航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T # W" t3 P3 ~) v# y298 Theater Missile $ u D0 R8 J9 r3 H! `Defense Council (TMDC) * ~/ _* D4 b5 {8 _3 \, LA 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 7 K% G3 N5 l# V' I6 B& Z" W. O/ leach applicable Service Program Executive Officer, and TMD Executive Agents X0 B$ j$ Y% Eand Program Managers. Theater High Altitude Area " i3 e5 a0 k9 B% y& O6 |0 UDefense System (THAAD) ( i# s2 B' h0 Y TA ground-based, air transportable interceptor system that will provide wide area 3 o7 I* z' m" r8 J+ A# j/ M8 s+ D0 mdefense capability by intercepting longer-range missiles at higher altitudes and at * T0 b# p; n. n6 d( fgreater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. Theater Missile (TM) S. p( l( C- U3 d( p6 K. MA theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable of attacking targets in a theater. " Q# p* z) S3 X9 f4 ETheater Missile 9 I! b, {: K& h7 o2 M1 fDefense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, ' e* d/ E3 z' F" fintermediate-range, or medium-range ballistic missiles. Theater Missile 7 i! d& D! C' eDefense Ground- Based Radar (TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and 8 \. Y, d! _5 d3 Qdiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. " x J: E* X' L+ d* W* uTheater Missile 5 W2 b3 Q5 ?: J* TDefense Initiative 6 C3 i1 B: j3 E8 u5 v- ] u(TMDI) 6 A3 E Y% N1 o/ O4 BAn initiative under which all DoD theater and tactical missile defense activities are " d; a8 g, O( W; e# I2 Hcarried out. Section 231 of the National Defense Act for Fiscal Year 1993 (Public Law 102–484) directed establishment of a TMDI office within the DoD. % O; r3 h: o7 G) p$ E& PTHEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of 2 y' a8 Y* g5 z' X3 g) K7 m3 B1 T$ Tthermal energy received per unit area at a specified distance is generally 8 Z! w% S$ |7 Q# T aexpressed in terms of calories per square centimeter. Thermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree 3 g$ M/ D$ [0 y+ d7 ?that structural components fail. 3 s: `7 t8 o r1 R. W# xThermal Management Technologies/techniques associated with the control and management of ( r' }( L, c$ J" K- X) W* [2 }: R2 Xthermal energy, its generation, dissipation, and recovery. 7 y4 i4 W* F1 u! J! c5 a/ p* [Thermal Radiation . _0 h2 ?1 x& E7 E3 ^6 P1 `8 h: uElectromagnetic radiation emitted (in two pulses from a nuclear air burst) from the 9 s$ [0 e9 \( \: S9 \7 lfireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. : K6 j( T: Z/ d# L' \Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, 2 e& A1 x1 |# C+ n B- D2 xemitted by the nuclear weapon residue by virtue of its extremely high / ]& a$ ^5 }2 e% F. Ctemperature; it also is referred to as the primary thermal radiation. It is the * T/ R X) H, ?* y vabsorption of this radiation by the ambient medium, accompanied by an increase * D* i$ J# v. [' gin temperature, which results in the formation of the fireball (or other heated , ?- _) l* r: S* l% qregion) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T ; Z! i6 m# Y; R$ f d299 ) j" @( w7 F. i8 L- [ Q$ vThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; % X" i$ _) R1 k5 Pit 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 6 l' d- I# Y6 Y Qexosphere and most or all of the ionosphere. Threat ) |. N7 e' J, ~- c, NCharacterization 1 G( S5 J6 k- \% D, P- D# bAn assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor (Threat Tube) A tube containing all the objects originating from launch sites and aimed at 9 m. a1 ^. |! X! D% D+ e- Xtargets whose spacing is close enough to permit the tube around the object ) y+ v4 S4 K$ Z' wtrajectories 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. " r: k6 P) k0 J, _" H/ JThreshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance objective. ^6 J2 W4 Y* y9 q9 T2 s+ m, p9 yThreshold & P* B# R, ~* ~. ?& G+ [) GDefense A defense strategy that concedes that the target can be destroyed at a price ' c# ~9 W6 w% o* Athat is not prohibitive, but the presence of the defense is thought to require the + x: s, ?/ t8 O" Zoffense to mount a relatively large and complex attack. ! d3 k5 k; F# T* V- m0 NThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted Replicas (TREPS) 7 [& i% |7 Q6 C; iConical decoys equipped with a miniature rocket device. Generally used to 6 n+ l1 J- t6 N/ P o3 ichange the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. $ q- f7 A t8 jTIBS (1) Theater Information Broadcast Service. 