航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 ) e/ m+ W O6 r) ? I, y: \, eTheater Missile Defense Council W) p% `! S/ S$ c. o T(TMDC) - ^ i5 g g' [) a2 iA consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. , Z9 v% C+ b9 r0 ^/ \3 c! zTheater High Altitude Area Defense System % v9 `$ s7 E$ G+ f1 {(THAAD) & ?9 {; r! f! sA ground-based, air transportable interceptor system that will provide wide area $ U) ?3 P, \* q3 {1 Udefense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. Theater Missile (TM) ; g/ q0 E5 O$ f+ w% H3 yA theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable of attacking targets in a theater. Theater Missile Defense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, * J' L8 B' [4 W$ y1 f) K3 Tintermediate-range, or medium-range ballistic missiles. Theater Missile ( y$ E0 }, _: {Defense Ground- Based Radar (TMD-GBR) 1 }" U+ |% o; o0 AA ground-based, air transportable sensor that provides search, tracking and 4 F9 D% k* ~. f( pdiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. ; C7 Y& T L6 w! U7 J& i- KTheater Missile * ?+ t$ e7 F. |3 {4 yDefense Initiative 7 L" _2 F. }! g( X5 @(TMDI) An initiative under which all DoD theater and tactical missile defense activities are 1 r/ S: t2 t) N3 F# O5 Ycarried out. Section 231 of the National Defense Act for Fiscal Year 1993 (Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. " Z3 Y4 z& N* q) c* c ^$ RThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or 3 u- O' j4 a2 breflected from the objects, which are imaged. 1 i# _& n+ Q; H8 T/ ~/ MThermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. : `% y# @# n' U0 s2 IThermal Management * j' B9 L+ M3 n1 `Technologies/techniques associated with the control and management of # K' L# [; g) ~, A3 q% |: ]% kthermal energy, its generation, dissipation, and recovery. Thermal - ~0 K; x# ?+ kRadiation 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 8 R- E/ @% V X) M" a5 H. [ultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, 7 d0 J- X" J2 X2 }! Jemitted by the nuclear weapon residue by virtue of its extremely high 1 O7 L3 k2 m) y: ]# Ltemperature; it also is referred to as the primary thermal radiation. It is the absorption of this radiation by the ambient medium, accompanied by an increase ) Q# M* _' O* F3 jin temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; . X" @) S: h6 g, E0 ^; X0 |$ tit is a region of more or less steadily increasing temperature with height, starting at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the : P4 T/ T% N& c3 X1 R; z5 Z0 uexosphere and most or all of the ionosphere. 6 U# i. n) I0 _2 [9 ?7 H1 G6 CThreat Characterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor % h. l% {$ g( M( n3 q% C5 Q(Threat Tube) ) C9 y: s7 X# j! {5 kA tube containing all the objects originating from launch sites and aimed at ) t* p: A4 {$ S E# ?4 S" R- Rtargets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management computation. - E i. _8 ]) t( J7 V+ V% sThreat 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. 8 v/ o5 ?. D! kThreshold Performance capability or characteristic level in terms of a minimum acceptable " K- `# r4 e7 D6 m) Nvalue (threshold) required to satisfy the mission need and a performance objective. ! K3 W& v' D q! E4 e' @2 S8 P1 L& c* RThreshold Defense A defense strategy that concedes that the target can be destroyed at a price / y! T) s9 p% athat is not prohibitive, but the presence of the defense is thought to require the offense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. ! E; {4 `! f) \3 JThrusted : C, a( Z% @7 jReplicas (TREPS) ) Y( x- o, i' S* F- Z2 ]* \6 [Conical decoys equipped with a miniature rocket device. Generally used to 2 t) q% A8 \( D9 V5 D$ G5 o6 Jchange the decoy’s optical signature to resemble that of an RV in the reentry 4 _( [* b! d$ }; E; yphase. TI (1) Technical Instruction. (2) Technology Insertion. , o" C8 T2 E8 ZTIARA Tactical Intelligence and Related Activities. 8 L5 I; V3 d; h; d: l) M2 Y4 GTIBS (1) Theater Information Broadcast Service. ! N8 R) W8 B+ q) K. j# `( O(2) Tactical Information Broadcast System. 6 |; @3 i* I+ _4 E" L(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. 9 \# S/ _* H1 rTIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat ) `- q$ ~# J7 S(e.g., boost phase). & N9 R7 y) Q! v4 f/ Q1 O4 C3 W& STiered Defenses The use of defensive systems at different phases of the missile trajectory. 