$ d, z U& w! f; y3 E1 qTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). TY Then Year (PPBS term). , [( Z3 y! c& L0 ~' u" ]) UTY$M Then Year Dollars Millions. ( j8 f* u" m6 ^1 a. G) aType A - System Specification $ F' {5 t- {8 k) v2 DStates 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 7 I A/ }6 R3 y5 z. \requirements of the system as an entity. Type B - Development Specification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of 1 d9 J: J% D3 G! s& ethose characteristics. % f, A& L- ]9 Y) n: _* CType C - Product Specification Product specifications are applicable to any item below the system level, and 1 H0 v8 |' O. S1 S; h9 v4 ^may be oriented toward procurement of a product through specification of , z( E: x2 ^" I! k% Z2 s' Eprimarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 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 set of characteristics, and associating the characteristics with a specific class of & z+ N# J2 ^" f' I9 J/ w& nobjects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 U Uranium. # |6 J+ |$ B- \% |U&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. U.S. (US) United States. 3 f$ y2 P. s5 F9 b$ S9 J$ ^" ZU.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). * f' V+ ^- O, UUAE United Arab Emirates. UAV Unmanned Aerial Vehicle. * W7 |, `- h- r! F! e. ~# }UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). `8 D- e0 X# a; ^! `UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). & [" ~$ _$ ]- R# T5 P$ c' iUDS 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 , ?! z& l, P; \5 u, ?+ SProgram Introduction (PI) (also called the Program Introduction Document (PID)), ; }$ K. {' A$ h4 l3 |# b6 s2) 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 4 X' D4 ]! X6 s2 \! S+ B+ V( TRange Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. $ F# A% R4 i# |/ YUF6 Uranium hexafluoride. ( _1 T! I# E" H* L* j* ~ YMDA GLOSSARY, VER. 4.0 U 310 E% K; ~2 ^' o! g- r2 {UFG User Focus Group. & {$ I" K) l8 s" o3 R0 P+ n/ gUFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. & }4 X8 R+ F2 ?5 d, ]4 tUGF Underground Facility. UGS Unattended Ground Sensors. # d$ ]% G5 t8 |! z# t$ PUGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. % }! t3 @" q% x1 n( A# [UIN User Interaction Node. 6 i1 x7 l& h: w: L7 ]/ T" WUKAS (1) UK Architecture Study (2) UK Associate Studies. UKEADTB UK Extended Air Defense Test Bed. 1 z& w p8 t0 a9 l7 K2 M4 gUKTB United Kingdom Test Bed. / g f% f/ E4 {% m+ ]! L( s5 q2 cULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. 7 q6 `! v) c9 `+ t3 tULSA Ultra Low Sidebobe Antenna. # F; c+ D, W" H8 u ^2 I4 nULTDS Unit Level Tactical Data Switch (SINCGARS term). 8 _& j6 }& l9 J9 b, ~2 FUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet 9 l' V, X- B3 {. v(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). # Y9 F3 m8 [7 Y; k# ?UMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). # C; x" B1 i' k+ w( QUNAAF Unified Action Armed Forces. . W: B6 {( {+ ?* m/ _UNC United Nations Command. Unconventional * x: |- Z" Z" w6 Y& vWarfare $ Z, U2 _! C* G& v1 O4 O$ p- M) WA 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, 2 n' d9 t4 V/ M1 ^1 Tcovert, or clandestine nature. 8 e" u# v: J9 ^+ h% \Unified Action ! `/ i2 s" Q7 }2 G. p; KArmed Forces A publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or more 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 1 J9 b/ h) j; o: J1 ^9 mwhich is established and so designated by the President, through the Secretary of Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 " Q8 n( B6 t) m) B# L* V. a/ A: `UNISYS UNISYS Corporation. 8 z6 _3 Q: ^! f/ GUnited States 7 z$ U$ `# @# R* g* L1 D# S% k/ KArmy Space Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army + N4 q3 X) [1 b0 N+ N2 ?