航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 ! d% c# R' L8 |0 q3 z F$ j' u& dTheater Missile Defense Council ' r k7 X8 o7 i3 ^1 u(TMDC) A consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for $ \% b$ C9 P( p- F2 ^( u. e/ b4 bAcquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents 0 X8 T2 B) ~. O: o- Nand Program Managers. Theater High Altitude Area Defense System # h' x1 V+ W4 {! G9 d) ~; o(THAAD) A ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as * g/ N- n$ P& c0 s- VPATRIOT. " N; }& k% T2 B _2 ^1 _' E+ \Theater Missile : e/ G* ?! @5 f(TM) 1 c( ]; Q# P ~ @. A$ A* mA 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 * b2 h" R8 n* T1 g! Moutside the continental United States against attack from short-range, ! l! O, L: y" d3 }intermediate-range, or medium-range ballistic missiles. Theater Missile . ]9 t+ I: D. _# X, `$ ]; mDefense Ground- 3 P8 y3 t' b F5 t+ d2 }/ l& s2 S/ ^Based Radar (TMD-GBR) $ e* x+ M1 w/ f" kA ground-based, air transportable sensor that provides search, tracking and 7 P! Z5 r! D& \0 [/ Jdiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. % R, _" m6 o. ]* yTheater Missile Defense Initiative (TMDI) An initiative under which all DoD theater and tactical missile defense activities are carried out. Section 231 of the National Defense Act for Fiscal Year 1993 (Public Law 102–484) directed establishment of a TMDI office within the DoD. ) C+ V; r! }7 C. A8 FTHEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of ) X* O! L2 d# |thermal energy received per unit area at a specified distance is generally : V# ]- `( i+ r1 y6 eexpressed in terms of calories per square centimeter. + A: A: t0 c! T+ P0 I) @$ H* eThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. . s# m# c* n% z5 ?4 ]Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. Thermal 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 ( A' q8 s; O4 \fireball as a consequence of its very high temperature; it consists essentially of $ S. D1 P3 O3 e- N7 ]6 G% zultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, emitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the absorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated . a, |4 R1 N' O5 b7 Q% }region) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T . C/ z0 @0 O. ]/ W+ J4 q299 Thermosphere 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 at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the & j4 ]; ^! K& Iexosphere and most or all of the ionosphere. ' g) t: x2 P4 s, A( x# Q$ bThreat Characterization $ n$ Y: `, p- [* W# C) NAn assessment of the nature, magnitude and intent of an attack in progress. & G: V- Y* K1 S* V: v( F4 S1 rThreat Corridor - S+ B+ e5 n9 m0 E* ^ E(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 ( k, z1 E8 I- b+ C: b4 o* ntrajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive " _' x3 B) ~5 R' E) }; s- b, ~2 Jsystems and architectures. 1 [) w+ [" f% l, F/ GThreshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance . K8 A: M* J" @2 S/ r3 ]) Fobjective. 5 N' r0 w/ t7 t% o- PThreshold Defense A defense strategy that concedes that the target can be destroyed at a price that is not prohibitive, but the presence of the defense is thought to require the " L& w0 @" i3 x, w/ O7 Ooffense to mount a relatively large and complex attack. / l, E: ]$ l; ?9 b* f- pThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. 6 x! S- [8 ]2 X( g2 M3 }; VThrusted Replicas (TREPS) Conical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. # w6 o. `1 {* P. PTIARA Tactical Intelligence and Related Activities. 9 k8 k- d3 D- f' I N$ _TIBS (1) Theater Information Broadcast Service. - L/ S8 V0 h% X* _(2) Tactical Information Broadcast System. * M% \/ b/ p# i+ L! s$ ~4 ](3) Theater Intelligence Broadcast System. 1 N& D% s1 s# C! N2 f6 A& m0 rTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. + e$ D9 F/ \9 `% n9 wTIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat & X) Q( ^. h4 p6 S9 R4 B(e.g., boost phase). ) }* h( u3 w9 Y$ F& hTiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. 