航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 ! N ~. ]* {+ {& g' e, Q" f! iTheater Missile Defense Council (TMDC) A consultative body for considering TMD family of systems planning and * L& V; E0 ]6 R* }. \programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of ; |6 g4 G3 X) M* Leach applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. # u; t+ U' }6 a- cTheater High - A" ?9 b; K: G# f2 _, u. aAltitude Area Defense System , Y: H8 E- o: B(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 1 l. W% K* l8 k/ G& l$ _# _4 f0 t* bgreater distances. Will provide an overlay or upper tier to point defenses such as 0 f+ a: P. Y( fPATRIOT. Theater Missile - @+ `) j' y9 O0 a4 B: m4 A(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. & h( a$ f8 u: q+ D$ yTheater Missile 8 \2 {: p5 [* `1 R3 vDefense (TMD) : l2 E9 V+ C$ ?( B8 H$ fOBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, 8 q, U! a. e! J4 X* n- q9 V/ jintermediate-range, or medium-range ballistic missiles. / E* a+ W- ]% g" t7 s6 Z3 DTheater Missile 5 y9 `4 A3 o5 d! _# hDefense Ground- Based Radar Q4 S& z, C, D* ^# r% l+ D" r(TMD-GBR) 8 M: c/ F; R5 PA ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. * y1 b, f. S& b7 K7 B9 [" x2 STheater Missile Defense Initiative (TMDI) An initiative under which all DoD theater and tactical missile defense activities are carried out. Section 231 of the National Defense Act for Fiscal Year 1993 : D1 e$ O: u% X$ B) Z5 L(Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. + y, t0 u2 B* N3 y; F) xThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of 3 Z4 G7 n/ B `, N# [thermal energy received per unit area at a specified distance is generally ' P, q; D3 H& W M( k$ E# {) @: Oexpressed in terms of calories per square centimeter. 6 e* B7 f( }& a' i/ vThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or + L6 N; [9 v! @+ i" n" Hreflected from the objects, which are imaged. % W0 t! M1 H- v; v, {Thermal Kill The destruction of a target by heating it, using directed energy, to the degree + w* H7 L9 p5 @that structural components fail. 7 m/ L- k3 V- I. u5 `4 _Thermal 6 s. M ~& o: s% C. d. k# pManagement Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. $ t; B/ S0 w8 A8 nThermal 4 \% ?; E$ W: pRadiation . g! h) D" ~$ ~) ~/ M- WElectromagnetic radiation emitted (in two pulses from a nuclear air burst) from the 0 q- H0 h& f& w/ e8 j- t# u4 Dfireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, emitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the 1 L, N0 P& b3 ~+ @absorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated - e p9 z: O! Nregion) which then emits thermal radiation. (See X-Rays.) ) A) i0 d5 y9 t$ j* O( kMDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; ; G8 q G3 V7 _% i' Uit is a region of more or less steadily increasing temperature with height, starting ' M1 I- U. E/ J/ I& G1 t, {at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. ) G9 o& G) y0 e) |3 g7 {, HThreat : `3 n9 }$ P% rCharacterization $ {9 F9 _$ Y6 p1 ~. T$ E- R9 wAn assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor (Threat Tube) A tube containing all the objects originating from launch sites and aimed at : M& A5 R( J7 D5 ?4 |' O: ^+ l; Ftargets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management ! h4 I4 S# m4 }computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. " K$ N* H4 @, H& rThreshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. Threshold ( n% l; B$ G7 j" ?" N3 aDefense : u3 Y! z( S0 s B" l) LA 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. % b, D, E4 I# N3 X$ \9 l0 ^Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. - s5 g/ F+ t! T0 h8 R9 y& T: V) h, JThrusted & L; T# Y6 |0 g% C" OReplicas (TREPS) ) F4 t' h* w% T3 f% AConical decoys equipped with a miniature rocket device. Generally used to / E+ s$ d" B8 C' L( f5 o lchange the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. 4 o4 K3 U( r; K& M5 PTIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. 2 @5 q0 I- N; Y(2) Tactical Information Broadcast System. / d i4 A( m" R4 e(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. 1 h: w8 ?; s! j: A n# I |+ M9 bTIDP 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 3 p' ]8 r# ~9 Z(e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. 