航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T ; N7 ?" h# n9 S. H" e' Z298 & b0 y G+ [: d' ITheater Missile Defense Council * k+ s! l8 Y) c# m$ m* X4 j k(TMDC) * E" L# L- d' Q% J6 n' OA consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for 6 O) R$ C& n% i7 n3 z; lAcquisition/TMD, membership includes MDA TMD Directors, representatives of ; n0 S) J! D4 X% l1 v2 M; \5 Neach applicable Service Program Executive Officer, and TMD Executive Agents 2 |7 O$ W# b& Gand Program Managers. Theater High Altitude Area Defense System (THAAD) A ground-based, air transportable interceptor system that will provide wide area " |9 |, t, M4 N/ ^defense capability by intercepting longer-range missiles at higher altitudes and at & ~% u: v5 d- x% W8 [greater distances. Will provide an overlay or upper tier to point defenses such as 2 B! J. C+ \, ^- [PATRIOT. 0 D5 L- `$ W* u7 L6 p. t3 WTheater Missile : [3 [, o) {! u/ B! K6 Y3 i(TM) " j7 J- z, P& V9 s2 _A theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable 3 ^; ]* M- `0 u8 V6 ?7 Vof attacking targets in a theater. M! T. R" t0 B& jTheater Missile M5 i- e W9 W- D) gDefense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, $ m1 H* F; \6 t$ H/ Xintermediate-range, or medium-range ballistic missiles. Theater Missile Defense Ground- Based Radar (TMD-GBR) 3 f$ d# h) y3 ~! {5 LA ground-based, air transportable sensor that provides search, tracking and 1 n2 L# [ C( p, Idiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. 4 L$ X' D+ v, t$ n: ?6 n2 v4 STheater Missile $ `8 n, b" i5 a1 p" GDefense Initiative (TMDI) & M$ c8 ], \, Y; s: a6 YAn initiative under which all DoD theater and tactical missile defense activities are - h5 Q7 u3 V( r8 I* _& D) gcarried out. Section 231 of the National Defense Act for Fiscal Year 1993 ) I4 G: T# ?7 q(Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. 4 o- v5 p I' |) S5 SThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of . q, x* b3 j2 I4 d( S4 Hthermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. Z& j& N+ P) Z+ BThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. 7 W5 X# Q* i$ {+ ]+ F+ tThermal Kill The destruction of a target by heating it, using directed energy, to the degree 6 e, c+ h/ h: A* c" Q9 sthat structural components fail. & p% X/ B) u, Z7 D; K. {Thermal " n: Q1 x1 O5 L+ FManagement 2 p1 J% l- k5 T( {- TTechnologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. Thermal & d- o0 o/ X2 W. e; sRadiation 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 ultraviolet, visible, and infrared radiations. 2 {* I1 I6 Z5 @( @4 A5 wThermal 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 region) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 299 2 p" V+ H1 r a+ U/ O+ {9 Y# uThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; ' P$ e' ^/ a X3 i/ eit is a region of more or less steadily increasing temperature with height, starting ; P% K; h* c% r4 p2 Yat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. 3 r' P0 M( a. X& D6 s# OThreat Characterization ; p2 [+ U7 }! e. l* e+ YAn assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor ! d6 T! J8 P5 ^0 W, K4 }(Threat Tube) A tube containing all the objects originating from launch sites and aimed at / X! Y2 ~$ I+ c: R5 P; }targets whose spacing is close enough to permit the tube around the object $ |! u" N T9 f. ]5 itrajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic ; l) `! F! j* o) C r2 Emissile defenses for the purpose of analysis and evaluation of those defensive $ m) ]9 q5 p3 z( r1 ysystems and architectures. ' Y* ]0 v0 t U) ?' O5 O/ E2 X4 _Threshold Performance capability or characteristic level in terms of a minimum acceptable 7 L4 O* F% c3 kvalue (threshold) required to satisfy the mission need and a performance . Z0 q* j- r* gobjective. Threshold 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 ! p: d$ _* a% J4 o4 ^offense to mount a relatively large and complex attack. + i$ T+ ~4 H% C% T) h% bThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted ! I5 ?. d2 t" ]% _6 YReplicas (TREPS) ) f4 n5 O E6 j+ v( u" B' WConical decoys equipped with a miniature rocket device. Generally used to 9 N; E/ ^6 ^) B7 m0 Achange the decoy’s optical signature to resemble that of an RV in the reentry phase. ( i4 a) G! e, F* l5 F; d9 N. r/ eTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. 