航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T % b* g6 R/ b8 \! p5 i0 p7 p! B298 4 [, v; W @$ ]& {Theater Missile & X% }) c; o9 R' fDefense Council ) _% d; O% A3 W/ o% J# o(TMDC) A consultative body for considering TMD family of systems planning and 1 d1 _" P3 d7 J2 x# P1 I% c# lprogramming issues; chaired by an Assistant to the MDA Deputy for 5 ~- y+ H4 o2 K7 RAcquisition/TMD, membership includes MDA TMD Directors, representatives of : }1 \* [" ]8 Aeach applicable Service Program Executive Officer, and TMD Executive Agents 0 ~" }6 ^; M* Gand Program Managers. / l9 o* B' w* x8 jTheater High ) Z7 o8 g5 ~$ U: cAltitude Area Defense System (THAAD) 0 v3 B# V" g* Y& x* N2 Y8 G2 |A ground-based, air transportable interceptor system that will provide wide area + ^. w0 a2 V$ Ydefense capability by intercepting longer-range missiles at higher altitudes and at % z2 x2 `/ _# i9 J5 p* G$ |greater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. ) H8 s- F0 V( l6 m- u( h oTheater Missile (TM) A theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable ) C" Q6 q+ K( r; P8 b/ H) |of attacking targets in a theater. ) u) d* v' N) d8 [Theater Missile . s# d* ]+ u; d z& ADefense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. 1 K: u% M. f8 y, n( }3 ]% j s0 ETheater Missile Defense Ground- Based Radar (TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. Theater Missile Defense Initiative (TMDI) ! s, h U4 z* k w0 W. GAn initiative under which all DoD theater and tactical missile defense activities are 2 `" T5 D& f" V/ J, m2 hcarried out. Section 231 of the National Defense Act for Fiscal Year 1993 3 `5 Q( U9 f4 x3 X" @( C) r(Public Law 102–484) directed establishment of a TMDI office within the DoD. & e* d1 o, Y( s: T) w1 Q. wTHEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally & k7 F: t; e+ s6 u1 {7 i) A( a+ A; Cexpressed in terms of calories per square centimeter. 5 B, E3 y" P! ~% z+ AThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. 9 ^1 [/ V2 X5 k' HThermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. 3 ^% W ?% a/ Y+ a6 B+ zThermal 9 R; q. P3 V; d8 |7 W/ O/ \Management Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. Thermal Radiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of : J. f# H7 s) Y8 ]6 bultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, 4 c5 c ]/ t; y, R" X/ t2 ]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 + X0 ?# f+ [+ i, Q( }, o$ M8 h1 e. iabsorption of this radiation by the ambient medium, accompanied by an increase / Y" a, W J4 _in temperature, which results in the formation of the fireball (or other heated ; O) ], ?+ A" L. `9 ?. ]region) which then emits thermal radiation. (See X-Rays.) + a1 r3 o. X7 t5 i6 j& K: Y1 B) eMDA GLOSSARY, VER. 4.0 T 2 @$ F, |! }( Y Y2 C299 6 H# f9 j- Z: \, z( s4 U: CThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; it is a region of more or less steadily increasing temperature with height, starting $ t P, Z( X9 U/ v( T+ hat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. + B6 Y, j! I/ u7 `Threat Characterization - b: L2 w, p: c( S( ^: d/ v* m1 hAn assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor ! p' n' `+ Q$ X3 w X/ @% v# Y(Threat Tube) A tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management 5 l6 u& M6 T4 J) A! kcomputation. * H U% w7 y5 j* [5 t9 [, F) OThreat Scenario A hypothetical example of the employment of threat systems against ballistic + y% m( g. c5 O f$ v2 ?" H: ~! M' {missile defenses for the purpose of analysis and evaluation of those defensive ' a) @4 ^, J4 D- esystems and architectures. ( ~2 V' U$ [- l7 C" c. w9 B3 Q8 hThreshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. Threshold Defense A defense strategy that concedes that the target can be destroyed at a price ( C$ f+ ?! J3 `that is not prohibitive, but the presence of the defense is thought to require the # ?* u6 k$ Z3 ^8 Yoffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. 0 z7 F5 A' j3 s# U2 U: E9 c. MThrusted Replicas (TREPS) * b# v" G0 Q% [* [* v' yConical decoys equipped with a miniature rocket device. Generally used to 4 g& O& q$ F% I7 Z% [, Z( ]change the decoy’s optical signature to resemble that of an RV in the reentry / `: M( U6 Z4 Yphase. ; S; N6 Z u5 R0 p' TTI (1) Technical Instruction. (2) Technology Insertion. : r3 {0 I" _4 ]8 _) F% _TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. * D3 ]* B6 {# w o& g2 f(3) Theater Intelligence Broadcast System. " ]' N* o9 C1 Z7 X- \TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. % f! P F0 y! ^& O* d' y% rTIDP Technical Interface Design Plan. ) ~8 T: P$ [3 Q. M! zTIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. 