航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T : p# y+ P/ ]. |- @. h1 z$ |- [298 Theater Missile Defense Council (TMDC) A consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for + Q- M k$ V% s1 d1 [6 wAcquisition/TMD, membership includes MDA TMD Directors, representatives of , \. n/ w7 s' W2 W: y& r# G9 Eeach applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. Theater High ' t5 P8 `4 |2 n. P4 G& H6 yAltitude Area Defense System (THAAD) A ground-based, air transportable interceptor system that will provide wide area ; d3 C# G6 o9 e' j/ t2 o8 {) Qdefense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. Theater Missile 6 P" Z8 l! ?/ K, U& l(TM) # w5 r$ E' @* kA 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. ) L$ k8 G8 e. H7 b9 pTheater Missile Defense (TMD) # z7 z) y3 W3 h5 C/ X& k. |" TOBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. ! X- k' n s; QTheater Missile Defense Ground- , o2 N' J1 @. S3 T0 b- `# e! oBased Radar (TMD-GBR) . x* \0 ? D0 B1 J) iA ground-based, air transportable sensor that provides search, tracking and 2 f0 S' A$ h2 N' {0 y- [9 {" P9 H( Ldiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. Theater Missile 7 z6 F r" N4 B M# cDefense Initiative 9 ^9 \ x4 F* e& d( n' ?(TMDI) $ Q& `4 J" F( t8 }' g0 D% gAn initiative under which all DoD theater and tactical missile defense activities are carried out. Section 231 of the National Defense Act for Fiscal Year 1993 6 t' d, @: ]$ j+ R* j3 x! y(Public Law 102–484) directed establishment of a TMDI office within the DoD. % f$ Q6 |" ?5 i! w% t* v2 u3 A, ZTHEL Tactical High Energy Laser. 1 p. n; V- A: V) I7 e6 r) T' LThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally z; P/ R: h, S7 S* a: `3 ^* x, b( j# Hexpressed in terms of calories per square centimeter. ; W- d( @5 g5 k C" z4 QThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. ' k" F% r1 B, U2 q4 fThermal Kill The destruction of a target by heating it, using directed energy, to the degree 5 Z, \6 }( m8 B4 ~+ Rthat structural components fail. ! |) W, b( d/ S0 B5 ^Thermal Management Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. + m3 G4 p8 h$ I" Y6 }Thermal + g) t% G! ~" qRadiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the ( ~$ X2 t4 S/ cfireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. 6 n5 Z; ?1 N& v- w0 AThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, , J( ~: P2 b8 Q( Pemitted 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 ' M- ~8 G: ~$ R0 a6 N8 v6 Cabsorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated 4 b, ~2 |# d" P+ V/ d/ dregion) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; it is a region of more or less steadily increasing temperature with height, starting at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the / r- ?3 v, E0 [/ u9 Vexosphere and most or all of the ionosphere. 6 R/ R, ]2 L( M7 t$ `3 |1 D4 QThreat Characterization An assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor (Threat Tube) 8 Z1 ~8 k' J1 L# ~A tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management computation. 1 h6 S7 g6 P0 s) PThreat Scenario A hypothetical example of the employment of threat systems against ballistic 6 P- R! r9 F \& l1 V) H: A/ Mmissile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable 7 R5 r6 g: l" ]2 N! ~9 m. Pvalue (threshold) required to satisfy the mission need and a performance / h: E3 d0 z+ q% c0 Fobjective. : l( J! Q. P2 U1 n: {: E& k% yThreshold $ G: D( C: [4 E& tDefense . ]2 v& W( T1 x! a+ k {A defense strategy that concedes that the target can be destroyed at a price $ c* [6 Q7 N' n( Y. Z S0 K# gthat is not prohibitive, but the presence of the defense is thought to require the ( A5 O( G) C3 K" ?# n+ Z. boffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. + t3 c0 |6 ?! I0 Q' R2 _Thrusted . S6 ]. c$ [0 x. @: X& C! JReplicas (TREPS) 8 q3 r3 B+ h. w! J. d% J0 |Conical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. $ {6 o$ T; t! r$ j* ?TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. 7 r' I3 X& I# a0 x/ D* T(3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. 9 J! N) j* ]$ `) _7 M! r& GTIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. 2 |$ {' }( N aTier An integrated set of SDS elements that address a particular phase of the threat $ q+ O) w* ^ i& y r+ D9 a(e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. + s& a5 P- r0 DTIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. + s' |! ~& F" i' E. n2 hTIL Technical Insertion Laboratory. 