航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 Theater Missile Defense Council (TMDC) A consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for - L7 D6 g& V- \7 E9 @Acquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents " L& [5 j/ _( c: ?& d" Uand Program Managers. Theater High . T6 s/ O) u7 {& ?; T( K& mAltitude Area Defense System (THAAD) A ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at # ~7 ?" I, ~' u* ?$ t1 D1 hgreater distances. Will provide an overlay or upper tier to point defenses such as & L+ s& ~ D) a1 t9 m2 Q, {# L6 d9 sPATRIOT. . O3 l- t4 z3 L1 Q0 @2 h( eTheater Missile $ m; p- H! _4 H) Y- p% c1 I: o3 g: T(TM) - g7 [! f1 z% t- HA 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 9 g3 d: C& R5 g# L& y$ h6 aof attacking targets in a theater. Theater Missile * K* _. z8 Q5 m0 E# uDefense (TMD) . c$ f* v& z& j0 lOBSOLETE. The strategies and tactics employed to defend a geographical area k& L5 Z- `( {' Moutside the continental United States against attack from short-range, ' B; U& Q- P! jintermediate-range, or medium-range ballistic missiles. Theater Missile ; U5 l: e5 D5 T8 f6 @% ]Defense Ground- Based Radar 9 y; ]; R1 o- N5 k(TMD-GBR) 3 @! V8 ~6 S/ T$ OA ground-based, air transportable sensor that provides search, tracking and ' x. Z: P! h$ C" Sdiscrimination capabilities for the THAAD interceptor system. Also referred to as - q3 J. ^, B: p; qTHAAD Radar. Theater Missile ) }) B7 M0 w$ ODefense Initiative (TMDI) 0 _& W4 R$ N. t, y9 D0 EAn initiative under which all DoD theater and tactical missile defense activities are carried out. Section 231 of the National Defense Act for Fiscal Year 1993 (Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. $ a) q1 }% C S$ v& }3 A% uThermal 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. * t" q/ e' D% w) N$ h2 F/ x" KThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. 5 P. Z: k/ b! k3 M9 X4 m: v2 o/ @6 O8 ^Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. * U W0 H( H* Q3 GThermal Management Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. Thermal Radiation 2 W8 x: i' N/ S$ s' }) l$ ]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 , F0 P6 H! o* B5 b" }- Fultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, ; `6 i {1 z |4 O8 ~emitted by the nuclear weapon residue by virtue of its extremely high , U) d% n# j8 M$ ]) dtemperature; it also is referred to as the primary thermal radiation. It is the 0 Z3 h7 x% [+ ~: r& z; rabsorption of this radiation by the ambient medium, accompanied by an increase , `0 @; t, q ~in temperature, which results in the formation of the fireball (or other heated - ?- Q' P. B* } D! qregion) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 299 ( o6 }0 f. Z3 d/ [4 A$ wThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; v& K- Y# z8 e: oit is a region of more or less steadily increasing temperature with height, starting ; T: G0 l9 V# s% x: R2 wat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. + G+ H" t% I3 d# |Threat Characterization 2 j/ D' h. j/ }* jAn assessment of the nature, magnitude and intent of an attack in progress. 0 }4 f8 d; Q' c- y: [# u# {7 ~Threat Corridor % s. ?8 r7 U7 y; C5 o! N(Threat Tube) A tube containing all the objects originating from launch sites and aimed at " t* I. b! ]6 Q* |& Gtargets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management * {; c, A3 o- Q( Z5 r- }computation. 6 Y% l3 K8 b3 R+ M! @! M' ?3 d2 [" AThreat Scenario A hypothetical example of the employment of threat systems against ballistic " T6 M# U! N. r- ?missile defenses for the purpose of analysis and evaluation of those defensive - k+ [6 {- f& r9 X5 B4 f% H7 J' Jsystems 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 5 f, D3 Q& ?9 F+ I9 Cobjective. Threshold " A0 `' h/ ]& M6 qDefense 8 i( ]6 C8 S% VA defense strategy that concedes that the target can be destroyed at a price 6 {8 z0 F, R* r0 N. U; F+ Uthat is not prohibitive, but the presence of the defense is thought to require the offense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. % i5 v/ Q5 \9 @) B' Z* V4 kThrusted 9 t: N( r8 ^, K$ s {& A. OReplicas (TREPS) , U0 F& b% ?' W( K7 ~* d* EConical 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 + T/ v1 ?3 X; O2 n* e& F5 mphase. : `0 e1 N+ q/ k6 C) b1 hTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. $ t2 \7 d4 Z; i, s0 W+ l, B" t9 p2 ~TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. / P; S& _6 ?