8 t: ^5 k% \! OTIIAP Telecommunications and Information Infrastructure Assistance Program. " v, ]4 N+ n f+ `( S1 k; ~3 `TIL Technical Insertion Laboratory. ' ?" a! h$ U1 T/ ]TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T 300 5 E; M. e5 P+ nTime-Phased / r5 i- O5 B% | x! t8 Q" kForce and . w8 H" r3 C% n0 h* ?- Q; ZDeployment List ! w: C* F$ S; e0 D" W8 {& BAppendix 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. Time of Flight (Max) The maximum time for a booster or vehicle to perform its function from time of launch. ) d" H; S& `1 M) j# S: tTime on Station The time the sensor is in its operating position. + O- c/ S, k: E+ }Time Sensitive / q# k' L* l% vTargets Those target requiring immediate response because they pose (or will soon ' d) k; P" l0 j% |: `pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. . J4 E8 z( `9 _5 p* ]+ ZTIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) . a: W$ x. }- l: M- E1 P. W: t5 RTIRS Telemetry, Instrumentation and Range Safety 3 }8 h9 R$ b2 h6 VTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. 7 f& C* @) H6 D: [, zTitan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. 4 D1 B5 A/ D, ]/ k3 N+ O& iTLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). 1 M/ C8 W4 e0 L) j5 HTLDD Top Level Design Document. TLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army ; N# u, g$ x4 ^term). , @- r! K* n: X# NTMCC Test Monitor and Control Center. ( @# V: V% Q4 `5 K4 }# D; K1 \TMD See Theater Missile Defense. 1 w7 i% ]% k% J( \, F$ UTMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T ' z X" {" Z" g: Z y* w301 TMD C % Q$ f5 E9 y+ T* ]3 I Those assets that provide connectivity between and among Theater Ballistic $ u$ c( a ]: H2 N- m& h* MMissile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). $ G k* b f% L8 o3 f. N: E5 PTMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. 3 ]; R* p$ P- o1 M3 F i2 h! y, xTMDAS Theater Missile Defense Architecture Study. 6 @# K M6 X4 T6 n7 pTMDC Theater Missile Defense Council. # P# A9 f1 q0 h9 \% j5 T1 ~: FTMDE Test Measurement and Diagnostic Equipment (ILS term). : X& {' F! F4 K1 nTMDI 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. ) {, X& S S% }TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. Y: I# t P) m' U1 N+ cTNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. ' D$ F7 Y) O* ]' h/ a5 WTO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. TOAM Tactical Air Operations Module. TOC Tactical Operations Center. TOE Table of Organization and Equipment. TOF Time of Flight. " i' D% K6 k3 B0 K+ xTOI Track of Interest. TOIA Task Order Impact Analysis. . u6 ^- q: x! S I3 e! dTolerance The ability of a system to provide continuity of operation under various abnormal conditions. - L8 ]) {/ D( |; w4 yTOM 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. TOMP Task Order Management Plan. : G6 Q2 Y- D( p" x( S0 p8 XTOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. 2 G) z7 m* U$ ?* |" eTOOL Target of Opportunity Launch. TOP Task Order Plan. Top-Down Pertaining to an approach that starts with the highest-level component of a hierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down Design The process of designing a system by identifying its major components, 9 c5 Q- V- ^# f2 X8 d* N1 udecomposing them into their lower level components, and iterating until the desired level of detail is achieved. Top-Down 4 _0 X& j J9 _" m5 ETesting 0 _( q/ M- q% {/ [$ @The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power 8 E2 s6 W& ]# S8 a2 }. r( J3 Etechnology 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) * S) I; a/ l0 V. W2 xA DoD financial term, which expresses the value of the direct program for a given fiscal year. ( Z3 b: `2 c- x* ~" D' X/ d5 o; MTotal Quality Management 8 j9 h+ b9 D* i0 t(TQM) $ B6 |, E% w* \4 f5 DA management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. . K/ ?% [6 \# w8 r3 M, FTOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or / a R8 M! U9 T" ^: {+ L! ppossessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. ; z5 \1 r5 j0 _, `TPBM Terminal Phase Battle Manager. 4 N' \" M! C* P& g1 C* uTPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 303 / T! g6 c3 w; z7 n( o9 E9 |TPEC THAAD Performance Evaluation Center. $ [% i. a( G* ~4 D/ {TPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. 