7 K) v, E j& v1 B8 E2 f- ?0 zTIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T $ u9 Y) N, q+ N; U5 `300 , g4 B9 p! N1 U% ~9 g! I- H; A5 _Time-Phased 9 F9 S$ Y2 Y+ R1 W! e) A" \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 - {' g$ b% f2 w8 W$ b6 }debarkation or ocean area. 2 [2 a; |7 N) ]1 h. S$ ?. o. lTime of Flight (Max) & S6 p) i r+ n7 ]; p/ U9 PThe 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. # {8 a, ~7 U+ q2 G; X% dTime Sensitive Targets % M) X7 m; S3 LThose target requiring immediate response because they pose (or will soon 1 S5 m' j$ ?/ m) H& p$ @pose) a clear and present danger to friendly forces or are highly lucrative, . Q) m b1 _# gfleeting 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. 1 j; D. s* R n9 r( GTIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar . P& X; p+ ^4 v6 G! s' ]Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. , S$ D" b5 O4 A+ lTIU TIBS/Tactical Interface Unit. ( b7 y0 s9 W+ L7 qTIWG Test Integration Working Group. (U.S. Army) 1 ^% d7 V8 q1 q1 q8 TTL Team Leader. 1 O; ~9 |: r7 M- eTLA Time Line Analysis. TLAM Theater land Attack Missile. 6 W E: t5 ?+ a: s& O- VTLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. TLV Target Launch Vehicle. & L& E$ S" ?% [0 A7 P: @# b5 x$ cTLX Teletype. " m6 ]+ c6 m( b0 p6 E* ~2 {8 |TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). * j8 e$ B0 C' M/ n! n) m L$ NTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T ; A2 G, a& ~- _" E+ ~301 1 W% ~8 G- z) Q a+ D% }5 i+ qTMD C 3 I Those assets that provide connectivity between and among Theater Ballistic . ^& W8 [% }- }. t8 L& x* I- \Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). ' l6 Z. A! b9 ]2 e C+ j# M- }TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. 3 {$ s2 I1 |( F% n6 z9 ~TMD ITP TMD Integrated Test Plan. - V4 Z' _5 e* v0 K/ _TMDAS Theater Missile Defense Architecture Study. k+ y& ~! X1 }0 y6 F# k5 B* MTMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). + R8 P& m& N9 l! {TMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. 6 T* c5 B" ]$ NTMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). 4 z+ w- h# [) Y8 xTMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. ; q2 J7 c2 E% g8 D* @' y7 ITNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. b/ o' O5 O' r( q$ o" ~TOAM Tactical Air Operations Module. + I {% w1 a V, iTOC Tactical Operations Center. TOE Table of Organization and Equipment. $ i) ~2 i! q2 E) Y* M3 YTOF Time of Flight. TOI Track of Interest. TOIA Task Order Impact Analysis. + c" F: l! j2 V, u) C! {: JTolerance The ability of a system to provide continuity of operation under various abnormal * ~5 i) K0 V' s2 q4 econditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. 8 H. q* S% H1 q+ U0 XMDA GLOSSARY, VER. 4.0 T 1 R2 o# F8 S4 B302 0 K4 M9 I5 ]% R$ y6 PTOMD Task Radar Management Details. TOMP Task Order Management Plan. 3 k9 I8 P; ]# f; f$ fTOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. 7 H2 {1 b0 @; S/ uTOOL Target of Opportunity Launch. TOP Task Order Plan. 0 Z/ g, b& f! \- ?# @, hTop-Down Pertaining to an approach that starts with the highest-level component of a : p& ^( ~% L( c; O2 chierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down Design The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the desired level of detail is achieved. ; A% \: s5 Q& P: e7 \Top-Down % S3 d7 D: L* \+ r: Z0 _* kTesting ; ^ p0 q& J2 C- VThe process of checking out hierarchically organized programs, progressively, , O0 J5 W6 t4 J) {: Ufrom top to bottom, using simulation of lower level components. I9 n3 Z; {3 {$ Y! `: i* WTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power # @# ~6 O4 L% X/ V3 |4 atechnology to U.S. BMD applications. 9 |" t8 m" O& a: U) p4 ^TOR Terms of Reference. `& E8 k- s* O' q, B) E: f eTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target / J' ~! N% _: {, a. w; \$ lTotal Obligation Authority (TOA) A DoD financial term, which expresses the value of the direct program for a given fiscal year. ; w( \# ^6 d9 R4 b: xTotal Quality & V3 Z3 a8 i4 z' G) J3 bManagement (TQM) 3 A* {6 T0 g v8 w; C- BA management philosophy committed to a focus on continuous improvement to % P3 T& I: l3 k9 xproduct and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. 