+ ?: ]TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. / U8 E- S' Q$ I7 C! X; K# h" i' FTier An integrated set of SDS elements that address a particular phase of the threat (e.g., boost phase). ; K5 k- a, E& K: P/ j5 g- lTiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. . `2 ^; t$ J n0 jTIIAP Telecommunications and Information Infrastructure Assistance Program. 9 E5 ^: {* O1 g( N$ UTIL Technical Insertion Laboratory. 2 @) x: a: ?7 ` j& f4 mTIM Technical Interchange Meeting. # n$ s4 H( I4 g2 pMDA GLOSSARY, VER. 4.0 T 300 Time-Phased Force and Deployment List # N4 j' Y6 L4 P7 H& |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 / |8 \6 r7 [- s1 X2 T% I& |- M5 Hdebarkation or ocean area. Time of Flight & u* S" S4 \7 _0 @4 \- t1 f7 ~(Max) The maximum time for a booster or vehicle to perform its function from time of + M _0 x! N' y# |6 S: Alaunch. j& |4 V0 r$ R+ OTime on Station The time the sensor is in its operating position. Time Sensitive Targets . }, e2 ` _. d4 Q0 d: ]4 |9 TThose 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). . {9 |1 U* i9 I, nTIN Theater Intelligence Networks. 7 z/ e! V. [; S: H! f# e' Y+ T; yTIP TOPAZ International Program. / w0 _' x! N* V& s% o& m* rTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar 4 q2 f! Y6 M; }1 n4 L2 t! v- BTerminal (GBRT).) # f0 f4 j$ j! l, E2 {5 kTIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. 3 l- H' M( r& P1 y" F9 CTIWG Test Integration Working Group. (U.S. Army) 7 V8 Z! S: E5 p) ^TL Team Leader. TLA Time Line Analysis. 5 J1 f) ]9 A: Q% y" wTLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). + o7 M8 z+ ? i: T. wTLDD Top Level Design Document. TLV Target Launch Vehicle. 3 I3 A3 {0 v* f! R2 {TLX Teletype. + k3 W M2 C. V; g% N8 NTM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). TMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T ! A! W( z2 ]) b! p" c301 / t \4 A- C GTMD C ) v( ^2 E, Q$ d. {% @9 S2 @3 I Those assets that provide connectivity between and among Theater Ballistic 1 n1 d& `, Q7 T. k7 ]' M8 l3 o+ qMissile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). 0 d; R( c1 M* ^( dTMD 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). % V8 W! c. F$ x3 bTMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. / _+ _; |: w/ DTMP Technical Manual Plan (ILS term). 2 w: B/ \# N* G8 c- p* @! {TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. ! B' X" `: ^$ qTNT Trinitrotoluene. % |$ A, o1 L5 _; P( \2 m: ?# fTNW Theater Nuclear Weapon. 5 i# r: h) v- _% oTO (1) Task Order. (2) Technical Order. " x# W4 E6 Q( ~TOA Total Obligation Authority. 6 r" l6 f' h* ?& B! C% |TOAM Tactical Air Operations Module. TOC Tactical Operations Center. " D5 q) l! ~+ r0 C$ E7 G2 G2 cTOE Table of Organization and Equipment. ) R! Q1 J R% jTOF Time of Flight. , N9 u* M! j' k* ~: z# c. ]TOI Track of Interest. TOIA Task Order Impact Analysis. : ?4 r' r1 ~2 |8 e6 \! |5 hTolerance The ability of a system to provide continuity of operation under various abnormal . j7 u+ [4 R n Q: }conditions. " y3 {+ `5 d, T) b+ zTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T # e# X; C* U8 \( q) v) s, K302 " G+ |8 V6 z, I6 x: V, O, RTOMD Task Radar Management Details. TOMP Task Order Management Plan. 2 N" n" P* r" V9 h& a, lTOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. / [& P6 [* j2 h1 gTOP Task Order Plan. Top-Down Pertaining to an approach that starts with the highest-level component of a " d- R* T3 [; L0 chierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. # \$ l9 D& Y- e( X5 J/ G1 MTop-Down Design The process of designing a system by identifying its major components, 6 m0 x9 B; A; x4 x2 H. Vdecomposing them into their lower level components, and iterating until the 5 X; q3 a- _* `/ fdesired level of detail is achieved. 9 N3 R6 P) ]- }8 ETop-Down ! Z0 p& Y; @ |$ U% FTesting ; m; p% u- m! B; EThe process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation ' O: L: S% p2 t) T$ Z4 P- \Authority (TOA) 7 U r" l1 p) ?