7 N" Q5 |4 Q8 p( yTPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. : E' W; ?1 |/ E7 H" xTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target 5 o! f. z0 `0 W- DPerformance Report. 6 F) X- j+ n/ w' Q1 ITPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. ( G& b2 k' Q7 f: \2 j5 P( E0 |" Q/ kTraceability (1) The characteristic of software systems or designs or architectures or . A2 a% q( ?1 Vdomain models that identifies and documents the derivation path + ?2 t5 x- W7 x" t0 Z(upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or # a, `$ Z1 P1 o4 ymore products having a predecessor-successor or master-subordinate 5 R/ W' h! J2 w% B+ Orelationship 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. ) N, M& I7 b( m5 c0 ?$ `(3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the earth. , i" u2 \3 \( t% r' H- _7 T- CTrack * n1 Q/ T+ p) \- pAssessment 5 \- I; x" @1 h5 J& W* Z; k% ]/ @The Track Assessment looks for anomalies in an object’s track data. An anomaly . t* n# J+ ^* j h" l0 Rin the track may indicate a hit. Track, Birth to & E7 R+ M# q4 @! o d0 R$ yDeath The maintenance of an associated track through all phases of flight (i.e., boost 9 m$ L& n: z" B: ~3 J0 j+ |% Vto reentry). ! d3 D' H+ l3 u) [Track Correlation The combining of track information for identification purposes, using all available - e% K1 l& y) t7 r5 S( \data. Track Extension This term usually applies to improvements in track estimates by use of new data. It is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). " J0 `7 E6 [: l% O! G6 ^$ V0 hMDA GLOSSARY, VER. 4.0 T 304 8 R* ~; J( f. eTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of the above. 4 m) Z/ k+ v) ^Track File-Track History A set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. v1 f' k! B% aTrack 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 , `2 C% \( B3 H: B& pby filtering. * L5 Q0 s/ t, q2 V. K4 {! ]Tracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and . `$ S6 o: q: g5 r5 {Pointing Once a target is detected, it must be followed or “tracked”. When the target is 8 _* f/ L" X; G) \2 F; g" isuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing 7 ~5 F; g: c- n/ E: O, I) ^are frequently integrated operations. Tracking Range (Max) 9 n8 [3 A3 o/ e& t/ ~* WThe maximum line of sight distance at which a sensor can maintain track of an object. Track Initiation The formation of the first or initial estimate for a sensor system of the state vector 4 Y6 d( J! q2 i3 E6 A7 {" b! Zof an object. The process typically requires observation from a number of ! U, ^( q8 y2 S. S* m# k% jframes. Track Production 6 z/ D& q1 ~* m! a, L6 [0 ~Area V; d# k6 G- g7 a- wAn area in which tracks are produced by one radar station. K5 W% W7 B/ S! U& GTrack 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. 4 @" P' _3 g, X+ s w0 T7 uTelling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. 2 x% l. I5 p6 v' gTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. ; c+ r" f9 P9 m! S. jTraffic Capability Maximum 9 x6 c8 o; g# ~# V. YThe maximum number of objects per unit time which the sensor system can 4 S9 k$ b, y+ Qmaintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high / @2 i2 P9 _1 \/ [; z( Rendoatmosphere. 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. Trajectory Histories Trajectory information on targets recorded over a period of time. 8 ^) {! p2 r" F; O" K7 ETRAK A data base management system (not an acronym). , u* i! R5 e4 ]3 }% P, ]+ NTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T : y7 j @; S- k305 $ L- f% ^0 f, Z) i1 RTRANSCOM [U.S.] Transportation Command, Scott AFB, IL. TRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to Production " P. n3 W8 d5 uA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a 5 G* ]; t% g: E) [process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) * W0 j' Y* K3 oTransmission ! S+ }! z) D! PSecurity (TRANSEC) , v J) N0 x9 j% o( s+ aThat 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 encountered when passing from subsonic to supersonic speeds and vice versa. 6 u4 h }9 o$ D! G; h; N) HTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. 