航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 + }$ R4 ]& o& y! `1 c. K7 BTheater Missile Defense Council ) o' f1 L( {( Z% N(TMDC) A consultative body for considering TMD family of systems planning and 9 F+ a, ^# g! U2 c5 |! ]' h0 b" @programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. Theater High % E; T8 H6 Z3 d" {( K& h! H0 FAltitude Area ! Y) J. D. W. b# @7 _$ F- m+ O3 M2 oDefense System (THAAD) A ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as ; ^. A8 L& u% s3 E- b* DPATRIOT. Theater Missile (TM) A theater missile (TM) is a ballistic missile (BM), cruise missile (CM), or air-tosurface guided missile (ASM) whose target is within a theater or which is capable of attacking targets in a theater. ) H( u% J. {7 \- F" b9 QTheater Missile Defense (TMD) ; W. p, R( v. ^: R$ Z1 FOBSOLETE. The strategies and tactics employed to defend a geographical area 4 c+ m9 {' i3 g* Noutside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. 8 |9 I) R% O9 ~! P% F. ^ wTheater Missile Defense Ground- Based Radar : o7 `0 x! m: ~' V0 j(TMD-GBR) 9 m5 H5 M+ c+ N) W; R* J0 gA ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as 0 v1 N- ~, @) I6 F pTHAAD Radar. Theater Missile 6 y5 k5 l2 B: O' Z1 n' c8 e9 rDefense Initiative (TMDI) & x* |- \ _4 D+ \ W# ^An initiative under which all DoD theater and tactical missile defense activities are carried out. Section 231 of the National Defense Act for Fiscal Year 1993 (Public Law 102–484) directed establishment of a TMDI office within the DoD. 3 |$ @& F3 e9 ?1 S. w& xTHEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of 1 k! r& m" L( d. w! _7 o6 u! sthermal energy received per unit area at a specified distance is generally & Q5 ^0 i" {2 U) }4 W. B+ @- ]expressed in terms of calories per square centimeter. ) l- ?# \& K0 ]Thermal Imagery Imagery produced by sensing and recording the thermal energy emitted or % @- a: c' w) Q4 p, @reflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. - ? ]) e. [; A" }4 H0 [" aThermal Management 3 V' y$ i Q& S+ j% i7 y) _Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. Thermal ! x: E2 D8 W: W7 `# N5 [1 kRadiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of 2 S/ P$ }/ p: P% W" K4 Qultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, , D) x9 `4 C; E/ N3 K( lemitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the absorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) - [% Y F( I5 o6 l" I4 c% Y" uMDA GLOSSARY, VER. 4.0 T - r p1 D! s# c6 j9 G299 # R; |/ r' z `$ o6 cThermosphere 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 exosphere and most or all of the ionosphere. Threat Characterization 1 y2 a5 ?4 S0 p( h0 j3 t, G$ GAn assessment of the nature, magnitude and intent of an attack in progress. ' S1 H" W4 Y; n3 f N4 uThreat Corridor (Threat Tube) A tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive ) l% [ ?3 _+ D6 l: y O0 {' [systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable " _5 F9 L) p8 Y W4 hvalue (threshold) required to satisfy the mission need and a performance ; V5 Z0 p% f8 C/ l6 n% r( U) Jobjective. Threshold Defense . y) e/ ~6 Y+ S3 o. t9 MA defense strategy that concedes that the target can be destroyed at a price D5 f* i) M: {5 f; k* |0 Rthat is not prohibitive, but the presence of the defense is thought to require the offense to mount a relatively large and complex attack. % D% L- b. \5 k4 d/ d" ^* L( B" {" fThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted & s p/ g; x1 z4 s) fReplicas (TREPS) Conical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry / D+ l$ |' N; j, G0 ephase. 3 t6 Y; A9 ?/ gTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. % L' a* e9 x; V0 Y9 |( C/ Y# BTIBS (1) Theater Information Broadcast Service. * k! o9 {" h2 i& ?9 N' M9 q(2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. ) O" D& l5 T W. b, c% L* x4 {TIDP Technical Interface Design Plan. 1 w9 E; @3 X* v% B& r1 \5 S) ATIE (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. + c* O0 Q# I1 ]TIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. ) W0 t1 ^1 c2 tTIM Technical Interchange Meeting. S! m0 {& K3 X& aMDA GLOSSARY, VER. 4.0 T 300 / z% T0 y0 c# i3 r, Q/ dTime-Phased ; E* N5 y- ~5 L$ p, sForce and . z% E$ y: V9 i: @/ i6 W, P% D( uDeployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual % z. R, ~$ ?6 V0 V+ m7 t( x3 p, x- Wunits required to support the operation plan and indicates origin and ports of debarkation or ocean area. Time of Flight (Max) The maximum time for a booster or vehicle to perform its function from time of 7 H! R W, R- }launch. 