4 a( L7 p2 X5 S( \( h& STIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. : v0 \% G/ O8 PTIL Technical Insertion Laboratory. + t9 C7 Q# ]) Q7 n t* n9 FTIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T 300 ! @6 a b ]* B* I/ p- k% p X8 sTime-Phased - X' S; k( u. h/ b3 [# Q# AForce and 2 e& c! B) Z+ zDeployment List 1 ?6 X+ q. |4 B3 I a' gAppendix 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. * i9 I& X+ a4 E3 [: l" }Time of Flight % P- u# ~, W+ e" A, B6 P(Max) The maximum time for a booster or vehicle to perform its function from time of 3 ~. y7 ~! u* m. @launch. Time on Station The time the sensor is in its operating position. Time Sensitive Targets Those target requiring immediate response because they pose (or will soon / K# H0 ]7 |* w, k1 wpose) a clear and present danger to friendly forces or are highly lucrative, ! t$ v- ]6 \" 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. 2 b8 ^! I/ P. |, JTIP TOPAZ International Program. " u4 T: t c! I1 ]# W0 NTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar ( r) e& J% n: R) }/ mTerminal (GBRT).) : h, }) U0 y' B* pTIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. * {/ s+ V6 M& H' V, _TLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. 8 @9 X" P0 a' @4 |& WTLV Target Launch Vehicle. $ a' F2 Q9 M3 e* S k* STLX Teletype. 9 ~- W# ?6 ?3 n. p. ]TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). 3 t) e7 o3 Y1 i9 d& Z% P d: m! wTMCC Test Monitor and Control Center. 7 k8 I0 Y( H, ` _, HTMD See Theater Missile Defense. ' \9 b3 p$ {& i) ]0 `1 ZTMD C2 Theater Missile Defense Command and Control. ' d/ E# u! p! E2 [) t ^( lMDA GLOSSARY, VER. 4.0 T 4 u' M% } b! K( j) Z: _. q+ z9 t301 TMD C 3 I Those assets that provide connectivity between and among Theater Ballistic ! l2 k, V( n. ?8 Q/ b; _! IMissile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). - }: O) s: `) L1 _! D- Q3 yTMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. 0 h$ r4 N- n2 y. Z9 \% B' Q1 fTMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. / E7 B( V- y* ^4 aTMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). , W8 x2 o" e, ?( z+ STMPCU Tomahawk Theater Mission Planning Center Upgrade. - v9 D4 q7 f; j, ]" ^TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. " J: p" H1 M! e4 i( P+ qTNW Theater Nuclear Weapon. 0 E! i) Z! E( x3 f5 V# i- U! g8 j$ PTO (1) Task Order. (2) Technical Order. 0 s0 B( Y! @( L) y1 GTOA Total Obligation Authority. ; T0 @! d6 J- \, {6 V- T; FTOAM Tactical Air Operations Module. TOC Tactical Operations Center. 0 {: J2 h, E" d9 q. c6 eTOE Table of Organization and Equipment. ( l! b) U& r E3 z9 [1 y/ GTOF Time of Flight. " `& L3 `' Q& U' p, H+ fTOI Track of Interest. 8 }7 U1 k% o2 T6 J: iTOIA Task Order Impact Analysis. 1 o7 W$ X/ s/ V; qTolerance The ability of a system to provide continuity of operation under various abnormal / \ d; \# n% M8 H4 K* M" S& g! Kconditions. . Q @! ]' U8 o0 C6 `+ l5 N: {TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 TOMD Task Radar Management Details. , W$ C( G: k+ P+ A* E* z9 V$ A1 |TOMP Task Order Management Plan. % F/ s5 y/ \7 F+ z4 e6 ~TOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. 7 ]! ~8 G) T. m' {TOOL Target of Opportunity Launch. # L- B' E! z9 R9 ?% i/ eTOP 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. 6 O) C; Q) ]: P& e( q" H! \; Z% M7 LTop-Down Design - F k1 K. \1 F+ PThe 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. / c8 b. w) S& R& L6 WTop-Down ' Z% j3 y( A1 }% E: c- RTesting The process of checking out hierarchically organized programs, progressively, * |5 c; w- c( q" _from top to bottom, using simulation of lower level components. 6 ?; a, Y' ]& s% h% }) K/ VTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power # s8 [$ j$ o- C! ?technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation Authority (TOA) 5 y9 }) a- z2 g% K$ X3 OA DoD financial term, which expresses the value of the direct program for a given fiscal year. * t K8 R% |2 A- \9 T3 dTotal Quality " s7 q+ @( x. y( w4 JManagement ' ~! V+ Y" A* |( _; G+ {5 V+ z' J(TQM) A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. 0 w. d8 z( Y% B7 V, oTOTS Target Oriented Tracking System ) A! J6 x3 q9 ?