航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 Theater Missile , Q$ a/ E7 V* @* d* V' r7 BDefense Council 4 k- c& B: Z" {6 ^(TMDC) A 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 / L* E f$ a4 B' ieach applicable Service Program Executive Officer, and TMD Executive Agents / x @7 ]7 h' x; _, X- n9 @and Program Managers. ! M/ c% n# y8 Q2 XTheater High 0 O' R) P- X. {) a bAltitude Area Defense System ?& B9 }# C/ I. c5 Z. c# D) M(THAAD) $ e! v9 o7 N: @9 X mA ground-based, air transportable interceptor system that will provide wide area / v7 d9 V3 `" F ^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 PATRIOT. : F6 b# J% h& n- ETheater Missile (TM) & p+ U! ]2 C( F* g3 q4 xA 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) ' m5 c1 r" g* Z8 V8 jOBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. 3 z+ f# |0 P3 K0 VTheater Missile 1 o2 ~, A# Y5 n0 Q( sDefense Ground- ! M# c q) \/ T0 X3 g- vBased Radar (TMD-GBR) 0 N; o7 O0 c5 n9 o7 ^ ~A ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. R4 }& i, K/ gTheater Missile 8 J* ^7 z1 B2 B& [3 G/ E( KDefense Initiative / p. I, s) a6 u9 J(TMDI) An initiative under which all DoD theater and tactical missile defense activities are 4 f% _+ \3 Q& Scarried out. Section 231 of the National Defense Act for Fiscal Year 1993 ; ?4 \0 C, K: q7 ]$ V(Public Law 102–484) directed establishment of a TMDI office within the DoD. 1 C+ ?% q' N# w4 P7 j: h! ?+ u8 k8 cTHEL Tactical High Energy Laser. 3 C% v4 F X" IThermal 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. 2 i c- D( `! b' ~2 u6 UThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or 8 u: J3 c# K" U: b6 hreflected from the objects, which are imaged. ! T! `# |$ w2 Q* {Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. % G- k) N, z! z i* eThermal Management % _$ {! @& H$ M( s2 rTechnologies/techniques associated with the control and management of ( w5 `$ H& |8 U, f {/ A3 Uthermal energy, its generation, dissipation, and recovery. # |5 E1 b# e7 p& V k9 [3 ^* I' @/ L2 \Thermal Radiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of 6 i' j5 D/ _/ V* [! Bultraviolet, visible, and infrared radiations. ! E6 q: p6 g l4 S& ]: hThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, " R% ?+ r+ t% z/ l/ }# z& K1 @3 eemitted 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 6 p" n1 Z% x$ I7 U2 o% l1 Xabsorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated ( D* }1 u1 v$ hregion) which then emits thermal radiation. (See X-Rays.) * n1 W" R' X0 kMDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; & b& \, T) _9 g' B6 R# g, wit 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 * Y8 i4 ?3 ?" | b# e. Oexosphere and most or all of the ionosphere. - x1 |6 @- ]% c5 V. FThreat Characterization . o! e$ S: s! c; _ Y# G' yAn assessment of the nature, magnitude and intent of an attack in progress. 6 q: X) ^8 h; G N ~1 y6 N" OThreat Corridor 3 k v1 @, ^" l+ }(Threat Tube) $ }2 ^; m6 y+ y8 I+ B3 }A tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. 8 v! y2 E+ ?" i/ \% ?4 ?1 J$ ]Threshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. . W) T& E6 d2 I0 }$ D9 eThreshold Defense , j6 d1 x; _! z2 F( n ]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 9 Z' S9 a! w8 K' \+ Poffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted 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 7 m, p3 T: A4 [) G5 |* x" ^phase. ( v. h5 n& {# _7 hTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. * m) L- I" _$ [3 B' c; `6 WTIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. ! \" y( z, f9 r3 w- x: _0 G7 H(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. / H- c( C5 X1 a& i8 O" v+ H; ATier An integrated set of SDS elements that address a particular phase of the threat (e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. 6 M. y' O- ^/ W' O, P5 lTIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. 