8 @1 P, A5 O# DTrap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. Traveling Wave Tube (TWT) An electronic tube in which a stream of electrons interact continuously or 4 Y6 e% X8 n }, i' x, crepeatedly 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 ; J% D- s. B) ?0 r* N8 g8 Astream to the wave; the tube is used as an amplifier or oscillator at frequencies in / D7 ?3 b4 y9 Q6 V" @( ithe microwave region. 0 D7 _# _' ]! ZTraverse (1) To turn a weapon to the right or left on its mount. # c3 m2 f' C! }; a(2) A method of surveying in which lengths and directions of lines between 5 i6 `* _1 o% K% v6 @# `, f; _points on the earth are obtained by or from field measurements, and . t& K8 I' l! pused in determining positions of the points. : w3 K8 M2 X3 P }( x" c9 }8 T1 ?7 tTraverse Level That vertical displacement above low-level air defense systems, expressed both 0 b/ w) [1 c1 das a height and altitude, at which aircraft can cross the area. " x% k; x" u9 C" I0 ], h8 T# TTRB Tactical Review Board. % Z5 G, _& W/ c8 s5 N' kTRD Technical Requirements Document. * X3 E9 ]* E- ^: JTRE Tactical Receive Equipment. 7 B. s8 s) {8 ?TREA Transmit/Receive Element Array (THAAD). % |) ]* g) D# ^) `8 cTREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. ' ]+ B* m( R; v! O! T! b/ g' I8 jMDA GLOSSARY, VER. 4.0 T 306 TRG Threat Reference Guide. $ p+ C- ?0 X, p3 YTRI-TAC Tri-Service Tactical Digital Communications System. ; R4 \4 f5 t1 k( [$ y) d6 gTRIDENT Class of US ballistic missile submarines (USN term). ' ~( F/ r5 q9 M9 Y7 zTRIDENT I (C-4) US SLBM (USN term). - S/ M2 m4 A/ T* |6 STRIDENT II (D-5) US SLBM (USN term). $ A8 c3 X; t! t9 F3 zTRIM Toxic Reduction Investment and Management. ' p8 x3 [9 q( X* u$ B) BTRM Technical Reference Model. TRMP Test Resources Management Plan. 7 H. p6 P8 F: l) B' K! b" |$ G1 QTRN (1) Task Requirements Notice. (2) Test Requirements Notification. 9 _7 X9 o, h( Z4 I7 m# ]Trojan Horse A computer program with an apparently or actually useful function that contains + \) p; @0 W0 Aadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. . ^$ m3 X$ v7 n3 M) ATropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of ! F- A/ y1 w! w9 tabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the tropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to 4 i$ {* a r$ n: }$ \4 @7 l# Tthe tropopause, in which the temperature falls fairly regularly with increasing i Z0 c$ [- R' L- M, zaltitude, clouds form, convection is active, and mixing is continuous and more or less complete. 4 q; p: `+ \1 WTropospheric Scatter 7 _* u& I$ g( KThe propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. ( S- ?8 m: S$ XTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). 5 m9 i) P* f3 z* W0 R8 |(4) Technical Requirements Package. # D0 R' J% c! Y3 z4 e( _7 |TRPC Technology Readiness Planning Committee. ) s! |, p1 J/ K9 \ B3 FTRR Test Readiness Review. Trusted Computer 7 Y- Q) }" }* ^System/Software A system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. 7 N9 x: p9 W8 `0 e- h1 cTrusted Path A mechanism by which a person at a terminal can communicate directly with the 0 B. T7 Q2 K2 ]0 ]& d3 gTrusted Computing Base. This mechanism can only be activated by the person & c/ K& E D9 S/ o$ _of the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 307 ' `* d4 y" @& [: {- iTSA Technology Security Analysis. q- q( M) y! ~/ u2 xTSD Tactical Surveillance Demonstration. 9 n; l R9 p$ J. k! E: hTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. 8 ^& [) g6 S) e; VTSDE Tactical Surveillance Demonstration Enhancement. - k Q! P% E: m. T5 D* O' TTSEU Technology Seeker Evaluation Unit. + Y; d: [) j* t* F/ r7 E, E: zTsIAM Moscow’s Central Institute of Aviation Motors. 7 ~: ~( j O0 W; E5 ^7 h0 YTSM TRADOC System Manager. TSMA Theater of Strategic Military Action. TSP Target Support Plan. TSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. & c1 U) }5 k6 Q u! \TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. 6 ^' V) p, F1 E& L, S- p% ]TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. TTBM Terminal Tier Battle Manager. 7 C% d' A$ G3 i' t5 K4 ?$ wTTBT Threshold Test Ban Treaty. 0 h/ e% C$ o2 S5 A ?. tTTD&D Test Technology Development and Demonstration. A portion of the CTEIP ; F6 M* |6 x. d L3 Aprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). % D+ F; k! ?2 p/ g. Y3 CTTL Transistor-to-Transistor Logic. 