3 @2 U+ @0 e: S! @7 y* i3 y(3) Theater Intelligence Broadcast System. 3 c3 q; j! L8 Y% V' t7 @9 mTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP 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 (e.g., boost phase). 5 I+ t: o+ @& E" b/ _# c* m9 rTiered Defenses The use of defensive systems at different phases of the missile trajectory. w6 k$ g0 C4 P' p" T2 WTIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. $ o. T- H0 R" s/ P7 iTIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T ! a6 O x& D2 T8 a, G5 M300 0 W; X1 t) m# M6 @' L: cTime-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 debarkation or ocean area. 7 y* {+ @# `, l- N: C' j A* `Time of Flight (Max) # m* v; J" P d" RThe maximum time for a booster or vehicle to perform its function from time of . d) P% e! w2 t2 K2 K9 f+ M$ }- ~9 Qlaunch. 3 I* P/ O! B! d8 P) b- W' NTime on Station The time the sensor is in its operating position. Time Sensitive Targets ' s0 `) Q- J* H4 x% X8 c2 lThose target requiring immediate response because they pose (or will soon pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) ' ?0 q# |; @7 uTIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. $ H( ~. Y! d6 V5 ?/ l+ _Titan USICBM. 7 g% d$ F0 a7 S* f: ATIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) & Q* W* g1 f: f; ]6 F, V3 n% [, N7 e0 E! uTL Team Leader. 8 Q% s$ P: h0 N+ {2 uTLA Time Line Analysis. 9 d6 b! }- ^+ ]' x! ]TLAM Theater land Attack Missile. * x+ j2 ~- A5 e. m& ^ c* \# PTLAM/D TLAN [with submunition] Dispenser (Navy term). - ^. G5 L2 e* wTLDD Top Level Design Document. , T$ \9 e% p6 k( rTLV Target Launch Vehicle. ( C; F H4 H$ ?1 p0 MTLX Teletype. * m' X v6 f1 ~! FTM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). 4 {, e& U0 x6 p7 V: y; DTMCC Test Monitor and Control Center. ' P0 m4 S' _ Q) \TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 301 1 r% `6 t. i$ E8 LTMD C ; n+ Z& }' j" S% v- y3 ' h. x3 v, f& H5 QI Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. - u; ?4 u3 |, J8 K8 DTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). 1 ^4 X. B9 Z" P; {" `TMD 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. 4 ?8 {+ V; `6 eTMDC Theater Missile Defense Council. 5 p6 X6 w- Y4 r7 f' X8 r- J2 KTMDE Test Measurement and Diagnostic Equipment (ILS term). : c4 {; Z0 C7 Q/ e0 MTMDI See Theater Missile Defense Initiative. % n5 C# V0 `" j/ W$ f; cTMDSE Theater Missile Defense System Exerciser. 5 `9 b8 p7 f: N3 `1 {% dTMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. 6 T/ N. M* N/ m9 o$ o2 OTN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. 9 a4 A- q7 G) O5 D; y: D" mTNW Theater Nuclear Weapon. * b& o# u% {4 a! h* f. N b' V- o5 iTO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. / U6 h- A7 v6 {* K4 |& c! UTOAM Tactical Air Operations Module. TOC Tactical Operations Center. TOE Table of Organization and Equipment. TOF Time of Flight. TOI Track of Interest. 1 ^" R. G0 O! kTOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. 4 M5 _. W1 [ t5 @% Y4 d. qTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 3 h n! r. W8 w+ o/ _ v. x302 3 w2 t' V5 Y& j6 nTOMD Task Radar Management Details. 1 r6 ?* O" H5 p. Y0 Q3 A, `TOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). + N7 E* @0 B4 j* M$ b* pTOO Target of Opportunity. TOOL Target of Opportunity Launch. + P \& P; r9 J9 x4 H; o MTOP 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 8 |0 M; g9 s. y9 z9 i; \# t- FThe process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the desired level of detail is achieved. Top-Down 5 R9 n B/ R9 h4 a4 u$ ]Testing 9 W/ _4 }; ?& J. a& LThe process of checking out hierarchically organized programs, progressively, 7 d% N! m0 p& l( Q; J. xfrom top to bottom, using simulation of lower level components. ' T: _- C2 N8 w/ aTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given " d" \3 E4 r; N4 Pfiscal year. 1 b B; ?. y- Q) @) {9 E' FTotal Quality Management x! ` w" Y! W# H% T7 w$ ^(TQM) A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. ! \+ T& R0 c; e( r% j, v1 xTPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. ) t6 z; _# Q+ ~; e' D9 FTPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 7 P) f& E+ ?