2 j9 g" g! T7 ^) z/ b! o0 R/ N# MTier An integrated set of SDS elements that address a particular phase of the threat 4 ?& ~ A5 b. {) e$ o2 i2 D# ?1 z(e.g., boost phase). & `' `6 S$ D# c, G0 p, \* w$ uTiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. ! q0 h* l! V9 r5 L: {9 b% X8 sTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. 4 v* d0 D2 }( H8 a4 ]/ vTIM Technical Interchange Meeting. 4 d5 t' D5 Z9 c& {8 i/ A4 X9 iMDA GLOSSARY, VER. 4.0 T 300 0 B' }% s' r3 f; `Time-Phased ) v2 |$ Z3 Y/ B0 gForce and Deployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual units required to support the operation plan and indicates origin and ports of debarkation or ocean area. 6 q: ~% C) m! T" [; CTime of Flight 2 g/ D4 z% ?+ p: A0 r(Max) The maximum time for a booster or vehicle to perform its function from time of launch. 4 v/ A2 c2 ?- V- Q: a, F0 d/ sTime on Station The time the sensor is in its operating position. Time Sensitive Targets 1 Q+ J+ u- W2 j4 e2 V5 UThose target requiring immediate response because they pose (or will soon - ]$ ~6 v! B3 N. B; n# _, dpose) a clear and present danger to friendly forces or are highly lucrative, ( U/ }, }, \2 M' @fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. TIP TOPAZ International Program. . L- l- ], M: F, V; D- ^TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar ; q9 N! v+ [. n9 H( nTerminal (GBRT).) , y$ {0 q* o0 R# l( |4 S. b. FTIRS Telemetry, Instrumentation and Range Safety ; A2 E* T9 B/ d7 d9 n- HTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. & R) c* m& ~0 a9 ]0 K1 ]* F+ @5 c& D; s' DTIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) ) p4 b, N0 r3 p8 {TL Team Leader. " [3 T9 z) G* ~% e, |3 eTLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). 8 k+ H) K6 o$ H* ZTLDD Top Level Design Document. 6 Y" p& t2 U7 {. e% GTLV Target Launch Vehicle. TLX Teletype. + ?) V+ \( T! Q& v" _TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). ! r0 I6 y0 s: yTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. ; ?/ Z( n1 F8 ?/ qTMD C2 Theater Missile Defense Command and Control. 0 K- m" d- R2 r4 F( U' hMDA GLOSSARY, VER. 4.0 T 0 j, ?: }' R: r: }301 6 l6 L4 W8 [. pTMD C z3 p5 o0 g4 U4 C. x1 Y- [3 I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). . `5 F3 B, p W( b$ sTMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. + W" v' }0 M1 Z5 yTMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. 4 f q2 }1 g$ U4 a/ m. GTNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. TOAM Tactical Air Operations Module. & {9 C" B1 q% Q# q1 R6 y/ PTOC Tactical Operations Center. 6 O. @; F' b% [" VTOE Table of Organization and Equipment. ; c4 C2 \0 C$ S; `TOF Time of Flight. / Y* M5 Q- {8 S& F [% y+ `TOI Track of Interest. TOIA Task Order Impact Analysis. 9 x: |; o) L2 _/ d: J. uTolerance The ability of a system to provide continuity of operation under various abnormal 1 T% H) B9 j, p! s2 i# d3 u2 }conditions. 8 X/ ^/ ~5 b: y9 R8 [TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 6 ]4 ], b! J) Z6 q( G3 JTOMD Task Radar Management Details. TOMP Task Order Management Plan. + `: i. f" [7 B$ V) O9 oTOMS Total Ozone Mapping Spectrometer (NASA term). 6 p/ f* T0 p! C* fTOO Target of Opportunity. TOOL Target of Opportunity Launch. TOP Task Order Plan. 5 \- K/ q7 |7 QTop-Down Pertaining to an approach that starts with the highest-level component of a % b! a# o' s% I# Dhierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. " J5 w# l" o: p( J& LTop-Down Design $ @& N5 A; n+ M$ b# m: WThe 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. * I* d) C f0 i; J. ATop-Down Testing The process of checking out hierarchically organized programs, progressively, ; q; v, x/ n8 |7 yfrom top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power 4 p9 ^# h, r% [% ?; }technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target & r4 h& j- B$ [8 `Total Obligation , a! o4 l4 Y/ B1 g0 a0 v% m, MAuthority (TOA) * H1 H' E+ z) K% b. m g ^; s+ _A DoD financial term, which expresses the value of the direct program for a given fiscal year. Total Quality Management / S; k2 E E% ?