/ {elements of the SDS system. Located in Colorado Springs, CO. 8 v# h+ d) Z9 x+ M( _United States 4 q0 w. E! i6 j' xSpace Command ' B+ M( _, k I. c2 I(USSPACECOM) The unified command responsible for planning and conducting ballistic missile 3 p9 _. a/ U5 z5 B. Cdefense. Located in Colorado Springs, CO. United States Strategic Command v$ l* I! W, b: c* G) Y- u% ^ U9 h(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic missile offensive combat strikes. Located at Offutt AFB, NE. United States 4 Y' G2 H4 B( ]( sTransportation 5 \4 k& V, k J1 A" @/ t# l+ uCommand (USTRANSCOM) 7 c, O) T9 J; vThe DoD unified command responsible for providing air, land, and sea * v( c! ~: M7 x" b+ Z itransportation 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 ; U7 p$ a, I7 q. C$ L5 Pterminal services, and commercial air, land, and sea transportation, including as ) i5 B2 ^/ r4 F2 i5 z- t2 O( Ineeded to support the deployment, employment, and sustainment of U.S. forces / @& I6 s- ]+ O7 Aon a global basis, as directed by the Secretary of Defense. Located at Scott / |* N) A5 i% R: P3 [1 M4 WAFB, IL.

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Unk Unknown. Unresolved . ^+ Y; U2 N% X5 _% P$ QObjects % V# W& S$ {0 Q; j5 F; UObjects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. % y7 X4 d" z5 N& j! s9 |UNSC United Nations Security Council. % ]% w' [7 }/ D4 t8 A6 S p3 P& g$ _UnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). 9 [4 y6 j7 B1 t& }& L% _6 s0 i9 q8 rUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. ! h5 V/ o. _; f3 j- \UQT Unit Qualification Training (ILS term). " s- T1 V+ Y) L7 u: I! X" iURIP University Research Initiative Support Program. 3 c9 p' w+ T* y3 iURL Uniform Resource Locator (internet protocol term). , `/ v8 u" W. k% f3 T, X& w" ZURT Upgraded RTD. US/UK United States/United Kingdom. . ~8 R D/ s n7 V: P) KUSA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. # G8 K6 c& E/ A7 rUSAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U 312 USACE United States Army Corps of Engineers. 1 _" w3 b8 Q1 X+ vUSACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. ' p1 W; C( |/ v' n- Z, A4 PUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. , T) s( C) D9 f+ j# {% E& ^0 JUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ! a4 a0 v% b% |+ z3 S" T8 }: sUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. . l! B. u8 |# A2 S, d, EUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. USAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. ! [0 h2 \( J X! r2 E, JUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. 6 ^/ z& M* o9 ?/ v% _USAMSIC See MSIC. ' K1 @3 X5 H% m0 ~USAMSAA U.S. Army Materiel Systems Analysis Activity. $ ]: d; f% h7 V3 qUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. , n- s+ f3 \* K5 O4 F! J0 JUSAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. ! c. ]9 N/ `" R7 cUSARPAC U.S. Army Forces, U.S. Pacific Command. r0 T1 C: i; ^; r) DUSARSPACE 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 ) T" H+ W3 W7 C5 u9 iUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. ) [9 o% i2 j2 D1 F$ `! u' _USC U.S. Code. USCENTAF U.S. Central Command Air Forces. z1 ]2 S2 i% U* V, m: t9 lMDA GLOSSARY, VER. 4.0 U ' E- Y4 o" I' c, s) p# T& E) U313 9 S7 M7 k3 {2 Z' p9 b0 }USCENTCOM United States Central Command, MacDill AFB, FL. * p5 U0 e# I, g5 J. @4 KUSCG United States Coast Guard. 0 o) e7 A- v; z& @/ m; k" ?USCINCCENT Commander in Chief, U.S. Central Command. 7 e; M2 D# j$ b& j+ T% N: Z! nUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. - E0 Z1 n- C& ~1 Z$ }USCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. $ W3 o/ R6 f |# W4 O! s; Z# BUSD Under Secretary of Defense. # U v/ |6 V& P7 QUSD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. * x7 Y+ f' {0 T3 ^; |! s& ~/ z# MUSDAO U.S. Defense Attaché Office. 5 {. u0 R) C9 P/ ?5 y8 TUSDELMC U.S. Delegation to the NATO Military Committee. 