6 I, W# S5 B; ~. T' t) l* u* z: eTIES Technology Integration Equipment System. 5 E- c3 h, Y7 z0 w1 hTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T # ]7 ~ ^" l- x300 & \8 i% N! @, I' O" k: Y& i+ STime-Phased - Y; N( h3 Q: K6 GForce and 0 ~4 v( i# l4 j$ ADeployment List # n, V! h6 a. l; D2 L; J) |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 " l, J1 |; ]3 s% B, H) a& [9 r' Cdebarkation or ocean area. . h8 H, t1 t; ^( @5 f7 D& N8 u+ eTime of Flight 0 E: h% K; l7 q: s, R! r(Max) + I, e# _; d1 [$ @$ y1 ^6 V4 mThe maximum time for a booster or vehicle to perform its function from time of launch. % R/ p6 U. y5 CTime on Station The time the sensor is in its operating position. % \ L" Z: V) ]) G9 Q, R9 x' lTime Sensitive 3 [+ K( K% d7 F2 t8 i% p9 MTargets . e D# {) s4 _Those target requiring immediate response because they pose (or will soon pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). 6 F, t0 _# Q. `' S. ETIN Theater Intelligence Networks. / X" |4 J6 t) M9 _TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) $ p5 [2 C: N4 U$ D+ g/ t; lTIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. 8 ~& _; B9 e& |; yTitan USICBM. # z/ C2 H: D: D9 M W( w e4 T! aTIU TIBS/Tactical Interface Unit. 8 U2 m) u- O/ R3 nTIWG Test Integration Working Group. (U.S. Army) TL Team Leader. : O0 P" P- R! d6 [1 g1 \) NTLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). " T$ c# K6 O. E' T! wTLDD Top Level Design Document. 9 W1 e% j$ S( U) d* nTLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army 9 C! m8 n6 p( G" d* z2 ]term). ' {3 B) k9 s' U! _: K' O/ wTMCC Test Monitor and Control Center. 2 q$ G; _ {1 _5 R* Q+ `TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. ; _6 G( G, S% E: Q4 UMDA GLOSSARY, VER. 4.0 T 301 TMD C : K+ b/ f* G; g( i4 V. J M3 " P! }" I, V g R& ], d# G8 |I Those assets that provide connectivity between and among Theater Ballistic ) z4 Q$ @# t1 |4 ?" ?! EMissile 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. ' f( S) Z! B/ STMD ITP TMD Integrated Test Plan. 1 ^* r1 Q# E3 D+ ] B- _TMDAS Theater Missile Defense Architecture Study. 6 l9 s% }5 b* B3 K5 q8 ZTMDC Theater Missile Defense Council. e5 [7 `# s; G6 N9 B+ _TMDE Test Measurement and Diagnostic Equipment (ILS term). . D4 S/ G2 E, S- { yTMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. ! d3 }0 U( S4 H; e) x& Y2 |TMMM TOMAHAWK Multi-Mission Missile. ) l% Q" H; [9 s2 a+ M5 e4 U/ B8 D) d+ gTMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. 7 Y" u+ Z N+ }! p/ n2 pTN (1) Terrestrial Network (C2E term). (2) Thermonuclear. , l& R: y" v# w, _* G; |$ QTNF Theater Nuclear Forces [Treaty term]. 0 {* b, y+ w8 [7 d% I) w* ^/ k% CTNT Trinitrotoluene. 2 f/ _* l( B* y/ n) }TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. ! }0 g% D' ~. ]9 @TOAM Tactical Air Operations Module. TOC Tactical Operations Center. TOE Table of Organization and Equipment. , r( g3 j8 J7 l$ D8 V& pTOF Time of Flight. 6 b# i& Y, y2 F8 `TOI Track of Interest. TOIA Task Order Impact Analysis. 4 e7 }( q/ n, O# _* \" {; a3 Q1 {# LTolerance The ability of a system to provide continuity of operation under various abnormal ; t N& b" L$ \$ G& C2 {# U$ G% sconditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 1 l) U& z! m: E# N' R4 x+ h, H302 TOMD Task Radar Management Details. TOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). ! H0 M* H7 ^- A+ oTOO Target of Opportunity. TOOL Target of Opportunity Launch. $ D$ a6 \- A lTOP Task Order Plan. Top-Down Pertaining to an approach that starts with the highest-level component of a hierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down Design 6 T$ Q+ d9 N5 ^ M1 C9 A2 KThe process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the desired level of detail is achieved. + `) I3 Z! _; F; p( _1 g+ wTop-Down 8 T3 N' ?) [/ a- sTesting \; `1 J/ X/ N! nThe process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. # M; M; V1 W- E qTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power ! A, v5 A# c& b1 ]8 mtechnology to U.S. BMD applications. - R+ Y9 A$ A6 qTOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target & {- _9 N% @# s9 VTotal Obligation Authority (TOA) + {# J1 Y5 T9 A( YA DoD financial term, which expresses the value of the direct program for a given fiscal year. ! J0 R, A3 A1 i! lTotal Quality " M! G; G3 q/ ZManagement (TQM) A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. # X' t, ~9 J8 ^( XTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. $ D. ?7 i4 u2 r# X! u# N6 {TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). 