0 s% F$ ? a* J7 m8 y! i(2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. 9 Y9 w9 B* l0 }# hTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. # \8 E0 A% j% y( @6 R3 J( jTIDP 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). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. 6 N1 p9 w3 v6 J; ^: w oTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. ) s* j) L# |# Y( r0 f1 K% kTIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T * R& O% u* c& S0 y300 ) ~% U. r4 A- T5 dTime-Phased Force and ' i; u, Y& J/ u( L7 q% w* ]% q. aDeployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual 2 c# l2 Q) {5 q( aunits required to support the operation plan and indicates origin and ports of debarkation or ocean area. Time of Flight (Max) : X9 Y8 A6 x" M9 F6 ^; B L) p% }7 nThe maximum time for a booster or vehicle to perform its function from time of launch. Time on Station The time the sensor is in its operating position. / Q" h ]9 q0 }7 l% [1 x6 tTime 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, * f$ j; o0 P" J8 p" a, |3 T( Zfleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. 1 F5 s0 t; d# r1 T6 qTIMS Training Integration Management System (USAF term). + x& J& f* s/ [/ X3 eTIN Theater Intelligence Networks. TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar ( G+ a% ^4 L) m% q' ?) vTerminal (GBRT).) & I) C) x6 |2 F! Q3 y% @TIRS Telemetry, Instrumentation and Range Safety ; p7 s. _2 _) B; H5 r5 B5 X j- TTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) & o9 n) x2 d1 T" P& r3 O+ _; 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. ( M! E9 L% Q+ `1 t. [TLV Target Launch Vehicle. 1 D+ ^/ `) d! V8 v: ?9 x! l% ETLX Teletype. 4 w+ a9 b. ?$ g7 d$ B$ wTM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). 9 O& i$ c ]9 I9 G6 u5 DTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T * @ q! N: S. J7 }$ |301 : g: v. _; n; Z2 W9 I5 BTMD C 4 u; i3 Z0 s: d0 n! A! y" ^3 I Those assets that provide connectivity between and among Theater Ballistic ! N, N: h, q# j; R9 @" EMissile Defense forces. |3 b% P+ d; l" ]" L' DTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). * }7 `0 e( t: s- KTMD 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. 8 \9 y+ x9 I( X N3 P8 NTMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). + r+ R( E& P Q NTMDI See Theater Missile Defense Initiative. 7 `# I& Q/ r, x$ yTMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. * ]+ Z7 w( c( l6 v1 K1 mTMP Technical Manual Plan (ILS term). ) O9 |3 B4 J. e, m# e [- {2 `% JTMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. 2 G) T3 `% }# w6 T" }, \0 CTNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. 7 L# [9 G$ C# }5 wTOA Total Obligation Authority. TOAM Tactical Air Operations Module. TOC Tactical Operations Center. ; N/ k6 o0 O+ r+ {TOE Table of Organization and Equipment. - W7 n) Z1 g, g eTOF Time of Flight. ; z' ^. h; @& lTOI Track of Interest. TOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. # Y0 k+ u1 e2 V2 k8 H) YTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. % e! g) o$ q h" y+ k5 eMDA GLOSSARY, VER. 4.0 T 0 f% M# E; @( O( l5 K- a' Q, b302 , _6 X. P/ H" q1 E# `TOMD Task Radar Management Details. TOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). # c' u3 f8 n F1 Y6 c4 g4 ]TOO Target of Opportunity. TOOL Target of Opportunity Launch. TOP Task Order Plan. % g! @3 T1 T/ s' xTop-Down Pertaining to an approach that starts with the highest-level component of a ! i! f+ L7 x3 i8 Shierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down 7 ~2 U/ q( ~% W) f1 c W9 MDesign The process of designing a system by identifying its major components, 1 B/ Y. W; r9 P+ d5 n$ d$ t; mdecomposing them into their lower level components, and iterating until the desired level of detail is achieved. Top-Down Testing ( q5 i: T/ e$ \. J& c$ \3 {The process of checking out hierarchically organized programs, progressively, c5 I0 Y, E# F2 {% I: @ ?" G( R: Gfrom top to bottom, using simulation of lower level components. / Z8 L, l$ w& tTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. j; K$ L# v9 n3 MTOR Terms of Reference. # X9 r W: b% ~% ]" R# RTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. 