# M* P5 I$ qTOVS TRIOS Operational Vertical Sounder. + m; v4 Z9 @' \5 ]% p! NToxicity 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. TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). 9 Q' C! M' D: l. Y' B. g' KTPDR Total Processing Data Rate (TelComm/Computer term). 7 J" k3 i8 k5 Q& pMDA GLOSSARY, VER. 4.0 T 303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. - S& S1 R" \4 z2 W$ z) CTPFDDL Time-Phased Force Deployment Data List. ! A: r% }/ r( ^- I: ]# ]TPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. 1 p* k* Y) ]0 Q, v! ?) rTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. 0 t! \0 b. p; Q$ [2 zTPS Thermal Protection System. ! k x4 n1 [9 X2 _' a) sTPT Theater Planning Tool. 8 L6 g1 A# c4 J. XTPWG 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 8 Q L0 v" V# f$ H yconstraints. $ p/ u6 [) G, u8 o(2) The degree to which a relationship can be established between two or more products having a predecessor-successor or master-subordinate relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. (2) To display or record the successive positions of a moving object. (3) To lock onto a point of radiation and obtain guidance from. / g; e# R+ M# j(4) To keep a gun properly aimed, or to point continuously a target locating 1 F. j8 |% I: U& G# kinstrument at a moving target. * n/ A$ n- |3 F' v4 ~" z(5) The actual path of an aircraft above, or a ship on, the surface of the ' A! _4 B f& Eearth. " P8 r# I) i+ mTrack 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 Death The maintenance of an associated track through all phases of flight (i.e., boost 9 a4 } y5 I p/ W) S9 uto reentry). 8 ~% {# k4 w2 n& _Track Correlation The combining of track information for identification purposes, using all available ; q5 r' i6 m) ~- h& X! pdata. 9 D- d2 y7 R% L, y$ YTrack Extension This term usually applies to improvements in track estimates by use of new data. ( e( l- |* P# W0 ^It is sometimes used to describe a process of target extrapolation to a future time $ h8 u% L9 b/ `9 oor place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of 4 H: e3 a R8 q7 g& [the above. Track File-Track History # k# E8 K) G9 @ i5 PA set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a 4 {: z$ f& a* Z) f; Uthree-step process of data association, track initialization, and track improvement by filtering. , t3 e7 \! `$ f! c- t9 N: |Tracking The act of generating and maintaining a time history of an object's position and any other features of interest. + l% E4 i# y& q- iTracking and Pointing Once 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 3 b K: \( j" |(Max) - Y9 b! ?* M8 }6 [The maximum line of sight distance at which a sensor can maintain track of an object. ' n4 Z8 C K$ H; m3 P- ~3 Z* l+ P- iTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector % s' p& B0 s9 L) F* W0 l# l) wof an object. The process typically requires observation from a number of frames. K2 G6 [% ]$ ?- m* z7 _9 @Track Production 1 i! J+ ?* F5 H7 YArea D. t7 O9 o% ^3 PAn area in which tracks are produced by one radar station. ' ?: T0 n& A7 M0 N# i. LTrack 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. . J/ A' v+ @) ^& Z$ d5 D, WTelling may be classified into the following types: back tell; cross tell; forward tell; & V8 G3 {( D9 \lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. 2 o* N, [" d5 W+ V0 gTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. 0 A, i k5 ?0 a4 i# gTraffic Capability Maximum The maximum number of objects per unit time which the sensor system can maintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high ' Z2 [4 w4 }9 m" Sendoatmosphere. 2 g2 J# y: o9 }1 {Train 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. " x" x% v5 ~/ N4 I @% ^# u. f8 WTrajectory Histories . Y" h3 Z4 l* _; P( E6 R$ ATrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). 0 B( Y# n) @& F- \3 `Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. I1 \0 T3 p2 ?- NMDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. ) g: l: o y2 h+ K" {! }! mTRANSEC Transmission Security. . u; g7 f0 D1 V; O6 B: E2 q; a6 j0 kTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. 8 j# W# W! g% j$ y2 wTransition to 1 e! c+ }* B: d3 \ u" qProduction 1 d, y( ?