# cA DoD financial term, which expresses the value of the direct program for a given fiscal year. Total Quality Management 1 [" T) Y. ~6 _# [( S" ? W7 n(TQM) A management philosophy committed to a focus on continuous improvement to " B6 R; w* ^: d- G- [! N0 W3 {product and services with the involvement of the entire workforce. + }4 h8 F' M0 B0 f5 L) jTOTS 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. 9 ^/ T$ B( `9 B" l7 v1 r: ZTPALS Theater Protection Against Limited Strikes. ! C# w5 u7 H# _" N/ ~9 KTPBM Terminal Phase Battle Manager. 1 `! \' r/ Q% zTPD Mobile Tactical Radar (US). - c! X) P6 G# p' t7 @% r bTPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). 0 j7 {$ \% A9 C. |' ^5 S, bTPFDD Time-Phased Force Deployment Data. ' C7 W/ I4 h! h8 F% ?" R4 J. ]7 bTPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. . d1 g: |2 ^" m$ u8 ^TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office 5 w7 q7 j) @" i: D7 DTPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. ) V0 y7 b, C) D( Z! R% L0 lTPS Thermal Protection System. " W1 N: j/ B1 A1 kTPT Theater Planning Tool. 1 N+ v& w) u0 o- h" PTPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path 3 j; p6 I- k& I+ J Q) Q(upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or ' d2 p# p3 m/ z0 `more products having a predecessor-successor or master-subordinate relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. (2) To display or record the successive positions of a moving object. 5 j' u, m$ U: F" N ^$ Z w( M(3) To lock onto a point of radiation and obtain guidance from. ; P% Y( ?' r$ X9 m; X8 k(4) To keep a gun properly aimed, or to point continuously a target locating # l% I+ Y' b9 m6 k& Q; I# rinstrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the 3 b3 M9 P6 S4 }% r9 d3 Yearth. % [5 B6 h# q4 v l3 T# k4 t; a1 N# c' ZTrack Assessment - N! k/ v0 [3 e, ]2 pThe Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. Track, Birth to : X6 }7 o. F/ g: b6 G! {0 N6 T# j/ |: {Death The maintenance of an associated track through all phases of flight (i.e., boost / ^! C! p7 @2 s- [8 o; ~to reentry). 7 ~ A- I# `7 `/ K' zTrack Correlation The combining of track information for identification purposes, using all available $ ]8 x- l8 t& D# Z$ S9 `8 O) G6 Udata. Track Extension This term usually applies to improvements in track estimates by use of new data. ! }# w3 }) z* B/ z5 ]# ]5 z% UIt is sometimes used to describe a process of target extrapolation to a future time ' u# a8 ], d! d+ B$ Eor place (e.g., reentry). : L/ Q& U" m; l2 b+ y( K1 N: Z6 wMDA GLOSSARY, VER. 4.0 T 304 4 s& p5 |& p9 m5 \% R$ J5 gTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS + H4 a! A- {# v! v! G' tmeasurements with irradiances with confidence of association; or some subset of 8 r: j% O+ f( E9 w- Uthe above. Track File-Track History A set of individual track reports on a particular object, which taken together s* y5 ^9 x3 a4 d4 Hproduce useful approximation of that object's future position in space. 8 j/ V1 {$ R5 BTrack 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 # }1 s) T9 f/ C. Tby filtering. 8 `4 U; m% J7 C) m% N$ GTracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and 2 s7 D8 M# q! s4 kPointing 4 R) k2 T% d2 ^8 jOnce a target is detected, it must be followed or “tracked”. When the target is - ~- a7 M$ V. D; [% Q8 E' Esuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing . `* f) ?) D N& ^. Bare frequently integrated operations. Tracking Range * {+ B( S2 V! S0 u. N$ @(Max) The maximum line of sight distance at which a sensor can maintain track of an object. 2 N8 @0 P/ s- tTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector $ E/ N. y9 E6 X' y2 e# ]4 Qof an object. The process typically requires observation from a number of & `- p0 R1 q* g9 hframes. Track Production Area An area in which tracks are produced by one radar station. Track Symbology Symbols used to display tracks on a data console or other display device. L. d: M0 m |' Q8 u/ u" f' V5 BTrack 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; : b; z- l7 l" M( m% I: Xlateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. * |! V2 A7 o7 bTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. `( \( L& \. O( oTraffic Capability 1 Q' D0 L0 k9 G. W6 N( z) W. k, hMaximum The maximum number of objects per unit time which the sensor system can maintain track files. 3 |6 X: C% ?! mTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. 