8 P4 I# o/ k7 Y. E0 u5 O0 e% rTOT Time on Target Total Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given : J( V% w P& K1 a% L8 u2 j% }fiscal year. Total Quality Management 8 W; ?1 c* l( L(TQM) 0 i+ ^% U- H" Z. T" @" mA management philosophy committed to a focus on continuous improvement to 8 E% U6 p2 \1 u4 w0 mproduct 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. TPALS Theater Protection Against Limited Strikes. ' l7 N K8 `/ L' O) ~TPBM Terminal Phase Battle Manager. 1 c0 x- W# p/ _: K( l3 G& _6 l4 f( {$ _TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. ' j- r' L& m+ w9 B2 e9 H( F% E# gTPFDDL Time-Phased Force Deployment Data List. 6 ~7 J/ O7 e6 J/ BTPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. : [% T" z5 U* q0 o9 Q YTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target - t+ b# q- x* U1 C( y8 ~Performance Report. TPS Thermal Protection System. TPT Theater Planning Tool. $ ^! a# h/ S7 X k$ A0 a8 R8 z3 I' sTPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or ; S8 x, w/ U3 U7 R5 ^2 ?. Tdomain models that identifies and documents the derivation path 9 X1 x) {/ g( q(upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or more products having a predecessor-successor or master-subordinate relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. 5 {2 V$ [3 ~; Y6 b; h; P(2) To display or record the successive positions of a moving object. 8 L& A' e+ I- Y4 h; T+ E; S- J! V(3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. 4 v+ T5 b/ j+ Y$ y(5) The actual path of an aircraft above, or a ship on, the surface of the earth. ! r' a- u# b# Y @4 D& C1 {0 xTrack ; k5 f4 {8 P/ t+ G& ^Assessment The Track Assessment looks for anomalies in an object’s track data. An anomaly 4 N5 l7 a8 {! h5 w' N. Uin the track may indicate a hit. : w4 h% K8 N$ C; o/ K1 ETrack, Birth to 6 w# |( @+ F: D; D, @8 WDeath The maintenance of an associated track through all phases of flight (i.e., boost to reentry). % X6 v% }6 N/ r: C" v6 pTrack Correlation The combining of track information for identification purposes, using all available ! p9 y, `; O& `7 d' M% O* ?& Idata. # e) t: b! C9 E4 f. RTrack Extension This term usually applies to improvements in track estimates by use of new data. . F) g- E/ R3 A9 ?+ S+ S9 rIt is sometimes used to describe a process of target extrapolation to a future time 9 j7 p* h8 e2 D1 D8 xor place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 3 ?5 ~- r0 y8 h# ^3 G7 ^% j# ITrack 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. Track File-Track History A set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. 3 y- k8 o$ [. \2 ]5 ?4 MTrack Formation The process of determining the track or tracks of detected objects. It is usually a ( Y% ^( V, e% t& m; C, jthree-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 any other features of interest. ; J/ |. K* |% I4 F6 i$ YTracking and 7 Q' q1 G+ J! \6 YPointing Once a target is detected, it must be followed or “tracked”. When the target is successfully tracked, a weapon is “pointed” at the target. Tracking and pointing 4 z9 q1 _. ~& Z. w) xare frequently integrated operations. Tracking Range (Max) The maximum line of sight distance at which a sensor can maintain track of an object. ( {& k( \+ |6 n i7 zTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector 1 B/ U, ?( D+ Jof an object. The process typically requires observation from a number of frames. 8 ]3 Q6 r6 S$ Y+ cTrack Production Area An 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 between 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. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. 3 e& [: }* M+ x& T2 }Traffic Capability ( e! L. u1 |- L: jMaximum 3 I& L8 L. w! m; D& z7 \, W# fThe maximum number of objects per unit time which the sensor system can $ I. Q; e( U6 V9 h T/ c3 Dmaintain track files. 6 P! h/ q0 }; K3 ^3 E) L' ZTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high 1 U: B3 B! C1 y. {# u/ G9 B2 t+ Bendoatmosphere. 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. : o) S+ F; f8 |# JTrajectory Histories Trajectory 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 305 9 w7 o5 Q* `$ ?; l7 CTRANSCOM [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. 