4 a+ A" C% W" n. x4 b" UTIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T $ m- {* |; w/ l2 `. c300 3 n( ~7 ]$ N1 M. \8 ^2 DTime-Phased Force and Deployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual units required to support the operation plan and indicates origin and ports of ~+ |) a9 b, i2 f. s" A% |debarkation or ocean area. 6 G( `* v0 H: E0 FTime of Flight 3 f% T, m# c/ m: [ i0 `, Q4 w' o(Max) The maximum time for a booster or vehicle to perform its function from time of launch. 6 @' Q- P* o* u5 ?: h; O' Y) TTime on Station The time the sensor is in its operating position. ( ?7 F) q# K" m. V) x- h/ U* ~Time Sensitive Targets Those target requiring immediate response because they pose (or will soon pose) a clear and present danger to friendly forces or are highly lucrative, 6 N0 |9 y% k1 xfleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. ( K. U. s9 ?" |- q* Y) p6 rTIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. , B; }3 v0 d5 r7 M& w) T3 O" zTIP TOPAZ International Program. ! X- \. U0 H0 V) E" CTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. & n% O8 |2 O: `2 G& k7 \TIWG Test Integration Working Group. (U.S. Army) 2 I& v4 a/ e! M$ K7 d7 uTL Team Leader. TLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. TLV Target Launch Vehicle. ) J2 z) o. `( [& e8 n" N' W) [TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). $ C' [0 }8 X0 f( g5 v! S) RTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. 1 g' w! B- V O7 `! P! w3 wTMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 5 ?7 O* f5 s2 [* G, a! l4 } |301 TMD C & a3 [8 V! R& k% }2 @3 I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. . o8 @+ A/ x9 k) Q4 l. ETMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). ! M- E& N3 \5 P) @7 Q) s. hTMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. / Z3 r9 g. j* xTMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. / D8 a. Z2 q) V, `0 I7 @; w8 \TMDSE Theater Missile Defense System Exerciser. 5 L5 H* U% B# ]TMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. ' G& T- `- i, E% ETN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. & k. ~7 A* c( D$ h) g: K3 X. ]- m9 LTO (1) Task Order. (2) Technical Order. 7 y7 s6 k' U% l2 g/ w0 }TOA Total Obligation Authority. & W# ^! v- }, y1 VTOAM Tactical Air Operations Module. # \3 V( H( \" @* b' K$ sTOC Tactical Operations Center. TOE Table of Organization and Equipment. k- z2 U6 g$ P; }TOF Time of Flight. TOI Track of Interest. " b" i. ?) i( ~0 F/ t* p4 |TOIA Task Order Impact Analysis. 3 Z+ o2 j& M+ e {Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. + i7 A3 z% F! ~5 M* X$ nTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 0 O: [ L- O$ R ~, u5 G( }7 aTOMD Task Radar Management Details. " R7 v( S) ~, |! ^8 j) ^5 UTOMP Task Order Management Plan. / t P+ y3 [2 w& lTOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. TOP Task Order Plan. 6 a0 K2 W& W2 f' }9 x9 E3 OTop-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. 2 h; [2 l" u( D2 STop-Down Design The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the 0 s$ z( F* @4 i1 edesired level of detail is achieved. Top-Down Testing 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 technology to U.S. BMD applications. / [! K" e" U. H: l: W: }8 {5 DTOR Terms of Reference. * P6 P5 l3 E0 |+ G8 o2 }TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. 5 P( y/ \" K( I5 z0 o% {TOT Time on Target ; y4 n! b5 L3 F. Q) mTotal Obligation 4 _2 T. Q; G0 L- ~Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given ( l* L0 G: R5 S6 lfiscal year. Total Quality e( {7 U( D# U( S: NManagement (TQM) + p" U6 R" p: W* w [$ A) ]" pA management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System % E1 Q$ W1 I2 b5 LTOVS TRIOS Operational Vertical Sounder. 8 `# m- ?5 b" K/ W& t& Z) PToxicity The kind and amount of poison or toxic produced by a microorganism, or ; l ?! z/ o( a- s5 cpossessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. ; C. v6 I+ i+ W2 V: \TPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 303 2 q. \1 N' }% T8 n# ZTPEC THAAD Performance Evaluation Center. 4 `4 B/ I" P+ [1 r# tTPEM Technology Program Element Manager (SDIO/MDA term). * u( f4 @/ t5 G3 ]* n7 ^2 \% s/ zTPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. ( `8 i4 O8 y2 V# OTPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. " a4 [* Z8 L3 G6 X) WTPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office 7 B1 N. |9 @, R$ ~9 CTPP Test Procedure Plan. ; ~' ?