3 N0 l3 ]/ }! u( Q2 V7 P& dToxicity 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. . `! Z+ V4 ~: T- v+ E) F! c% S) STPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. 1 R+ k9 | R6 P1 A! |0 q! p4 J4 d7 K% ~$ [TPD Mobile Tactical Radar (US). 9 o) q) d+ H4 {7 qTPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 303 {; h: S8 r. _* ]3 Z" [- \# e5 VTPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). * h; E7 V1 a* {3 }) G$ p$ ]TPFDD Time-Phased Force Deployment Data. . k2 B/ k) u' t( I4 W: L$ }3 CTPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. g" Z1 t- p0 T7 [$ P4 h7 R; KTPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. $ B9 F" A# I' E2 M+ q7 l! }3 \- HTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target , [* E& s% H1 y5 g$ Z0 cPerformance Report. TPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) TQM Total Quality Management. ( r, [( W/ G1 u! QTraceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path 1 A, D/ b+ X! P6 \/ G0 e(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 |! }& n4 C; b% r' Q/ s" p* ~relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. . Z8 I6 d6 @- y1 C4 M5 |- h, Y, B(2) To display or record the successive positions of a moving object. , ~2 s( k$ d& R5 q(3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the 0 k0 V6 }/ z% R Wearth. . U/ A- _( w, h3 VTrack + M8 `! ?/ Z3 t) W( f e- p& ?8 mAssessment " x; F. r& h+ g: p2 S$ U+ vThe Track Assessment looks for anomalies in an object’s track data. An anomaly 0 l( E0 z: `. z ^" vin the track may indicate a hit. " D( x7 m4 e7 X; q; ~" PTrack, Birth to - ?. f- m3 T. {( QDeath 3 M: F! ~" Q M9 |+ B% [( q6 tThe maintenance of an associated track through all phases of flight (i.e., boost $ j) L$ j1 h9 O* nto reentry). " y& t% l$ z6 t' q. ?. H7 JTrack Correlation The combining of track information for identification purposes, using all available data. Track Extension This term usually applies to improvements in track estimates by use of new data. It is sometimes used to describe a process of target extrapolation to a future time I# k! a# a# i2 ?' kor place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 6 B8 e% h+ `, F; y3 JTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS ! D$ w4 T* X5 X- v @$ ~measurements with irradiances with confidence of association; or some subset of the above. Track File-Track History # d7 Z$ `+ d: k# NA set of individual track reports on a particular object, which taken together 9 K* i; e3 x/ R( E/ c# tproduce 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 by filtering. Tracking The act of generating and maintaining a time history of an object's position and * k4 C& {% O1 v4 k$ y( \0 [8 N& ]any other features of interest. # O% N& j5 y: V" kTracking and Pointing 9 `" E; Y" k D, ^6 @; @* Q6 U# jOnce 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 , T8 F5 n5 p$ K% Z! qare frequently integrated operations. Tracking Range (Max) 3 _0 M( U; E4 C- l5 \! L5 hThe maximum line of sight distance at which a sensor can maintain track of an : w5 r! i3 P# h0 G7 \object. Track Initiation The formation of the first or initial estimate for a sensor system of the state vector of an object. The process typically requires observation from a number of & ~! v9 C* b* Q1 w4 Fframes. Track Production 6 e* T4 `8 A1 R/ }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. " H$ i! ]4 Z% Y9 W6 JTrack Telling The process of communicating air surveillance and tactical data information & }8 R2 \; q( z* d7 n2 }. kbetween command and control systems or between facilities within the systems. 3 Y$ T. [) r$ f/ L4 S" E4 `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. 1 O7 k8 m- Q' p7 HTraffic Capability Maximum 9 s& ^4 Y/ n+ P/ l8 RThe maximum number of objects per unit time which the sensor system can , f$ \; P$ B3 w' A: V p! W$ _( Umaintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. Train Threat geometry with objects placed in a line (string) along the velocity vector of + b8 O: Z* z G% B8 creentry. Trajectory The curve described by an object moving through space. Trajectory Histories ; h p- ~6 B& N3 z* w; e/ R3 RTrajectory 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. , F; ]$ [# [9 r4 \" QMDA GLOSSARY, VER. 4.0 T 0 ]( l/ z8 |" v$ S305 # J3 g) r* d- `* m, Z \, vTRANSCOM [U.S.] Transportation Command, Scott AFB, IL. ) V' L# |- P- P# OTRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. 