4 c( T2 i+ n f6 eTTP Tactics, Techniques, and Procedures. 3 o+ j$ n6 r- U# Z9 q+ P$ lTTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T , g1 n6 F! m) {% `+ `/ P308 TTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. 4 k4 i; P) P$ ^TV Thrust Vectoring (rocker engineering term). : W6 Z1 o+ H' z' s( R' }+ B* {# ]TVC Thrust Vector Control. TVE Technology Validation Experiment. TVM Track-via-Missile. ) q. V0 K/ N4 G, K" [3 ?TVV Technology Validation Experiment. " g1 Q# H* }' A- a' J6 ~) yTW Tactical Warning. 9 X' F- ]& P) `1 R7 vTW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. TWG Technical Working Group. 7 A2 U# V* x$ B, {% ]TWS TOMAHAWK Weapons System (USN term). % p' U+ w7 u- B) G9 I+ ^TWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). $ O! _; X" J! UTY Then Year (PPBS term). # A; Q8 |$ [* fTY$M Then Year Dollars Millions. ' `7 A4 |7 h" s W: R' ~6 {4 c$ t! NType A - System Specification # w x: b; Y* Y5 G0 ?; V9 Y3 QStates all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission 8 o( z9 R; d4 Q' F* d7 s, m2 grequirements of the system as an entity. $ ^- ~1 z5 t( B5 V7 a- N; V \Type B - ; _1 @+ a8 p3 D* q7 `Development Specification States all necessary requirements in terms of performance. Essential physical 3 Q% M# S# r% r/ _1 gconstraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item ) M0 ]% p) A" k% pfunctional characteristics and the tests required to demonstrate achievement of those characteristics. Type C - Product Specification ( P/ F, N- `2 ]! H6 ?Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of items including computer programs. Typhoon Class of Soviet ballistic missile submarines. + }$ J! i$ p5 p% A" S; C$ mTyping The act of recognizing objects by measuring a set of observables, computing a " ]2 u* ~3 b+ k2 c. K4 dset of characteristics, and associating the characteristics with a specific class of 8 Z2 d; G# S& M5 K4 n0 V( Mobjects (i.e., SS-18, SS-24). " ]1 A; M1 F' q0 Y7 Y5 d4 H0 gMDA GLOSSARY, VER. 4.0 U 309 ' v, d n1 y/ s* U6 X. }U Uranium. U&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. U.S. (US) United States. 2 A! E9 m0 C) d7 Z, nU.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. ( d4 q- c" S: z3 y# n9 eUAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. ; u* u) L6 Z6 zUCAP UAV Combat Air Patrol. / F; ~; @5 e, r: K, N0 F* ^UCC Uniform Commercial Code (US legal term). & d4 ^8 n( H3 |2 z7 s4 ]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 - L: C6 M( e- `3 L- M' Land coordinating program requirements for testing MRTFB ranges, as well as the capabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), - U! s1 k4 O$ \. o( w$ a2) 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 " y/ g. C/ z/ `. p% H8 I5 i! aRange Commanders Council (RCC).

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UE Unit Equipment. 0 ?7 D" w5 N3 W" q' z2 T6 P+ o+ AUEME Unified Electro-Magnetic Effects. 4 y; Z# @4 _9 v, a' U! vUEWR Upgrade Early Warning Radar. ' I. N' {4 C8 c! GUF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. ( D$ c7 N+ C9 H# u. `+ jMDA GLOSSARY, VER. 4.0 U 310 r2 `* H1 L& D, h& SUFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. : i. c$ I3 |) _" u- D+ u4 R# KUGF Underground Facility. 6 g, _) N. Z3 _% b5 IUGS Unattended Ground Sensors. + i& f. d/ g; e& E8 e: }UGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. 8 K1 p' r5 Z6 o8 M, r1 \UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. 1 v: C% a* Q% q0 [/ r- T3 V7 UUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). 1 t. \+ D6 ?+ aULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. " ]% M5 a) I0 W, J$ X' yULTDS 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. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. 9 I- S9 S3 s# t8 D) cUNC United Nations Command. % P6 X4 W5 E/ @. \7 g$ tUnconventional Warfare 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, 1 ?& W$ c( T% G' B( _covert, or clandestine nature. . n$ Y2 W. x! _Unified Action 6 }% H1 ]$ S& s `& T. \$ RArmed Forces 0 R, k% p% w! [$ F2 Z: w5 aA publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or , U! g2 x M4 F, N! e% ?" dmore Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary - ~# c! F& t% {" V8 d8 f' e/ ~of Defense with the advice and assistance of the Joint Chiefs of Staff. - L6 }- p( q" V+ oMDA GLOSSARY, VER. 4.0 U % d% P& O ^6 T7 y) A d311 UNISYS UNISYS Corporation. 