& W" Z(TQM) A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. 5 F+ R* e1 R Z+ W) [TOTS Target Oriented Tracking System " V. e% t( s2 M+ J# NTOVS TRIOS Operational Vertical Sounder. 1 F3 Y3 |. D' }$ |# O6 g3 cToxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. , Z/ x; M8 M( yTPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T ; M& [, \& g; {7 D- b303 5 }0 p; l# M0 G7 @: @: iTPEC THAAD Performance Evaluation Center. . Y% w0 W4 s* W. c! C% q; h+ {TPEM Technology Program Element Manager (SDIO/MDA term). , h; R. Y+ p/ J `5 w: @, d eTPFDD Time-Phased Force Deployment Data. 3 n! o1 f0 ^9 x- }& d, }TPFDDL Time-Phased Force Deployment Data List. * k7 l$ Y) j1 J" {* f: CTPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. 1 W3 n3 u( N: Y" p* {3 R2 nTPMT Total Preventative Maintenance Time (ILS term). " @" M" w6 I# }TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. : {: m0 C% f# R8 [1 ^TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. 3 i% g1 ]) W2 k5 |TPS Thermal Protection System. $ A( p& m* S2 N+ X; i5 M" k1 ITPT Theater Planning Tool. . O! h% K' q2 w: M7 F* p% G1 v1 ATPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. & R* M( [! [8 a4 R& d! rTraceability (1) The characteristic of software systems or designs or architectures or 7 y& B( U& A3 S7 `( jdomain models that identifies and documents the derivation path : b: a U- x" v% e6 L0 Q0 Z(upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or - I# x0 |" W3 U3 ^more products having a predecessor-successor or master-subordinate 2 J% r7 z3 ?5 nrelationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. : z% C4 s0 G. g& k. W+ ](2) To display or record the successive positions of a moving object. & ]( i7 {1 Z* l& J8 i6 X1 q(3) To lock onto a point of radiation and obtain guidance from. 6 F9 f* b2 z8 y2 _9 ] K(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. # ~& e$ M2 i1 F5 A) x: F7 hTrack Assessment The Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. Track, Birth to ' [/ Q6 d& G7 S; YDeath 5 K/ b! b1 t8 j7 T A2 aThe maintenance of an associated track through all phases of flight (i.e., boost to reentry). * v& B3 p1 r$ t7 |Track Correlation The combining of track information for identification purposes, using all available data. " Z/ F; b% q9 {+ NTrack Extension This term usually applies to improvements in track estimates by use of new data. 2 G$ m8 \# v- o. |6 n+ g7 @+ lIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). ; e' Y4 M/ Q; }MDA GLOSSARY, VER. 4.0 T 304 7 ~! I6 Y6 z8 b: x2 g4 E1 LTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS 4 U3 A4 e- A+ I' o' t; Jmeasurements with irradiances with confidence of association; or some subset of the above. : K* n4 n g: ?0 f0 a( r cTrack File-Track History 9 G% g5 B( \ v) ] ~A set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. ) {: f4 J$ a/ I0 p ^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 : d R9 x5 P9 Yby filtering. Tracking The act of generating and maintaining a time history of an object's position and ( N; _$ U" x! x5 m! i4 q8 Hany other features of interest. Tracking and Pointing Once a target is detected, it must be followed or “tracked”. When the target is # u( \8 y) l0 Osuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing ' `2 X! N' S3 X- E1 Lare frequently integrated operations. Tracking Range 1 |9 x6 g9 l6 }2 Q' J. O(Max) The maximum line of sight distance at which a sensor can maintain track of an 5 e1 N* {7 _1 M6 s$ `0 Robject. * L4 x1 e: ]* JTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector % j3 e8 F% f/ L9 t7 }of an object. The process typically requires observation from a number of frames. ; z: b+ J# N6 t$ ]Track Production " m$ t$ P' F- h6 WArea 1 t# e3 F* r/ D% k) ^' d9 sAn area in which tracks are produced by one radar station. 