5 T9 ?, A+ `+ S3 J' G8 \TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T & d! W4 {3 C" W& ]* n- u303 * `2 I5 c; g: g0 a Y" }* L9 E- kTPEC THAAD Performance Evaluation Center. * N$ M& X. X" m0 `( I$ BTPEM Technology Program Element Manager (SDIO/MDA term). + U; }2 k7 f/ ?% v- MTPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. $ S) F8 ~2 I; S7 R' H/ ^TPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). % {8 Z: z6 l- a7 Y$ {TPO (1) Test Planning Organization. (2) THAAD Program Office % m* g% w. J; L5 _TPP Test Procedure Plan. * P' i8 ` e# w2 MTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. TPS Thermal Protection System. TPT Theater Planning Tool. ) h& f. S7 e' cTPWG 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 (upward) and allocation/flowdown path (downward) of requirements and 9 v* t+ r( L c/ V# Kconstraints. (2) The degree to which a relationship can be established between two or 4 S" `' f0 r7 m# T: K% ?7 Z- Zmore 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. $ T' O. d* W# I" Q. m0 {(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 instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the earth. Track - \ N0 w3 K8 ^' KAssessment The Track Assessment looks for anomalies in an object’s track data. An anomaly # w. U- ?1 b; J# q# T3 a4 W0 Yin the track may indicate a hit. / M& n/ z( b& a5 v& B2 ITrack, Birth to Death The maintenance of an associated track through all phases of flight (i.e., boost to reentry). " D* ]) x' m. z' ]+ Y5 r/ c0 ~! jTrack Correlation The combining of track information for identification purposes, using all available data. Track Extension This term usually applies to improvements in track estimates by use of new data. - N) U7 Y5 P2 F$ H F4 l: oIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS + i; t& A0 ]& U9 f& s6 Z+ Cmeasurements with irradiances with confidence of association; or some subset of % u1 d4 k# m9 o' ]7 mthe above. * {5 h/ B7 @# U9 l8 z0 N; ?& ?Track File-Track 1 K# {( K2 c$ W0 j* ?History A set of individual track reports on a particular object, which taken together * Y! h- g! p; S$ }. x1 b5 xproduce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a three-step process of data association, track initialization, and track improvement by filtering. Tracking The act of generating and maintaining a time history of an object's position and 2 A+ ^9 C+ U T( c# I$ v6 z7 N" |any other features of interest. * n; G( k7 z* PTracking and Pointing 8 g. A/ X5 e& g% L$ ~# LOnce a target is detected, it must be followed or “tracked”. When the target is successfully tracked, a weapon is “pointed” at the target. Tracking and pointing are frequently integrated operations. Tracking Range 1 @2 Q( Y! f7 n$ Z* `7 c1 |(Max) , v1 x5 W& ~* @& _" pThe maximum line of sight distance at which a sensor can maintain track of an $ s( R0 K5 {, u8 K: D0 zobject. 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 8 [& Q* x* |& s4 Q( kframes. & L4 S& A" u6 J e; OTrack Production Area 1 {5 n, l, B" B2 X v/ h/ OAn area in which tracks are produced by one radar station. Track Symbology Symbols used to display tracks on a data console or other display device. 8 O1 b/ H" `: s+ `, kTrack Telling The process of communicating air surveillance and tactical data information : J! U/ s' |% h# ]between command and control systems or between facilities within the systems. 3 M4 {8 k; }0 e e* ~Telling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. % R$ J1 c. }/ j* fTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. 2 e& Y" t x" w8 N& l! c9 CTraffic Capability Maximum The maximum number of objects per unit time which the sensor system can ; d; d' v, e0 z1 F2 dmaintain track files. . {7 b4 D' o0 E" a8 ?; RTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. : u7 a3 ]0 K2 S( h9 C! ]# w* N1 M) nTrain Threat geometry with objects placed in a line (string) along the velocity vector of reentry. 