8 ]6 V* N: r1 p5 K0 d3 H4 x# lUnited States Army Space Command 7 W* {$ b0 b' b) m! V(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army ( Q2 i; H3 w6 K) ~9 Zelements of the SDS system. Located in Colorado Springs, CO. / a0 G" \8 m6 x7 M) }United States & Y) I, I t' c: v' T* A- ]Space Command (USSPACECOM) The unified command responsible for planning and conducting ballistic missile ) c; f" Q+ |+ e6 {defense. Located in Colorado Springs, CO. $ X- @1 i& _0 {United States , ^- j" J5 X3 iStrategic 2 ~; r* {% y# H) R' ?) C" o: |Command 4 _6 Y$ q# U- m1 T7 |3 [( I4 c- m(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic ' k# r$ _; u/ L7 d; R6 C( ]! p9 imissile offensive combat strikes. Located at Offutt AFB, NE. ' o1 V p( r8 M8 S- |2 HUnited States ' h! l2 n' d K& [Transportation Command (USTRANSCOM) The DoD unified command responsible for providing air, land, and sea # b5 m q ~/ G$ j- N) mtransportation 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 " a. h7 c+ q% |4 }, X8 l' T3 zterminal services, and commercial air, land, and sea transportation, including as % H2 Y2 @# p& W2 l8 j" X$ fneeded to support the deployment, employment, and sustainment of U.S. forces $ y7 j( C9 [0 E; f, Y, Hon 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 4 } j( v7 l' u1 }, eindistinguishable from a single object. & N! s4 J- I2 [+ {2 ]0 l( Z2 CUNSC United Nations Security Council. 4 l- _# ]5 |" tUnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. ! B3 t: B) {+ p! g5 @UPS Uninterruptible Power Source. 2 A5 c, y# c3 ~" _, ^8 U4 Y$ [UQT Unit Qualification Training (ILS term). # ?7 M$ A8 S+ [' w3 zURIP University Research Initiative Support Program. : W) s" X% j: W/ h' yURL Uniform Resource Locator (internet protocol term). ) J6 _% @! }9 j+ [6 a, RURT Upgraded RTD. ) T5 j7 f; F( J! |, ?) r: C- gUS/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. 5 {* f- Q& {, E0 Y) p$ x5 b0 aUSAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. % Q5 ]/ ]& d! \: n o2 I2 W& AMDA GLOSSARY, VER. 4.0 U / ~$ l; x. M( F! x. j312 USACE United States Army Corps of Engineers. 3 ]$ D( k: C4 T4 l* d6 sUSACOM United States Atlantic Command, Norfolk, VA. a7 c/ h1 j9 t* x% E! rUSAF United States Air Force. 2 u: g' Q& L. U" v+ m' n- M. rUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF 7 Z' c0 J7 r# \1 g. N9 `+ tSystems Command /SSD. USAF/OTEC U.S. Air Force Operational Test and Evaluation Center. 9 e) k, }6 {3 [# w! }! i$ T- DUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. * g+ @& B8 R: f7 e& u& M" `USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. USAFLANT U.S. Air Force, U.S. Atlantic Command. * P" v- f8 A6 Q! `* x7 sUSAKA U.S. Army Kwajalein Atoll. 2 m8 l& H: {9 x# s+ XUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. 2 x! a# x+ r% l1 s4 RUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. 2 H2 n' Y4 A" U- {' h- S3 ]USARCENT U.S. Army Forces, U.S. Central Command. 4 \# ~3 l* r6 {9 Z v2 _% R; O I% JUSAREUR U.S. Army Forces, U.S. European Command. % o8 q, H/ G3 vUSARLANT U.S. Army Forces, U.S. Atlantic Command. ! `0 w7 a# { c7 {: I+ g; ~$ W+ dUSARPAC 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 : k, ]5 H4 j$ E- T2 T7 J# Z) ^4 HUSATECOM U.S. Army Test and Evaluation Command. 5 O3 d2 q. `. A j# Z5 ]USATRADOC U.S. Army Training and Doctrine Command. 6 p) v/ a- N3 _) ~3 p D8 NUSB Upgraded SBD. USC U.S. Code. , A0 S) m# B8 V: o; t7 i) nUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 - b+ ]# N- I" L* c! o+ m0 KUSCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. 3 ]! I; a+ F" w; m5 S9 ?USCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. . g$ {! W' X2 @! A& M9 L* T0 XUSCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. & c5 Z; V: ^$ b7 b u( j+ [9 I0 |USD Under Secretary of Defense. / l- s# T: o* d8 D6 _USD(A&T) Undersecretary of Defense (Acquisition and Technology). / I" \* C" j) o, V: tUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. 