/ |( V303 TPEC THAAD Performance Evaluation Center. 1 v9 b. I4 D6 d5 v3 t& [) b hTPEM Technology Program Element Manager (SDIO/MDA term). ) `3 q0 g0 P/ rTPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. * A* t4 c o- n wTPFDL Time-Phased Force Deployment List. 1 P3 A2 `5 }: c, ~& T9 rTPM Technical Performance Measurement. ) @* Q9 M- A+ Q: @. f) LTPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. 4 x- {: F% d+ b3 X! ]( RTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target % K. i& J) R/ Y; @Performance Report. TPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and 2 n4 c3 h7 ]1 dconstraints. (2) The degree to which a relationship can be established between two or 2 U; l* o1 j& B: l* amore 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. / N' ^4 X# R& r- |/ q0 y2 v, e(2) To display or record the successive positions of a moving object. (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 ' Y* @6 p2 @" ?instrument at a moving target. & q N* O5 M& a# F: A(5) The actual path of an aircraft above, or a ship on, the surface of the 7 V, }5 t( D# \. Pearth. s h' Y0 C5 ~9 g; i$ l1 H O3 STrack $ e" e- e9 f% U6 {7 }( ~( V ~! nAssessment ; ~+ @& Y( |* q- u" P8 gThe Track Assessment looks for anomalies in an object’s track data. An anomaly $ ~0 L. f, N9 q+ G. ]; Z6 {. ?in the track may indicate a hit. 1 a) [" [5 V$ z* {2 kTrack, Birth to Death The maintenance of an associated track through all phases of flight (i.e., boost to reentry). Track Correlation The combining of track information for identification purposes, using all available data. 0 J$ f. e) X. e; RTrack 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 # P1 ^ ^2 e) p8 For place (e.g., reentry). ! p, @. E+ u: ]' R& I- B+ I; DMDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of the above. 5 z( z- \6 V& p4 jTrack File-Track ( @; r9 ]# B# o* b7 @History ! E$ q# C3 @% ]" a" yA set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a three-step process of data association, track initialization, and track improvement / j+ R' I3 e: `+ w6 S- w; e- aby filtering. 5 X6 B: l2 c# U: A1 yTracking The act of generating and maintaining a time history of an object's position and * ~# d6 L: x% H2 W$ ~1 d5 Uany other features of interest. / Z Y! k4 Q; aTracking and ' C3 c8 S( w- C1 E; cPointing , `2 H5 I; d. A$ ~Once a target is detected, it must be followed or “tracked”. When the target is 2 l& e- x! u0 ?( }1 usuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing ! f- E6 v: D& j) S/ K! ^+ ^- `are frequently integrated operations. & T& B7 h4 O' l2 jTracking Range (Max) " i, c& h- p8 x( U1 ~7 ?; oThe maximum line of sight distance at which a sensor can maintain track of an ) V1 e( q1 [8 F3 `. f" e' v4 i5 s6 mobject. 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 6 U$ \3 W& ~4 Dframes. . ^; U' f0 T' F2 }" U' Y; ~/ t2 xTrack Production Area / X V2 ?6 X R+ ~. EAn area in which tracks are produced by one radar station. Track Symbology Symbols used to display tracks on a data console or other display device. Track Telling The process of communicating air surveillance and tactical data information 8 K" P" L! `& X1 } E0 G+ gbetween command and control systems or between facilities within the systems. Telling may be classified into the following types: back tell; cross tell; forward tell; ; i2 V" e- X) n. g& }) Clateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. 7 ^# @' T) Q+ H* W5 r7 s. hTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability ' Y" O7 M1 Z; }0 L g) {6 bMaximum The maximum number of objects per unit time which the sensor system can maintain track files. ( q! J. |2 h+ k! v" ?Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high 5 G. P' O! F. Q1 o N5 uendoatmosphere. 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 5 h4 U7 h/ ? R/ ?6 X8 G9 pHistories 5 x8 O, @# m2 mTrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). % ^5 V& [ G$ C1 `. gTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. TRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to 9 z- i2 u3 R' i3 T! I1 L7 a, j& LProduction & b; ?# N9 W" i4 r" b6 X8 S: j9 LA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a / p3 _ t% j9 S8 ^9 dprocess consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission ) d% |+ G# W9 x, r7 K% O% S$ GSecurity (TRANSEC) , A; c, i: g5 G$ OThat component of security, which results from all measures, designed to protect communications transmissions from interception and traffic analysis. (See , G( D" C Y/ }- q* Q- N; _; HCOMSEC.)