0 e; L; X; f5 z% F RTime on Station The time the sensor is in its operating position. # f% C) y+ t# j/ ZTime Sensitive Targets 2 Z5 {0 U. {$ n" d$ p0 O' cThose target requiring immediate response because they pose (or will soon pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. 7 W2 S6 C% x1 l( U: o' ^, R. NTIMS Training Integration Management System (USAF term). " h7 N. h0 `" J0 ~- A$ JTIN Theater Intelligence Networks. TIP TOPAZ International Program. 5 t1 e, \9 S8 K- ? MTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) $ R, k3 v9 `0 q+ i+ o1 lTIRS Telemetry, Instrumentation and Range Safety ! Q$ t7 T5 H9 U( N) rTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. * u. ^9 X4 i2 i+ N% v# @& GTitan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) / N- G: Z4 q' ~* f" |( i# [8 b7 k$ bTL Team Leader. / u4 q9 N2 `* ?. m- \3 fTLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. - _7 a$ v% c, L9 \; G# t S5 ~TLV Target Launch Vehicle. 7 x5 ]: U- r( RTLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army ) _' s" \1 i, L$ Z; @term). ' O" u: H7 j$ U6 ^ M, RTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. G2 O* x! U! m; w8 r- }TMD C2 Theater Missile Defense Command and Control. & f, V1 X" O5 A: P) FMDA GLOSSARY, VER. 4.0 T 8 }0 S# n+ f f$ ?$ L: l! R301 ' O. |" f' t+ q* j1 ?; g3 ^& zTMD C % H% X% |: s2 G t* I# e% i. c3 I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. 0 P7 I$ L) Z0 i x0 }TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). - g: C U/ h3 e& t" zTMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. ' I6 m. S1 \+ ]' K# p# {0 R. iTMD ITP TMD Integrated Test Plan. 3 C- x1 J* |4 y1 r* P# p) aTMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. ( z4 P, ]0 G7 l% ~% K8 l' RTMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. 2 i1 i; Z+ X$ KTMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. 1 o" Z7 |7 d$ `3 a; l+ ATN (1) Terrestrial Network (C2E term). (2) Thermonuclear. + q+ Q) ^: R& K6 {# eTNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. ; \' m' J: ~( z* v4 O3 d8 E3 yTO (1) Task Order. (2) Technical Order. ]+ h+ a; k8 D9 q3 lTOA Total Obligation Authority. TOAM Tactical Air Operations Module. 9 F- f/ x1 b, x4 p: ]3 s! jTOC Tactical Operations Center. TOE Table of Organization and Equipment. ) ]4 S4 o% G hTOF Time of Flight. 7 P+ X' |* J: D- v3 e' C* pTOI Track of Interest. ; j* t+ c( A% cTOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. E: ]( A1 [: _ ^TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 - g) ~$ r; n/ a% |TOMD Task Radar Management Details. TOMP Task Order Management Plan. 8 a& c& G3 {1 B# @" nTOMS Total Ozone Mapping Spectrometer (NASA term). * H6 d% j7 t; X! l) iTOO Target of Opportunity. , E. d c$ S9 V% Z v' K" }. R3 FTOOL Target of Opportunity Launch. TOP Task Order Plan. 5 o3 \2 O- N% vTop-Down Pertaining to an approach that starts with the highest-level component of a 9 ]0 L* K$ E; i$ T. `hierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down Design The process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the desired level of detail is achieved. $ g- g3 O5 E9 S& j2 R t. H* zTop-Down ) G- y& o: w6 @- ~1 Q6 v9 v& PTesting & m4 }" G0 Q; b. `! o5 _The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. 4 M: ~1 K* A: gTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. TOR Terms of Reference. & b7 C, a( l! U' B; XTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation ' B% E' ~* I' v! L6 yAuthority (TOA) * I# ^( k( O. e! QA DoD financial term, which expresses the value of the direct program for a given 7 w/ U4 N7 ?, C# R: r- k7 ~+ {: W: ffiscal year. Total Quality % s0 I$ }6 Q0 V9 A# i% y `Management (TQM) 8 _- V0 l& \, @0 QA management philosophy committed to a focus on continuous improvement to ; ?$ C6 n/ q& Q j' A0 p4 lproduct and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. ( G8 V6 P/ H# ~+ O! WToxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. . f- j% `: |( x; v% S# ETP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. 9 G# m5 ^7 m DTPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). 