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 (hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational 3 i8 t6 ~ i5 b) i* o+ ~Evaluation System (UOES) Prototypical system developed and tested as part of the early phases of the ; Z% a, G% p t. q$ O, _development process. A UOES has two objectives: (1) testing, evaluation, and 3 t$ E1 M1 w1 o" x( Ytraining for a system proceeding through the normal acquisition process; and (2) 2 o% X! K) {; o* D: @contingency defense capability should the need arise prior to completion of the $ u2 G$ X5 X- x2 q5 d" r7 onormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. 1 q. W! V( z) q% s% D7 gUSFK U.S. Forces Korea. 1 B5 v6 `" \7 i! D% hUSFK/CFC CSFK Combined Forces Command. USG U.S. Government. ; `7 [- s3 A9 L' }! |USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U - p: I! i' Z E! k7 t* _314 USLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. USMAR- FORCENT U.S. Marine Component, U.S. Central Command. 9 R7 o9 v- L3 T7 x: g- aUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. , n- g, Z- v, _7 u/ m4 `# j* fUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. 7 h9 P9 d/ b3 t( j! S( C( YUSMC United States Marine Corps. : T K; H1 `1 X# uUSMCR United States Marine Corps Reserve. , x0 i' ~3 _7 } U2 G {USMILREP U.S. Military Representative. USN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. . O8 w. Y9 W( X" ZUSNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. USPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. ) M9 D1 W5 D% N' {USREPMC U.S. Representative to the Military Committee (NATO). 3 n& c" h8 i2 f, B! U ^7 p& yUSSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. : `; R' V& y+ F/ F$ b( V8 `USSPACECOM See United States Space Command. # ]. h+ Y- C3 F9 U; B1 fUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. 0 j; M5 p# \& r( |6 w. ^* n' |USTRANSCOM See United States Transportation Command. ) g- @+ K) |; n3 |8 Y/ U' JUT Universal Time. UTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 3 [5 n! d1 ]# F4 M! p! I ?315 UTM Universal Transverse Mercator. 7 P$ k, Y2 Q' I) S; LUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. * G0 Y% B( U) K z5 m Q/ S* CUUT Unit Under Test (ILS term). * e6 p( r9 ?! R- x9 o7 tUV Ultraviolet. UV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). " t1 M/ E$ b: b3 Q9 VUVPI Ultraviolet Plume Instrument. 9 t. l/ K4 j( Q+ bUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 316 V Volt. V&H Vulnerability and Hardening. 7 l# Q# s# t# v1 U/ }8 _; \+ ?7 CV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. / `3 |0 B. @7 [5 Z, [Validation 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. 5 e* r/ z( e( g7 {+ G9 lVAMOSC Visibility and Management of O&S Costs. 6 D' \2 n8 M' e2 \* Z" F9 t0 HVAR Visitor Access Request. Variability 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 S4 j! w. ]$ `4 Z7 j1 R# Vfactor introduced to average the effects of orientation, minor shielding, and 0 r" b/ G. V8 ^) |8 n( c: f5 `uncertainty of target response to the effects considered. * Q( Z2 v/ G4 a0 L9 s9 g$ CVBO Vertical Burn-Out (velocity). & v# s' Q; \# F7 JVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. 8 S6 Q; ]5 ~2 y) n5 T( A2 @6 \VDC Volts Direct Current. VDD Version Description Document. 0 G/ `6 B; _$ n1 I: oVDU Visual Display Unit. VE Value Engineering. VECP 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, : }, K2 P9 |, k" s2 }: P; W$ Hcalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified requirements. 0 X6 I0 N8 W$ [$ ]* \/ l$ b5 R; yVESA Video Electronics Standards Association. 9 P1 r$ t7 f9 Z. WVFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). . b' E, P8 q7 w( ?