/ G9 F F* f* G8 \' Z) CTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target + u+ P" X# k$ W4 N, M# sPerformance Report. 4 J* t4 |8 n4 R# S" I9 L& ~2 n+ J! lTPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. ! t. m/ z9 c& [: F4 iTraceability (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 constraints. 1 N+ f% s% c! _0 F(2) The degree to which a relationship can be established between two or # M! J+ w! R7 _( } Dmore 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. ) o% t* b" W) ~6 O9 w m: W(2) To display or record the successive positions of a moving object. + |/ g1 w1 ]0 r& ~5 ](3) To lock onto a point of radiation and obtain guidance from. . @: x4 c8 X% G( r d(4) To keep a gun properly aimed, or to point continuously a target locating : C2 F2 n5 X6 finstrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the & m1 u" ^1 t3 N: C& k& E; gearth. Track 8 p; ^) Y$ J% d0 ^& NAssessment The Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. " H; c/ z. V: N3 ^! `Track, Birth to ) y3 L1 o. E/ z+ iDeath - z& h, ]& g. K" ]$ |The maintenance of an associated track through all phases of flight (i.e., boost to reentry). 0 G* [8 K5 @: c0 E7 GTrack Correlation The combining of track information for identification purposes, using all available data. & I" e& C3 v G9 y! UTrack Extension This term usually applies to improvements in track estimates by use of new data. $ @- N) {' ~) h' _3 UIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). ; W- B' ]" B# g' Q EMDA GLOSSARY, VER. 4.0 T U# A& a7 M/ h; D; y304 & q! `0 Y3 l: _Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of * g- \+ Z! c! U6 C' x" Bthe above. Track File-Track History $ `$ t0 T5 T3 J9 b( RA set of individual track reports on a particular object, which taken together ; e7 \) S* I7 T7 }7 R8 Eproduce useful approximation of that object's future position in space. ' W" e6 Y/ @2 f3 zTrack Formation The process of determining the track or tracks of detected objects. It is usually a : C# y [- e' fthree-step process of data association, track initialization, and track improvement by filtering. Tracking The act of generating and maintaining a time history of an object's position and & G# U* W1 e9 |any other features of interest. Tracking and Pointing / t; g+ T" N# I' E3 e# t. d8 TOnce 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 (Max) The 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 of an object. The process typically requires observation from a number of $ l7 Z; X* b+ {- D g+ Oframes. ; N; I2 {1 f/ @6 Q& K2 oTrack Production / i( G2 t1 |/ |/ _6 E8 SArea An area in which tracks are produced by one radar station. * _2 V- n$ i4 _6 s; {: a) ]Track Symbology Symbols used to display tracks on a data console or other display device. 1 i9 X) n2 M, L7 m$ i" E! C! k0 ETrack Telling The process of communicating air surveillance and tactical data information ' \8 N6 X4 H" S jbetween command and control systems or between facilities within the systems. Telling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. : S, |# S; n8 A3 ]* B! \ N, p: e# fTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability & K- Y1 H+ {& e% ^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 endoatmosphere. 6 N* r, U7 g1 k4 T- Z4 p- q2 vTrain Threat geometry with objects placed in a line (string) along the velocity vector of # F0 n9 v! F! U( a& c. Rreentry. Trajectory The curve described by an object moving through space. 9 b2 R1 j1 c* q8 ]Trajectory ; a8 I+ _( s4 ~& h A7 J/ gHistories 9 S' k/ m! m- o: L( FTrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T ' n: K; T" T. T/ I) W( t. _305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. + d4 a) C" p1 v, ~; [TRANSEC Transmission Security. ' b7 x6 g) Y( ~, @" E7 U# W) r, UTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to Production A risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) 8 c4 @) p/ S+ u5 S. [- |' WTransmission / {9 B5 A& o% J4 b$ iSecurity . d" `, r3 B# L9 `6 h* l* w. U(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 & W0 N7 A" K1 ^. o" o. a' Aspeed of the fluid is subsonic in some places and supersonic in others. This is * c* W7 `$ V+ nencountered when passing from subsonic to supersonic speeds and vice versa. # }4 @& ~# P. U; R# P$ C/ N# o' oTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. 