2 r: U1 N) O' V5 W" PTransition to Production A risk reduction process during which the program shifts (passes) from . f' ]& e7 ~0 ^development to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) - L+ L) Q- Z) n1 v4 eTransmission ) j/ F" I& _( e' C$ A7 ^Security : f/ A+ F" `& ?6 d' e(TRANSEC) 6 L$ ?" j5 d& b, TThat component of security, which results from all measures, designed to protect communications transmissions from interception and traffic analysis. (See / J6 e/ }+ u1 b( y: K: ECOMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative ; g; l+ @7 o8 f$ x, Xspeed 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. TRAP Tactical Receiver and Related Applications. % s3 _8 S3 i6 s+ [, ]% D8 ~: }" |Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. Traveling Wave 2 Q/ ^$ O3 | Q3 DTube (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 stream to the wave; the tube is used as an amplifier or oscillator at frequencies in ) ^3 v* C- u' _) p9 }/ h. Cthe microwave region. Traverse (1) To turn a weapon to the right or left on its mount. (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 ' ?4 c0 ^/ h/ m) o( q" h2 S( j- Fused in determining positions of the points. ( \& o5 L: A2 x2 d2 yTraverse Level That vertical displacement above low-level air defense systems, expressed both as a height and altitude, at which aircraft can cross the area. 4 T+ V3 x8 j8 C# M2 ITRB Tactical Review Board. 6 x9 C$ z& n; N3 Q( A3 G4 _TRD Technical Requirements Document. 7 H: N( Z6 a+ n" ZTRE Tactical Receive Equipment. ) |% [0 C5 B8 y4 {! d6 VTREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. , r# [+ P0 u; K9 B/ h2 YTREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 306 ! j) J: d3 h& w6 i6 _8 b" Q0 ZTRG Threat Reference Guide. . k @: X* m! Q7 v9 |TRI-TAC Tri-Service Tactical Digital Communications System. $ s& p3 p E6 u; l1 jTRIDENT Class of US ballistic missile submarines (USN term). , r$ N* P4 \: S( |. M: {/ l" A5 W; zTRIDENT I (C-4) US SLBM (USN term). - o) i+ N Q* ]4 OTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP Test Resources Management Plan. 1 B- h( C6 `3 \- ITRN (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 authorizations of the invoking process to the detriment of security or mission ! H W/ Q+ F2 V$ jperformance. TROPO Tropospheric Scatter. Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the ; c+ G5 Z: ?. Y4 W/ ~atmosphere, the troposphere. The tropopause normally occurs at an altitude of / K+ {" T/ z: I8 Q) ~- y, habout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the 8 o7 }( v3 ?% Utropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to 3 Y% J7 a0 z9 w1 z( Kthe tropopause, in which the temperature falls fairly regularly with increasing altitude, clouds form, convection is active, and mixing is continuous and more or less complete. Tropospheric 8 V9 B0 B$ |" y: @ VScatter The propagation of electromagnetic waves by scattering as a result of % P& J( e4 N$ N- o2 `irregularities in the physical properties of the troposphere. TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. . v" g+ t" F" T( S(3) Technology Readiness Program (pre-acquisition program status). ) V9 N5 s1 K6 o(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. 9 A/ s. P: g: T& K* u2 h$ A& E6 oTRR Test Readiness Review. 7 M, R6 \+ X7 V) ^/ R& @2 MTrusted 4 G) F4 L. g! N+ cComputer : o9 o/ U8 ~9 r& xSystem/Software $ Z! D$ A) u: N& K# J0 BA system or its software that employs sufficient hardware and software integrity $ u1 f8 H% P) Q. X! zmeasures to allow its use for processing sensitive or classified information. 0 V, T+ S& ^" x3 B& H+ E. ^Trusted Path A mechanism by which a person at a terminal can communicate directly with the 2 O+ d3 B1 `. p3 O; BTrusted Computing Base. This mechanism can only be activated by the person of the Trusted Computing Base and cannot be imitated by un-trusted software. & }( ~' U1 A0 X" l2 c* s3 mTRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. 3 `8 S) E+ @1 s' x. ^MDA GLOSSARY, VER. 4.0 T E" Z$ t( L# Z& x8 H307 ) X: D+ h. `* w( cTSA Technology Security Analysis. . K I& t7 C( C$ |4 |$ Y, D$ M2 TTSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. : c& [' T" W5 O- s' X. @TSDE Tactical Surveillance Demonstration Enhancement. + p; c$ h1 X0 @6 G5 JTSEU Technology Seeker Evaluation Unit. 6 C4 T: B. T OTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. . Q6 f- |; o3 _' J5 VTSMA Theater of Strategic Military Action. TSP Target Support Plan. - M. s+ w: C: nTSPI Time, Space, Position Information. 1 z- [0 T- [& dTSR Target System Requirements.