+ r* u VA risk reduction process during which the program shifts (passes) from 6 u/ c: ^7 _0 a8 }: odevelopment to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to + G) J i1 H6 G2 Yensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission Security (TRANSEC) That component of security, which results from all measures, designed to protect communications transmissions from interception and traffic analysis. (See COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative speed of the fluid is subsonic in some places and supersonic in others. This is , J9 k% t( m3 p. H7 Lencountered when passing from subsonic to supersonic speeds and vice versa. : I0 S# |: w$ n- f9 cTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. # C9 q/ D8 B! d. ]- M1 kTRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. 7 ]7 J& y9 d( Y4 d: iTraveling Wave , i4 K. _9 F9 G: r% m* WTube (TWT) ( _" I+ q; ?) `An electronic tube in which a stream of electrons interact continuously or 8 N3 p1 ?0 d- E* 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 the microwave region. 7 @2 I# L5 |( }" s; W! _: dTraverse (1) To turn a weapon to the right or left on its mount. 9 h0 S# G n7 g+ N2 I(2) A method of surveying in which lengths and directions of lines between 7 a7 D6 a- B) C# F6 Epoints on the earth are obtained by or from field measurements, and 9 l. G/ T: k* U9 N' L/ m: r+ Y" Sused in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both 2 m( A2 @) I. M* o8 vas a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. TRD Technical Requirements Document. TRE Tactical Receive Equipment. TREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. $ [6 J+ v, p3 S% n8 Y1 }TRESIM Tactical Receive Equipment Simulator. 5 s7 x7 u( q! G9 s. u' J6 ]$ NMDA GLOSSARY, VER. 4.0 T 306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. - ]* w4 P- a1 ~TRIDENT Class of US ballistic missile submarines (USN term). 5 \: k4 p' p. k2 ]5 [TRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). $ u$ Z" a( j- O6 ^" ATRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. : f6 \4 D: m5 ?& K) A9 t6 R- [8 tTRMP Test Resources Management Plan. 8 b. |' v9 ^" Y5 | D: aTRN (1) Task Requirements Notice. (2) Test Requirements Notification. ) e( m0 l8 I8 t% [5 |3 b- g5 zTrojan Horse A computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. 4 c N; S" H# d2 \# S6 RTROPO 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 3 X5 z8 L* s# X* E7 babout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the tropics. (See Stratosphere, Troposphere.) ) n0 J) r; K7 jTroposphere The region of the atmosphere, immediately above the earth's surface and up to - V+ x* p- t$ |. L; C9 n' J0 |( Qthe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or less complete. Tropospheric % j6 h6 [% G9 \2 w# z. ~Scatter 6 v7 o2 \: \$ z& c6 I* [The 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. 2 ~; o0 @% X6 T6 l, B(3) Technology Readiness Program (pre-acquisition program status). - l0 l# e; B" h4 O; i(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. 1 `( N5 K2 @9 D& tTrusted ( R# c' a/ `. Q# g. WComputer System/Software A system or its software that employs sufficient hardware and software integrity - ]5 g4 z/ q/ ^& ~2 E5 R6 gmeasures to allow its use for processing sensitive or classified information. Trusted Path A mechanism by which a person at a terminal can communicate directly with the 6 l% z. n3 O( t/ XTrusted Computing Base. This mechanism can only be activated by the person of the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. . Z( {) V+ ~! N* ^3 I0 \TS (1) Terminal Service. (2) Top Secret. " u6 d, A# j# m1 Z' t2 XMDA GLOSSARY, VER. 4.0 T + C+ y' Z9 M- O( e# s307 TSA Technology Security Analysis. B3 \% f9 _% H vTSD Tactical Surveillance Demonstration. ; U) o/ ^( T8 L: f2 A1 a9 ]5 RTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. ) @7 \" S$ _' }- z1 XTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. TSMA Theater of Strategic Military Action. / X4 t" c; u" STSP Target Support Plan. 1 A! ~; d% J& x1 Y0 S. S$ M: gTSPI Time, Space, Position Information. ; Z0 Q& M' A7 \6 ITSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. 2 _+ O# G! f- g- rTSSAM Tri-Service Standoff Attack Missile. 4 R1 P! c2 x% g# g. |* eTSWG Target Signature Working Group. TT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). 3 }% G; \9 A2 A8 z' A- x ?