9 d, N, m }& w9 |+ mTRAP Tactical Receiver and Related Applications. 1 I3 Y7 P9 J4 Q Y3 vTrap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. Traveling Wave ) O' o# y! \% S7 }5 w: nTube (TWT) An electronic tube in which a stream of electrons interact continuously or * D# f- f4 {- j |repeatedly with a guided electromagnetic wave moving substantially in synchronism with it, in such a way that there is a net transfer of energy from the stream to the wave; the tube is used as an amplifier or oscillator at frequencies in 3 a9 @' i# X% ], {% \the microwave region. Traverse (1) To turn a weapon to the right or left on its mount. # k/ _) K* ]7 M' W2 ^7 L( `(2) A method of surveying in which lengths and directions of lines between 8 @& \! x# q" mpoints on the earth are obtained by or from field measurements, and used in determining positions of the points. 5 D8 J' B; \ D. y: lTraverse Level That vertical displacement above low-level air defense systems, expressed both " U! w! H8 \; e, I( Pas a height and altitude, at which aircraft can cross the area. 3 Z6 f# P: ]4 ?7 _TRB Tactical Review Board. ' J9 d: n3 D; @/ K% @7 T' oTRD Technical Requirements Document. & V' ` d- G8 c# E3 V9 HTRE Tactical Receive Equipment. " D) t8 z4 a& lTREA Transmit/Receive Element Array (THAAD). ( [/ ]$ A$ z& o$ L ?, r* YTREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. + P- _4 b0 j [8 Y6 _9 {MDA GLOSSARY, VER. 4.0 T 306 1 O' c" Q% @/ u) y$ Y% h' a; VTRG Threat Reference Guide. 2 f( r8 E( ~$ W9 U0 ], u- @4 Q+ h3 R+ DTRI-TAC Tri-Service Tactical Digital Communications System. # N! h2 a2 T! ?- ~$ `TRIDENT Class of US ballistic missile submarines (USN term). , Q' ~ J( W; w6 l7 D N# NTRIDENT I (C-4) US SLBM (USN term). / y/ r1 _; _ z- x% ^+ ZTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. # U1 C+ p6 `- z: D: BTRM Technical Reference Model. TRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. 6 `7 Q5 o1 D& n1 n0 i1 {. rTrojan Horse A computer program with an apparently or actually useful function that contains : R! W& `; k4 ?, `- I2 t; Kadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission ( D0 d' I8 `& ?( f8 V7 gperformance. TROPO Tropospheric Scatter. Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the " f+ V8 J& R- z) T9 R. n/ r- rtropics. (See Stratosphere, Troposphere.) 6 {- Y9 Y( q4 A8 p7 g! L& [8 W) JTroposphere The region of the atmosphere, immediately above the earth's surface and up to ! }( J m& K o3 t& n4 nthe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or , c8 Q$ \7 a+ [) G9 E1 V6 rless complete. & A2 p, a6 ?' |8 @) ]Tropospheric Scatter ! I5 E6 B" U- r$ u, U2 HThe propagation of electromagnetic waves by scattering as a result of * A, j& V1 H+ s rirregularities in the physical properties of the troposphere. 6 J3 n8 x: E3 C/ u6 \3 J9 S- u7 X4 K7 d) STRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). 2 L5 h0 B Y T/ g# n(4) Technical Requirements Package. 8 @& ?6 l( G4 U I* p- n; F5 p. E% TTRPC Technology Readiness Planning Committee. TRR Test Readiness Review. 6 K8 b$ L. M6 h; `4 m0 ~6 T. o6 zTrusted 2 ~1 @, B- q0 U: j0 s& bComputer System/Software ; ` u- z6 s% g$ F/ R9 t! @A system or its software that employs sufficient hardware and software integrity / y! R% A9 v+ t+ J% imeasures to allow its use for processing sensitive or classified information. ( u. D6 [ ]- ^/ _) ?Trusted Path A mechanism by which a person at a terminal can communicate directly with the Trusted Computing Base. This mechanism can only be activated by the person * o: j! O/ s$ i7 M! G/ ~; E) Z- Uof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. 7 Z) p/ c' Q, L$ MTS (1) Terminal Service. (2) Top Secret. - n0 m! f! r, w* J8 w" k4 ]# r. K* cMDA GLOSSARY, VER. 4.0 T : E3 g# A. C9 I& n307 TSA Technology Security Analysis. $ X2 w# Z/ \+ w- @4 f! g/ c! [3 }* DTSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). : z4 L# Q2 Y9 F/ {9 {6 \TSD Tactical Surveillance Demonstration. TSDE Tactical Surveillance Demonstration Enhancement. 