9 R* F8 B+ E% b8 B2 pTrain Threat geometry with objects placed in a line (string) along the velocity vector of reentry. Trajectory The curve described by an object moving through space. Trajectory Histories Trajectory information on targets recorded over a period of time. . l( A! D; O3 U' p6 B& {3 m; O" p& hTRAK A data base management system (not an acronym). $ z k1 Y" h8 JTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. * n2 \, {4 R7 e7 h: T4 _MDA GLOSSARY, VER. 4.0 T 305 : O% N/ O5 Q2 i0 g$ l( dTRANSCOM [U.S.] Transportation Command, Scott AFB, IL. 4 Q6 [3 ] Z2 k0 T. Q, rTRANSEC Transmission Security. ( J4 K6 c' d( O1 tTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. 9 } V. y. ~ o" uTransition to / D. g1 ?8 D- W' M- p- V& tProduction 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 1 W0 ~9 E( q) \& jensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission Security 4 P9 |0 X4 z, D7 j$ a( z(TRANSEC) $ s$ ?; D4 M- d/ V2 {& ~That component of security, which results from all measures, designed to protect communications transmissions from interception and traffic analysis. (See COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative speed of the fluid is subsonic in some places and supersonic in others. This is & V. H% Z$ ]* Sencountered when passing from subsonic to supersonic speeds and vice versa. / F/ y. o( q. S" zTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. , q# ^8 D0 u( sTrap Door A hidden software or hardware mechanism that permits system security # j2 _% w: G3 O1 I( L0 `" Vmechanisms to be circumvented. Traveling Wave 1 T1 W3 T3 \/ e; Q, oTube (TWT) # R( t6 m* V- Z cAn electronic tube in which a stream of electrons interact continuously or $ H2 f! H- s+ I4 w2 Erepeatedly 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 6 T! Y* n) X1 n6 e; fthe microwave region. Traverse (1) To turn a weapon to the right or left on its mount. (2) A method of surveying in which lengths and directions of lines between points on the earth are obtained by or from field measurements, and used in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both ! z8 E" H( q# T- I# L/ Pas a height and altitude, at which aircraft can cross the area. ' _1 h! B9 N& C/ pTRB Tactical Review Board. TRD Technical Requirements Document. TRE Tactical Receive Equipment. 5 H# d& m/ L: N+ ^. K8 Q1 c+ H4 QTREA Transmit/Receive Element Array (THAAD). & @9 [* h! V4 j! L$ @4 B2 T) rTREE Transient Radiation Effects on Electronics. / B, I) n& [, w K: P: yTREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T # Y9 }) Y9 q& w306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. ) t& j( X7 R, HTRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). & B) U5 E2 _5 T% O/ LTRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. / h' x/ a- t8 n% K& d# X9 xTrojan Horse A computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate * n5 x* v* X tauthorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. ) u H% P9 x$ N3 cTropopause 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 tropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to ( Y8 q) O- j, z5 F4 x7 N+ rthe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or 0 q9 e3 t! y2 Iless complete. Tropospheric 9 V% D1 _; C/ [& l% H. t: _9 \) Q$ IScatter * v% e2 s n- `# L% f3 `5 zThe propagation of electromagnetic waves by scattering as a result of 2 J; @' o* [9 y1 Birregularities in the physical properties of the troposphere. 2 x, W1 e; b$ n) ]TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. 5 p! i& c7 o" `5 @. K(3) Technology Readiness Program (pre-acquisition program status). 0 i. X4 \0 D" v$ M+ f(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. Trusted " c/ j8 \( K( t( ?Computer System/Software A system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. Trusted Path A mechanism by which a person at a terminal can communicate directly with the ! u' w/ j4 O3 gTrusted Computing Base. This mechanism can only be activated by the person 8 f" w5 O5 x9 i! r+ ]of the Trusted Computing Base and cannot be imitated by un-trusted software. 8 q) z4 ~" K# Y3 |. VTRW TRW, Inc. - M# j2 N5 f9 M7 Y2 w% oTS (1) Terminal Service. (2) Top Secret. & `4 Y' R: ]) L( UMDA GLOSSARY, VER. 4.0 T j) X; E' k9 V% ]7 c3 p2 Z307 0 M/ u9 U ~6 E2 FTSA Technology Security Analysis. 