0 c) \" v9 C# z7 l9 oTransition to Production % Y. _8 i Q( m2 H8 KA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a + {1 q$ z. [) ~- K2 `. xprocess consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) / Y- s# ?5 J, }; A; r1 h# hTransmission Security (TRANSEC) That component of security, which results from all measures, designed to protect + H9 E: C6 E8 u1 l2 U1 s2 Y# a9 S& ~communications transmissions from interception and traffic analysis. (See ' j; I+ R) z) g4 {; B7 w, A8 @COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative speed of the fluid is subsonic in some places and supersonic in others. This is 6 t" [) j/ Y; A# Cencountered when passing from subsonic to supersonic speeds and vice versa. 8 Q& j2 ], `6 C! ]# JTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. 4 l' o1 D1 M) N+ ~; n" v9 kTrap Door A hidden software or hardware mechanism that permits system security 7 N7 D5 \* y) W8 L1 ^" @mechanisms to be circumvented. 7 A3 l9 \' W2 R( A- p8 G+ TTraveling Wave ( Y; f/ m0 s% m4 `Tube (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 0 h, x$ C |2 L3 ]stream to the wave; the tube is used as an amplifier or oscillator at frequencies in ) I# e7 L# R+ u$ {% a- F. Athe microwave region. 2 Y" ~$ L+ Q' C2 ~Traverse (1) To turn a weapon to the right or left on its mount. 0 D/ u3 K1 q2 g# ](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. . g& c; C4 ]( j9 ~Traverse Level That vertical displacement above low-level air defense systems, expressed both 8 F" q% o+ K6 F* v" ]* d5 H4 Tas a height and altitude, at which aircraft can cross the area. `$ W- K( h: |4 f2 `+ aTRB Tactical Review Board. * Z8 i& D- G( ^/ W& sTRD Technical Requirements Document. TRE Tactical Receive Equipment. ; N* R8 t" D" D1 M' k: Q- R) g2 `' iTREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. ! t) C X" F5 t! uTREM Total Radiation Environment Model. TREPS See Thrusted Replicas. 4 N* l v+ ^/ K- g/ Z8 {4 mTRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T , v" b0 M8 s- X, s, C' i2 ]306 4 E$ z2 c( l5 u GTRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. TRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). * c0 U7 F4 L+ S4 C! aTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. h% k$ ^9 r2 m! @8 P, N8 QTRM Technical Reference Model. ; c- b2 b; B% f' n" v+ qTRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. Trojan Horse A computer program with an apparently or actually useful function that contains ( Q+ j" M# h% R" ^0 zadditional (hidden) functions that surreptitiously exploit the legitimate # j' Z [3 h. ]! rauthorizations of the invoking process to the detriment of security or mission performance. 1 d: v9 u0 K4 V6 ATROPO Tropospheric Scatter. 4 D$ n& R5 i; |* Y8 v4 E5 u+ gTropopause 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 ^0 y$ N, L; v/ Y8 }tropics. (See Stratosphere, Troposphere.) ! z% N6 Y2 f' P+ i" U3 yTroposphere The region of the atmosphere, immediately above the earth's surface and up to 8 ?1 k2 @# b2 z8 U9 Ythe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or less complete. ; K- ~2 `* D5 ?; |& G- S! Y ETropospheric - N4 k, G: f: G. U! f$ c+ h4 iScatter The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. + d3 D& V: d7 P; |) t# ]! N( _TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. . x: c- T1 b* z# ](3) Technology Readiness Program (pre-acquisition program status). 8 l3 l4 I: N$ T" I% S! V(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. . h7 q6 t# ]* Q; G; O3 nTrusted Computer $ ?8 {, x. ~# A5 I/ gSystem/Software A system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. - I4 b+ n5 g2 t+ a4 v7 HTrusted 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 of the Trusted Computing Base and cannot be imitated by un-trusted software. . x! o5 F) R* e7 V. v: ETRW TRW, Inc. & m9 {7 C _* w/ T5 |TS (1) Terminal Service. (2) Top Secret. 4 \6 P+ c8 c0 ^' A5 fMDA GLOSSARY, VER. 4.0 T $ Q o5 h( X0 J) @ _307 * E/ x( j( |* R# y, @. w8 dTSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. 4 O9 j* |/ \6 B, A7 JTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. 1 u' t6 ]% ~+ Z- F7 H5 t& UTSDE Tactical Surveillance Demonstration Enhancement. % C: B5 I, A* O' t1 {TSEU Technology Seeker Evaluation Unit. 9 w3 E: V# v! f; ?7 kTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. ! \. o* A F9 ~TSMA Theater of Strategic Military Action. TSP Target Support Plan. - m6 `" r) w9 p* T X( W7 `TSPI Time, Space, Position Information. & E/ H* B" A1 X. }4 u% MTSR Target System Requirements.