8 l; M9 B( i; j& z: e0 X6 tTSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. TSMA Theater of Strategic Military Action. TSP Target Support Plan. TSPI Time, Space, Position Information. 7 [2 J7 e P+ rTSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. 1 u3 v1 s4 q8 l+ @. aTT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. TTBM Terminal Tier Battle Manager. 3 D4 K# z; T* J; QTTBT Threshold Test Ban Treaty. / u7 T- Q( S3 s7 kTTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, which have significant potential for improving testing. ) A( y9 Y9 x: Q s/ M9 c3 n" wTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. ) X: e8 m; I6 {2 D& a, s) E' U/ eTTP Tactics, Techniques, and Procedures. ( a* B0 c! }# t' J! _4 p! } eTTSARB Technology Transfer and Security Assistance Review Board. 8 J! k* F. Q8 P% ^0 p& \TTT Test Technology Transfer. 7 v- @" R% X2 x) m+ p0 a; K TMDA GLOSSARY, VER. 4.0 T % U) }+ k3 R8 Z308 TTV Technology Test Vehicle. # L4 Z% ]' E$ m% uTTY Teletype. ( o4 @6 e4 w; G7 U4 C( d- mTUG TRACE User Group. 9 @: N/ R+ y3 ^% ?% }6 |TV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. 5 u& ~- A9 X, n+ O6 ]6 v3 ^TVE Technology Validation Experiment. ) a) a' H7 ~9 x0 G/ G) h0 C7 ?1 VTVM Track-via-Missile. ! Q! U, ?, Y+ i7 R$ u3 `1 Y( y8 qTVV Technology Validation Experiment. 0 R. h4 y6 k1 S' |8 J: _TW Tactical Warning. $ N* P" n" H2 Y* KTW/AA See Tactical Warning/Attack Assessment. ; v/ s5 q( z: eTW/SD Tactical Warning and Space Defense. TWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. 6 F. y5 P ^" L, X" x# M: V$ DTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 3 J: @7 K6 j3 iTY Then Year (PPBS term). 8 k1 R6 ~/ M- h- D" s! T" w! xTY$M Then Year Dollars Millions. Type A - System 8 Y% R$ C) i- h; q' B/ USpecification 2 r6 ~, `0 f. b7 Z1 {- g3 S ^8 YStates all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission requirements of the system as an entity. - w' @* K. X" `Type B - Development Specification 4 ]7 x$ I( H' t& D$ B9 FStates all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the " \, X. @1 }) v- Jdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of those characteristics. ) c! ?# h7 a8 E) x6 UType C - Product Specification Product specifications are applicable to any item below the system level, and + h: j9 m& h z+ I. ^3 W4 Bmay be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) 0 a* l* F! ^0 W) h5 Z2 ~0 N1 frequirements. Type C specifications intended to be used for the procurement of items including computer programs. . F4 h& d3 I+ L" k5 GTyphoon Class of Soviet ballistic missile submarines. 0 n" p. R" a6 p- I: vTyping The act of recognizing objects by measuring a set of observables, computing a : j! h! S u4 jset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U ' Q# a/ C* J m" z# M( x309 U Uranium. U&S Unified and Specified [commands] (pre-1996 term). & W6 Q( }7 _7 D# k% }# t4 ^U.K (UK) United Kingdom. U.S. (US) United States. U.S. West U.S. West Incorporated. $ ]: p3 r0 V0 qU.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). % d: Z7 t0 q, O) F- G2 @8 UUAE United Arab Emirates. 4 R( ~8 \" ]5 w9 ?: W' N0 } IUAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. + z0 _. u. i8 }* |UCAP UAV Combat Air Patrol. , ^' V2 x& ~1 n0 ]$ _; o9 E/ Y# ZUCC Uniform Commercial Code (US legal term). - o O. @6 ~, k0 Z# X1 OUCP 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 & }2 l j5 b% J+ h1 z, Qand coordinating program requirements for testing MRTFB ranges, as well as the 1 D5 E/ w+ Y3 h# r7 _6 qcapabilities 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)), + M+ p: n* T; c2 y1 S4 l9 M$ q2 m2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. * {9 j( y) _- O# ]% S; _% t4 S/ CUEME Unified Electro-Magnetic Effects. 6 @ |. e" x/ M0 D) x4 x2 kUEWR Upgrade Early Warning Radar. 