5 G8 r: a/ {7 U, \0 WTSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). $ K2 F! Q8 p9 X: YTSD Tactical Surveillance Demonstration. ; g3 n( I4 H7 A! X& qTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. ) R# E% u4 B, n9 n _ I4 [: d! STsIAM Moscow’s Central Institute of Aviation Motors. * i. Y. V7 J) jTSM TRADOC System Manager. ) v: W' U! Y9 \6 B; U! CTSMA Theater of Strategic Military Action. - _5 l* V/ W* N' Y2 ZTSP Target Support Plan. 9 S6 y$ G( G; ]" e# k4 y- dTSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. / |. _0 ]4 ?. m4 p6 ZTSSAM Tri-Service Standoff Attack Missile. 8 _* _( v; ]7 C$ ?8 l9 uTSWG Target Signature Working Group. TT Total Time. : r) u' X- X" g; R) I: G$ I J, M/ \TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. TTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. 2 _8 [6 v- @! `% T/ y. zTTD&D Test Technology Development and Demonstration. A portion of the CTEIP ! V5 W* ]9 \9 @, r# hprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. * x3 h, T- ], N" MTTEL Tools and Test Equipment List (ILS term). 3 n* j; O+ ^) n' c5 N9 W6 QTTL Transistor-to-Transistor Logic. # t. t( r% X) l6 nTTP Tactics, Techniques, and Procedures. ; y4 K% W7 H! v' u) Q n! M9 w* fTTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. " n, Z T4 q4 }0 k1 f5 cMDA GLOSSARY, VER. 4.0 T 308 TTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. + G% W) T2 H# I E8 H! q7 QTVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. 8 B: `- l7 \- ]7 `TW Tactical Warning. ! A/ X! p+ d) v: ]+ y! S& BTW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. + @0 K2 p/ ^. GTWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). 6 f3 r8 k# l# Q* E: u) CTWT Traveling Wave Tube. ; G4 B# O) ]8 D$ q5 YTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). " H0 H3 | C( M6 v! A! qTY Then Year (PPBS term). / E1 \+ z& J4 j1 Y8 i2 H1 B; iTY$M Then Year Dollars Millions. / i6 p- F7 V6 d9 ]% n6 EType A - System Specification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission requirements of the system as an entity. Type B - Development / q# ~# {/ v% a" n0 uSpecification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of those characteristics. Type C - Product * P3 s' S( ?# n$ `+ NSpecification 2 `& W& t3 t7 P; nProduct 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 items including computer programs. 8 T' b: G u" G/ M1 o& @% YTyphoon Class of Soviet ballistic missile submarines. 7 J* O' Z$ Q9 t: N5 L6 y% u6 iTyping The act of recognizing objects by measuring a set of observables, computing a , A) @* g8 u _" V$ L( |set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 5 Y: _6 K/ ]; o, ?U Uranium. 8 [* x* p U: t* I) s: p8 a1 f% lU&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. ( |8 Y D, {) F5 v4 H( Y8 |U.S. (US) United States. , z: w: ?, } l+ O7 `* fU.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. . I9 s0 w$ Y8 d+ LUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. 5 O# Q( s$ r6 T( G1 sUAV Unmanned Aerial Vehicle. 7 {+ p8 M' a$ Y# T4 \& ?& n; {UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. 5 e0 A" |( k+ m+ p* cUCC Uniform Commercial Code (US legal term). ; D- C* B7 L* f2 }2 mUCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. " A4 X' Y$ N, l+ V0 z' b, YUDMH 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 + k3 j0 I4 A! }/ q) _4 Ycapabilities and plans of test ranges to support program requirements. It - s2 F0 [7 _0 e- R% w0 J( X9 econsists of a series of six planning and execution documents: 10 are the ) L7 u- {+ ^$ t7 { G4 w- W% m. rProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) ! l, n; w ~) ~/ L! ~- o# POperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the $ N) n6 \% h9 S' H$ C1 Q9 v/ u( oOperations Directive (OD). The UDS was developed and is regulated by the 4 T0 v" k8 D1 H, x! |% y3 m1 PRange Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. % b0 d/ F9 e: B9 nUF4 Uranium tetra fluoride. + W, F1 w+ p3 @5 ~UF6 Uranium hexafluoride. ' O9 H( H$ k9 O8 Y. UMDA GLOSSARY, VER. 4.0 U 310 UFG User Focus Group. 