3 [' @- f6 W6 j' O& N" z$ { MTPDR Total Processing Data Rate (TelComm/Computer term). : U! E, k! D/ \0 P/ E( `MDA GLOSSARY, VER. 4.0 T 3 V) x% `, x3 s/ W1 q* _% t303 # O$ ^# r% w. j: `. @TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). # {* g" j7 y, KTPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. 6 O8 Y: ]' z0 L7 ?+ f& Z5 oTPFDL Time-Phased Force Deployment List. 8 a& O6 ?0 @: z% f% ? e- _2 CTPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). v7 y+ N; A2 [5 wTPO (1) Test Planning Organization. (2) THAAD Program Office ! m( d4 |. T* rTPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target % |2 F# L7 h4 _' t! iPerformance Report. 3 v9 i$ L+ o$ Q7 @& H) `TPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) 9 o. o& X7 R, {" Q0 z6 Q4 ]TQM Total Quality Management. : q7 U4 [% w2 \6 tTraceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path ' e+ \* c: ?* m# `(upward) and allocation/flowdown path (downward) of requirements and constraints. 6 B+ f+ o3 R- F' ?(2) The degree to which a relationship can be established between two or ' F7 @4 x3 B; B& Hmore 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. (2) To display or record the successive positions of a moving object. + o& L% G( j2 V% @(3) To lock onto a point of radiation and obtain guidance from. ) R2 t: p; }4 }: @& u(4) To keep a gun properly aimed, or to point continuously a target locating R$ ?6 _) T4 F" M/ ]instrument at a moving target. , ^% @, N2 L' I3 p: J(5) The actual path of an aircraft above, or a ship on, the surface of the earth. 0 H' f+ A6 \$ F5 P8 z1 c; l: WTrack + A, Z8 ?3 D$ A) K# _) p [Assessment The Track Assessment looks for anomalies in an object’s track data. An anomaly ; n) n$ {5 c/ `) j# @5 yin the track may indicate a hit. Track, Birth to " b4 |2 d5 m+ }: D6 I( J9 l$ MDeath 9 ^( v- }0 \" P9 xThe maintenance of an associated track through all phases of flight (i.e., boost # y6 V9 p+ L0 Q. ?' C% Zto reentry). ; l I3 S! ]2 Q9 F' ETrack Correlation The combining of track information for identification purposes, using all available data. 8 }8 m/ L3 q3 [1 C: lTrack 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 - w8 U S# s$ |, Z: G/ S a$ V" L! Ror place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS + m2 ~* W4 W* D1 fmeasurements with irradiances with confidence of association; or some subset of ( v u" x! E5 sthe above. Track File-Track History + `1 A4 T9 K1 B) i; U+ Y: X7 P+ KA set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a : f( ~' V6 v9 S7 a- gthree-step process of data association, track initialization, and track improvement by filtering. ' |( a% r$ K+ {& a9 \8 L, jTracking The act of generating and maintaining a time history of an object's position and / D( J9 h, z1 r: r s: D3 Sany other features of interest. Tracking and + D# I# I' G7 r1 J* XPointing Once a target is detected, it must be followed or “tracked”. When the target is % I3 R, ]3 W, P) Fsuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing + z+ Q0 e6 ?4 N7 Y( V# F6 Y n; ware frequently integrated operations. 5 M; h/ q# `* R: e; F. `Tracking Range (Max) The maximum line of sight distance at which a sensor can maintain track of an object. 3 g5 U( e; }2 K, OTrack 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 ; x5 N' M4 K$ d9 ], |( O% Y l+ v3 Uframes. 5 G3 l9 R) o( f8 e- }; `2 j iTrack Production Area 8 @( x! w5 h! c7 eAn area in which tracks are produced by one radar station. 9 `/ `# G/ K8 K2 I* m6 pTrack Symbology Symbols used to display tracks on a data console or other display device. * m& i2 V8 c! Q! G; L' y0 PTrack Telling The process of communicating air surveillance and tactical data information 0 j. S* X( ?1 f) E. O$ J9 obetween 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. Traffic Capability Maximum The maximum number of objects per unit time which the sensor system can ) [, f+ i, _8 ~9 F& fmaintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high ; ^. H# K2 O: vendoatmosphere. 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. ( t; {( q/ ^) S3 OTrajectory + L% r0 {, j1 B6 zHistories . W( B1 Q" u, P, J4 d3 ?& K: i+ Y# c& [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 $ M0 C. |2 U4 `305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. TRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. 