* cVHF Very High Frequency. e; M l2 X* D( MVHSIC Very High Speed Integrated Circuit. / }* u" N$ O5 S7 n: G; JMDA GLOSSARY, VER. 4.0 V 317 + E6 m; V" J' k) @9 w4 j, W. {VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 : U+ S; M! }6 s. nOperation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a 4 w7 C1 D u# K7 u, ], u& kgimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. $ H" M# X% d% J0 ~9 a gVIS/UV Visible/Ultraviolet. Visibility Range , r9 r8 @2 E P(or Visibility) ) q( R7 H) A! O- S: z3 F9 YThe horizontal distance (in kilometers or miles) at which a large dark object can just be seen against the horizon’s sky in daylight. The visibility is related to the clarity of the atmosphere ranging from 170 miles (280 kilometers) for an exceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze or fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). ; A* j/ V) \0 y: P& WVisible Electro- ! F. }- Y0 O3 `! n* c5 U+ BOptics - f! c- a/ V! O' ATechnologies/techniques employed by optical sensors in the visible portion of * _. S/ V, g' a R: X8 Othe wavelength spectrum. 0 W. b2 ^7 b9 E C. ~) KVLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. 1 h' p' }6 a" q5 s5 H7 R$ {VLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. - K7 C( O+ ]5 x D/ _VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. / x) M' n! B; k9 dVME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). 6 Z3 C+ }: y! R. b j4 LVOX Voice Actuation. # ~9 f7 g6 E" g8 h7 R7 i, e' a$ S1 cVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. # w9 c3 m I! [. t2 ]% `, ?VTOL Vertical Takeoff and Landing [aircraft]. * `/ O: v; _2 b" q. b! ^VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. # e( S9 k6 |8 }2 `: Z+ |% gVUE Visible Light/Ultraviolet Experiment. # n6 s- o% @: cMDA GLOSSARY, VER. 4.0 V " s6 o% @/ j5 j1 P318 Vulcan UK bomber. 9 k6 t! [+ B$ A" AVV&A Verification, Validation, and Accreditation. ) P4 X! b, u' @VVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. 5 L0 F- m! q, ]MDA GLOSSARY, VER. 4.0 W 7 b$ e# S# o' n319 , v/ W7 l8 s7 C7 r% ~W/ With. $ t+ Z( t. ] M' ]0 \w/o Without. 7 f+ N5 h5 c/ P+ l* Z( A* B8 mW/TD Warning/Threat Detection. - b# [8 s" j7 U& M+ ^ `- V) `WAA Wide Aperture Array. & p5 D7 ^% J# |# X& A: H/ r9 JWALEX Warfare Analysis Laboratory Exercise. WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. 8 D. B( y x7 v1 j+ B9 m3 fWar Game A simulation, by whatever means, of a military operation involving two or more " Y+ W- ]* [+ k- C+ @8 j- jopposing forces, using rules, data, and procedures designed to depict an actual , p7 E) J( J" U4 j$ k) l4 x2 bor assumed real life situation. Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the JNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. ; @& @# f3 z9 y2 q0 |, jWarhead Section A completely assembled warhead including appropriate skin sections and related components. . r. P: h' F" e) _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. $ e. k+ u8 |+ ?' N2 T AWarning Order A preliminary notice of an order or action that is to follow. 8 Z* u( s: z L8 W( I: VWARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve 7 b$ N* [5 m3 y- X1 `- gModes (WARM) . P4 ^1 I8 R! ]Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for 4 b# T$ [! c. Q( y3 N% |wartime or emergency use and seldom, if ever, applied or intercepted prior to such use. WAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 WASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. 8 o& @' ?3 P* i: ?3 }0 HWatch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs ; b( O1 o- y: M$ b. D) b; Zto watchfulness without raising DEFCON. WATS Wide Area Telephone System. 4 W/ D z2 ]$ [5 _6 r6 ?( O2 s" e; e! RWAVE Wideband Angular Vibration Experiment. : I- K) \; C2 B' k2 o* FWavelength 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. 8 O0 `) g1 D" m3 g4 EWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. ; h) _1 ?$ I- s& J# w* z- \0 nWCC (1) See Wing Control Center. (2) Weapons Control Computer. . [5 X' |% N, FWCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. 9 u p( [* Y! E+ HWCS Weapons Control System. 8 O1 u% _# W+ C- o5 O5 cWDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.