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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. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. ! g, `! ?4 m2 z9 U$ o: @3 VTRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security & h1 W! b3 w* ]; E; H t; {# qmechanisms to be circumvented. Traveling Wave ' S, V B: A4 BTube (TWT) An electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in synchronism with it, in such a way that there is a net transfer of energy from the / V8 K% ~* c. f @, x6 v' jstream to the wave; the tube is used as an amplifier or oscillator at frequencies in the microwave region. . E1 s# q- u6 c" K$ U3 CTraverse (1) To turn a weapon to the right or left on its mount. . m- s: Y5 k9 L5 I- d: o% }' h(2) A method of surveying in which lengths and directions of lines between points on the earth are obtained by or from field measurements, and used in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both as a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. TRD Technical Requirements Document. TRE Tactical Receive Equipment. TREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. 3 I8 ]) I# {; v; b- sTREM Total Radiation Environment Model. + j" ?: L9 ^1 A5 h1 o) WTREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. * u" f j7 n+ u/ yMDA GLOSSARY, VER. 4.0 T 4 }+ P/ _/ J1 X2 Y4 E$ S306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. 8 R) `* X: ^5 @9 OTRIDENT Class of US ballistic missile submarines (USN term). 2 I+ v; Q! h& n P( {- bTRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. ; H1 X& h5 k$ ~8 `1 STRM Technical Reference Model. TRMP Test Resources Management Plan. / z: b8 [# ]2 a$ O* {2 QTRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate . l/ U. x5 y1 w0 L7 [8 l z4 f3 {authorizations of the invoking process to the detriment of security or mission ; `6 m; _9 E0 c/ M* Iperformance. " f; Y; C* \# z3 @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 + l D9 ~- b, h' i' ]( Y+ b8 X9 r8 C' Eabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the , o9 e# b5 f* X6 U3 P7 I4 {tropics. (See Stratosphere, Troposphere.) 1 I6 Q$ J( r" u' F3 @0 tTroposphere The region of the atmosphere, immediately above the earth's surface and up to the tropopause, in which the temperature falls fairly regularly with increasing ! u+ U! }. Y0 k8 ~3 Jaltitude, clouds form, convection is active, and mixing is continuous and more or less complete. , [3 V6 j( L" ~) i$ L( o0 RTropospheric . s1 U0 @2 h9 ^( e( J2 iScatter The propagation of electromagnetic waves by scattering as a result of z3 r. ~% ~% y/ \- Uirregularities in the physical properties of the troposphere. 7 q- P8 G Q+ `5 o2 ]1 S3 KTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. ; @) X7 r- A" t& |2 x' J6 bTRR Test Readiness Review. Trusted 9 J% b3 c- k, ^- Z3 s. _+ Y# pComputer # q8 Z, E$ C& ^5 z# Z+ j9 P2 LSystem/Software A system or its software that employs sufficient hardware and software integrity ) y: R, P5 X4 V! Xmeasures to allow its use for processing sensitive or classified information. # j. O/ M* r7 X! K9 k S! zTrusted Path A mechanism by which a person at a terminal can communicate directly with the : D4 J' `* w9 ATrusted Computing Base. This mechanism can only be activated by the person % k P3 a- v! C0 [5 @3 iof the Trusted Computing Base and cannot be imitated by un-trusted software. 9 x& k0 k% Y& p6 F0 ]TRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. , I3 C) `+ T" V: T8 f$ g4 CMDA GLOSSARY, VER. 4.0 T 307 TSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. 6 f* K' c" m& rTSCM Tomahawk Strike Coordination Module (USN term). $ q5 ^: c/ n$ s9 TTSD Tactical Surveillance Demonstration. 7 o" S0 ?2 ]: d& RTSDE Tactical Surveillance Demonstration Enhancement. " P4 w- g( C% w0 CTSEU 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. 8 ]. ~7 G- x9 d0 T; E5 f2 STSPI Time, Space, Position Information. / Y& S5 s. w3 jTSR Target System Requirements.