5 Q& ~% H6 F8 m dTransition to Production A risk reduction process during which the program shifts (passes) from - s# X) Y% T: kdevelopment 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.) Transmission F+ D& H4 w$ k9 g G; \Security (TRANSEC) # }5 R7 F8 `. N0 A8 ]5 oThat component of security, which results from all measures, designed to protect 1 x7 I0 L. w' I& R& f3 n- ycommunications transmissions from interception and traffic analysis. (See COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative & f- `7 g+ D4 p. ^: T) V2 [speed of the fluid is subsonic in some places and supersonic in others. This is encountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. " b9 \' \" g( ~( h9 }TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security $ o# s* b# g" X/ vmechanisms to be circumvented. Traveling Wave Tube (TWT) |1 U8 Q; a% e" ~An electronic tube in which a stream of electrons interact continuously or 8 W3 y# R( F: ?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 4 I, H! ]) `9 z- M2 z9 Gstream to the wave; the tube is used as an amplifier or oscillator at frequencies in the microwave region. Traverse (1) To turn a weapon to the right or left on its mount. & L; P( O0 f2 [! p) w! j(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 ( ^/ q. k8 M. Gused in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both ! w' x" H8 X4 k! a; Nas a height and altitude, at which aircraft can cross the area. + a: B; T- @3 x3 WTRB Tactical Review Board. TRD Technical Requirements Document. TRE Tactical Receive Equipment. 9 ~+ f x/ J. K$ c! V' {TREA Transmit/Receive Element Array (THAAD). 3 w/ G8 K$ E8 V }$ q+ k, [( oTREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. % T6 {; P: K! u( zTREPS See Thrusted Replicas. % E& H6 G; j& q+ UTRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T % j0 x) Z+ y8 j/ ]; C4 }306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. TRIDENT Class of US ballistic missile submarines (USN term). : d: z" L# l, E% h) fTRIDENT I (C-4) US SLBM (USN term). TRIDENT II (D-5) US SLBM (USN term). ) z- W6 _" J( h: NTRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. 2 C) a7 g5 g' g: m2 n0 w/ v9 ?TRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. " R+ ?/ @1 H8 O: J& ]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 ] `+ B6 }) S5 }! qperformance. . z9 l+ P- h, h O% sTROPO Tropospheric Scatter. Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the - @0 }. u' ~0 [+ G! P% qatmosphere, 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 & b$ d2 e$ C/ X* I+ ttropics. (See Stratosphere, Troposphere.) J/ ^* V$ F2 K1 O+ yTroposphere The region of the atmosphere, immediately above the earth's surface and up to - C8 _( L2 \3 {- kthe tropopause, in which the temperature falls fairly regularly with increasing 8 e; G* b8 B+ W& d4 Baltitude, clouds form, convection is active, and mixing is continuous and more or less complete. ; b9 B$ c, P' U- S* F0 cTropospheric / ~9 z( }2 S4 u4 z# ]& qScatter The propagation of electromagnetic waves by scattering as a result of 0 E) f7 T$ A1 B6 W0 ] _, R- q* Zirregularities in the physical properties of the troposphere. TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). ; H7 s/ A6 d$ H! W6 A1 ^(4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. ! B0 n# m* _# L L2 O# UTrusted . n6 Q- A* P6 F/ X+ lComputer - Y3 ~4 S$ D0 f" R. ^+ C5 a. L' zSystem/Software " N; g& J9 L$ Z, d+ {A system or its software that employs sufficient hardware and software integrity " s: r2 e+ f7 o! k) m, vmeasures to allow its use for processing sensitive or classified information. Trusted Path A mechanism by which a person at a terminal can communicate directly with the 1 y5 X: d& M7 |/ e) A$ }9 r fTrusted Computing Base. This mechanism can only be activated by the person # _* t/ S* F7 x) m+ Sof the Trusted Computing Base and cannot be imitated by un-trusted software. 7 ^. s" [' g5 y# T+ j1 o/ XTRW TRW, Inc. TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T / [- I/ C5 K8 J0 k( y Q/ a7 `307 7 t3 Z7 G7 {+ HTSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. 4 J: @# t9 K# }2 M7 S j" TTSCM Tomahawk Strike Coordination Module (USN term). 4 i5 q8 q5 [$ y2 t" k6 STSD Tactical Surveillance Demonstration. + j/ j4 `! x: n$ fTSDE Tactical Surveillance Demonstration Enhancement. 6 m% |; {% C1 F$ k CTSEU Technology Seeker Evaluation Unit. 2 Y/ p2 N) K" ATsIAM Moscow’s Central Institute of Aviation Motors. 2 ]; u _2 J$ p& G3 c. [TSM TRADOC System Manager. TSMA Theater of Strategic Military Action. 