6 k$ k- d( @9 tTrack Symbology Symbols used to display tracks on a data console or other display device. Track Telling The process of communicating air surveillance and tactical data information between command and control systems or between facilities within the systems. ' A& u( P9 | t1 R/ ~Telling may be classified into the following types: back tell; cross tell; forward tell; 7 k/ @7 Q$ [) slateral tell; overlap tell; and relateral tell. 7 g" x+ D% F+ E# p( b0 ]0 nTRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability 7 z3 g& F* v4 j8 l: \Maximum . `9 j! q) O, |/ TThe maximum number of objects per unit time which the sensor system can maintain track files. + b" g9 x: K& L1 |Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high . S' ^" M$ |& \2 ^endoatmosphere. & c+ H% {% ^4 H% W$ YTrain 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 1 }, p( r6 M9 oTrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T 2 k$ O6 w n3 L7 f305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. ( n6 H4 K: X0 M) g# vTRANSEC Transmission Security. 1 R% a% W% l* }. n+ N- p; `Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to Production ) O* @7 D7 N% _9 f4 A) ^+ hA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission 7 l3 |9 \. z( K3 k4 D1 g \Security (TRANSEC) That component of security, which results from all measures, designed to protect 8 _, H6 [% f3 u c! z+ Xcommunications transmissions from interception and traffic analysis. (See , E* S5 L e6 G) l' L1 T0 @COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative , {$ T5 F8 ~& {! _( espeed of the fluid is subsonic in some places and supersonic in others. This is ) Q6 T" f/ n, M: x/ iencountered when passing from subsonic to supersonic speeds and vice versa. ) B! N: D l! U* [* S0 f7 Q xTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. 3 [7 L! m# G p1 d9 d [Traveling Wave Tube (TWT) 4 X+ D7 f* H3 Q% IAn electronic tube in which a stream of electrons interact continuously or 7 P# q" ~% b6 }. h! orepeatedly 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 / @3 r) k- O1 M- M [the microwave region. ' W4 s( G* G% ?* w( B9 bTraverse (1) To turn a weapon to the right or left on its mount. 3 f% v5 v$ c5 s# |9 K4 G& d0 L(2) A method of surveying in which lengths and directions of lines between - b4 k7 {! k! W7 ]9 qpoints 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 as a height and altitude, at which aircraft can cross the area. . `# r3 J- _# v/ s, i9 r1 f6 h; KTRB Tactical Review Board. $ t5 Y- R. L: }5 {" GTRD Technical Requirements Document. # |+ w# r$ [$ ~( a/ P6 }TRE Tactical Receive Equipment. - d) Y7 {$ ^2 I3 B4 s' ~TREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. 6 @' t' b! |3 N; ^" S8 FTRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 306 3 l3 [4 o5 M4 kTRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. " \5 e$ I+ v3 O+ c2 M! K" z8 {TRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). + ^' g6 F% Q9 fTRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP Test Resources Management Plan. # O4 p7 J+ g3 t& j# _* X L5 |TRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains 9 X* P7 C5 l$ ~+ O0 ^. B. i6 madditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission $ ]$ S8 i2 p* P$ V2 D% V' Nperformance. TROPO 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 7 j! H( v% w: Y, Z- E6 vtropics. (See Stratosphere, Troposphere.) % x! O: v+ D0 ^: X# |Troposphere The region of the atmosphere, immediately above the earth's surface and up to 3 r5 _# |& Z( a; K) c' q4 Fthe tropopause, in which the temperature falls fairly regularly with increasing 3 Z* J t3 H0 e4 Daltitude, clouds form, convection is active, and mixing is continuous and more or + Z" Z+ ~, O) ?# |. \( N: }less complete. 8 b+ U* a6 D; r4 i9 z+ F5 T! ZTropospheric Scatter The propagation of electromagnetic waves by scattering as a result of 0 V- X0 O3 J9 [/ xirregularities in the physical properties of the troposphere. ( q; A2 V' M, b3 a! A/ O8 {TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). 7 A2 r: T, D. i8 |(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. Trusted 2 |7 ]$ }6 Z) A. u/ R7 kComputer + t- ]5 A7 W( c7 X3 v- D h5 O( ?System/Software A system or its software that employs sufficient hardware and software integrity & ?9 V+ E( ~$ D# m o0 q+ a, p; q0 dmeasures to allow its use for processing sensitive or classified information. 8 W, p9 K' a% LTrusted Path A mechanism by which a person at a terminal can communicate directly with the Trusted Computing Base. This mechanism can only be activated by the person ; }! O, `" O1 P5 x4 ^* C+ u& u* xof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. - r$ C5 @8 @+ T7 n; }; W% c& n$ X5 LMDA GLOSSARY, VER. 4.0 T 307 4 ?