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TSRD Target System Requirements Document. 9 k2 g+ v0 e6 @) c5 o) _* `! V [TSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. ( Q$ \8 D* F! R( L7 Q7 A: [TSWG Target Signature Working Group. 6 }6 S* C6 h' iTT Total Time. 8 u4 k7 _( Y0 e1 R; w. OTT&C Telemetry, Tracking and Command. ' p0 W5 `# j/ s0 T$ X( v* \TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. . j5 B# c! e8 m$ A" p3 y1 ~' ?7 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, * z- ?; }8 {& ^( Q5 m2 pwhich have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). / M/ f: Q2 C7 a( X& p1 lTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. 2 h0 [0 M3 {% ?/ ETTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 8 W6 a2 k& @. Y; p- B308 6 J( y2 D# z1 J; l. `6 TTTV Technology Test Vehicle. ` h% S2 d3 B! i1 iTTY Teletype. 8 L: }, N8 v, l9 u7 nTUG TRACE User Group. 4 e" w F5 D/ H$ [! eTV Thrust Vectoring (rocker engineering term). # t+ T) f" f# @4 lTVC Thrust Vector Control. # k& Z6 u- f4 e- r2 BTVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. ) N4 m7 @# U: |1 g6 e/ }% e0 ETW Tactical Warning. / G% K6 E, z! w1 r: D7 x1 bTW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. , ~- v' |4 }5 A6 T+ NTWG Technical Working Group. 3 d6 v1 i" Z0 q1 V9 g! \% ETWS TOMAHAWK Weapons System (USN term). + p; I; G1 p9 t" f4 rTWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). : [' F' n8 s) D4 Z+ T: \TY Then Year (PPBS term). . v" j( q/ o- @1 `TY$M Then Year Dollars Millions. Type A - System Specification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission requirements of the system as an entity. Type B - & K* A! d/ m% j; y' {5 [5 ]* xDevelopment Specification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the I9 n3 z& q* \7 K$ Xdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of - p+ S q2 X$ ]$ V: l$ mthose characteristics. 6 A6 T, ]- K! v! z" `* xType C - Product 4 C. j6 D& F% I- d& m+ qSpecification . q& g- m& p4 M6 W* ?9 m# I/ RProduct specifications are applicable to any item below the system level, and ) {, k+ X* O4 Y1 S0 _* S9 A: F4 c1 Smay be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of " f4 |! G$ i9 ^2 m9 Uitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. # V, X/ w+ W! t. tTyping The act of recognizing objects by measuring a set of observables, computing a set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 4 k+ }3 ^2 ?( d; p, g309 4 f! M- x: R9 Q$ {- i/ [8 h$ FU Uranium. 7 m L+ |) T4 p, v# MU&S Unified and Specified [commands] (pre-1996 term). 0 y+ a7 @" p/ d: }U.K (UK) United Kingdom. 5 U/ K6 q M' |5 B3 H& P; HU.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. 1 z% ^0 K# }4 p. X$ L8 h6 rUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. ' `& F1 c9 {6 r5 S' C7 fUAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. 8 k3 a& t6 \0 L$ T. vUD/ASD United Defense/Armaments Systems Division. % C3 O' \1 X& _3 ~% D3 z, _+ G" ^UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). ; u* U1 z; q' N) TUDS Universal Documentation System. A standardized comprehensive tool for stating and coordinating program requirements for testing MRTFB ranges, as well as the capabilities and plans of test ranges to support program requirements. It 6 {5 i2 h% G. c1 H1 E5 G" dconsists of a series of six planning and execution documents: 10 are the + r/ n& e9 k/ c% iProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the 8 N# s$ q3 e( ?* U6 }Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. % `6 e0 _" \& O/ JUEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. 7 w) b+ `. c/ [6 NMDA GLOSSARY, VER. 4.0 U & B8 T) q% |! R( T310 2 {) j3 P/ d5 c! M( X9 ~UFG User Focus Group. 8 Q2 D; q1 ?/ i; B1 F0 HUFO UHF Follow-On [Satellite Communications System]. - ]- t' I4 p: i( [+ H8 JUFP Unit Flyaway Price. UGF Underground Facility. ( b4 w6 U, V O- |9 n! cUGS Unattended Ground Sensors. 6 M6 f1 |# Z& _9 Y. O: GUGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. UIN User Interaction Node. 1 q! `$ q7 O, x' ?: l+ _1 N; BUKAS (1) UK Architecture Study (2) UK Associate Studies. ! J3 H( {0 d4 S3 @0 k/ l MUKEADTB UK Extended Air Defense Test Bed. + ] d% B t: _* i3 z0 K( vUKTB United Kingdom Test Bed. 2 Y, R- s2 m4 y9 pULCS Unit Level Circuit Switch (SINCGARS term). ' M& S1 @& I* b; ~5 n3 @9 n; [0 R! ZULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. ' k5 N# u0 n. U5 W' ?