9 q2 O2 u) N j) v8 e6 B3 wUSD(P) Under Secretary of Defense for Policy. S( _/ E5 G, d0 v. a3 WUSDA United States Department of Agriculture. + t6 X* f, K' I0 W7 {USDAO U.S. Defense Attaché Office. / K2 u1 _! r: G0 D* H. sUSDELMC U.S. Delegation to the NATO Military Committee. 5 T+ W- r1 r5 @% \3 WUSDR&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 * |% b: X6 S& W0 eoperate it successfully and easily. $ X2 R& |6 W* C+ zUser Operational Evaluation System (UOES) Prototypical system developed and tested as part of the early phases of the ! T1 u) o* l* v5 Z! C4 {6 tdevelopment process. A UOES has two objectives: (1) testing, evaluation, and ( p) ]$ t+ o# c8 U+ V' _training for a system proceeding through the normal acquisition process; and (2) 8 ~% |4 L/ [5 t# ncontingency 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. ! v7 X) E% ]* K( b5 f/ QUSFK/CFC CSFK Combined Forces Command. USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U " i2 H$ X: R6 q2 ]( F( F314 p+ s# s( O& LUSLANTCOM United States Atlantic Command (Now see USACOM). & C: }. S; m4 V5 j5 c; ^; PUSLANTFLT U.S. Atlantic Fleet. USMAR- 2 ]- ~# A0 E; u, A1 G- { ` XFORCENT : y g+ ^: E9 HU.S. Marine Component, U.S. Central Command. D) u8 B1 @% GUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. + J [) _8 r. i9 H5 jUSMC United States Marine Corps. 1 f8 B8 p1 v3 i+ F: dUSMCR United States Marine Corps Reserve. 7 ~' d; `9 g$ M* yUSMILREP U.S. Military Representative. 9 f& r& ]1 |! X& |6 i2 d' g5 Z, B9 eUSN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. , W6 k8 q2 B% p; s" H# ?' Y7 EUSNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. , u$ u# c" }/ F+ ?5 `! ~8 U/ @USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. C! u: r7 G, F/ [USPACAF U.S. Air Forces, U.S. Pacific Command. / z, I0 c7 `4 T U+ CUSPACFLT US Pacific Fleet. ; E0 C0 ]5 |& P% \% u0 V9 F4 cUSPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). 9 f+ ~3 R# E4 MUSSC United States Space Command. & g w" F" W: ?$ ?. ?: V2 B1 iUSSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. ; k; b# \! r, z5 I3 o8 v4 vUSSPACECOM See United States Space Command. USSS United States Secret Service. & R) q/ i5 n+ s6 fUSSTRATCOM See United States Strategic Command. 8 m9 e9 J% I, u1 X, e6 }USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. ; a' v( s0 G, A# u) RUT Universal Time. 1 k, \3 L6 J5 \$ G) f$ J8 iUTC Unit Type Code. 6 t ~/ D( f' S! MMDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. 3 R7 b( n3 h6 @7 E% {: ~UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. 4 [) _ ?2 `( G9 N }UV Electro- . @6 e* ]5 i* j, SOptics Technologies/techniques employed by optical sensors in the wavelength * R! x! i* m+ f1 @$ Vspectrum shorter than visible (e.g., less than 4,000 A). 3 H7 p7 n! X/ A% g, f; vUVPI Ultraviolet Plume Instrument. ) }3 `; P& u( O8 }+ KUW Unconventional Warfare. 9 e+ t! i' E a& c- I/ F+ R vMDA GLOSSARY, VER. 4.0 V * J8 m$ ^! s @/ B316 + C. f) ?6 C" O- `1 GV Volt. ; J/ P% J S+ eV&H Vulnerability and Hardening. V&V Verification and Validation. (See Verification, Validation, and IV&V.) V/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 world processes and are realistically sensitive to change in the environment, tactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. : ]: j/ K9 x+ I" a* N1 DVAR 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 factor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. $ y& `3 S/ P6 a6 l. FVBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. 1 g4 @" N+ {. O' R4 y3 K JVCRM Verification Cross Reference Matrix. VCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. VDU Visual Display Unit. & s$ u/ `7 E% b! Z+ e1 aVE 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, # G/ a7 z+ J" O5 \! O& N6 hcalculations, logic, and interactions of the system under evaluation. r' f' J: K- J/ ^; o(2) The process of evaluating a system or component during or at the end ) I: |- U# v0 _9 g2 Rof the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. 7 N. C, [- [: z" l% P) D6 M" hVFR Visual Flight Rules. 