$ W Q3 J( r# I! H, P. uTSA Technology Security Analysis. * T6 l! a7 T# h! j7 g4 rTSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. / Z' {" x2 T* Y. ~7 UTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. 6 ~+ O) a6 g- C! uTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. 7 c) _0 Z$ ^. _) t+ lTSMA Theater of Strategic Military Action. TSP Target Support Plan. # v" d! b+ c) `7 M" v) PTSPI Time, Space, Position Information. . m7 |' d0 h! F3 ?- m3 ^& Y- M0 _TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. . V' W7 H' ]5 D; V9 N. sTSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. 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. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, / J r) M' X) q! }9 R6 ^) owhich have significant potential for improving testing. $ v4 m K+ L0 wTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. ) R6 U, N7 E. |6 yTTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. 5 G- F1 [5 n+ K$ O1 Y* t4 sTTT Test Technology Transfer. 5 v' U& T" p& n, {$ BMDA GLOSSARY, VER. 4.0 T ; y- h+ w+ c2 v2 G* o308 ( L; P3 ]5 `! A. z; d0 BTTV Technology Test Vehicle. & w. K3 H+ ~$ e) E5 {TTY Teletype. - s6 h" x$ P0 wTUG TRACE User Group. I& X5 g9 z! X( V3 sTV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. 8 p1 M8 h2 B! D4 W$ tTVE Technology Validation Experiment. TVM Track-via-Missile. # P. b1 J% J" b8 J1 P$ E2 ~. M: PTVV Technology Validation Experiment. TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. ) s3 X- X" P7 M0 s. u- QTW/SD Tactical Warning and Space Defense. ' @5 W6 K+ }) z# G1 W* \ HTWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. 6 N$ ^2 ]1 l3 A4 J$ l: NTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). + Q% O! \. Q0 ?2 z) `+ ^/ tTY Then Year (PPBS term). . u" I' d9 d+ aTY$M Then Year Dollars Millions. Type A - System # B8 ^" U4 V, w4 |Specification States all necessary requirements in terms of performance, including test x6 L- ?0 l+ S* B/ qprovisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission % s3 a+ Q5 A: r Lrequirements of the system as an entity. * J4 R- L7 ?1 t) q6 i" ]) K: v/ yType B - Development Specification " e) ~3 G2 `* TStates all necessary requirements in terms of performance. Essential physical 2 w0 y) V4 A. T" S2 f" ^constraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item , o w( s+ {# f7 M9 qfunctional characteristics and the tests required to demonstrate achievement of those characteristics. # |7 V5 S4 {( L0 s ~; G, D% W# WType C - Product & l O3 D8 r! ^7 k$ cSpecification Product specifications are applicable to any item below the system level, and , V7 ?! M$ q' V; n& ?( H- smay be oriented toward procurement of a product through specification of - l, M4 y4 o |9 xprimarily function (performance) requirements or fabrication (detailed design) , f+ b7 A9 q3 d( p* ?! r" N+ y$ Jrequirements. Type C specifications intended to be used for the procurement of items including computer programs. 2 ]& R: d4 o5 Y# p/ {Typhoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U # K y* I7 d7 l8 |; t4 `309 5 I7 b, F' }# _0 y, n& v! MU Uranium. 5 |: B5 S( @# @U&S Unified and Specified [commands] (pre-1996 term). 0 w# D: F1 m/ |U.K (UK) United Kingdom. / X9 k5 G. N) SU.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. / q1 G3 O$ T3 t1 C$ M1 NUAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. * U* U5 C F. \4 W) u$ DUCC 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 and coordinating program requirements for testing MRTFB ranges, as well as the ; a1 E Z' x2 S) o; |0 F1 wcapabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) # V: x9 f3 z* M, rOperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. 5 r1 K: k4 H7 s9 O EUEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U 8 @2 y! b1 \; l6 C3 J6 Y310 8 @2 U. `5 R" e$ i; W& dUFG User Focus Group. - I2 N, _( F+ x9 W* l8 W: f3 j! dUFO UHF Follow-On [Satellite Communications System]. + N' @; I; C$ Q5 p5 MUFP Unit Flyaway Price. 6 T0 U6 O9 e3 Y/ n. T/ ?UGF Underground Facility. 0 G8 a1 V$ p$ x6 [UGS Unattended Ground Sensors. UGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. ' R+ p' k# v' m5 M- ^! `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. 3 }9 d' z e* [4 ~/ EULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. 