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TSRD Target System Requirements Document. ( S: Q4 P9 m5 g$ g2 hTSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. . @* u' |" C0 E2 ~4 [# X# I: QTT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). ; T& x4 F+ b, S' m- D! MTTA Total Time Accounting. TTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP ! G, S; z9 t b5 a2 ~ Kprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). 8 b7 }4 d9 t' j/ P0 q8 pTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. 5 l) C ~- E5 sTTSARB Technology Transfer and Security Assistance Review Board. ' i4 \3 N4 [7 I+ d: E) f! UTTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 308 1 m, ~8 D4 Q! k) W' YTTV Technology Test Vehicle. ) Q( c2 G- X$ b8 s8 ZTTY Teletype. ; G( q+ ^! J: n. j; L& e$ `7 |9 zTUG TRACE User Group. ( b( R# s3 P; t' j4 S" wTV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. TVE Technology Validation Experiment. TVM Track-via-Missile. 0 h$ x: E# ^8 Q! ? O8 [7 cTVV Technology Validation Experiment. TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. + i9 G0 |- N' X- |- |3 kTW/SD Tactical Warning and Space Defense. % ]: X; w2 g/ `( @. |4 S( ]# {TWG Technical Working Group. 5 U$ R i" C& N( ^5 Z. K) qTWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. - d, T( x. x, y Q6 S; H: f& D5 Q F" L& uTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). TY Then Year (PPBS term). TY$M Then Year Dollars Millions. . Q8 w* a% Z' W1 `7 bType A - System Specification " h( C: ~2 [$ ~5 G* Q) AStates all necessary requirements in terms of performance, including test # w$ ^' U7 G& oprovisions to assure that all requirements are achieved. Essential physical 8 @1 F( s' ] W Q# m4 W+ {# Lconstraints are included. Type A specifications state the technical and mission 1 e" N3 Z* v1 e5 m2 Qrequirements of the system as an entity. 7 i1 C% I& ~- L ?( I8 Q# YType B - Development ! A1 M4 a6 l! F; S5 ^7 @5 jSpecification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the & X- R9 Q' K7 udevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of 7 ^$ [5 m" d' \+ lthose characteristics. / }2 j5 K. Z$ N O! E; K" QType 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 primarily function (performance) requirements or fabrication (detailed design) 4 f: [5 c! G9 x0 l% f0 T* W: _1 brequirements. Type C specifications intended to be used for the procurement of 9 V! }1 l5 q" j) [# kitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. ) n. f' ]1 X* r7 l0 P* ETyping The act of recognizing objects by measuring a set of observables, computing a ! P7 [; g. F1 R3 B% kset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). , j0 v' L- j& ?& Z5 T# IMDA GLOSSARY, VER. 4.0 U . U3 k- R6 n/ Y4 ]309 0 D6 b+ X: ]5 y. ~( {1 a. i4 MU Uranium. U&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. M2 ]$ j7 s3 u& P6 R% jU.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). % L9 X; m; z2 _UAE United Arab Emirates. UAV Unmanned Aerial Vehicle. , Z0 ~, W# m( _' _3 b$ EUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. ) g% x+ D( K6 q$ y( oUCC Uniform Commercial Code (US legal term). 7 I; Z1 z0 O Z0 F. A {3 ZUCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. ( { e5 m L1 a" DUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). , }2 E* D& \; Y) R/ j# QUDS Universal Documentation System. A standardized comprehensive tool for stating # m% E. f" @. P. }8 q& oand coordinating program requirements for testing MRTFB ranges, as well as the / n. A: W- j$ ycapabilities and plans of test ranges to support program requirements. It 0 s7 H' ?9 D6 J/ n) E* X3 zconsists of a series of six planning and execution documents: 10 are the , ~( Y) [+ E4 G: a/ e* \Program Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) : g1 r6 ~- N; S QOperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the - L9 I* a5 Z* q. h4 R+ u3 UOperations Directive (OD). The UDS was developed and is regulated by the * [, Y' U0 w U ^/ JRange Commanders Council (RCC).