1 J: x' V/ ]4 p$ N lTSP Target Support Plan. TSPI Time, Space, Position Information. . {4 P- o5 B+ h6 q( ^TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. TT&C Telemetry, Tracking and Command. . I+ ^3 e' F& G+ ZTT&E Technical Test and Evaluation (Army). " S- @7 j0 Z. v6 n u: ~) l+ P. [TTA Total Time Accounting. 3 O" J" E* m. |' s, ~4 XTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. 3 c6 N/ }4 P0 r! t' qTTD&D Test Technology Development and Demonstration. A portion of the CTEIP R: d: n; @ J% y, Y; Uprogram, which funds the development and demonstration of technologies, 2 [2 b2 S8 J" L. A! J. W5 Z) O) awhich have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). ; e2 U* O- x( m: J% R' yTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 3 U6 o/ N5 |$ ]' a308 ' B/ p9 f0 a O7 |: I8 LTTV Technology Test Vehicle. TTY Teletype. $ P/ o2 k7 l: mTUG TRACE User Group. 4 J2 r5 k2 S) r" NTV Thrust Vectoring (rocker engineering term). . y# ]2 z' o0 w7 X5 XTVC Thrust Vector Control. " [9 ?1 J; J: e$ K. ITVE Technology Validation Experiment. , \2 N7 B2 _ }: W: ATVM Track-via-Missile. TVV Technology Validation Experiment. , f( D0 M4 U! G3 I3 w) ?5 a* CTW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. % A! @3 e# G7 [) ITWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 1 s$ V* E& V* X+ HTY Then Year (PPBS term). TY$M Then Year Dollars Millions. 5 o" r8 A' I' J5 [- y; s j2 H/ E2 P( VType A - System % @( T7 Z7 D( W0 y6 V0 O0 {Specification 3 u7 c4 `% ^9 }$ QStates all necessary requirements in terms of performance, including test 6 A9 `# V/ G1 J% G7 [, @5 Hprovisions to assure that all requirements are achieved. Essential physical ( T2 y( I8 Z) g' F f L+ Wconstraints are included. Type A specifications state the technical and mission requirements of the system as an entity. Type B - 7 i" m% v$ E0 i7 {, C' V( l6 BDevelopment Specification . E3 c8 S, \/ Y) EStates all necessary requirements in terms of performance. Essential physical 9 U. p5 y- N+ s9 Wconstraints are included. Type B specifications state requirements for the ( V. n7 f3 q. w1 X( vdevelopment of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of # f5 |2 {( s, w' Z0 ?! ?! Cthose characteristics. ' s4 \; x X3 _/ ?Type C - Product Specification Product specifications are applicable to any item below the system level, and 5 Y* y7 V: _7 f6 v. E0 Amay be oriented toward procurement of a product through specification of & R5 h# G- k8 l& Y' Qprimarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of items including computer programs. * m" y8 q$ m" _2 \* j; kTyphoon Class of Soviet ballistic missile submarines. % [% D. }. W# ` P, R# zTyping 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 # o, y6 g q: ~& A% w& nobjects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U % |! T- H: F; i, V4 o- A309 # {4 I/ D! X' ]) s% W" c9 e3 r! hU Uranium. U&S Unified and Specified [commands] (pre-1996 term). ' |! W* z' `! x- H4 J: y$ u7 RU.K (UK) United Kingdom. U.S. (US) United States. " C) V7 G8 ?+ k/ ?, n4 CU.S. West U.S. West Incorporated. $ B1 f; M+ v+ M: m( t0 zU.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. 9 y) m! v7 v$ R8 ?7 d% b( yUAV Unmanned Aerial Vehicle. 4 \: [% X7 R! kUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. UCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. ) K j( o/ x: n* tUD/ASD United Defense/Armaments Systems Division. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating 2 `+ e: s; W) H- u: p/ H8 a- k2 _and coordinating program requirements for testing MRTFB ranges, as well as the 1 r8 D" c! T. f/ ?9 e& V0 Wcapabilities and plans of test ranges to support program requirements. It ) |9 f' s/ l r& ^consists of a series of six planning and execution documents: 10 are the Program 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 Operations Directive (OD). The UDS was developed and is regulated by the & c: C8 \0 k* f5 @Range Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. % v7 Z! L$ x) H3 R; X% w4 I9 r+ z' xUF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U 310 UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. ( Z0 g1 a" D4 w& lUFP Unit Flyaway Price. UGF Underground Facility. & H& a! v V& \* D) IUGS Unattended Ground Sensors. UGT Under Ground Test. % E- n4 f Y# G7 Z. OUHF Ultra High Frequency. UIC Unit Identification Code. " b" b) @2 b* ?