3 b( x; M$ d: h! ?UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. UGF Underground Facility. & l1 w6 v. k2 |$ r4 e7 \UGS Unattended Ground Sensors. . `; j/ U( H: C" c# t# }UGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. ' @/ w8 g# h: I: T$ \5 h# j9 s; ?2 SUIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. : P. G) z8 O# b8 cUKEADTB UK Extended Air Defense Test Bed. 0 A- h1 h ?6 }/ g" _UKTB United Kingdom Test Bed. / q2 K& }) {- b+ F# n; T. d. uULCS Unit Level Circuit Switch (SINCGARS term). : c2 Y' e. v' @" n) I# hULS Unit Level Switch. . S m& i& G t( xULSA Ultra Low Sidebobe Antenna. 8 F+ d7 H7 r- m4 ^0 dULTDS Unit Level Tactical Data Switch (SINCGARS term). % \) k. p# m0 ?5 {Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). + V; S- A' U, R* k' qUMD Unit Manning Document. " s2 X) y- ?* r& rUMMIPS Uniform Material Movement and Issue Priority System (ILS term). + A; d& k0 u2 O* `( j9 h" C0 O* g! sUNAAF Unified Action Armed Forces. & j# N0 S2 e2 d! M2 ~* `/ X% kUNC United Nations Command. " m M, K2 q# z. O% ], F% kUnconventional Warfare m3 P) y ?# O* MA 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 4 |% M2 z3 T: b* @0 Cand escape, subversion, sabotage, and other operations of a low visibility, covert, or clandestine nature. Unified Action Armed Forces 2 j+ t6 `$ s! Q- C5 e* F7 |. o# QA 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. 7 x$ g8 B2 R5 gUnified Command A command with a broad continuing mission under a single commander and % \3 A1 ~- P. Q, @6 J- r0 \ ecomposed of significant assigned components of two or more Services, and $ p) ^9 O% x& r9 g( M% J% ?which 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 / k% M" ^2 D! h; t$ I, S( U311 UNISYS UNISYS Corporation. $ o- H8 _- g9 G$ [/ A+ WUnited States Army 3 ^' [* j; H$ u( N: O+ z' I. Y- uSpace Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States ( r6 _5 j5 m! }" L$ ]Space Command (USSPACECOM) A& n! Y* @0 o4 FThe unified command responsible for planning and conducting ballistic missile 3 n4 R6 N: O9 G: d& Rdefense. Located in Colorado Springs, CO. United States Strategic " B8 P1 r0 R, h' b0 TCommand (USSTRATCOM) $ s# Q! _# o4 {! l0 y' iThe 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. * F0 Y, _' F2 D, v! \United States # g, m E4 Z9 o& eTransportation ! z' F2 s7 |! t1 u' |) uCommand ) r. K, A0 h0 V(USTRANSCOM) % X; J: a( D( B1 W9 ZThe DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of 6 I# i/ i- f* A+ Q) M) owar. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces + a; N1 n. H+ o' v/ oon a global basis, as directed by the Secretary of Defense. Located at Scott 3 V3 h5 E- z9 B& v7 E- bAFB, IL.

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Unk Unknown. ! L& _+ I/ }1 o& i; eUnresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. UNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. ; U D% e q Y: vUOC Usable on Code (ILS term). UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). + x1 E4 P( U: c/ h% S- C v! x* cURIP University Research Initiative Support Program. ! T2 J" G/ X3 y" L7 DURL Uniform Resource Locator (internet protocol term). ) D- V4 G5 x; V/ YURT 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. USAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U * k" L" J; }6 z+ |, |312 USACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. 7 o7 _; H1 O8 y% K1 o- R( a( uUSAF United States Air Force. 3 U" W% q( i+ ~. K( }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. 2 ^5 Q; N/ b8 A8 V+ ?! d* KUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. " I$ q( z6 R, ~" q+ NUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. % j) S, _) R; @USAFE U.S. Air Forces in Europe. ( t. L% F0 D" @2 U& e5 A u/ T6 \USAFLANT U.S. Air Force, U.S. Atlantic Command. 0 t% [; X$ O9 C# H. o6 kUSAKA U.S. Army Kwajalein Atoll. , [% s) J( f3 I7 h s: z) i8 o) LUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. " W8 L. r& o6 N, e0 R9 D: F$ Y: y0 _USAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC 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. 5 P m3 ]! v- m) a8 mUSAREUR U.S. Army Forces, U.S. European Command. 9 ?" d; d; F) t& nUSARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. / K# b8 W5 M) x1 ^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. + m. w5 x7 g9 o* LUSATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. ' c6 `) V1 d0 t1 \9 PUSC U.S. Code. ( v' P/ m" d2 t+ o% b# p6 R* |USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. 7 F: v. [" d9 V" zUSCINCCENT Commander in Chief, U.S. Central Command. 