9 g3 R: [& V1 v" o, }Trajectory The curve described by an object moving through space. Trajectory ! M& q8 h& m q) Y9 J: Y7 W# T7 BHistories # l6 @" e: U1 U, Y# ITrajectory information on targets recorded over a period of time. s9 f1 ~: t* uTRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. 7 ]! l; T; L+ j. x. X; UMDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. TRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to , o: }+ T; I1 h" e' ~) zProduction ; q5 W& p6 y) ?4 C4 ^# a2 H) m1 K1 B W- PA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a # U I, j R4 s# ^4 [* D) f) C* b1 rprocess consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) ) C h% `' l& i$ c7 DTransmission Security (TRANSEC) 7 L4 F1 j# i1 g7 q4 nThat 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 ' X( M* P/ ~4 a7 n7 Z+ B6 Q7 `; Nencountered when passing from subsonic to supersonic speeds and vice versa. % Q- Q! [( Y0 ZTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. 0 o6 J7 i$ v) C& ^1 z9 N1 A1 ETRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. 9 [$ \% V; |/ n( bTraveling Wave 7 U- B8 Z H! l; `$ z( yTube (TWT) ! F' \, \/ G, l6 Z: D4 AAn 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 ; D6 W! w! e, |! ]( zstream to the wave; the tube is used as an amplifier or oscillator at frequencies in 6 J5 ?* L. s |, L2 X0 X* ?, s5 ^the microwave region. . _' Q5 s; p5 F( Z% Y* _Traverse (1) To turn a weapon to the right or left on its mount. " G0 ~6 a4 x4 X$ P7 ^/ J0 L(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. : Z4 w; D0 y/ d/ T v+ P9 T6 n% STraverse Level That vertical displacement above low-level air defense systems, expressed both " `: A$ ]2 E# c; O1 ^5 t0 b( X& Fas a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. . C$ ]2 @7 h4 _/ T( @TRD Technical Requirements Document. * s: w0 t Z: F, N4 D) i. K) |! UTRE Tactical Receive Equipment. TREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. # [& j4 c9 F1 \3 `6 ^- J' KTREM Total Radiation Environment Model. 4 {; T! \9 u9 ~% N7 {TREPS See Thrusted Replicas. 7 L! A/ W) u9 u! b# L' U$ G9 T( tTRESIM Tactical Receive Equipment Simulator. 9 Y- ~/ a. i% E Q/ b6 N" X O$ IMDA GLOSSARY, VER. 4.0 T 9 L2 d" E7 s# t3 c) i306 7 K% l/ v( T) l4 F' k/ R' N OTRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. 3 }$ I' X! Q1 l, S5 WTRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. ' }5 ~1 v, X7 e- e% lTRMP Test Resources Management Plan. ) `; W5 e; ]2 m5 O! D% OTRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains 0 O" L) ?5 f: J% yadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. " E/ g) c! y; K0 d+ ^3 aTROPO Tropospheric Scatter. 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 : S5 r, H4 _1 W; W4 }tropics. (See Stratosphere, Troposphere.) 7 }" k; S% z. Q1 E# [4 vTroposphere The region of the atmosphere, immediately above the earth's surface and up to ; u0 t2 i: G' qthe tropopause, in which the temperature falls fairly regularly with increasing 3 }9 q! C3 I5 qaltitude, clouds form, convection is active, and mixing is continuous and more or - X: k- C: g F2 Y! V, F1 jless complete. Tropospheric ; G3 L& |# R# g& X' ?% n! Y ^Scatter 2 [& h) i9 }' z; r( l$ k. TThe propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. 3 S6 z% v3 _1 T% W; z(3) Technology Readiness Program (pre-acquisition program status). 1 ?$ T6 G9 E7 B0 z(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. / ?7 P9 d& I) h0 CTRR Test Readiness Review. $ h3 p0 T5 @2 u: K! MTrusted 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. 1 s. Z* N; z7 x5 A& sTrusted Path A mechanism by which a person at a terminal can communicate directly with the * E& I* z9 F) r1 F7 b: o" F7 OTrusted Computing Base. This mechanism can only be activated by the person 9 m+ M6 @% h. |0 cof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. 2 D+ h/ K! b9 |9 J) v# z% D' X9 ]TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T " @( g/ q0 l, n# r6 p2 j307 - F& Z6 O/ T; y# h% ]+ _% O6 I vTSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. C( U& w2 s; r7 I. V4 RTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. 5 |, P& D. o9 d% ?0 pTSM TRADOC System Manager. ( o$ k) f8 R8 pTSMA Theater of Strategic Military Action. ' A1 N2 M1 b1 X7 p2 J4 |TSP Target Support Plan. ; F( _+ {5 h0 `9 OTSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. 5 q4 I, m& K$ n, mTSS Terminal Surveillance Sensor. 4 u' \: w6 x5 w7 ^4 uTSSAM Tri-Service Standoff Attack Missile. 