% m wUIN User Interaction Node. * H5 B) I$ j( M8 @; g4 i+ PUKAS (1) UK Architecture Study (2) UK Associate Studies. $ L; w1 r! d! h4 qUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). 5 B4 N9 x; |! N* O( \$ e, GULS Unit Level Switch. " g5 C2 {- X) O4 X- c2 [ULSA Ultra Low Sidebobe Antenna. ULTDS Unit Level Tactical Data Switch (SINCGARS term). ^. w- B0 x' KUltraviolet (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. U& G) {( v) i* Q kUNC United Nations Command. . y& s) o9 q; n" K# S* W1 V! j1 iUnconventional Warfare / @7 N5 W3 X- b7 `5 F, H+ w9 IA 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 % j# J, w+ y- n+ BA publication setting forth the principles, doctrines, and functions governing the ) H% K- c% Z" L! Pactivities and performance of the Armed Forces of the United States when two or : c- R& |) O) i* i& dmore Services or elements thereof are acting together. % a( o( b5 m$ e# }, kUnified Command A command with a broad continuing mission under a single commander and 4 l2 o6 H- k. O; Ncomposed of significant assigned components of two or more Services, and 3 V- R) R7 D* B4 l7 ^: R! nwhich is established and so designated by the President, through the Secretary % x) b1 E4 u) Q. ]: Z& O" t X: cof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 7 _, o4 T/ F0 a$ j$ I311 UNISYS UNISYS Corporation. United States 3 N, k0 |6 X" {5 B7 c" MArmy Space Command 3 ]% d8 I5 W5 T* [/ M! M' ~' i(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army # h& G$ g, z/ Felements of the SDS system. Located in Colorado Springs, CO. Z7 V- q% `( o" {( C; c" K7 w6 JUnited States Space Command / y0 I2 B* o6 y: D$ ~(USSPACECOM) The unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States Strategic & z2 E4 V% d3 Z _; ~) Y4 \Command (USSTRATCOM) , F2 O5 R2 Z2 i6 \' q. sThe 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 # L8 a5 F1 V y1 h* q(USTRANSCOM) . _) G0 L: a7 a' eThe DoD unified command responsible for providing air, land, and sea & \- ?9 h+ v% L" `. stransportation for the Department of Defense, both in time of peace and time of + P( ^$ C1 _8 x! X. F- _war. It is also responsible for providing airlift, sealift, surface transport, and 9 G7 u) h& f; r" @5 K7 tterminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces ) q' o2 }3 Q7 i) z. ~* X* Uon a global basis, as directed by the Secretary of Defense. Located at Scott # s8 @3 E$ { ~1 L, bAFB, IL.

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Unk Unknown. Unresolved 9 \" G: j$ H9 L" @5 nObjects - I& c) f3 J0 B' k: v( u9 r8 [Objects so closely spaced with respect to the sensor focal plane as to be " {# t9 k6 u9 g% xindistinguishable from a single object. UNSC United Nations Security Council. 7 Q: h: K9 [0 }2 h7 vUnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). 9 R0 x. _8 I7 w2 s, e; C3 yUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. 4 N; a( W ]0 z' s5 w' UUQT Unit Qualification Training (ILS term). 6 x( }6 C$ |' uURIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. 7 A) p* Z6 m) F( d# }US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. 5 ]* Q4 v5 k. j( Z) L5 N" F& xUSAADASCH U.S. Army Air Defense Artillery School. ' S+ r. Y0 w- m* @# a a- B" t6 l9 g. zUSAAE U.S. Army Acquisition Executive. - q- L0 ~' q* |MDA GLOSSARY, VER. 4.0 U 312 USACE United States Army Corps of Engineers. & w; w+ s6 Z2 _; _% GUSACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. 9 [+ ^0 l8 F# C; c9 f6 u- g* TUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. ; ^1 _- k* X, r v# lUSAF/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. 2 H; }% T+ G% [" \( |USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. r; Z, }5 }0 q2 p7 DUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. % }, e% Z/ S. q5 v' ?- p- TUSAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. 4 G% O5 y9 a4 Z3 g6 VUSARSPACE See United States Army Space Command. ( }' P1 i6 z8 a5 M7 n8 v" hUSASDC U.S. Army Strategic Defense Command (<1Oct 92). + o+ k) C. i0 f$ }* c; AUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. ) Y- J- Q% j9 Q, ]USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. USC U.S. Code. 7 r" n8 F& ^1 }USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 F% L4 V5 q& F. [USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. 1 z7 D) P# }7 [USCINCPAC Commander-in-Chief, U.S. Pacific Command. - C% C1 U) S0 o& c' MUSCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. ( A3 |; [/ a5 w% j' ?