7 Y! N9 J; U+ h# `" M% z6 E) UUSCINCEUR U.S. Commander in Chief, Europe. $ i. _ |( d# \USCINCLANT Commander-in-Chief, U.S. Atlantic Command. 7 Z; V1 c0 z* R) x% O0 B# J, GUSCINCPAC Commander-in-Chief, U.S. Pacific Command. 5 v3 f( d0 x! M$ R. x8 cUSCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. ( B$ F: y5 X t# @; c; UUSD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. - R9 L* u' `: E, t7 _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 + H$ B& j/ A/ @7 h$ Z7 J(hardware) or program (software) that is compatible with a person's ability to / u% H2 A/ q8 e' _6 H( T. Coperate it successfully and easily. User Operational Evaluation System (UOES) + R9 k: a2 {% H# V+ cPrototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) 6 R& r: G' x+ scontingency defense capability should the need arise prior to completion of the normal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. USFK U.S. Forces Korea. ' v% G& e$ m& Z1 q/ gUSFK/CFC CSFK Combined Forces Command. + T: z) g. g8 X: P! e2 p- K' nUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U & E# R6 A( k& s2 x314 & N( f; F* H+ V N2 X* CUSLANTCOM United States Atlantic Command (Now see USACOM). " Y8 n/ h3 B9 t* d& K' AUSLANTFLT U.S. Atlantic Fleet. USMAR- FORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. " s' D% q" Y* n9 z; ^% R3 f; tUSMCR United States Marine Corps Reserve. $ t! R& T* s6 n0 ~USMILREP U.S. Military Representative. USN United States Navy. 7 i( f7 ^/ q& ZUSNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. ) l2 C" I# a3 y- AUSNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. ~, ?2 B7 d/ b. B# \- y9 A; \ wUSNPGS U.S. Naval Post-Graduate School. ) x# g" C! e) E" v6 k% e. dUSPACAF U.S. Air Forces, U.S. Pacific Command. USPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. ( y3 {; \0 j) v3 @# l7 XUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. ; V$ p# S2 ^6 Q- Z* n$ FUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. / _" h M. [5 w0 h) L' E" jUSSPACECOM See United States Space Command. ! b% J, f5 U% c, N" o! P# [USSS United States Secret Service. % x0 y4 f+ ~! i, p6 {' u( m gUSSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. + u9 h1 w5 f4 H% D* I. Q) vMDA GLOSSARY, VER. 4.0 U : G1 @5 y: |; V* U9 ~5 M( h315 UTM Universal Transverse Mercator. % F" z( t! B5 Q* M( i6 YUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). / u% l3 _: J8 p9 V+ GUV Ultraviolet. / Q+ ?1 T/ X+ i# T; Z2 HUV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). 7 k+ K! a2 W V" _/ U6 I' RUVPI Ultraviolet Plume Instrument. 6 J! |, r: p' D! i# yUW Unconventional Warfare. 3 E# m$ b2 u) y% IMDA GLOSSARY, VER. 4.0 V 316 V Volt. V&H Vulnerability and Hardening. 9 \) A6 v* O. S, [/ |( z' AV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. : S$ l) o1 c5 Q' C7 E, DValidation 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. 2 I, B/ F" X; F3 J( g- kVAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases 3 y6 n: t0 a, K- ywith the distance from ground zero; or, in damage assessment, a mathematical factor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). l) f, R, M/ i( ?8 c9 p6 mVCC Voice Communications Circuit. ( J3 W: `5 E% P& G! @6 YVCRM Verification Cross Reference Matrix. * m7 U$ i/ j+ q y- }* aVCS Voice Communications System. + l! K( P- A; u/ t2 _VDC Volts Direct Current. VDD Version Description Document. ) d: p$ M$ I/ i& W/ LVDU Visual Display Unit. VE Value Engineering. VECP Value Engineering Change Proposal. ( i1 m, g' P! [6 S! qVerification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, [( x2 s% y4 E: bcalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end ) a6 q: B& t' c3 r% M4 o! O4 i3 dof the development process to determine whether it satisfies specified , w f q: F/ c! l) s3 y7 x; grequirements. ! {$ X" l1 C' T; A1 w3 AVESA Video Electronics Standards Association. 6 k4 Y; [5 t" q+ ~# p T) YVFR Visual Flight Rules. E* ]4 G% c! u/ d3 Y: `VGA Video Graphics Array (Telecomm/Computer term). ) d; P2 I" f5 \7 N# K9 ?VHF Very High Frequency. . W* R% W k3 p1 b( T. wVHSIC 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 9 W6 y8 T7 i) \1 P* q+ bExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional / R. g2 \# v- ~6 ~circuitry and commercial components. Project also demonstrates VIRGIL, a ) v4 y% ~/ i Tgimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and 3 K& B0 p o" e, I* Hprecision-tracked with the ANTE processor. , g5 T2 k! v* V& K5 F8 H7 \VIM Vibration Isolation Module. ! T7 o1 Z f1 s' b) c: l0 A* rVINSON Encrypted Ultra High Frequency Communications System. 