6 X2 @+ A N/ Y. v7 rVGA Video Graphics Array (Telecomm/Computer term). - }7 c' a2 Q, ?3 BVHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 6 E* d* Y+ e) Q0 {1 o9 Z317 $ W8 F0 u3 Q4 Y2 t# q3 J1 eVIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D . j, n3 T1 C6 \, x/ |# JExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional . U) w6 C" P: X5 T$ D* S1 Scircuitry and commercial components. Project also demonstrates VIRGIL, a gimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and # J# j5 p: O7 s: r3 u# Rprecision-tracked with the ANTE processor. + g4 h6 J5 ^' b) ~VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. ! U- z1 `7 x# Q5 d$ ]VIS Visible. 1 E6 q0 |/ W+ G0 a/ _3 q) D }VIS/UV Visible/Ultraviolet. Visibility Range (or Visibility) 7 t. R) J5 X4 A+ h; C" NThe horizontal distance (in kilometers or miles) at which a large dark object can - {$ K& Y7 N0 j) _just be seen against the horizon’s sky in daylight. The visibility is related to the G- l8 A& Z4 o. M# s0 Fclarity of the atmosphere ranging from 170 miles (280 kilometers) for an exceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze ; G/ ^+ a7 a! M+ T( I# Yor fog. The visibility on an average clear day is taken to be 12 miles (19 ! E4 j" f8 F" s& G0 A: e8 xkilometers). 9 T$ ^' T1 d# b% ?, bVisible Electro- 4 I# ` q0 ?# s2 F+ X JOptics ! F/ \# ?6 | F+ F* q; `# u/ I3 vTechnologies/techniques employed by optical sensors in the visible portion of " i- ^4 X6 n: x+ J6 b( n. } s/ Kthe wavelength spectrum. ' u2 w0 d, y9 [+ X. eVLAR Vertical Launch and Recovery (UAV JPO term). 3 b; N" q7 _* r$ ?* B) @VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. . H+ h8 C6 w* I6 V. U# WVLSI Very Large Scale Integration. - \+ V$ ]3 P6 j! [7 Z9 VVLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. % z/ x! i& B: d4 _1 _VME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). 4 T% W) l( Z1 j2 Q6 lVOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. 3 U5 C4 Q0 E4 BVTC Video Teleconference. , r) m) U) B& a4 a, S2 p9 H6 vVTOL Vertical Takeoff and Landing [aircraft]. 6 Q( t# C& E, W( O8 zVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 318 5 y; l6 A- ^. p& O6 ZVulcan UK bomber. * h/ z! d8 u' d8 L5 V- eVV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W 319 9 u2 R3 }. f. E+ vW/ With. w/o Without. ; O% g5 p+ H) } R2 n) K; MW/TD Warning/Threat Detection. 7 A0 J/ L& x. D9 X+ H9 LWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. ) @2 Q2 K2 X8 e. ]. jWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area . M; c/ `7 W h0 V0 G6 D! KMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). 1 p' r- Q& s3 |WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more ! o, t+ c6 P8 w2 o, X2 ropposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the " |% R4 s2 U) B- K- |" TJNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. " `4 W8 p6 c/ ^% E$ F/ Q, l7 K5 ^Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, : u- }1 \ O, Q$ d. ^; J9 Hairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related , f/ O4 o( V% u# B' @' Wcomponents. 1 X3 _; A1 U' p/ v4 s" J; aWARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. 2 K9 @7 Y H, T/ _& n! `WARSIM Warfighter Simulation (US Army term). 0 F, z& U d" d7 PWARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve 6 I9 Y, |8 K0 f# P7 w( E7 WModes (WARM) ) g( b* `9 _' B' @Characteristics and operating procedures of sensor, communications, navigation . Y+ @+ W' {/ T! K4 A paids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing % v% x: Q# J4 }9 ~& Z( j6 t3 {" Ccommanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for . m+ {& g& K/ Owartime or emergency use and seldom, if ever, applied or intercepted prior to * A5 g3 K; V- ^$ `. `$ usuch use. $ e* x" l9 ^2 u$ e% m0 s4 dWAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 1 w! g; a. x- Q) q) y- i: _320 1 d* N8 M2 B) e" n+ n) f5 DWASHDC Washington, District of Columbia. 9 Y! Y, B$ V& XWastage (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. 5 R$ } S: ]* I7 ?WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. * p! Z6 M! x; w c4 ]Wavelength The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation. WB Wideband. 8 p u$ R; u7 e7 rWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). " j$ Y! {% k1 V# B$ xWCP (1) Weapon Control Processor. (2) Weapon Control Platform. $ }) r% U0 w, N% }4 b: XWCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.