5 |* q; m7 a' G2 t8 q8 R, |* zUF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. & j( O0 Y) y r6 V8 G* R% kMDA GLOSSARY, VER. 4.0 U & T/ @5 A+ \2 e7 z4 y310 UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. UGF Underground Facility. UGS Unattended Ground Sensors. ( F6 P( N, n* L; N, OUGT Under Ground Test. UHF Ultra High Frequency. , Y+ y1 @1 y& a/ p& C1 pUIC Unit Identification Code. . |- }3 a3 M) Y6 @* QUIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. UKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. : G4 V( J7 B$ t' QULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. $ W2 H6 s; k# e6 H8 FULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet ( h# y2 E8 @& }4 p(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). UMD Unit Manning Document. : H$ K6 j/ `0 `UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. 2 k. Z1 ?- Z! O3 FUNC United Nations Command. - `2 V. M9 u }( ^$ j# @ L" U! zUnconventional / r" T# ?4 y% IWarfare 5 q2 d2 D8 T/ P5 R# xA broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare includes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, covert, or clandestine nature. - n' s+ M [6 ?6 S1 u7 U/ |Unified Action V* s1 t! i% K" y9 WArmed 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 6 x/ o+ G+ ?( e- N) bmore 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 2 t$ ]( H0 |. B, V& y0 Tof Defense with the advice and assistance of the Joint Chiefs of Staff. : x/ u* Z9 R( uMDA GLOSSARY, VER. 4.0 U ! G# E' f% c O8 R311 UNISYS UNISYS Corporation. $ [0 G7 d8 ?8 S5 u" ?) G7 dUnited States 0 Q/ X* V1 \2 ]5 }7 UArmy Space Command ; U0 R% R/ ]& w( g. h" D" ?, A(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. % w0 p7 @9 n, D3 HUnited States Space Command (USSPACECOM) The unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. 5 U$ i5 E0 k7 U1 q9 V$ @1 I6 M" QUnited States " [2 B. A4 ^! U" v8 sStrategic Command ! b: p8 Q1 K: k0 i(USSTRATCOM) 1 ?# \* }. b) Q0 I$ xThe DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic missile offensive combat strikes. Located at Offutt AFB, NE. United States " E9 M5 s& h Z- j5 C3 x! vTransportation / }: T4 T( M& G1 C |% [) O, b) uCommand ) t7 e7 p& h6 B. T( K6 V! c. b) v(USTRANSCOM) 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 . b$ m2 f/ N' @- Y9 r lwar. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces on a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. . E3 I% j7 d6 z( Q% oUnresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. ; L+ [& j9 F1 _' s3 t% VUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. : ^8 a' ^3 T9 a6 B+ U9 i* CUOC Usable on Code (ILS term). UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). - V2 O. B* D) A5 e; JURIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. . N, r- n/ Q$ B" e) c- VUSA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. ; G6 l: A+ _: Z5 r& {7 z4 b8 D9 gMDA GLOSSARY, VER. 4.0 U 9 D9 i& z' S8 `312 4 C" b8 }9 S" a" p! O2 GUSACE United States Army Corps of Engineers. & g/ h9 `2 ?8 T0 W, V+ IUSACOM United States Atlantic Command, Norfolk, VA. 3 d2 ^* E/ {; m* q# BUSAF United States Air Force. " Q4 r. j, F; V7 W6 T$ K7 VUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. 1 X% O$ v) e1 }# I; P, Y" @USAF/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. / |/ x& ?7 G* q. }2 hUSAF/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. USAKA U.S. Army Kwajalein Atoll. 4 B1 e) ^ z5 \0 ~USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. 4 z/ r8 K [: k! MUSAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. 4 [- l& W" E% }USAREUR U.S. Army Forces, U.S. European Command. 2 E- N. A8 }5 L; Y! jUSARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. + `9 K- b. W. f* k; o* _+ hUSASDC U.S. Army Strategic Defense Command (<1Oct 92). USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL . M- `) V! x: r7 | @$ ^/ x$ KUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. 1 B7 ?