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 . R9 Z* F6 Z. F* d7 ?program, which funds the development and demonstration of technologies, . X l# _. j+ G6 f# mwhich have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). ; x9 f4 T% z' u( \/ }- X1 _" V3 l: P7 wTTL Transistor-to-Transistor Logic. 5 j4 I! }' c, ]1 T/ {+ d3 `. UTTP Tactics, Techniques, and Procedures. % S/ n2 k. k+ n& lTTSARB Technology Transfer and Security Assistance Review Board. 3 F {7 f- ?1 mTTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 0 h2 s# ~$ R! y, p- c* I+ I- Z1 A/ `308 TTV Technology Test Vehicle. : C9 H" E6 ~5 w: JTTY Teletype. TUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). 9 Y0 j7 O+ `7 U/ fTVC Thrust Vector Control. TVE Technology Validation Experiment. ; m5 d! R& w0 V2 UTVM Track-via-Missile. : D' S+ I7 r- k, m, \1 ?TVV Technology Validation Experiment. 9 F' G% n* W0 J- i% C2 O: ]& ~2 ETW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. 4 w/ y% K. E4 Q- R9 JTWG Technical Working Group. $ s) b/ F7 L; }! Q6 X8 I$ vTWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). TY Then Year (PPBS term). TY$M Then Year Dollars Millions. 7 Z2 q2 x) b5 D/ F0 L. ^Type A - System 6 A% O0 M. v V! p5 E" `7 h3 YSpecification States all necessary requirements in terms of performance, including test ; Q' l2 R1 [& |5 J- Oprovisions to assure that all requirements are achieved. Essential physical ; U: h; @/ |1 X& H( j8 ~constraints are included. Type A specifications state the technical and mission ( |' D2 N# V) Zrequirements of the system as an entity. Type B - Development Specification 2 N( P/ D4 C' p9 v' p) g! M7 ZStates all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the - c \0 x" S8 z8 ~/ wdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of : V% P$ w! b: g, D- ]those characteristics. Type C - Product $ D8 j: ^0 s8 s. OSpecification Product specifications are applicable to any item below the system level, and 5 o8 Q: |! S) R6 X3 bmay be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of items including computer programs. % B' Y; {! e5 Y9 OTyphoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a + c# B$ p1 n7 ^4 b) v, O, \set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 U Uranium. U&S Unified and Specified [commands] (pre-1996 term). 8 j$ O/ `/ q& L3 YU.K (UK) United Kingdom. U.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. + A: ?) _6 Q+ O9 f- u$ G( gUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. # j+ l' G9 l, [ B5 {7 WUAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. 2 T$ s% R. c" N5 o8 w5 uUCAP UAV Combat Air Patrol. $ O( w! P* _, \2 t( qUCC Uniform Commercial Code (US legal term). p! M, G8 x \: J7 b9 y, dUCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). , r( ~- `5 \! GUDS Universal Documentation System. A standardized comprehensive tool for stating ! z9 A! d1 Q/ c7 rand coordinating program requirements for testing MRTFB ranges, as well as the capabilities and plans of test ranges to support program requirements. It ; {1 V2 g- a% r6 Iconsists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), ) z6 V$ Q, Q, N2) 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. UEME Unified Electro-Magnetic Effects. . J: R) W. h$ AUEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. & W+ i0 c* V9 H; P$ R6 H5 Q+ kMDA GLOSSARY, VER. 4.0 U 310 UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. 3 J& S2 w: g7 |2 nUGF Underground Facility. UGS Unattended Ground Sensors. UGT Under Ground Test. UHF Ultra High Frequency. 2 p; T( }; a) ~* Q! R4 ~UIC Unit Identification Code. UIN User Interaction Node. : H- o/ X* b6 W3 E+ R hUKAS (1) UK Architecture Study (2) UK Associate Studies. 5 q6 ~! u& G& ]0 W- V5 {UKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. . o+ G: @! t" ?( eULCS Unit Level Circuit Switch (SINCGARS term). 1 l+ a @: Q( i) DULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. % v- Z- A! W. ^9 p0 nULTDS Unit Level Tactical Data Switch (SINCGARS term). . b0 A7 H: i/ {$ [2 rUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet 2 @3 |# }4 `& Y/ v8 F% Z(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). 0 |6 a- i% T2 [ ]! m& u- N. fUMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. 0 l: Q* p, g9 |( q4 j1 oUnconventional 9 ?; d |! i5 z' B, D3 UWarfare 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 6 g1 u m" k" r2 U4 cand escape, subversion, sabotage, and other operations of a low visibility, A# J2 p: _/ Vcovert, or clandestine nature. 