4 Y6 O! a) C/ k- aTSWG Target Signature Working Group. - v Z& J4 K+ e/ k, GTT Total Time. TT&C Telemetry, Tracking and Command. ) Y2 n% L, g: C$ l% j* RTT&E Technical Test and Evaluation (Army). 9 H! j, M8 c' |5 Q: c [( g/ f/ VTTA Total Time Accounting. 5 c2 P: e7 {) e+ b* o7 vTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. . t% N# ^- I k! }! ]TTD&D Test Technology Development and Demonstration. A portion of the CTEIP & T, H% W) _6 Z3 kprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. 0 y1 A5 _' S9 k- }TTEL Tools and Test Equipment List (ILS term). 7 v0 S3 ]0 X' \9 c% J2 PTTL Transistor-to-Transistor Logic. 6 C. L( q: _1 M/ [7 ?1 L6 J* _TTP Tactics, Techniques, and Procedures. 0 ]" h& G& Z/ S, F( J7 rTTSARB Technology Transfer and Security Assistance Review Board. : A, L& ~0 d, o1 [2 r* o6 g! wTTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 308 $ K e- X5 u+ h9 z. WTTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. 4 H- U; j1 b" S+ xTV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. 6 S, G/ ~5 f0 l k; @, vTVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. 4 ]- w; b5 W3 t: TTW Tactical Warning. 0 l) f7 V: @* A* X9 z7 Q. TTW/AA See Tactical Warning/Attack Assessment. + L! |! H. J b9 {TW/SD Tactical Warning and Space Defense. " ?* \6 t8 J* A t9 j+ pTWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. 9 G$ ]5 |" [8 M. e6 _0 @# \/ f( ITWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 6 v5 A9 @( m; s. U" X4 k. V7 xTY Then Year (PPBS term). TY$M Then Year Dollars Millions. . w6 z* M; F! B8 V0 @+ g* f& eType A - System Specification States all necessary requirements in terms of performance, including test : U8 q" `4 \/ g1 p5 v6 w2 wprovisions to assure that all requirements are achieved. Essential physical l$ F3 E8 E, e- m6 I' aconstraints are included. Type A specifications state the technical and mission / o/ `+ a1 B8 n% O& zrequirements of the system as an entity. Type B - 9 P5 y6 Q0 b+ e4 V8 g( A7 C6 JDevelopment Specification States all necessary requirements in terms of performance. Essential physical 2 S/ ^2 h6 P: B; p) W. K2 nconstraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item 2 A1 c4 n7 u; t/ {8 T' |3 Hfunctional characteristics and the tests required to demonstrate achievement of those characteristics. Type C - Product * {- j, \/ Y1 v, t, C% u hSpecification - A6 u- n0 e4 @: s6 e+ IProduct specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of 9 g# K5 K4 l5 U8 N4 Z& rprimarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 4 X4 D; R: Z9 m* l7 O6 mitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a 0 c4 ?. z7 A' f4 t6 z8 [set of characteristics, and associating the characteristics with a specific class of # Z3 {7 g- k! Y- _# J/ {objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 U Uranium. $ M. e& y: Z; r( q# @U&S Unified and Specified [commands] (pre-1996 term). * x" ]! l# ^9 l6 S" M5 c7 E6 tU.K (UK) United Kingdom. " W C$ U9 H0 g4 vU.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. ?8 S, }& g* y- W: ^UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. UAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. * r% p8 }+ j' i9 WUCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating + [, j+ Y/ F( `9 ~: G8 X7 J9 m) @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 Program Introduction (PI) (also called the Program Introduction Document (PID)), 0 k0 f8 P' L; m5 N9 |& Z; C# I2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. 9 m# i7 z5 O( Y& X' kUEME Unified Electro-Magnetic Effects. 1 N( N9 s a5 m; \0 o2 Z8 M$ r: ?/ @, WUEWR Upgrade Early Warning Radar. {8 l) v6 h: M4 @5 m5 ?UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. % _' C9 |% A) W6 k: aMDA GLOSSARY, VER. 4.0 U : K9 C6 K4 L5 _' x/ } U310 ( w0 k/ T2 \8 q. T. y, rUFG User Focus Group. 4 I& x* _; C3 }4 q/ B A, A5 KUFO UHF Follow-On [Satellite Communications System]. ! g) N1 w+ \( y! L' m' qUFP Unit Flyaway Price. UGF Underground Facility. 7 R, K! ?) {. F# i/ aUGS Unattended Ground Sensors. UGT Under Ground Test. * X7 w6 j( `6 r1 _9 }UHF Ultra High Frequency. UIC Unit Identification Code. UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. UKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. 