5 \+ r& ? |8 g# {5 _% ]6 CVIS Visible. " ?4 n# w7 a# h" Z2 H; L3 aVIS/UV Visible/Ultraviolet. 6 I# ~- j- g, n! p9 V! P0 Q5 Q4 K' nVisibility Range (or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can $ a* J) {. W" Z* k/ ?just be seen against the horizon’s sky in daylight. The visibility is related to the + {+ [4 D2 {9 b% R( L) E8 F+ Mclarity of the atmosphere ranging from 170 miles (280 kilometers) for an % ^% U) C+ E2 w4 W0 }: Uexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze r, X+ C2 E* J# w$ @or fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). Visible Electro- Optics Technologies/techniques employed by optical sensors in the visible portion of 3 Q% T, ?) B4 Q, k$ u# h+ V+ jthe wavelength spectrum. 9 M$ v- X9 W" H' Z/ ~VLAR Vertical Launch and Recovery (UAV JPO term). ( F/ `3 Z4 X( ]$ u9 SVLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). VOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. 0 @: E& m8 G k6 Q8 q) eVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. 3 o2 f' D, w' X4 I5 uMDA GLOSSARY, VER. 4.0 V 318 Vulcan UK bomber. 2 I$ g2 S; V& M( s8 {6 \2 rVV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. 1 N- Q ?6 t) D6 V5 X$ ]VVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W $ g* J9 Z7 K; @. p319 W/ With. 5 }' q. d3 k2 B8 P3 l3 K0 rw/o Without. W/TD Warning/Threat Detection. ' t( [+ Z+ r8 Z) C k; \WAA Wide Aperture Array. 2 x( ^9 ]5 m0 y$ y8 [/ \$ @# |WALEX Warfare Analysis Laboratory Exercise. ' _: r! C. w. aWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area 2 z! P6 a+ O8 w, A- h+ KMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). / ?6 G) f1 e& qWAP Wide Azimuth Probe. 3 w+ l- T* R4 D4 C; f' zWar Game A simulation, by whatever means, of a military operation involving two or more 7 r7 I' E- o9 o. ]$ Qopposing forces, using rules, data, and procedures designed to depict an actual " f; f$ c8 x9 z" Nor assumed real life situation. ' S! p9 s. C C: h sWargame 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 % e6 p6 b; E8 \# ]' Y& M4 ^assessments. . U* r! b% k) U8 pWarhead A weapon, usually thermonuclear, contained as the payload of a missile. 4 A8 N& g% D; b- B, jWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, # t, I1 @$ N. r7 ?! ~airframe, motor, or guidance section. 8 i3 O' ?- W; O( LWarhead Section A completely assembled warhead including appropriate skin sections and related $ B$ C+ } l Z/ o" Y# d0 g* Zcomponents. % Y: J: @$ e9 O/ R! ^ W5 c$ MWARM 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. ! o, k# @, J0 }' b3 x4 E0 T6 yWarning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve + G8 A) Y. \) hModes (WARM) Characteristics and operating procedures of sensor, communications, navigation 0 m: p: P' |5 `% X0 faids, threat recognition, weapons, and countermeasures systems that (1) will 6 U' e) E4 b8 H6 }- p4 D Qcontribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if ; S2 P7 T" i+ U" V4 `7 Jknown in advance. Wartime reserve modes are deliberately held in reserve for ) G* T2 i6 K6 Uwartime or emergency use and seldom, if ever, applied or intercepted prior to such use. : ?. _( B' ^% EWAS Wide Area Sensor. 2 `; Y2 B2 u: V. t* zWASP Wide-body Airborne Surveillance Platform. A modified DC-10. $ ~3 x) N8 p3 O3 d# f2 m) FMDA GLOSSARY, VER. 4.0 W 0 ?! [2 }# I. n# u$ y320 & A) F* K: z y" h5 t0 s+ K2 I& gWASHDC Washington, District of Columbia. / |* D. ^! |. u/ ^& E( S0 ^' {( HWastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. % A8 Q* Y) b3 D' Y& d* ZWatch Condition 2 T* `* J% J2 m% A+ U(WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. % ^) X) `3 t- \; ?% D1 W5 NWAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive . ?( Q5 |, e- P- I" ucycles of a periodic wave, along a line in the direction of propagation. ( I9 x( ]2 ~0 ^/ ^5 `9 |WB Wideband. WBM Weapons Battle Manager(s). 1 ?; z) V1 l1 C9 uWBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. 8 n# M+ @6 G6 |1 y$ O( O! a4 sWCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.