- [ULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet ( W7 B! m* A( N& c; g" D(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). 3 d/ h4 {$ b9 _' l! j0 N9 K; bUMD Unit Manning Document. 7 g5 u: O6 j4 m9 D. `7 uUMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. # u7 }* s7 Q5 M3 hUNC United Nations Command. Unconventional ! _6 L! d- `8 O# S) X3 rWarfare A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare + z) ?4 |$ W d# Y& O2 Q9 {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. ( s+ ` |' A5 P/ y( ]. [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 + ]- H0 {- \: [2 Umore Services or elements thereof are acting together. 5 A; t0 Y( Y7 b9 ?, y: K6 VUnified Command A command with a broad continuing mission under a single commander and G6 }* l4 q/ l- b* Ocomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary 3 Y" j- N0 _8 o s; F7 u2 bof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 UNISYS UNISYS Corporation. United States Army 8 O3 G+ P- |$ j/ m! t- S6 ]Space Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States % o! k/ l+ N0 Y9 B1 c; G zSpace Command : J8 o( |8 O i+ H(USSPACECOM) The unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. - q- x& Z8 S; }& V! Y; f. L1 W. q5 QUnited States ! n! V& s; W# q1 q2 [Strategic Command (USSTRATCOM) The 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 Transportation Command (USTRANSCOM) 8 B7 E+ \) X7 |- tThe DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of & U+ m, w+ P! i5 i( e4 Cwar. It is also responsible for providing airlift, sealift, surface transport, and * @" O2 F- i2 e7 eterminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces 7 `4 b/ Y& `2 ion a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. : B( D! i' F _; M# f% c0 C f/ OUnresolved : l4 @- O1 i, [" a! j7 b- SObjects Objects so closely spaced with respect to the sensor focal plane as to be - O, q) \, h6 X$ }indistinguishable from a single object. 2 [) ^) T6 S3 j, |. ]! mUNSC United Nations Security Council. # w" y0 k5 `3 z0 b0 y5 a& C$ @; W8 L/ ZUnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). $ z2 d) K7 b7 z1 T6 JUOES See User Operational Evaluation System. & T: X" X: e* G" OUPD Unconventional Passive Discrimination. 4 s; W) r" r4 G" S! l2 [# IUPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. ) A- k, m1 v [; yUSA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U 1 F+ o* A; @0 j$ O/ {312 USACE United States Army Corps of Engineers. ; |3 |- z0 i/ K1 O5 p aUSACOM United States Atlantic Command, Norfolk, VA. 9 o3 [7 J, q1 Z1 W! h h4 tUSAF United States Air Force. / j6 s. R) v. r+ z* i- z4 |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 # N! g% A$ ?2 u) p7 ^4 zSystems Command /SSD. 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. USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. " r& Z7 a: t( @, QUSAFE U.S. Air Forces in Europe. / T, G. \0 g( c2 gUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. - ?% G# z8 W: r- _9 R9 y: AUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. 7 V4 ]) `1 |. q$ B @USAMSAA U.S. Army Materiel Systems Analysis Activity. $ C* j U# F o) D) J$ a& iUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. ; r( t5 ]8 b/ z% |* A- QUSAOTEC U.S. Army Operational Test and Evaluation Command. 4 d" _" `5 \, n9 [: l8 vUSARCENT U.S. Army Forces, U.S. Central Command. & u1 t. H; i% s' d7 A& M EUSAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. 4 D% [1 e' `* P6 a) T+ i: z- oUSASDC U.S. Army Strategic Defense Command (<1Oct 92). M4 v/ r7 a+ \2 F$ p. UUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. ; q% ]9 i; i D8 Q# n; sUSATRADOC U.S. Army Training and Doctrine Command. : G- b/ X) H' D& qUSB Upgraded SBD. # o5 [7 u* U/ V9 F( B$ xUSC U.S. Code. USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 9 T: c8 B6 Z+ [) E313 ' u5 u$ C" O8 L, `) t7 hUSCENTCOM United States Central Command, MacDill AFB, FL. : e& {5 Q3 G* N+ v- IUSCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. . K- ~8 g4 D' A2 J4 EUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. # h5 d8 k: j" e/ C1 U# wUSCINCSPACE Commander-in-Chief, U.S. Space Command. - s* n% K7 j: I- {0 L' G- @3 Q$ X! P0 a1 RUSCINCTRANS Commander in Chief, U.S. Transportation Command. * _) m! e6 P5 H8 o9 q9 h8 wUSCS U.S. Customs Services. USD Under Secretary of Defense. 3 I* P3 L% ^' v9 `USD(A&T) Undersecretary of Defense (Acquisition and Technology). 