4 V7 ?1 p5 L7 T, {ULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. 9 M) V) ^% [8 t* T* \4 ?2 fULSA Ultra Low Sidebobe Antenna. * r+ v" m* f6 o/ z0 n4 k3 g B8 ZULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). 9 x8 N' k' v) J% S7 @ K, }UMD Unit Manning Document. $ h8 P" m1 V6 qUMMIPS Uniform Material Movement and Issue Priority System (ILS term). 5 I6 P/ K$ c/ ~, f5 Z* S nUNAAF Unified Action Armed Forces. 8 ~- M( D. i5 e ?UNC United Nations Command. ! T! B8 G: v9 S9 X2 R- l& XUnconventional 5 ?4 {* z! N0 N7 MWarfare 5 \) q+ S% z) JA 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, % @+ X! z5 Z: z9 Zcovert, or clandestine nature. $ u& a5 U: Z# v6 |4 N' F# WUnified Action v; m' n5 W* Y% b6 ZArmed Forces 0 U0 f4 _! _, T; kA 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. ( \- U. D' N9 b* Q0 }" c& s5 QUnified Command A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary & y% B8 N5 ?) b& V3 [of Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 UNISYS UNISYS Corporation. United States Army Space Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army 8 n/ W1 p2 r/ Zelements of the SDS system. Located in Colorado Springs, CO. ( g5 s$ [2 t( C2 c4 B4 s/ d$ EUnited States & n ?7 H C: ~$ Y8 QSpace Command (USSPACECOM) * H' T* i$ |) D& ]( S' @The unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States 4 {* d5 ~7 C# w0 r3 L* TStrategic : q2 L" I, i9 _$ s* W: fCommand 7 s0 V: |# n3 C j8 B(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic + e/ `% Y( J' y/ b" x4 D# N5 vmissile offensive combat strikes. Located at Offutt AFB, NE. United States 8 r6 w' J9 q R) tTransportation " D. P1 F) A- \Command (USTRANSCOM) The DoD unified command responsible for providing air, land, and sea 6 t+ R& n" x' q( D8 X; {9 Gtransportation for the Department of Defense, both in time of peace and time of ( e+ |. }; D5 O" t3 v7 qwar. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as " q5 j* h- b% rneeded to support the deployment, employment, and sustainment of U.S. forces on a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. Unresolved 0 b2 c6 L" O, y4 d/ X3 ZObjects ( q5 l/ x; ~ G% pObjects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. & L" T" p. `3 u7 e8 ]" Q3 QUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. 4 c5 u3 ^, c# x8 }# x; ]6 q* oUOC Usable on Code (ILS term). 9 J1 c( p& _3 Q" B# H! }4 JUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. ( _; e) k: x. a3 W" EUPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). 5 s; x: V: e. S0 w' H8 e( j$ w# M& LURIP University Research Initiative Support Program. ( Z! d7 G( N, B( J; xURL Uniform Resource Locator (internet protocol term). ) k; ]: j1 z4 h2 G- kURT Upgraded RTD. % p: U+ F3 g. _) JUS/UK United States/United Kingdom. 7 c1 [, H' O# c. J3 J" y+ {* VUSA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. , q4 {- g2 L( S) W+ F4 t$ I/ H4 L# QUSAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U 312 USACE United States Army Corps of Engineers. 9 f4 i% _- |$ z7 p: LUSACOM United States Atlantic Command, Norfolk, VA. % I& X% ]: p. s* U# tUSAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. 1 O5 S5 t( N4 a' b+ w4 CUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. 4 o" ~+ J/ T) F. @% W5 b# i0 C# hUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. # v+ n% E ^' v+ a- B3 v* A) AUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. ) Z4 @ y+ [8 x- EUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. 4 Q1 d9 g0 }. ]- QUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. 0 d& \: k# C, RUSAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. ; J: d4 W1 R9 SUSARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. ) L* R A2 _' W+ q, o% {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. & C) C5 L% S9 y! ]2 @: bUSATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. * x# d2 q: t5 V E6 \, @: T' gUSC U.S. Code. USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 7 I& L% a1 T: v XUSCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. $ y4 }6 S3 G v' ^5 ~USCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. 1 D7 `( a. U. l, Y$ CUSCINCPAC Commander-in-Chief, U.S. Pacific Command. 2 o0 ~8 n. p) i! tUSCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. , H6 I" L3 Z# E$ ^4 hUSCS U.S. Customs Services. ( v( S. |) d( V& ?8 K) tUSD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). 