0 k# H3 ~( E* aULTDS 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). UMD Unit Manning Document. / j" n' X, X- B9 M8 u' }UMMIPS Uniform Material Movement and Issue Priority System (ILS term). 8 g E2 J* ?, Z& y2 x: y- aUNAAF Unified Action Armed Forces. % e3 |( s: I& z5 g+ Y( L- _9 ?7 NUNC United Nations Command. Unconventional 3 o9 ~' N: P1 J' t/ tWarfare A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare includes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, covert, or clandestine nature. * c( b& C) z/ E5 c+ M7 \Unified Action Armed Forces A publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or more Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and & l0 J% S4 j; G! y- R, Dcomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary ) [/ v- v0 g2 p# y* k" R, Aof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U # F5 B. s$ `$ N' L1 \, Z' C311 UNISYS UNISYS Corporation. $ O+ o, s6 g9 AUnited States * u% k4 K7 I& k2 xArmy 0 `$ d* a3 g6 g3 Y5 \' `8 ]Space Command ! U& w! ^- z4 C' H8 C! u(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army z9 R3 M# `" Q# Welements of the SDS system. Located in Colorado Springs, CO. " B) j7 N+ M! K$ `4 V4 D8 eUnited States 3 ?- x. S; }" w' w, O3 RSpace Command (USSPACECOM) The unified command responsible for planning and conducting ballistic missile & L, Z' ~1 ? s3 U. I" Gdefense. Located in Colorado Springs, CO. & |& \1 B" X3 D6 r; OUnited States % a$ x6 Z) {! S0 s0 yStrategic 4 k: B/ S9 G. E1 d1 x% sCommand : p8 q! K @* ? W% X3 g0 Z(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic 2 _" Z7 C% @' J3 y# @: {4 qmissile offensive combat strikes. Located at Offutt AFB, NE. United States Transportation # e5 ^9 W( Q& e- WCommand (USTRANSCOM) - q [( ]# a: NThe DoD unified command responsible for providing air, land, and sea : {5 h' K2 z/ \/ ztransportation for the Department of Defense, both in time of peace and time of war. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as ; R( H0 h( o) _5 y9 p5 Tneeded 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 Objects Objects so closely spaced with respect to the sensor focal plane as to be 2 v5 v/ N* e- h# V/ p! j; o9 Iindistinguishable from a single object. # [' F- `1 D1 O' P& ^9 k5 XUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. ( E [( n# N J' ~! mUOC Usable on Code (ILS term). B! @5 g+ x. u5 TUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). : ] J8 z/ N8 _% oURT Upgraded RTD. / Q3 g# K9 C x" F/ t* C2 A- I0 vUS/UK United States/United Kingdom. , V/ k1 N3 P+ c9 _USA (1) United States Army. (2) Under Secretary of the Army. & ]! q5 l: r' b: a; CUSAADASCH U.S. Army Air Defense Artillery School. 0 r1 w' `' Y( n$ B8 R" ^) hUSAAE U.S. Army Acquisition Executive. ! E) `7 d6 I& G: E; ?* zMDA GLOSSARY, VER. 4.0 U 4 J7 |' W* q% t- e N; F! e312 USACE United States Army Corps of Engineers. * T9 h: I( g- T3 yUSACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. 4 `: \3 o3 Z7 y, q- mUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF % k, \$ o- r2 I: ?$ R8 f' H/ PSystems Command /SSD. 5 {# Y" C% _9 qUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ; K! f! \/ |* ?6 x9 n4 yUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. - Z& [: E0 }( V/ Z) `$ pUSAFLANT U.S. Air Force, U.S. Atlantic Command. ; O+ V7 } Z. v$ b+ A/ E2 ^USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. % r3 m1 E0 e8 h; D: iUSAMSIC See MSIC. ; {4 j! z8 f3 B" i- F8 ]: cUSAMSAA U.S. Army Materiel Systems Analysis Activity. # M2 c) O5 o0 B) BUSAOEC 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. USAREUR U.S. Army Forces, U.S. European Command. 9 `9 f& N: y; x8 g, ~, _USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. 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. USATRADOC U.S. Army Training and Doctrine Command. ( I/ i7 K! y( v- B2 d6 IUSB Upgraded SBD. 4 ?! G( I& a7 B9 kUSC U.S. Code. 6 F- ~8 \; e3 S0 rUSCENTAF U.S. Central Command Air Forces. & H& U( d8 r: y MMDA GLOSSARY, VER. 4.0 U 313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. % a4 o9 r" i8 X' `/ sUSCINCCENT Commander in Chief, U.S. Central Command. 2 v% l0 Q X! K- m- pUSCINCEUR U.S. Commander in Chief, Europe. 5 x* o1 L# [ w4 m4 b' @# \USCINCLANT Commander-in-Chief, U.S. Atlantic Command. & C& \2 s$ L& b) L3 ?- aUSCINCPAC Commander-in-Chief, U.S. Pacific Command. 