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TSRD Target System Requirements Document. ; ^8 ]/ f0 ]6 }5 BTSS Terminal Surveillance Sensor. ' E8 W+ E: E+ ^0 q+ C- \) J9 RTSSAM Tri-Service Standoff Attack Missile. l5 a2 e7 I- c6 D& ?TSWG Target Signature Working Group. , T2 D1 P6 i' O: PTT Total Time. . H( N; z3 Y5 O2 ]. gTT&C Telemetry, Tracking and Command. & E! x2 e" k. _( l. HTT&E Technical Test and Evaluation (Army). / X# j3 t( N+ M" ATTA Total Time Accounting. - o! P5 I' x; r& P) C: j; cTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, which have significant potential for improving testing. " y3 I2 i; ~, F- R! q( ~# VTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. 7 d# N3 _4 |. ? I' ITTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T + p" f9 |) }0 y1 E% Q308 TTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. 2 K! b- H2 ? w2 ZTV Thrust Vectoring (rocker engineering term). 2 N" l! r5 a3 n/ d, ?; r! ZTVC Thrust Vector Control. TVE Technology Validation Experiment. : v& Z7 W6 |% M: [& R% BTVM Track-via-Missile. TVV Technology Validation Experiment. TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. - D8 Q0 P+ S- k+ _9 ^TWG Technical Working Group. 8 Z1 q5 V2 I7 } K4 Q4 F! \! PTWS TOMAHAWK Weapons System (USN term). - T/ g9 I: D n4 ] aTWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 8 Y& \* c; A& X; A9 g& a' I' v5 Z* @TY Then Year (PPBS term). TY$M Then Year Dollars Millions. % w; T7 j: i4 h; LType A - System Specification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical - _, n8 z( e, @9 S3 wconstraints are included. Type A specifications state the technical and mission requirements of the system as an entity. Type B - * K# n2 v7 U }6 v8 `4 C, m# bDevelopment 8 m/ t8 [% b6 h& \) kSpecification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the 5 O, L1 S4 Z. `4 ?0 V: xdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of those characteristics. : R0 B% k- ^ c) WType C - Product Specification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of 0 c# R: }& ^/ \! `primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 6 K8 I' X2 ]+ C& L1 t/ H9 p* Nitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. ' \0 Z$ H& A& f8 y& CTyping The act of recognizing objects by measuring a set of observables, computing a ( S4 a9 g* w4 ~+ j1 O2 i6 L# |( gset of characteristics, and associating the characteristics with a specific class of + e& M* W' _) V% |; K$ bobjects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 2 z! t+ q" D% v3 q4 B0 `9 L' \309 U Uranium. 0 R2 p9 m) e2 B; R, {U&S Unified and Specified [commands] (pre-1996 term). . P8 i) b' a: C: y6 O0 S1 OU.K (UK) United Kingdom. U.S. (US) United States. # ~8 ]- g+ o5 O9 x1 p5 UU.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. # ^1 U4 j! ~/ ~- M' x3 e9 a, YUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. 4 {; k L, f( s2 x2 W$ ^0 OUAV Unmanned Aerial Vehicle. : n: x8 U$ ?( D" E8 {* aUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. Z2 ?7 i0 _9 G) B OUCC Uniform Commercial Code (US legal term). 4 H5 L& }. v0 W4 Y) }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 ; ?! G1 u3 E5 z8 h6 e; U( b% ]and coordinating program requirements for testing MRTFB ranges, as well as the + Q0 P7 m4 o3 [+ ^capabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the 9 K2 r/ K/ m4 s1 ^: EProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) # p9 h. Z. n6 l# m5 }7 A0 COperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the # L1 I0 T5 ?' ~" s5 t: B( V0 cOperations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. 0 N( m' H ]+ u$ x7 h8 Y3 ~& w& AUEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. ; [' W+ A a: o+ RUF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U 310 & M! O* c- {- T: SUFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. ! F! x# L9 t, ]UFP Unit Flyaway Price. UGF Underground Facility. 