8 ~2 V3 P" X0 G4 Z% S pUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. ! ~; [0 z, s n' \; e3 w7 F# JUSDA United States Department of Agriculture. 5 u* q. _, y) m# yUSDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. 0 m7 t" w) X+ s, F H# o3 eUSDR&E Under Secretary of Defense for Research and Engineering. . L' h1 f. u* h* {- e Z4 H2 U3 rUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine 5 X% n( v7 o: d" v# Z(hardware) or program (software) that is compatible with a person's ability to + \" y) x ]. D1 v- p. i6 S: A' xoperate it successfully and easily. User Operational Evaluation System (UOES) . y) n" K- ~' h) x5 kPrototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) / b. ?3 O" ?) P5 _8 W# ^1 Tcontingency defense capability should the need arise prior to completion of the [ O' K' s5 w6 E5 vnormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. % I! Z' `. g* YUSFJ U.S. Forces Japan. 0 b& t) r/ f) e! jUSFK U.S. Forces Korea. $ Y( M& Q, C# _* p6 ?' zUSFK/CFC CSFK Combined Forces Command. # E0 b# Q7 T# C+ b- rUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 2 F9 q9 u0 b* v5 @8 H314 ) g1 E) K6 c- O+ c9 K( {* dUSLANTCOM United States Atlantic Command (Now see USACOM). ) W6 ~( `( Q) y$ M, B2 G2 KUSLANTFLT U.S. Atlantic Fleet. ( _. d b/ \" n) a% p& }0 O1 sUSMAR- + M4 w5 z/ @& c* b0 [: PFORCENT U.S. Marine Component, U.S. Central Command. 4 Q5 U4 b5 a" Q$ N) _; c: fUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 5 ~2 _* [7 D6 C) [# v% x* HUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. 9 r+ X p3 a. `2 x9 n* [USN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. # K( g+ e* N* v6 s1 z6 CUSNAVEUR U.S. Naval Forces, U.S. European Command. $ K: H/ h0 ]* `( j$ T* ]+ D$ ]$ sUSNIP U.S. Naval Institute Proceedings. * Y* A [; P% J6 [USNO U.S. Naval Observatory. ; i/ b0 t$ k7 c6 S& Z; I( {& |0 AUSNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. $ d# V/ A+ d, ^5 H& yUSPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. ' Y2 U6 R0 P6 v0 m6 CUSSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. 6 S; P& ]& y, Y1 @$ \USSPACECOM See United States Space Command. ! X( f5 ]* O0 y, X: ^/ ~. W# d7 tUSSS United States Secret Service. 3 {! p( a! n# I7 Q; a2 s- zUSSTRATCOM See United States Strategic Command. 7 n2 O( L0 E: \, K! u9 g" m3 n9 eUSTA United States Telephone Association. : s# v S$ g, j u" m* M; ?USTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. % V; g6 d) O! V+ o4 m7 ]! M; t6 Q! [* [MDA GLOSSARY, VER. 4.0 U 1 X4 R# `1 a. u/ B. ~315 UTM Universal Transverse Mercator. + Y0 j9 G' W+ M* v" sUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. ; n" M7 A9 W8 e$ SUUT Unit Under Test (ILS term). UV Ultraviolet. UV Electro- 3 D: |. {( Y/ H7 KOptics 1 G2 _& D7 U4 y0 p- I) G; [9 MTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. / r' F) R# R! r0 E. WUW Unconventional Warfare. 0 q8 g: ]# m% Q, j2 P ^MDA GLOSSARY, VER. 4.0 V 9 e2 k3 T* f8 \: @4 w! S: `316 V Volt. V&H Vulnerability and Hardening. 2 l, z ~3 d: b) { E) lV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. 8 M, S" g7 F3 _; r8 G' XValidation 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. 5 |% e( E5 |! A' CVAR Visitor Access Request. , [9 t" v6 |1 B$ M% Z2 Y0 R$ [- ?Variability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical factor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). 7 z+ U$ S! b, V$ e$ g# m# e% SVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. 4 l, A2 o0 t) o4 b+ n5 r9 `VCS Voice Communications System. 4 a! m4 V0 w; `. A4 xVDC Volts Direct Current. VDD Version Description Document. K( a7 Y9 F0 |3 \VDU Visual Display Unit. VE Value Engineering. , \- T$ m0 o' `6 p& x8 f0 SVECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering " {* ~- s4 l U3 Drepresentations of a T&E resource accurately portray the characteristics, calculations, logic, and interactions of the system under evaluation. * L6 F1 X& `: j/ S6 Y8 Z(2) The process of evaluating a system or component during or at the end ! Z0 I+ Y) u6 t5 F" `/ d/ ^of the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. VFR Visual Flight Rules. , @" x' Y! t: C$ K& w' v8 hVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. 5 A% \1 C; l4 F7 Q& Z* OVHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 3 a" H* \0 @1 S- N8 Q0 eVIDS Vehicle Integrated Defense Software (USA term). 