9 q1 K( H0 O1 R1 ~. V* zUSCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. . w1 g# w) c+ f. z+ Y" R. aUSCS U.S. Customs Services. USD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). 0 ?7 t* |- u/ V' f: h V+ b8 yUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. 2 N8 a- \: }- G/ |. sUSD(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. USDR&E Under Secretary of Defense for Research and Engineering. 5 c) S4 i. R+ U; b6 A& }$ v* CUser 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 System (UOES) . e6 `( I# q0 P- yPrototypical system developed and tested as part of the early phases of the & o4 ^0 }7 q1 g% udevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the # N0 D8 {) z" E8 |normal acquisition cycle. / {* u, J; M9 ^$ k& F! ^+ o& x+ P; bUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. : M: q" q$ d1 W' E, {* Y/ _USFK U.S. Forces Korea. [$ ^5 {+ [, K% p& J3 q3 jUSFK/CFC CSFK Combined Forces Command. 0 B% x5 e x" fUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U ; o4 @, O# N6 Q& D" h314 7 l, `& P9 f) yUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. ( ?! d, W$ q: O' [* B uUSMAR- 7 W0 P$ l6 K7 P& u* EFORCENT U.S. Marine Component, U.S. Central Command. " t0 e( R) w! W: ], C) `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. ! D7 ^3 p) h. |! z8 P# {7 r# qUSMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. USN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. 4 i, j' O$ |1 t$ w. h; uUSNAVEUR U.S. Naval Forces, U.S. European Command. " a" l$ \8 ?6 l% w0 H' ?$ w# e- J! DUSNIP U.S. Naval Institute Proceedings. - R! X* e0 g% L3 [/ cUSNO U.S. Naval Observatory. ( Q( n; g/ c; D0 F/ NUSNPGS U.S. Naval Post-Graduate School. & ?( T) g5 f0 XUSPACAF U.S. Air Forces, U.S. Pacific Command. " m! ?1 f5 \- g/ EUSPACFLT US Pacific Fleet. USPACOM 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. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. USSS United States Secret Service. USSTRATCOM See United States Strategic Command. 4 N+ z& V2 ^! t- d( q( e U' FUSTA United States Telephone Association. " F6 g, R" w* ]2 {0 m" V6 n+ `5 XUSTRANSCOM See United States Transportation Command. % w3 S, {8 U P3 ~' h/ p( i9 J+ }UT Universal Time. " u) y, a# D( XUTC Unit Type Code. ; o4 ]5 @/ s1 k4 e( ]MDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. , M ^' G' w1 U/ J: I9 c; xUV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). 1 y4 a9 q9 g4 [ @& K! w2 UUVPI Ultraviolet Plume Instrument. 7 U _9 w+ G! NUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V + N8 |+ M. W1 j8 O+ f: g* _( _316 4 q# x, G$ U- k7 sV Volt. + r! S1 G) y1 T7 I6 d H2 i/ HV&H Vulnerability and Hardening. ) R. H8 z( z9 @ Q3 Y* J' |+ P: V: N: qV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. 9 l" T3 c4 R, E0 o6 t: ]6 hVAFB Vandenberg Air Force Base, CA. + X& K% p& B, O1 A" _: qValidation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, $ Q; U4 R1 S8 v& A9 }9 jtactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. 6 d% x' Z; l$ ?: `VAR Visitor Access Request. : k1 M4 z% v. V+ yVariability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical . @0 C& N# _2 l# {* z; N1 ^ Hfactor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. / D6 Z% ~9 ` ]2 Y+ J* }3 @VBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. * f9 H' C" e" p! k4 U4 ~- r5 SVCRM Verification Cross Reference Matrix. 0 |+ Y0 q! }1 iVCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. , ~8 s% Y3 w5 V3 B9 h1 mVDU Visual Display Unit. VE Value Engineering. VECP Value Engineering Change Proposal. * r6 H+ r4 C# @. K# a- l! ~0 }Verification (1) Confirmation that all data inputs, logic, calculations and engineering + t: f" e0 _, D! {3 d2 Orepresentations of a T&E resource accurately portray the characteristics, 3 Z* Z$ r0 u O% f- icalculations, logic, and interactions of the system under evaluation. 3 O( q2 p# r( ]0 C# B(2) The process of evaluating a system or component during or at the end / }4 T/ [6 J1 U) E, Zof the development process to determine whether it satisfies specified requirements. 3 o' k% K" X1 Z- V `VESA Video Electronics Standards Association. VFR Visual Flight Rules. % P1 ^ [% J; ~3 t, b2 ?VGA Video Graphics Array (Telecomm/Computer term). 