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UE Unit Equipment. 9 S. t p3 L: h5 _UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. 3 }( x2 @1 k. H R0 dUF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. 8 x1 h3 ]6 M( \+ AMDA GLOSSARY, VER. 4.0 U 310 UFG User Focus Group. % {$ O- \3 z7 {& \; DUFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. UGF Underground Facility. UGS Unattended Ground Sensors. 6 {$ V+ L( o' N# p ^4 Z& b' P6 n, WUGT Under Ground Test. UHF Ultra High Frequency. UIC Unit Identification Code. UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. / T" u% E0 w3 N! DUKEADTB UK Extended Air Defense Test Bed. 9 X& P( r+ j: b; F: A# j1 uUKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). . b) @7 S$ r, N5 f+ r0 VULS Unit Level Switch. $ h. q+ ?; Z, Z' _2 P; q+ T: XULSA Ultra Low Sidebobe Antenna. ULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). UMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. ( _1 g+ B0 D# L0 K3 RUNC United Nations Command. 4 f1 ~2 @$ b- vUnconventional 5 N, [ l# F! KWarfare A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare includes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, covert, or clandestine nature. Unified Action Armed Forces ! z9 D7 [+ C0 `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 more Services or elements thereof are acting together. ' i0 F! q1 W ~$ D2 A, O+ ^Unified Command A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary ; m9 u$ ^" d0 Jof 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 , _# d* W2 l6 `% iSpace Command 1 |- t, X- V' W8 ]2 l2 H(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army & H% U/ P5 t$ p9 V3 }! relements of the SDS system. Located in Colorado Springs, CO. - O, }* L( J( G% ]5 SUnited States # Y' T) @( r% ^+ x% q. }% s4 DSpace Command (USSPACECOM) 0 Q( y: y* y6 O! L+ K: NThe unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States % t+ N! p$ [2 _! m3 UStrategic Command * z+ B. {7 S5 ]5 Y(USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic * R; H) o7 Q9 Z) y' m/ F3 A. imissile offensive combat strikes. Located at Offutt AFB, NE. United States m. l) f: W" Z4 y6 ETransportation " c' U* B3 |6 _! WCommand (USTRANSCOM) The DoD unified command responsible for providing air, land, and sea / S) n( ]) @; S$ K! p0 u2 Utransportation for the Department of Defense, both in time of peace and time of ! y$ X) }/ j" v- D% f- H* D/ L2 Cwar. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces on a global basis, as directed by the Secretary of Defense. Located at Scott 1 y6 b& q) t( p9 d7 r* NAFB, IL.

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Unk Unknown. Unresolved ! |- A3 v( l( X" E' |8 R/ f5 wObjects ( C% p4 y o) O1 T7 GObjects so closely spaced with respect to the sensor focal plane as to be # h6 {% E! R* B6 xindistinguishable from a single object. UNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. & K, n; R" Y0 g) p0 ]$ O3 {UQT Unit Qualification Training (ILS term). # M: @9 C/ k) u6 R0 s* b8 HURIP University Research Initiative Support Program. ( F2 u: ]" t: c% F$ ~6 p5 eURL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. : c# O3 H g* \+ n/ ]US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. 7 P. X9 u& k6 QUSAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. ) m6 `* W& |! d6 d2 Z9 bMDA GLOSSARY, VER. 4.0 U : X0 G9 {% c/ Y) Z6 D312 USACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. ( v# ?7 `; T- |- }$ B* ~+ mUSAF United States Air Force. * y3 x1 Z0 J# C; E/ RUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF , N' F7 t1 j9 M- gSystems 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. 5 Z# ~) O" Q! A: y% {USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. 8 T* N* x2 E7 JUSAFE U.S. Air Forces in Europe. / H# S0 Z7 ^* m/ s1 U2 SUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. 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. 5 j8 y0 {( I/ x: [0 k' }* Y" PUSAREUR U.S. Army Forces, U.S. European Command. 5 t$ k/ @( M# C' v* S) {! n nUSARLANT U.S. Army Forces, U.S. Atlantic Command. + L7 L' k, q+ N7 nUSARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. USASDC U.S. Army Strategic Defense Command (<1Oct 92). * F7 k, d: e* ?" z; `USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. / K' x* y! p7 b" K7 T5 wUSB Upgraded SBD. 9 G/ w1 a8 e7 q9 v0 rUSC U.S. Code. USCENTAF U.S. Central Command Air Forces. $ _3 o% u7 |0 N, [& `& ?MDA GLOSSARY, VER. 4.0 U 313 ; L/ M# L3 {" i( J iUSCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. 8 p- d6 B4 t3 L" e) X& jUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS 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). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). ! O- p# w9 J) x1 wUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. 0 |3 \/ s8 t9 L9 VUSD(P) Under Secretary of Defense for Policy. , _ J/ g0 K0 u$ rUSDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. 4 A5 f! W7 u' B+ H6 iUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine " m' i" x5 ?: z% @(hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational Evaluation , ~9 H8 c! s& L% ^System (UOES) 3 n1 p( ^4 [2 U: g2 k3 \: dPrototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and - m+ [' g* t) ztraining for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the normal acquisition cycle. ; L y. Z) J, Y, mUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ! G8 f) l2 Z- E% l \) ?USFJ U.S. Forces Japan. USFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. # D& B1 ^. S5 Q: J7 o% [USG U.S. Government. : ~: ]2 |. C' w! J9 DUSIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U : x, P; h/ p& Y: F' k314 USLANTCOM United States Atlantic Command (Now see USACOM). / ~5 k1 V' o, d6 Z& @USLANTFLT U.S. Atlantic Fleet. 2 j3 Q% p9 ]0 X: b* @USMAR- FORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. ! Y, \/ f# S3 x: i9 x6 R$ g) rUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. # B/ m' j) s yUSMC United States Marine Corps. USMCR United States Marine Corps Reserve. 8 H" ~& G, t' Z. b/ lUSMILREP U.S. Military Representative. USN United States Navy. 8 l& a. l- w+ C7 tUSNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. 3 z6 w& V; b: n; s! P3 uUSNO U.S. Naval Observatory. . z) g6 d7 O f! KUSNPGS U.S. Naval Post-Graduate School. & y. D% S2 K) Z! RUSPACAF U.S. Air Forces, U.S. Pacific Command. USPACFLT 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. USSOCOM United States Special Operations Command, Tampa, FL. 9 W$ P1 q5 L/ ]6 a3 r$ U6 |USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. ' G6 H" m- Q% o) `2 ]% W( y( [USSS United States Secret Service. ' X1 o! f# i. U+ GUSSTRATCOM See United States Strategic Command. USTA United States Telephone Association. 5 E$ v3 [' k5 @6 R, e2 @$ N# LUSTRANSCOM See United States Transportation Command. * q' w3 K) O; u. CUT Universal Time. UTC Unit Type Code. " K6 t2 v: P9 n8 k; YMDA GLOSSARY, VER. 4.0 U # g2 d6 e5 x3 _# E& A315 % S; ?4 v& L$ V; @/ l* y7 P8 _UTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. 8 T" J. Y$ J6 _- |; m( `6 v% HUUT Unit Under Test (ILS term). 9 z3 P" _ E( e. T; y4 g/ j) eUV Ultraviolet. UV Electro- ) r5 ]9 g% J1 b% l& mOptics 6 m5 _/ b7 e3 `. p" kTechnologies/techniques employed by optical sensors in the wavelength ! j& t3 P1 @' o/ D9 _spectrum shorter than visible (e.g., less than 4,000 A). ! x0 u; Q- |- x0 F B7 yUVPI Ultraviolet Plume Instrument. 8 \& A; J+ X* J- s# ^' K% N+ \UW Unconventional Warfare. * f* X( K& |" i7 w. g% fMDA GLOSSARY, VER. 4.0 V 316 V Volt. V&H Vulnerability and Hardening. 9 S4 @( T' v9 O: [2 {- s( nV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. Validation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, 3 T0 p* h4 I. b O. t ?4 o- jtactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. 4 M! L2 ^$ v/ n2 A I* S- `VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical 6 V" d% ?. i' j4 rfactor introduced to average the effects of orientation, minor shielding, and & E2 ~; g& ~% A+ r# J) B8 Duncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. # P% l' {4 X5 i8 O- UVCRM Verification Cross Reference Matrix. VCS Voice Communications System. # E4 a* t& v# M/ F Z! H8 ?/ ]VDC Volts Direct Current. VDD Version Description Document. VDU Visual Display Unit. % |+ d; \/ h3 r% l: t, \; jVE Value Engineering. VECP Value Engineering Change Proposal. , C/ k Z6 ] Y9 Q+ c3 v# B! DVerification (1) Confirmation that all data inputs, logic, calculations and engineering 1 N. s: F+ a7 |7 h1 r. l0 wrepresentations of a T&E resource accurately portray the characteristics, calculations, logic, and interactions of the system under evaluation. - Z Y% `2 ^" ^/ I/ t3 M(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. VESA Video Electronics Standards Association. VFR Visual Flight Rules. 