+ P4 [* \; LUSB Upgraded SBD. ( T$ E/ k# A8 n qUSC U.S. Code. USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U , [7 a3 L6 K3 E3 M! R$ l \313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. - o4 W* G+ A: ZUSCINCLANT Commander-in-Chief, U.S. Atlantic Command. * D+ o( p8 f, b& i' e |. f; L+ @USCINCPAC Commander-in-Chief, U.S. Pacific Command. ! y5 s, ~7 Y3 `' ^! JUSCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. : {, O4 r; c$ I5 AUSD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). & V6 M7 `3 q+ j8 O8 dUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. / {. t% T* e6 h+ j( } Q" U! A* cUSD(P) Under Secretary of Defense for Policy. - C+ E! x" x' F& GUSDA United States Department of Agriculture. ( {4 x# U: N4 u: kUSDAO U.S. Defense Attaché Office. USDELMC 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. 8 Y; P' o2 K& z& d! p0 u- W' mUser Operational * G$ n6 @: ?3 a! l) EEvaluation " U6 c u" G3 |6 {System (UOES) Prototypical system developed and tested as part of the early phases of the * X( d0 S: I" Z5 C6 s& _) bdevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the normal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. + @1 y) g1 ~0 W) E% V5 |USFJ U.S. Forces Japan. ' @8 F0 {" P6 Q9 ]; pUSFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. / {0 Y( T$ b7 CUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 4 W" r( M" |2 d314 6 s$ K) h# d1 R% EUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. 7 \0 z( J3 w( U7 g, ^9 o, r9 kUSMAR- . |8 e% [+ g4 H" k, tFORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 5 B4 c2 `5 U" ~5 I7 iUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. 6 {( [& T* A% t! G! a8 |5 hUSMILREP U.S. Military Representative. & O$ c k# }* @6 Y! N& z" D/ ^USN United States Navy. ! c. v8 D3 A0 K: q) H" E$ r9 gUSNAVCENT U.S. Naval Forces, U.S. Central Command. P( b, n' E7 [USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. . ~- r8 n7 g& o6 KUSPACAF U.S. Air Forces, U.S. Pacific Command. / t2 K% B' y& x; lUSPACFLT US Pacific Fleet. # Y! `' b# b4 G% e+ PUSPACOM United States Pacific Command, Pearl Harbor, HI. * |# {, @6 B5 @3 D! E4 V2 A6 MUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. " p, P3 X/ L. fUSSOCOM United States Special Operations Command, Tampa, FL. % t2 |4 q0 E# ^5 kUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. % N$ ^2 |2 Y2 }! QUSSPACECOM See United States Space Command. 9 z9 s( ]. R# Y# C. vUSSS United States Secret Service. 2 Q: G6 g# R* NUSSTRATCOM See United States Strategic Command. - h& ^2 _7 A' N$ I* zUSTA United States Telephone Association. 8 T% s/ z: |( [. Y* d: L9 W9 lUSTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. 6 B4 _7 k4 u) W+ f* U5 dMDA GLOSSARY, VER. 4.0 U 315 6 r. u( \1 R# Y6 L0 x" a3 l# pUTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. - `6 |2 T( p, D4 \$ M/ h/ gUV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength ; R! b% {! O7 E( z7 w6 M# rspectrum shorter than visible (e.g., less than 4,000 A). 2 g2 a# c+ I. v0 Q- bUVPI Ultraviolet Plume Instrument. - y7 d# m' t( S3 i( M2 eUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 316 V Volt. V&H Vulnerability and Hardening. ! Q8 g- ~; T! E5 k$ q6 wV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. ( N/ `/ p! t' R, |: Y, c8 l. k" [VAFB Vandenberg Air Force Base, CA. }- C) B* _6 s4 v6 a' N# OValidation 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. VAR Visitor Access Request. + c1 A" ~4 v! H% vVariability The manner in which the probability of damage to a specific target decreases ! }: y |$ @ I, ~with the distance from ground zero; or, in damage assessment, a mathematical : w. @$ V: p& L. V, Q& L2 [# y* Afactor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. . Z/ R( s! C5 h9 `% @VBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. VDU Visual Display Unit. VE Value Engineering. + i, L4 R8 `2 d; ~; }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, 6 d8 u- g0 x3 D! \3 T) x6 fcalculations, logic, and interactions of the system under evaluation. + g3 N* [* R5 k& G1 P(2) The process of evaluating a system or component during or at the end % u* ^' L- R$ u/ C+ K1 O. nof the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. VFR Visual Flight Rules. 0 \" j1 M" D3 a& ^VGA Video Graphics Array (Telecomm/Computer term). ) y/ D0 t" v2 f& sVHF Very High Frequency. }/ X1 ]* \) c2 E7 yVHSIC Very High Speed Integrated Circuit. ; z6 N2 f2 T+ @( O8 N ~MDA GLOSSARY, VER. 4.0 V 317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a gimbaled airborne sensor with visible, experimental UV and quantum-well IR ! X6 B5 D0 W1 L9 u$ lcameras capable of tracking targets that can be detected, identified, and 1 g7 A" }1 x/ W6 Uprecision-tracked with the ANTE processor. 