9 ]7 F! u( f/ M* JUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. ; M) F5 j. k, @& hUSD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. , f' M* z. S$ Z3 M* n1 @7 UUSDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. 7 C7 Z) \- {& J; o* ^: S- c2 eUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine (hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational Evaluation ( a# l+ O* i" v( {2 i1 M2 K0 R% VSystem (UOES) * t9 {* `! U0 I7 J6 Z' n$ x0 F$ tPrototypical system developed and tested as part of the early phases of the 0 `1 l d4 f' D7 ^; K$ Odevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) 4 i6 @+ q& F! O/ f/ b- Q6 {$ H1 @$ lcontingency defense capability should the need arise prior to completion of the normal acquisition cycle. , y3 E# U6 |. I2 ^7 E( |USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. 9 Q& S- J8 Z& z" B% E% AUSFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U $ I" r; ~; O: S" n% s% ^0 y( q314 ; R; W @% ]+ d. ?6 I8 [) Y: IUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. ; }) h& x( O/ {: o; r# G2 iUSMAR- * q0 {& w2 v2 H* h0 G; }0 N; WFORCENT & C. Z3 h! t$ _. z% yU.S. Marine Component, U.S. Central Command. : E" v. Y( n; m7 F- w" AUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. 2 n1 V/ z8 g+ R3 R/ o: B3 FUSMCR United States Marine Corps Reserve. " ^' F, V' Q: ^, N( f/ bUSMILREP U.S. Military Representative. USN United States Navy. + E' C, T3 Q1 L: `& L- }USNAVCENT U.S. Naval Forces, U.S. Central Command. 4 G# a N! }* Z0 W* w$ {+ ^6 }USNAVEUR U.S. Naval Forces, U.S. European Command. 2 Q& L* f& v4 R/ [* kUSNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. 6 g$ F+ ]8 F: Y! h& \7 t8 Y0 K# FUSNPGS U.S. Naval Post-Graduate School. % Y( I( R+ q7 b. P8 W) wUSPACAF U.S. Air Forces, U.S. Pacific Command. ' O0 R- \3 Q, O. lUSPACFLT US Pacific Fleet. 6 B4 j. v/ C' o# Q* PUSPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. # f( U$ R5 ^! o, U, x! S, t0 hUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. " s$ t% \ \( ~) j6 g! ]USSPACECOM See United States Space Command. 2 @1 w H8 W k& M4 d% H# gUSSS United States Secret Service. ' r/ c7 p8 B3 \$ aUSSTRATCOM See United States Strategic Command. ! q! K0 }: S6 T( H, @% w. mUSTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. % K6 r- e! g0 `UTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 3 S$ P, P0 A6 ?! U315 , x5 f. x$ K! B8 r; I& OUTM Universal Transverse Mercator. 8 Z u1 x8 h e0 d) L( F, UUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. UV Electro- Optics 2 Q% U) m- `# w: QTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). P! j! e* e4 B/ ~/ mUVPI Ultraviolet Plume Instrument. ; Z* G3 H" i* n* ^* L, q; KUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 0 E" `% U! v4 E" l% `, u) L316 V Volt. s/ e7 L, w+ t5 cV&H Vulnerability and Hardening. V&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. ! z4 H2 Z3 ^0 m0 b# H# V2 _+ }VAFB Vandenberg Air Force Base, CA. 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. VAMOSC Visibility and Management of O&S Costs. ' b- {$ r/ x7 PVAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases 0 w4 }. D! X( q. q2 @; B' v+ swith the distance from ground zero; or, in damage assessment, a mathematical factor introduced to average the effects of orientation, minor shielding, and 3 a3 t. E% o0 u6 D- K/ Xuncertainty of target response to the effects considered. : ~9 I( N/ ^2 L! }0 `" N6 A2 zVBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. ; u1 r5 e, n n JVCRM Verification Cross Reference Matrix. 0 r* b9 |8 s8 q0 CVCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. 4 \" g" z; a4 x6 W3 AVDU Visual Display Unit. - l, A6 _* X$ j* EVE Value Engineering. : \( `. N) e# x" b& cVECP Value Engineering Change Proposal. - L) W4 P* Y3 g- h" O8 T( fVerification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, 1 ~& i. [8 c; W" Zcalculations, logic, and interactions of the system under evaluation. 2 C: z3 H9 ?0 c# ^8 Z: K( Z(2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified ) {3 p" }4 t. v7 zrequirements. : _! D% ]1 R$ G4 g2 c! |VESA Video Electronics Standards Association. VFR Visual Flight Rules. + d7 [4 u3 O5 U& i+ V% i! x: DVGA Video Graphics Array (Telecomm/Computer term). + c4 r# R' q/ AVHF Very High Frequency. # |+ L, a" H" c7 \ hVHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 VIDS Vehicle Integrated Defense Software (USA term). 