# wUSD Under Secretary of Defense. USD(A&T) Undersecretary of Defense (Acquisition and Technology). USD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. & ^. [- \) L' dUSDA United States Department of Agriculture. 4 M) J4 Q4 c: F1 W; I3 |5 sUSDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. ) W- d% Y0 f% a F3 GUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine (hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational ( V J5 [2 P1 K/ c rEvaluation System (UOES) 4 y! W9 y" p; g. BPrototypical system developed and tested as part of the early phases of the + Y$ o: y: M! |+ T, kdevelopment process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the 1 M* z0 \& _6 u5 x/ @* j* o3 G- S0 knormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ( L$ o5 v$ w j5 P: B% l; |) WUSFJ U.S. Forces Japan. USFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. 9 q3 a# E5 g) u- G! hUSG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 314 USLANTCOM United States Atlantic Command (Now see USACOM). . Y5 U! s8 x% f' j" N* \7 w7 OUSLANTFLT U.S. Atlantic Fleet. USMAR- FORCENT U.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. : d. r" c- V) m8 PUSMILREP U.S. Military Representative. - ?: ^8 C/ [& d5 z- N5 GUSN United States Navy. : n( s. i2 O$ s5 j4 K6 V& Y9 w" ~USNAVCENT U.S. Naval Forces, U.S. Central Command. . |# T4 y# N1 nUSNAVEUR U.S. Naval Forces, U.S. European Command. 6 R& a/ s: @" d5 |0 F! [/ d; Y NUSNIP U.S. Naval Institute Proceedings. USNO U.S. Naval Observatory. # F+ z4 V1 p8 u) J* OUSNPGS U.S. Naval Post-Graduate School. $ | i% C: \2 Y6 j/ bUSPACAF 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). 3 U7 E2 d- y6 S8 M8 AUSSC United States Space Command. ; F! R1 D0 D) M- P/ l" nUSSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. USSS United States Secret Service. 8 N" H" Q0 B1 l/ I9 R9 _5 iUSSTRATCOM See United States Strategic Command. 0 F: T9 \6 r9 v- ` j7 G: xUSTA United States Telephone Association. 6 w6 s& p5 R& m5 c; g. d) r" BUSTRANSCOM See United States Transportation Command. ! P, d' k, Z# T; ^1 LUT Universal Time. # K, x6 K7 w( G6 O( @+ a* {6 TUTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. % C$ Z. N. x+ r* E* `6 @UUT Unit Under Test (ILS term). " |+ q6 \7 w" h! hUV Ultraviolet. UV Electro- Optics # c1 ?9 X4 g' p0 oTechnologies/techniques employed by optical sensors in the wavelength . x1 X) e- ]# g6 I" s! S- ^. j9 Ispectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. ; s# _0 z1 \4 q$ DUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 316 V Volt. ( Z9 h# I2 V+ b1 |1 Y6 c X: x& fV&H Vulnerability and Hardening. / R8 M9 D5 ?( e7 P- w" vV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. : g2 L; ^! t* f0 A) @* L/ b3 T2 cVAFB Vandenberg Air Force Base, CA. ! \# \/ G$ ^) X* f) H8 [Validation Confirmation that the processes and outputs from a test resource parallel real 7 g% p5 ^' B0 @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. 0 J/ F4 y; M5 i& s1 }3 vVAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases + o; l7 Y. E/ l! P- {! hwith the distance from ground zero; or, in damage assessment, a mathematical % e& t0 ]3 \# H2 f/ ]factor introduced to average the effects of orientation, minor shielding, and ; R& F4 ?0 Z) C5 A* guncertainty of target response to the effects considered. 1 |' c4 l1 A5 Y IVBO Vertical Burn-Out (velocity). VCC Voice Communications Circuit. ' @% k- @0 }) s% w+ b3 VVCRM Verification Cross Reference Matrix. VCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. VDU Visual Display Unit. VE Value Engineering. 3 | N9 S7 W9 ^! C& \- oVECP Value Engineering Change Proposal. . S8 G! m' K4 s& l8 A1 ]! C) }8 PVerification (1) Confirmation that all data inputs, logic, calculations and engineering 8 f. P+ b$ A. @% @# mrepresentations of a T&E resource accurately portray the characteristics, calculations, logic, and interactions of the system under evaluation. : A, m0 ^7 ? C(2) The process of evaluating a system or component during or at the end 6 B) p' e" `- m1 E7 h* C6 a% @of the development process to determine whether it satisfies specified 7 X6 v0 x" j+ _7 }$ Y0 x; P! Wrequirements. VESA Video Electronics Standards Association. / R* E9 L* p3 ]VFR Visual Flight Rules. ' Z# }& s. r: F+ z5 t3 n8 bVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 % g- D2 `" N4 g; Z/ {, ?VIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D 2 P, J7 g' l) HExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a gimbaled airborne sensor with visible, experimental UV and quantum-well IR @1 }1 \6 e8 @ ccameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. 