9 C4 c8 I3 p' m/ j) rUGS Unattended Ground Sensors. [+ y/ W( Q; D+ \UGT Under Ground Test. UHF Ultra High Frequency. 8 ~, g5 ?5 t) y/ f5 ]7 W4 EUIC Unit Identification Code. , c% C; O4 j# e# p( ~* h$ W7 x6 xUIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. . _2 q( V& w( h! ~1 m6 c+ XUKEADTB UK Extended Air Defense Test Bed. ) x* @' A* H) y+ R* S4 iUKTB United Kingdom Test Bed. % \* h* g h* E% z# oULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. 1 k* K7 J. u4 W3 i0 YULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet ) A( P0 Q. U( o& q' A(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). ) K4 B4 c+ e. W. i) R) wUMD Unit Manning Document. . M+ n( k, u4 e: w3 mUMMIPS Uniform Material Movement and Issue Priority System (ILS term). 8 X+ g3 }/ O* K( lUNAAF Unified Action Armed Forces. UNC United Nations Command. % h" ^ T8 q8 cUnconventional Warfare ( Z, H( ^' o: Q8 M, WA 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, & i. U" b" O( N4 R" icovert, or clandestine nature. Unified Action Armed Forces A publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or ; v/ I; X7 {3 O" nmore 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 8 J2 i0 J9 {: ^% Zwhich is established and so designated by the President, through the Secretary + D% W V6 v% p- l; @& p: vof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 1 b5 `4 O" e7 y: R0 I, x311 4 Y4 H8 o3 n3 C3 @UNISYS UNISYS Corporation. United States # l- K. K5 a* K6 p2 A: t' o" |2 w- }/ z xArmy Space Command 3 s3 Q: k% E$ y/ a' m, k(USARSPACE) 2 Y m9 M8 q: B; q# w$ {5 cThe Army component command of USSPACECOM. Responsible for the Army 9 T6 W- `5 ]: s' ^1 Aelements of the SDS system. Located in Colorado Springs, CO. United States Space Command (USSPACECOM) * O, h7 v$ `2 e8 tThe unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States Strategic Command # s! y8 Z, B1 [(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic , p3 r2 z) h( l# V" ?missile offensive combat strikes. Located at Offutt AFB, NE. United States Transportation $ `! O& z( ^) y, K& L! d1 X% ^% sCommand (USTRANSCOM) 6 t/ y0 S$ K! h( |& V! F1 O: O. uThe DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of war. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces 9 f; j. Q) {! Z" C" {4 f4 |on a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. Unresolved * D8 x9 T4 y5 ^* T% TObjects 6 h4 E7 F9 O, \2 f5 F( u8 R7 o" T" \Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. 9 y7 z1 w! } m5 F- A# [6 e( ]' dUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). - |, `: h3 I( \; s W3 k* FUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. # H4 F; S0 m! o/ n* `" `5 xUQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. * s. b9 m) \2 v% v; mURL Uniform Resource Locator (internet protocol term). ( ~$ J P3 F! s1 C( q) hURT Upgraded RTD. 9 G; B5 a9 h) K2 }: F, m- V; iUS/UK United States/United Kingdom. : d: z7 l p( z4 P3 `* L) x; iUSA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. , f$ Z3 R7 p1 R! p6 T+ X' j' a$ m0 AUSAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U ; n& h [" e3 ~- _312 USACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. ' P* i: _4 j( ?& Q" \9 W* zUSAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF " O) e' j# @% C+ Y* X4 j8 BSystems Command /SSD. 8 @% f6 |/ q$ q/ R5 i0 QUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. / D6 h+ O: x0 X2 N" gUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. $ }, s, W9 B% W8 fUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. 5 c! n4 ] u% `( {USAFE U.S. Air Forces in Europe. $ s. T& Z$ j6 m" k, D% ` OUSAFLANT U.S. Air Force, U.S. Atlantic Command. ( |% Q# x, M( j- @: UUSAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. ! V& Y7 x0 M' J$ p8 m; G8 s7 x% q- NUSAMSIC 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. 7 H0 R& ]" ?- o9 h. ]% RUSAREUR U.S. Army Forces, U.S. European Command. # ?& n# i5 {4 M% cUSARLANT U.S. Army Forces, U.S. Atlantic Command. ' M0 S' |: ]% y2 o$ cUSARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. USASDC U.S. Army Strategic Defense Command (<1Oct 92). ( k; ]4 `) G# C( F w, _7 ~USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL 1 _5 x! T$ K, ` _8 `5 A8 h& O; |' P" kUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. 