8 v6 f( m2 R- L$ N# I% K) HUnified 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 7 t3 z J/ j+ I! |more Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and 3 f/ c8 l" F, v" M, [9 R& w' _composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary " y4 i" i4 w. `4 N3 t8 sof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 . o7 [. R4 ]8 g# l6 o1 BUNISYS UNISYS Corporation. ' u% z3 O9 z( `' q7 aUnited States Army 3 W7 ^: W: ~6 L3 O4 oSpace Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States 1 D' G4 G( a: r; {4 bSpace Command 2 I0 g5 R- {+ x- Q(USSPACECOM) $ @- I" O* {8 I! b' B6 [The unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States ! S; ^2 q. e0 Y& l! V) X$ eStrategic Command (USSTRATCOM) ) \. e+ ?- F: m2 K. sThe DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic ; i+ X2 i7 P5 ^; F2 O1 x4 r2 C7 e: T% nmissile offensive combat strikes. Located at Offutt AFB, NE. 6 R" \3 w4 z6 o- q) ^6 G, z5 JUnited States Transportation 3 v6 U" [; B1 T8 r. F0 y( m* l1 A. w+ DCommand (USTRANSCOM) ; b6 S9 Y9 ~+ [The DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of war. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as 1 B) f1 g9 x* Cneeded to support the deployment, employment, and sustainment of U.S. forces 6 z8 _" R3 E4 p8 Fon a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. 8 f* w5 ]# H1 G8 k4 `0 n5 `Unresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. UNSC United Nations Security Council. , Y) ~( }" s7 K, E7 ?UnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). 1 p: m6 Y4 w* ]8 A/ y* N. U* W- WUOES See User Operational Evaluation System. 4 G" G* r+ C. d7 K# \, sUPD Unconventional Passive Discrimination. ! K! c" Z2 A( u2 \3 iUPS Uninterruptible Power Source. 8 }! _$ i2 k& ?* XUQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. # b; p8 x6 V# R& k B+ ~URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. & Y, f/ Y+ l& VMDA GLOSSARY, VER. 4.0 U 2 A& S2 Z/ Y) d' u% k7 T312 * V% |! Z. h* {8 ?+ ~8 zUSACE United States Army Corps of Engineers. 3 z. A) a% a7 ~7 _USACOM United States Atlantic Command, Norfolk, VA. ' @! I1 [& W4 r2 P8 M1 |1 _; MUSAF United States Air Force. ; N* W( _5 G) i3 Q2 K& q( j! T$ FUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. ' r) t# D5 o3 `9 S- {* u7 q7 k8 @USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF 0 z: F* b1 C3 u- S. ~& I" _- VSystems Command /SSD. ) R( d' v8 {6 _" b+ j! GUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. USAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. 7 x& q5 f4 L6 a' J8 n: f) l/ HUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. |, K* S9 Z8 \USAFE U.S. Air Forces in Europe. . _$ {. w& i8 a7 MUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. - f5 Z! \. ~/ d+ t: IUSAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. 1 c$ x: K5 _" ]( N+ {USAREUR U.S. Army Forces, U.S. European Command. & Z( O* a8 B8 X x' u! D" LUSARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. " n; h2 Q* T& x, T& b/ z8 hUSASDC U.S. Army Strategic Defense Command (<1Oct 92). " Z! x. v- P6 C; c* s2 x! WUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL : p3 f" O8 x! y' a2 PUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. & y7 \& y8 F, s5 ? j& MUSC U.S. Code. " ]( P# L( p. D9 g- aUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 4 I* a- {. O Y; b/ C0 VUSCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. " T) p- I1 {" u0 z/ F! ^USCINCEUR U.S. Commander in Chief, Europe. ; [& Z! Z3 ~2 i9 _USCINCLANT Commander-in-Chief, U.S. Atlantic Command. + L" s. E0 g/ q2 C9 o: f2 cUSCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. 3 f% u9 A: z; ^0 K' t. e# RUSCS U.S. Customs Services. USD Under Secretary of Defense. . V9 e& Z) X5 Q, o$ _USD(A&T) Undersecretary of Defense (Acquisition and Technology). 7 D7 E7 z$ y& E: l q- z+ L: q/ aUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. q" Y; `# L( x1 W- a$ {. K# F7 EUSD(P) Under Secretary of Defense for Policy. ' c2 M; n4 `# H8 _! I* RUSDA United States Department of Agriculture. 1 j0 T4 ?* k+ G! ?; O% UUSDAO U.S. Defense Attaché Office. 