5 x$ q( u, H1 a1 M4 zVIS/UV Visible/Ultraviolet. Visibility Range 0 f5 v p) E) D+ ]/ y% Z(or Visibility) : U2 x$ W9 B+ F$ o% h7 oThe horizontal distance (in kilometers or miles) at which a large dark object can 8 R o7 e, l* I: b, ~5 H" ^: u# D/ {just be seen against the horizon’s sky in daylight. The visibility is related to the ) \& }; `. H3 ]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 or fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). Visible Electro- \, T% Z. o; x& s k6 u/ p) iOptics Technologies/techniques employed by optical sensors in the visible portion of ' V3 U! p" Z, Qthe wavelength spectrum. ( K. v h' r9 Z' p5 @+ J4 t5 fVLAR Vertical Launch and Recovery (UAV JPO term). * k( W4 V. N6 vVLF Very Low Frequency. " F# |" p2 [) n+ |4 V; jVLOS Vertical Line of Sight.

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VLS Vertical Launch System. 4 f. p V' p; V" [$ y% x8 T- YVLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. $ ?9 a) |5 o M: }" X1 JVME Versa Modular European [standards]. ' o2 r( t# u, w q, HVMF Variable Message Format (Telecomm term). VOX Voice Actuation. 3 z6 o X6 ^8 eVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. ( O5 X' W2 A9 U: f& mVTOL Vertical Takeoff and Landing [aircraft]. . v) p" K% c& eVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V , H+ {5 ^# W5 _( {: M# ]8 [$ i318 & P6 A6 i. J; B4 s4 u% oVulcan UK bomber. VV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. 1 I: Z# s' @ z( `6 D: Y6 qMDA GLOSSARY, VER. 4.0 W $ l+ R4 j" Y. V/ i$ F/ K319 W/ With. w/o Without. 2 i; |- I6 M6 W9 N# d ]6 ?, u3 aW/TD Warning/Threat Detection. WAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. , n6 }5 Y/ b+ |' R8 C# e9 VWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area & U5 K, P, Z7 R& u/ U6 E; _Munition. (3) Wide Area Mine. (4) Wide Area Missile. / _, @, ~. q- e" VWAN Wide Area Network (Telecomm/Computer term). 4 _, T- U' I4 ~# T: s V& CWAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more , i& |% J, |2 ~opposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the k- \6 R. |; J$ FJNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead 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 : z9 P" `. Z8 a% c' u! z4 t: scomponents. & ^+ E" F- A$ |6 \! YWARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its ! a7 @) K$ i% H: T9 n6 @- y: parmed forces for war, but intends to launch an attack in the near future. . d) Z y- U' \. vWarning 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). $ Q7 b* S+ d2 f) i: c9 n" O0 V: n HWartime Reserve 2 h6 G0 @' j% [2 P$ R9 I1 |4 h8 r$ oModes (WARM) Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will + c: A9 D7 }2 T# Y- scontribute to military effectiveness if unknown to or misunderstood by opposing , t: c; I! U3 H2 F, icommanders before they are used, but (2) could be exploited or neutralized if $ a5 P( z- B6 V4 c( `known in advance. Wartime reserve modes are deliberately held in reserve for wartime or emergency use and seldom, if ever, applied or intercepted prior to such use. WAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. ' J3 s7 i' k" M( W! i2 |1 RMDA GLOSSARY, VER. 4.0 W 320 / N" F8 _& }, C8 sWASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective # R' B/ _8 B: }3 ^5 Zin contributing to the defeat of the offense. & a5 G* }2 G3 @# \1 X. N. X/ Q: L, \Watch Condition : [ z! ?2 s) F* D0 w+ i(WATCHCON) + O7 @/ N+ T% E- nSeries of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. ; H; {0 _7 q4 o& Y: t; P- ZWAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation. WB Wideband. : g w; s; U3 A6 Z3 b. [! hWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. WCC (1) See Wing Control Center. (2) Weapons Control Computer. $ U7 g: B. L: G0 U& @# rWCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. 4 f8 R# f, ^8 E6 i0 ~ Q) V) eWCS Weapons Control System. 3 v; { a. H: W1 x1 |WDM Wavelength Division Multiplexon. 7 T3 j2 k, G5 F. \( q K3 ]% c1 rWeapon Enabling The set of control functions without which defense weapons cannot be launched.