7 W" Q- x: a! M3 j9 [6 G5 @VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. % k& ~* e) ~) ^7 Y( X& kVIS/UV Visible/Ultraviolet. Visibility Range 7 W+ z) T3 |7 u4 Z( p(or Visibility) + R7 k2 t1 H8 g7 k. ^" q+ [, N# `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 7 Z4 v# ^ A* y! p4 H6 Fclarity of the atmosphere ranging from 170 miles (280 kilometers) for an 7 a2 l8 m, d* ?( `0 o5 Cexceptionally 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 " H( x5 \" ]+ S1 J9 pkilometers). : f: K% |1 M! g, ^8 tVisible Electro- 4 \2 s4 I9 T9 COptics 7 e7 _; F" J! S8 }: s1 qTechnologies/techniques employed by optical sensors in the visible portion of 5 S5 l1 ?" A" r4 L2 uthe wavelength spectrum. 3 }% [' r0 h5 H4 tVLAR Vertical Launch and Recovery (UAV JPO term). 2 t- t9 `$ Z8 p/ V5 ?VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. ' J& _4 N. Y# D' p5 b& `: EVLSI Very Large Scale Integration. VLSIC VLSI Circuits. 3 T+ t- N( o# E! B& f1 O; yVLWIR Very Long Wavelength Infrared. 4 Q. A5 r7 {3 ^+ t5 w5 I. |# U3 c! aVME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). VOX Voice Actuation. 4 d$ @3 P8 j: R, b1 NVRI Vanguard Research, Inc., Fairfax, VA. 3 z; B& O, X/ }* h' B/ y! D5 LVTC Video Teleconference. # c6 J1 t. n: @% B% C8 A% K7 k AVTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 318 : R2 b+ I& c/ j) e! {4 V0 lVulcan UK bomber. VV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. P0 d9 U7 R8 {4 GVVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W $ q+ B# a( e3 y% x9 U* r- _& d: F- _319 W/ With. w/o Without. W/TD Warning/Threat Detection. 3 O D& n8 @$ }' jWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. ' d+ C5 h/ ]1 u2 a+ ]# H; d8 cWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area ' A# [% {' y. T7 i! d- p; L2 H$ UMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). / F2 g: t% d4 W% n9 ~- |0 iWAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more 3 B2 { q. A* O9 m& M0 }" iopposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. 8 D0 I6 M6 m2 u0 O. @1 A& Z8 F: _Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the JNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and assessments. ; U3 E3 z0 R' o& O" }+ \( e" |. ?Warhead A weapon, usually thermonuclear, contained as the payload of a missile. * S8 t( h( x5 o1 i4 W9 UWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, 8 G0 a3 t) T$ D4 H! w$ Oairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related components. WARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its ( Y3 \) v) F X ]7 x" iarmed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). & P6 P3 C# G3 X' w6 |5 A5 VWartime Reserve 4 Z) B. S5 |) I, v+ q( @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 ! l% b# W* w! ^commanders before they are used, but (2) could be exploited or neutralized if 6 o! f$ n+ V/ S2 J0 Wknown in advance. Wartime reserve modes are deliberately held in reserve for wartime or emergency use and seldom, if ever, applied or intercepted prior to 7 s2 r3 m+ ^% G8 N ysuch use. % v* x6 j& C& VWAS Wide Area Sensor. 4 y" t# f/ I' |/ Z: x- TWASP Wide-body Airborne Surveillance Platform. A modified DC-10. - ?1 S0 ?9 x& r: i7 |# d1 w! i; v5 J" ZMDA GLOSSARY, VER. 4.0 W & a F% K5 g- H320 . i4 U3 [9 E/ k' |WASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective ( c) q2 Y h4 o( Xin contributing to the defeat of the offense. Watch Condition 2 r9 }$ ? V* b( ](WATCHCON) / p8 t8 D. \. _& [Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. 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. - \ b) J8 E+ I+ V* AWBM Weapons Battle Manager(s). 9 m1 g( e: J, j0 w# ^WBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. ! `7 H+ ^6 M0 G4 g4 WWCG Workstation Computer Graphics (Computer term). 0 c+ r9 B2 [- D$ SWCP (1) Weapon Control Processor. (2) Weapon Control Platform. $ V1 L4 V; {' r' LWCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.