0 \) o* @9 ?. w, ]7 MUSDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine (hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational Evaluation % [5 D+ K& ?8 j0 F( F5 ^- O1 TSystem (UOES) Prototypical system developed and tested as part of the early phases of the " s- V( p% d) Y; i/ ?$ cdevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) # W; t4 G2 L6 Q( J' L0 z% m' Dcontingency defense capability should the need arise prior to completion of the normal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. USFK U.S. Forces Korea. 1 g1 I4 N! B l' _USFK/CFC CSFK Combined Forces Command. , `) U# \- |3 PUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U " Z+ ]& D5 ?) H314 % {( x3 R( Z4 aUSLANTCOM United States Atlantic Command (Now see USACOM). ( o' W$ M/ ]. `3 j) OUSLANTFLT U.S. Atlantic Fleet. 9 F+ r9 m3 Y) LUSMAR- ) F3 u1 G& h' _7 a: U3 _FORCENT U.S. Marine Component, U.S. Central Command. ; s* t& X9 }4 J% k4 S. y# k$ }USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. 2 d$ O' v( p! e" v( dUSMC United States Marine Corps. 6 M) t" j9 |2 fUSMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. USN United States Navy. 2 {& M, A0 N) l% QUSNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. " x( t& J+ {4 ]4 H- |USNPGS U.S. Naval Post-Graduate School. ~; X' y) n; M$ F1 {5 u+ b$ b+ J/ _USPACAF U.S. Air Forces, U.S. Pacific Command. ; ^, d6 j5 J3 U7 D) [% a) q/ tUSPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). ) @0 f* Y/ B" z% M: R* O D8 yUSSC United States Space Command. ; d/ v3 p5 f" B0 _* ^! s! pUSSOCOM United States Special Operations Command, Tampa, FL. 5 g: v2 c9 n. s% iUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. 0 j9 }' t) ~# _$ v) d9 @3 RUSSPACECOM See United States Space Command. USSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. 2 b! n( Y+ W9 z" t* B% v3 {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). ( p/ P0 [. C* ~/ ZUV Ultraviolet. UV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). 1 f" c9 v, T$ ~( R+ [UVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. ( @7 |+ p: M/ y3 s o* VMDA GLOSSARY, VER. 4.0 V 316 V Volt. 7 Z' s% R9 M" KV&H Vulnerability and Hardening. ' j- [9 o' O3 e" h( E! X' D& W8 g3 K4 `V&V Verification and Validation. (See Verification, Validation, and IV&V.) ; c: H9 f$ g, \% _# Y* PV/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. Validation Confirmation that the processes and outputs from a test resource parallel real : k: Y# }, I9 F. G: Z# pworld processes and are realistically sensitive to change in the environment, 4 N( s! B+ Y% H- I7 Y1 ~ mtactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical ) {' m4 T3 Y% J4 Ifactor introduced to average the effects of orientation, minor shielding, and ( M* v* x2 ~2 \& x$ P/ b" x+ u6 Buncertainty of target response to the effects considered. 4 Q1 l+ z( q( x' k( p4 |/ w2 {VBO Vertical Burn-Out (velocity). , |# a; B+ v2 i/ l' B3 q/ ^" FVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. ( ^) x7 N3 I) c& j$ x0 RVCS Voice Communications System. ' Q0 S/ _! r" T3 J: y4 s, R2 u- I7 @VDC Volts Direct Current. 1 `* Q6 J- M. y' T H6 b# k0 qVDD Version Description Document. 1 R# e# `$ u9 [* L& |VDU Visual Display Unit. 5 V9 A6 L, M& a4 S" K' NVE Value Engineering. VECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, 9 ]0 Z& x/ V( Mcalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified requirements. : s: J0 c( i3 w! g! e" x9 O3 OVESA Video Electronics Standards Association. + t% g" g/ [8 V( k4 } OVFR Visual Flight Rules. 8 N" q- F$ T5 Z4 q/ Z2 yVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. 3 r' v; `% k2 |9 s) nMDA GLOSSARY, VER. 4.0 V 317 VIDS Vehicle Integrated Defense Software (USA term). 9 a1 g* F; w) a" C) h* i2 qVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D ' P/ o0 S6 }5 c: C7 }( C: u: SExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 # H$ R6 [) D. _9 F eOperation Per Second (OPS), using a mixture of experimental three-dimensional o, Z* ^" o! k. k; Q# w, X2 ?circuitry and commercial components. Project also demonstrates VIRGIL, a 6 G# S1 z/ ]' d; fgimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and 7 C5 o; M& j9 Gprecision-tracked with the ANTE processor. ' ?0 [, j: j$ n, _VIM Vibration Isolation Module. " e9 f8 o0 [! v" A4 RVINSON Encrypted Ultra High Frequency Communications System. 3 W L, B" X, W% U1 b/ BVIS Visible. ; {0 p5 i6 V' ~( W# mVIS/UV Visible/Ultraviolet. & h+ O) E2 l/ S% G( N/ y5 ]Visibility Range (or Visibility) 0 z: ?3 S3 h* j2 z# i' P7 D8 z5 O+ {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 9 M7 g, |* s- ~exceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze or fog. The visibility on an average clear day is taken to be 12 miles (19 . k6 T" `4 g/ Jkilometers). Visible Electro- : s4 e3 P5 G8 _. c% ~Optics Technologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. 1 ?6 [1 A: b8 u3 u, @, r: v* s& B- JVLOS Vertical Line of Sight.