0 {# Q! s# V) ?) qVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. : J( b O& Q$ v' Y5 ]VHSIC Very High Speed Integrated Circuit. ' n% h8 p+ l. ^. WMDA GLOSSARY, VER. 4.0 V - I8 k' F4 h8 Z- x7 c$ r317 VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional 8 |8 b3 k4 S* d' r7 n* h6 }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 , E. D2 N9 d* @6 Q: O* `4 [precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. 3 N8 J0 @$ S& v& y9 L; MVIS Visible. VIS/UV Visible/Ultraviolet. 5 y4 n- M2 {* l- \( b( [Visibility Range (or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can " s& S7 E6 u+ j" y* w! f/ r# Jjust be seen against the horizon’s sky in daylight. The visibility is related to the 7 P( h5 L/ M8 x* l/ s# o1 f0 qclarity of the atmosphere ranging from 170 miles (280 kilometers) for an 0 Q/ O/ j( m R0 Vexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze ; m# R( H% h. D/ B' ior fog. The visibility on an average clear day is taken to be 12 miles (19 5 o0 U' B- w/ Y9 e4 A! c& m9 s: d4 qkilometers). Visible Electro- Optics 7 {: p6 j) ?# k2 `' E( ?Technologies/techniques employed by optical sensors in the visible portion of 7 h2 B( _- q( w% D7 @& Z1 }" [the wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. 0 Z' T) V2 V2 I1 _$ O) J8 XVLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. ~. k* s6 R. m3 ^/ `VME Versa Modular European [standards]. N! T Y2 b- w) N1 H* ^* `8 TVMF Variable Message Format (Telecomm term). VOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. 8 p% W4 S& m$ H1 R1 \& ~( [' uVTOL Vertical Takeoff and Landing [aircraft]. , \1 l, y3 R, ]$ A4 _: b7 {/ ~VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 8 o# ]- Y; Q: M$ ^# w2 b318 2 M y( C" i/ Q& v$ q+ |- d$ A7 u4 GVulcan UK bomber. VV&A Verification, Validation, and Accreditation. ' b8 Z: x& h) K9 \) M4 dVVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. . s9 L" Z2 l4 @+ v9 dMDA GLOSSARY, VER. 4.0 W 319 W/ With. w/o Without. W/TD Warning/Threat Detection. 1 p" B9 n6 J& S, u; p6 {WAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. : [/ T7 ?9 X- K3 \( Y( w1 AWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. ) o4 F+ |" F1 g" y3 LWAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. ' m# D1 G& S* x1 _4 A( K' @5 TWar 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 ; h3 K* l' Q* A5 o; {0 y; G: Y( U7 CJNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and 6 D+ S1 P8 t5 zassessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. 2 v6 M/ C$ h- w) Z6 v$ eWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. ( ~: d% X( a7 PWarhead Section A completely assembled warhead including appropriate skin sections and related components. ; V1 D- o: C# B9 N( D! h0 T/ LWARM Wartime Reserve Modes. ! L N& P* b+ C- v' NWarning of Attack A warning to national policymakers that an adversary is not only preparing its - H) g0 W) f, `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 e- d8 y3 _/ Y3 SWartime Reserve Modes (WARM) - e8 B: a7 m' S& m# Z8 `Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will ) ^! R5 _) b5 r v5 Ycontribute to military effectiveness if unknown to or misunderstood by opposing e- o0 w) T8 l. Z2 [) O: T" Q [commanders before they are used, but (2) could be exploited or neutralized if & [$ i1 x* m1 Eknown in advance. Wartime reserve modes are deliberately held in reserve for wartime or emergency use and seldom, if ever, applied or intercepted prior to K5 y9 Q6 x6 A$ t$ |- }$ O. asuch use. WAS Wide Area Sensor. + t; z1 L& w1 U+ }8 nWASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 WASHDC Washington, District of Columbia. ( _0 [6 L( ?6 L$ f) m7 fWastage (Max) The maximum number of defense weapons which, when used, will be ineffective ! n( C6 M9 |4 X# z7 }8 r3 t' Iin contributing to the defeat of the offense. Watch Condition 1 _* ?7 Q2 \) r(WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. ) |6 Z! w1 g7 d* c7 g g! [- L+ [WATS Wide Area Telephone System. & o/ l' N* p7 E" Z1 K+ yWAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive ' a3 X. m1 ^* x6 \cycles of a periodic wave, along a line in the direction of propagation. & |; I3 K. Q* n9 jWB Wideband. WBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. ) n/ E, w9 J2 W! n$ }7 T- l- _WCC (1) See Wing Control Center. (2) Weapons Control Computer. ( z( ?$ o- f2 B7 ~. l' u m, dWCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. 0 e% E9 ~/ x8 s- b7 t/ bWCS Weapons Control System. WDM Wavelength Division Multiplexon. 2 k9 b7 P. \& n3 p BWeapon Enabling The set of control functions without which defense weapons cannot be launched.