0 W! B6 k+ ^- L( p/ E4 R3 `VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 7 Z0 d" Y3 Z- zOperation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a # Z: P8 \. {2 S4 T2 J y# P. S( v' }gimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and , P7 F4 `6 C; O0 t. N2 l4 Cprecision-tracked with the ANTE processor. VIM Vibration Isolation Module. ) a3 l% q. T. I% H, y. o+ iVINSON Encrypted Ultra High Frequency Communications System. $ m7 Z& Z. I+ t) mVIS Visible. * X6 q$ _! I. N- h$ JVIS/UV Visible/Ultraviolet. # S0 f, H. p1 L# I, }Visibility Range (or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can just be seen against the horizon’s sky in daylight. The visibility is related to the clarity of the atmosphere ranging from 170 miles (280 kilometers) for an 1 n) I5 `$ w$ g: T+ Zexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze 6 t- @- E" P/ E5 Mor fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). + }" I% R% n! p BVisible Electro- , m+ q9 A1 A I# J3 E3 f: OOptics + V; S& ^( s# `- \Technologies/techniques employed by optical sensors in the visible portion of 7 I8 |: E/ K A, G( w" cthe wavelength spectrum. ! n3 n% a8 h. r7 \! h) EVLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. # _, L7 N& H6 S) zVLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. 3 w' D4 f$ V% \) A7 tVLWIR 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]. 2 U0 S1 z- P9 {2 P3 nVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V ( n, Z* F4 A7 y- K8 |3 `9 C- V318 6 m9 B' Y8 z5 Y- q; z4 }Vulcan UK bomber. VV&A Verification, Validation, and Accreditation. / G" m- G! e" O5 K9 |/ w) w) C* B* bVVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. 3 q& ?3 T. d# H6 w" `5 Q+ GMDA GLOSSARY, VER. 4.0 W 319 j, }3 H1 Q( }9 T( cW/ With. * H+ \( Y' ^. m% k) h' c+ {w/o Without. W/TD Warning/Threat Detection. WAA Wide Aperture Array. - l' f* Z; P- H* i6 yWALEX 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. . M1 {6 _) \: @( _: iWar Game A simulation, by whatever means, of a military operation involving two or more opposing forces, using rules, data, and procedures designed to depict an actual ) b; S- h: [, f: s6 _or assumed real life situation. + h7 \# [$ h PWargame 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, ! y* E4 `: V, y% Z& `# M, e' fvalidation and accreditation, and support CinC/Allied wargames and assessments. + `2 u9 e! U# R2 d/ z5 Y- b+ uWarhead 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. Warhead Section A completely assembled warhead including appropriate skin sections and related components. WARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). ! I) N, j1 V3 p, M- GWARSIM 2000 Warfighter Simulation 2000 (US Army term). 6 E; T% \5 X5 S7 m" iWartime Reserve Modes (WARM) ; E9 o4 B, U2 k! Z7 s3 sCharacteristics and operating procedures of sensor, communications, navigation $ U! H4 j( z0 b; u4 p U0 aaids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing " m! Y- [# x* Fcommanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for . b9 L) D: ~0 s3 w. Bwartime or emergency use and seldom, if ever, applied or intercepted prior to such use. WAS Wide Area Sensor. + T% y# S$ Z# QWASP Wide-body Airborne Surveillance Platform. A modified DC-10. 4 r) B4 k1 i M; F; tMDA GLOSSARY, VER. 4.0 W 320 8 a1 a# B: T2 \WASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective 1 Z3 |0 Q! a5 e. C, Iin contributing to the defeat of the offense. Watch Condition + m6 Z6 a* j! W7 _* T(WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs 6 J( G, @+ x3 ^8 uto watchfulness without raising DEFCON. WATS Wide Area Telephone System. 1 G) B& ^3 B* N( F. z2 t0 VWAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive " n) q: ~5 Y. i5 pcycles of a periodic wave, along a line in the direction of propagation. / s: z. o! j& m- N7 R! I: U/ NWB Wideband. % Y4 }& f) h6 b( I6 C/ \WBM Weapons Battle Manager(s). , E q, g: o$ wWBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. / {% H' D$ Q$ Z' JWCS Weapons Control System. . R% ~8 ^5 K% _& T8 T: S# RWDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be , p& q i* _9 \$ Jlaunched.