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VLS Vertical Launch System. 6 h! e$ u- J5 s2 u$ a7 c9 uVLSI Very Large Scale Integration. . N. m) g. m# A% l y* u8 G, TVLSIC VLSI Circuits. * T. r2 U k$ i! [( g5 A, Z7 nVLWIR Very Long Wavelength Infrared. / t# V; p4 {* p5 y; t2 vVME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). * i& J/ l8 A: S4 v1 ?" _1 `3 d7 ^VOX Voice Actuation. " r. J/ p6 k4 {+ v# Z2 p3 hVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. " u {2 r2 t0 K- ^VTOL Vertical Takeoff and Landing [aircraft]. - t; X& |" y: @8 D, K; |! P! WVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. ( ], M: T% r6 M# _9 o% vVUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 6 A4 w! ?1 g9 B% s/ k0 F318 & u4 C, ~& g/ KVulcan UK bomber. , a$ E. c) i+ J( j6 _4 \! S, l+ PVV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. : n/ m3 z& w- i% A5 D& @VVIRF Verification and Validation Information Request Form. ! ^8 e, e+ m+ dMDA GLOSSARY, VER. 4.0 W 319 W/ With. w/o Without. / J" p: Z, P# _- P3 g& `) @. DW/TD Warning/Threat Detection. WAA Wide Aperture Array. ; C6 Y- G' `9 j5 jWALEX Warfare Analysis Laboratory Exercise. ) o4 F% A3 w; Y1 }WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area 1 a: X r" z6 ]0 h! P) VMunition. (3) Wide Area Mine. (4) Wide Area Missile. ) n% ?( C% P; T$ z, TWAN Wide Area Network (Telecomm/Computer term). # g, a- J8 Y: c5 Z4 M9 `9 D; P* IWAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more ! g8 L. e( s+ o+ Kopposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. - o# x5 ^$ d! \Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the ) s4 B7 x* B* b, [7 EJNTF for use in CONOPS validation, missile defense program design verification, & S' o% V9 X$ `; t' Gvalidation and accreditation, and support CinC/Allied wargames and ( l* a2 Z9 M+ Y! b: dassessments. : m( Y- j- ?# _+ P& f! X3 `8 ?. h3 K" {Warhead A weapon, usually thermonuclear, contained as the payload of a missile. $ a# q6 z' o. O6 NWarhead 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 1 L q9 E' z7 ecomponents. $ I- t; I* O( D" @* M! d/ @8 aWARM Wartime Reserve Modes. 5 i$ [3 F" A. m6 \7 r Y$ l6 VWarning of Attack A warning to national policymakers that an adversary is not only preparing its 1 s3 X9 H# E. V0 Larmed forces for war, but intends to launch an attack in the near future. $ ]; E* V; R; Y& KWarning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). ; M( D0 ?0 I$ O8 \5 WWARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if 2 g4 |8 _4 [- x1 X: w8 P5 xknown in advance. Wartime reserve modes are deliberately held in reserve for $ H+ E) ?0 k' s; N* \$ i. nwartime or emergency use and seldom, if ever, applied or intercepted prior to 4 @: e' u: D3 E; E8 Wsuch use. WAS Wide Area Sensor. 4 n) _) {" |6 d7 F: j' ]WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 ( {# @1 d: o+ l7 c4 e4 V& J/ mWASHDC Washington, District of Columbia. 1 G- u- T0 p" hWastage (Max) The maximum number of defense weapons which, when used, will be ineffective # d3 U: L0 G/ h4 X6 Qin contributing to the defeat of the offense. Watch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs $ o7 e6 D. ~% l! o. a: Ato watchfulness without raising DEFCON. WATS Wide Area Telephone System. ( ?5 A y! p6 HWAVE Wideband Angular Vibration Experiment. ! K7 G0 |+ u& P# \7 I, EWavelength The distance between two points having the same phase in two consecutive # E$ d ~/ X" v, y& }9 Lcycles of a periodic wave, along a line in the direction of propagation. WB Wideband. WBM Weapons Battle Manager(s). , J) q, j+ R# p7 }& O1 P8 O: nWBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. # z- S8 S* X9 g0 {4 v% yWCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. 0 G$ H& I% Y; b3 z9 K, d, j+ ?WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be ) S2 I0 [3 b. Q( A- @launched.