0 e7 V0 V/ C! r1 t: R# Z# fVHF Very High Frequency. % q3 `/ k7 F9 Q U1 fVHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V % T G2 p+ U. D* Y3 h: ?317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D 8 }( q' J% a) }: RExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 , q! {7 {2 y H- @) u, f/ Q7 `Operation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a gimbaled airborne sensor with visible, experimental UV and quantum-well IR 8 l: _ A5 H, l2 Tcameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. ) D" Z3 f2 h1 b# K$ D$ E1 YVIS Visible. VIS/UV Visible/Ultraviolet. : ^6 L6 v2 R9 U7 f. `Visibility Range & }# o; V# b0 m2 M* d(or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can : T# v4 \( a" x& R/ yjust be seen against the horizon’s sky in daylight. The visibility is related to the % [, g$ G N9 Vclarity of the atmosphere ranging from 170 miles (280 kilometers) for an 0 B( T0 w: K. i# wexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze or fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). Visible Electro- Optics 5 c3 A/ G N) s/ y+ n: x$ N- ]Technologies/techniques employed by optical sensors in the visible portion of 7 N/ J& K, c: r; cthe wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. / a) H% B" |- M) b2 K% lVLOS Vertical Line of Sight.

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VLS Vertical Launch System. " K% u( O+ Z/ A6 z* K2 lVLSI Very Large Scale Integration. 3 ^, j2 e: j4 Q0 J4 N1 W, VVLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. 1 a- S( I( U8 X5 v' f3 bVMF Variable Message Format (Telecomm term). $ t: S* V9 N `0 @VOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. & T9 S Z5 j# u% C* d- Q* yVTC Video Teleconference. # |6 X) a$ \, `VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. 5 Q. b3 T4 ?) Z$ g" e7 S0 }1 ?VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 2 _) \+ L; n4 s0 W) m- F6 b318 Vulcan UK bomber. 0 `7 p( a# R7 `2 K% ]VV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. + A! }5 v4 s% N8 h7 g9 I9 RMDA GLOSSARY, VER. 4.0 W 3 d4 X1 b5 H1 r319 W/ With. ' L+ T! R0 f' k, L" o$ w' r4 z9 f% ^w/o Without. & {% P6 [/ j8 k5 J7 RW/TD Warning/Threat Detection. " v+ \9 Y; `' W4 Z) s) qWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. 6 `# E( d9 K8 e/ Y' g& wWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area 9 ]3 r i; v& D0 ~( W: z2 L* l" VMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more $ k/ ~* i/ p" s2 iopposing forces, using rules, data, and procedures designed to depict an actual 7 X+ _; }1 @! N' d, Q4 @or assumed real life situation. ) {+ `: e: H+ K" d1 ]4 T) q3 ZWargame 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, ) j, N# J" u5 t. k" uvalidation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, 5 Q2 n2 h$ q5 _4 l* n& yairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related v' |8 p) t$ a. kcomponents. WARM Wartime Reserve Modes. ! F% N2 _4 G6 V x* t5 n, SWarning 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. ; u) Y; f& \ Q; VWarning Order A preliminary notice of an order or action that is to follow. ! \% M$ z) i7 l, j' [- I0 DWARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) 0 W+ D4 i1 R) z- a2 YCharacteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will S& h- j' p7 |% \contribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for wartime or emergency use and seldom, if ever, applied or intercepted prior to such use. WAS Wide Area Sensor. # [- B2 @" }, A) I5 w/ GWASP Wide-body Airborne Surveillance Platform. A modified DC-10. $ q4 j- }3 r/ K" c) KMDA GLOSSARY, VER. 4.0 W 320 WASHDC Washington, District of Columbia. ; ?8 L" u) x3 D8 c- UWastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. Watch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. ! P. w$ b B4 i O4 [! n8 UWavelength The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation. & w0 B" r$ P3 Y( @WB Wideband. : }4 [2 Z4 t" D& MWBM Weapons Battle Manager(s). $ h5 @" Z* ~4 g4 t) X* @4 OWBS See Work Breakdown Structure. 0 U- \6 h( T) V3 [6 B4 ~4 d9 yWCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). " w5 E1 P3 T; g" V9 c6 y. |WCP (1) Weapon Control Processor. (2) Weapon Control Platform. 8 l) I* R& {+ k5 e3 }6 RWCS Weapons Control System. $ a8 W u: E3 `$ g* DWDM Wavelength Division Multiplexon. " G# m& Q' W g }" lWeapon Enabling The set of control functions without which defense weapons cannot be z$ f" o4 C( t) c, Y. O! slaunched.