7 @% K* ? a" l* q' c5 SUSC U.S. Code. ( Q2 b9 v# @( ?4 r8 wUSCENTAF U.S. Central Command Air Forces. # s9 D0 P* p& v8 _0 ~& jMDA GLOSSARY, VER. 4.0 U 313 USCENTCOM United States Central Command, MacDill AFB, FL. 1 c% T. ^# i7 _& V3 D- \. _# mUSCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. ; ?' Y4 N7 W/ n- y8 mUSCINCEUR U.S. Commander in Chief, Europe. / s) C. L; A$ |2 I+ z! YUSCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. 7 T$ f; K% _. NUSCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. USD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). ' \7 }: M5 \% G9 ^6 YUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). I: v j1 \- D) G+ q: S4 p# l' JUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. # h9 M% d+ E% [8 Z% s* q0 [USDA United States Department of Agriculture. ( o6 W9 g/ q8 D. V% Q. ~: R( |. B MUSDAO 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 . e# i7 P+ A% Y. t6 N& D- X1 ]operate it successfully and easily. User Operational Evaluation System (UOES) Prototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and ! V% u# Q% G& z0 A9 mtraining for a system proceeding through the normal acquisition process; and (2) 3 {. H+ d# d* Y( bcontingency defense capability should the need arise prior to completion of the 7 w( ~5 @; ^+ G4 f: q9 ?normal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ; ^* Q5 S# ] e$ n& m! VUSFJ U.S. Forces Japan. % z/ j1 L/ M# c% x; Q/ Y7 EUSFK U.S. Forces Korea. * I" n! L* d$ }* E! ?4 y; XUSFK/CFC CSFK Combined Forces Command. USG U.S. Government. 7 C# P# b6 k- q# F! x7 C! }5 p3 kUSIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 314 USLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. USMAR- - L$ {. [( D- Y+ E0 lFORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 9 j7 ?& w$ q5 UUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. . q3 Y3 m) U/ p6 s5 Y& q; x, NUSMILREP U.S. Military Representative. * n9 h' g. b# t) K# o# c G q1 f2 aUSN United States Navy. , {5 Y @! l8 k& }USNAVCENT U.S. Naval Forces, U.S. Central Command. 7 h) r" N) i+ v9 N/ K( Q$ NUSNAVEUR 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. USPACAF U.S. Air Forces, U.S. Pacific Command. 4 C v. \; ^ @" v2 ?' |) P! C. oUSPACFLT US Pacific Fleet. " \2 O, }: s3 kUSPACOM United States Pacific Command, Pearl Harbor, HI. % K+ q- p9 H, E3 vUSREPMC U.S. Representative to the Military Committee (NATO). ! E$ ^" b+ W7 ?" s; d) mUSSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. ) }& [9 F6 z' l$ ?/ W3 qUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. 5 _/ S" J% |. B1 vUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. 1 j0 |) v; n5 f& `1 I. ZUSTA United States Telephone Association. W: |8 i6 b2 o2 y0 kUSTRANSCOM See United States Transportation Command. , R2 V6 c& b d/ `3 J1 `' E: RUT Universal Time. UTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U + J1 \( B# U7 T6 ~3 }* W0 o315 7 H8 x @5 B8 v" ^, f- v; R) RUTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). r) w' k+ d- @1 lUV Ultraviolet. UV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 316 & s1 `, r- ^* }V Volt. V&H Vulnerability and Hardening. V&V Verification and Validation. (See Verification, Validation, and IV&V.) ! ~$ p& d" v3 F! {; M. UV/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, ( r1 J* K7 n& v5 Otactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. 0 P# b6 V1 R7 F+ A) GVariability 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 - o8 l" E% V) E/ z+ \uncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. ( J' i q g5 f& k1 @; T) oVCS Voice Communications System. VDC Volts Direct Current. ) {0 a$ Z: {) \VDD Version Description Document. VDU Visual Display Unit. VE 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, calculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end of the development process to determine whether it satisfies specified requirements. ) B' g, \8 f; e3 Z+ [: _9 JVESA Video Electronics Standards Association. VFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 , o6 l. v' V( Z" ~3 BVIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D c: V& b; \! {( E9 A' KExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 2 K o4 n7 {- H! W' AOperation Per Second (OPS), using a mixture of experimental three-dimensional $ ~8 C/ [8 r' mcircuitry and commercial components. Project also demonstrates VIRGIL, a ' I6 z. {! Z6 l# g) B$ s( t7 A% \gimbaled airborne sensor with visible, experimental UV and quantum-well IR * h* T3 P, e5 N# N$ x' x, Q3 ?# tcameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. 2 Z! N& s& b8 P, @" l, l5 d- @VINSON Encrypted Ultra High Frequency Communications System. 9 @4 }; l1 ~- v9 r2 ~+ K6 ^ ?( r2 vVIS Visible. 9 p+ v. \+ J1 U: ~1 qVIS/UV Visible/Ultraviolet. Visibility Range (or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can just be seen against the horizon’s sky in daylight. The visibility is related to the + l1 p x. o$ tclarity 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 * d/ ^9 u0 \: F3 jor fog. The visibility on an average clear day is taken to be 12 miles (19 + d, m( V8 X% y4 s# ~kilometers). 8 q1 }1 z* j6 @6 h9 M! ?: {( G, BVisible Electro- Optics ?+ c6 Q' k% H8 }Technologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. $ `9 a. x; M- [3 l4 mVLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. % X6 Y; H/ o5 T; O& Z; r1 T2 \2 \, p9 K9 }VMF Variable Message Format (Telecomm term). 3 H: E3 g2 S; y+ P! G9 zVOX Voice Actuation. . K6 u* N. c" i- x; G9 _3 LVRI Vanguard Research, Inc., Fairfax, VA. . ]) s; V6 U& C8 W5 V( ~VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. 8 {' t3 U9 K; [: \: l/ Z$ Q9 }8 AVUE Visible Light/Ultraviolet Experiment. ( f* c9 C" l/ a* e V0 kMDA GLOSSARY, VER. 4.0 V 318 Vulcan UK bomber. VV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. 4 {, a+ z: _- X. k5 `3 m/ w- n3 z" l8 `VVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W ) I# F* `0 k4 x& [$ y319 W/ With. : d9 q( y- U; w' K5 ^. iw/o Without. 9 w0 K& u% p/ aW/TD Warning/Threat Detection. WAA Wide Aperture Array. : {& e* L' T l( nWALEX Warfare Analysis Laboratory Exercise. WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). ; [# S" Q2 \8 E) J4 C9 ?WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more opposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the " K s1 V. A8 B: E+ I' RJNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and & a8 l. m: A* G& g O& wassessments. ) i7 K- I, D4 u' AWarhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, ( E& N$ U# f, o8 g% O o; A) {& Zairframe, motor, or guidance section. . D" Y" G3 r# D# E6 `; n& |Warhead Section A completely assembled warhead including appropriate skin sections and related ) h- g% ~" r: A7 u! J0 Tcomponents. ) Y, l* }- b9 N L& ~% ]WARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). 1 y" ]5 S9 o" v7 C. P, v+ Y* _Wartime Reserve 4 Q! o; }6 m) a( }# YModes (WARM) Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will 6 p. l$ Y# n& T, N5 O9 O/ ycontribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if 4 I4 ~" g" ]3 P& M# Cknown 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 R; O( t6 I( ^ ]2 g. `% jsuch use. WAS Wide Area Sensor. , Y7 N3 r) f3 e1 h& |4 QWASP Wide-body Airborne Surveillance Platform. A modified DC-10. 8 H# ]7 f& S+ B+ |1 x4 @/ u& L; mMDA GLOSSARY, VER. 4.0 W $ _: P6 q# y0 f- B; E; @320 WASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. Watch Condition & k# I! `& I0 P, t; h& L$ m1 a(WATCHCON) 2 W4 f% B9 O: J# h& w$ R. pSeries of readiness conditions used by the intelligence community to alert staffs ! c5 {( t3 J" Z. ?to watchfulness without raising DEFCON. 6 G" i0 s3 k8 `" m: rWATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. / `3 z* t' d4 A4 S- F: }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. ! N% k6 y9 L4 X1 M) Q) r, H m6 XWBM Weapons Battle Manager(s). ' d3 @# ~8 V. L% n' bWBS See Work Breakdown Structure. 8 N. l9 m& \3 S9 J1 p) G j% ?, {WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). 7 z5 P" i x! W/ K. ?* i" ]WCP (1) Weapon Control Processor. (2) Weapon Control Platform. ' P- v) C$ d" l; ]. eWCS Weapons Control System. ) c, U, E* Z) O* `0 v! ~WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be 4 Y; b. _* b3 y8 klaunched.