1 R2 l6 ^# w" @+ p% j! d0 J3 IVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 / e) i# G/ F9 J% n! uOperation 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 cameras capable of tracking targets that can be detected, identified, and ' R) {1 P8 t; J0 u, J6 _) R4 xprecision-tracked with the ANTE processor. VIM Vibration Isolation Module. " a# k! V1 O5 k( [4 v9 eVINSON Encrypted Ultra High Frequency Communications System. VIS Visible. + B/ o1 B! R/ b5 S. aVIS/UV Visible/Ultraviolet. ) `+ _$ f7 B; \" o( `Visibility Range / J- [3 ?. d; X1 l+ O% M& [$ n(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 clarity 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 ; [7 V: H$ x/ S7 C# }7 H9 X7 for fog. The visibility on an average clear day is taken to be 12 miles (19 7 Y; }6 \4 B- S$ ?kilometers). C4 ^ J" I! A* B' N" G, r5 QVisible Electro- 6 t% n2 a) U+ P: c; ROptics 7 p4 ]1 E+ ^, V- ]( E4 o$ m" NTechnologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. ! O6 o3 j) c9 k/ [$ T3 NVLAR Vertical Launch and Recovery (UAV JPO term). $ ~' @, P) m) c; sVLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. 1 I9 k9 o. t7 vVLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). VOX Voice Actuation. " m8 z' Q2 u& i3 B& u. W1 nVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. 9 \4 p5 j6 R4 q7 M' sVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. & q: W: ` [8 j" v) HVUE Visible Light/Ultraviolet Experiment. 5 y% u/ P- g4 S9 Y7 X" @( cMDA GLOSSARY, VER. 4.0 V ' W" T* t$ w" g' o8 _! o9 s6 l( T318 5 ~6 a0 Y! {, b( H( pVulcan UK bomber. 8 |2 Z( K0 C& {1 R8 m! E0 a' JVV&A Verification, Validation, and Accreditation. 7 }0 @+ M$ }3 X) c3 hVVER Pressurized water type nuclear power reactor. : J) i7 ?0 a2 o% I! f- |VVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W 319 . q" T. ^( D3 W, }$ O; ?$ VW/ With. w/o Without. W/TD Warning/Threat Detection. ( F; W1 L F/ Q) ^1 R: @$ jWAA Wide Aperture Array. * j$ C. f H, O0 r! p9 f6 ~WALEX 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). WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more ! h+ O5 Y9 i& C+ t' \( I5 h. gopposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. % n. y8 T* R" \! NWargame 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, " A0 q. `8 B0 b) ?validation and accreditation, and support CinC/Allied wargames and assessments. 5 b: ^7 T& O0 mWarhead A weapon, usually thermonuclear, contained as the payload of a missile. # a0 R" ?" U t. WWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related components. WARM Wartime Reserve Modes. : {$ U. P2 N9 v5 u: `0 E9 ~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. ; t3 Z8 l9 u7 r" D9 d; sWarning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). : G2 h* d2 ~) K. BWARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve 7 t2 c4 {5 Q) S {4 J5 R9 I5 V' EModes (WARM) 4 I8 l5 M+ v: C, C0 o- n# X2 W6 nCharacteristics 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 5 Q) I5 ^% G& e2 d# q/ zcommanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for ( [6 f A, F7 f" }0 Rwartime or emergency use and seldom, if ever, applied or intercepted prior to 8 F& q2 I2 `$ w; jsuch use. WAS Wide Area Sensor. 1 W3 x# t) I! U+ N. Q2 VWASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 WASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective 1 i. G7 m: K- j- Z5 v5 I, x% jin contributing to the defeat of the offense. Watch Condition 4 Y; y3 g+ s2 ?9 w! N) R- F(WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. ' W4 ^0 E* g2 c/ ^5 IWATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. ; v& b% W; f5 C8 iWavelength The distance between two points having the same phase in two consecutive ! Y' P8 J9 c$ I$ @9 T5 ccycles of a periodic wave, along a line in the direction of propagation. WB Wideband. # O8 N' R' A8 \. e( w' y$ V; gWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. ) U- J$ U$ s, Q1 s) j% jWCC (1) See Wing Control Center. (2) Weapons Control Computer. 2 R! z S( v2 g* sWCG Workstation Computer Graphics (Computer term). $ E* b# D# e# \0 e& z5 nWCP (1) Weapon Control Processor. (2) Weapon Control Platform. 7 Z( |4 R1 |8 n0 s2 VWCS Weapons Control System. . W" s8 T5 z3 v( ~5 }WDM Wavelength Division Multiplexon. 3 {5 w2 I v, I8 g' a% I0 v% QWeapon Enabling The set of control functions without which defense weapons cannot be . j* v& D4 {3 [7 {( |. _launched.