航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T + t- \& Y* d4 ]7 p8 t8 t9 N$ j298 - y2 x- c p5 b9 |% bTheater 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 : ~9 F6 b. p) P; a8 R. G( q6 |1 FAcquisition/TMD, membership includes MDA TMD Directors, representatives of . o; ] M+ U/ m. ]( F/ M! reach applicable Service Program Executive Officer, and TMD Executive Agents . `- M+ K$ d. i* Tand Program Managers. 0 l, y) A) S( r1 R0 eTheater High ( Q/ |9 \* W$ M8 c% r! AAltitude Area Defense System 8 V8 M/ c3 {& I( x: z) Y(THAAD) A ground-based, air transportable interceptor system that will provide wide area I5 q& U( H5 X4 [" m2 Idefense capability by intercepting longer-range missiles at higher altitudes and at . i; `! e. ]5 \9 I Jgreater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. 7 x. U( m) u: G" @8 uTheater 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. 6 |9 G! x. a! C0 q& s) F NTheater Missile Defense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area R* i( r! ]. D5 ` `' W2 @outside the continental United States against attack from short-range, 3 h9 u( H3 }; q) g+ v. nintermediate-range, or medium-range ballistic missiles. ( I4 K* w- Y$ G7 l4 ]Theater Missile Defense Ground- E" ?! S! o H% ] V7 U" ?! x6 ~Based Radar (TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and 5 w6 Z, Z3 H3 S# J" |, R8 X* wdiscrimination capabilities for the THAAD interceptor system. Also referred to as - ~! r& e1 D5 k) ~THAAD Radar. 0 S z% F) N y$ h+ }/ c8 oTheater Missile Defense Initiative (TMDI) An initiative under which all DoD theater and tactical missile defense activities are + N$ l2 A9 p2 F6 N$ {carried out. Section 231 of the National Defense Act for Fiscal Year 1993 . S* I$ i3 G% k% F0 {(Public Law 102–484) directed establishment of a TMDI office within the DoD. 2 O! U7 X, }' T/ sTHEL Tactical High Energy Laser. % ]2 I n5 d. F8 X+ fThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally , ^/ @- L9 Q4 @3 N8 Uexpressed in terms of calories per square centimeter. : ]& `5 T y2 B1 u9 DThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or " x$ v7 N6 e* O* U9 oreflected 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. : M4 D; d" h* {Thermal Management Technologies/techniques associated with the control and management of " ]1 I: {0 k* R$ P( ? @thermal energy, its generation, dissipation, and recovery. / t0 U2 g p; R+ U$ yThermal Radiation E6 T& C/ u# q/ ~2 `8 hElectromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. * M: |5 p1 ], o5 p* O9 vThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, emitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the absorption of this radiation by the ambient medium, accompanied by an increase ! [+ P$ p) G8 K! H/ win temperature, which results in the formation of the fireball (or other heated 1 s! R# R8 ?' y9 f9 W% E2 oregion) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T , H, F/ N) w% @) o4 {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 exosphere and most or all of the ionosphere. Threat $ C+ N: ]4 T2 U6 t7 lCharacterization N: h7 z5 k l7 Y6 ]2 Z: fAn assessment of the nature, magnitude and intent of an attack in progress. . H2 o# ^' p/ [# E& N1 u' XThreat Corridor * V; m; b8 v" Z- S, l: X(Threat Tube) A tube containing all the objects originating from launch sites and aimed at 4 }! a, o8 Z' @0 O! S- Itargets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management , b. S" }( W1 P1 ~" Fcomputation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic * X- V* M* v# J* \; _' U Emissile 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 % s# `' _$ Q3 qvalue (threshold) required to satisfy the mission need and a performance + t" w/ U( M+ robjective. / I0 A" \& |8 F- B8 \+ uThreshold Defense A defense strategy that concedes that the target can be destroyed at a price ( n8 X, N2 v( N0 I8 |( m- hthat is not prohibitive, but the presence of the defense is thought to require the 5 f4 L0 }/ i9 X9 xoffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. Thrusted Replicas (TREPS) 7 O+ M0 o. P/ OConical decoys equipped with a miniature rocket device. Generally used to ) P w1 T6 v. g. y1 echange the decoy’s optical signature to resemble that of an RV in the reentry phase. y) O" x. @4 d: g; ~TI (1) Technical Instruction. (2) Technology Insertion. - o9 I/ Q$ ?9 I: N2 }TIARA Tactical Intelligence and Related Activities. 6 r m& ?) `7 q: n0 i! vTIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. 3 }- L* I3 m0 i6 J0 o1 F& `% w(3) Theater Intelligence Broadcast System. 1 x0 d8 U# \7 ], v2 b( _0 z6 w. ITIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. 8 L& U8 u# H, t/ a: o3 }: W/ a# cTIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat (e.g., boost phase). " ~0 C0 N/ G O. }4 T6 L: }1 NTiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. ; [7 G% ^1 ]0 o8 C2 {TIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. , X( ~( {" x" |: h8 Y* zTIM Technical Interchange Meeting. 8 h4 e9 w$ x4 a6 s/ ^MDA GLOSSARY, VER. 4.0 T $ ~- ~' T& z. a1 U300 N9 M2 M3 O+ }+ F. E, aTime-Phased n, a# p0 l2 h* p9 K7 l3 x1 KForce and Deployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual " c% u8 G1 s" i* e0 H7 Kunits required to support the operation plan and indicates origin and ports of debarkation or ocean area. % @4 J- Z: }! W/ H- @2 OTime of Flight ' _# @0 y) y& m0 L6 E3 t(Max) The 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. Time Sensitive Targets Those target requiring immediate response because they pose (or will soon 3 K) X/ L( ?- {pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). + e) J1 x2 F4 A, s xTIN Theater Intelligence Networks. ( s H" s2 F( R, _" ZTIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety ) i" R. {- x( Z! fTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) TL Team Leader. TLA Time Line Analysis. 1 h: u$ @% b0 t# ?" WTLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). 1 g! S- h$ f# @TLDD Top Level Design Document. 8 W, V" G' V4 j' S, zTLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army 9 m3 R' ^( E1 o/ pterm). R: K- Y7 G) }, [8 `! STMCC Test Monitor and Control Center. TMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T 3 P0 o( \1 C2 }# W301 2 j- y( a/ o7 a. `" ^TMD C 8 j1 s# H: x9 ?' g& m6 i! F3 ! |- G) h7 ]. R0 f1 N, _I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). TMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. & x% i" ?) q' m0 P \$ MTMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. 0 d; f# c. Z6 _3 I+ R! r0 wTMDE Test Measurement and Diagnostic Equipment (ILS term). TMDI See Theater Missile Defense Initiative. : {0 h; ~8 U0 z5 [2 U) y3 g; UTMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. 7 j! @/ I1 d4 g) S* u T. BTMP Technical Manual Plan (ILS term). 9 D# S# R/ \5 H, c r7 R$ ATMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. TNF Theater Nuclear Forces [Treaty term]. 8 Y0 Y- \( y5 E: {& jTNT Trinitrotoluene. $ W8 Q7 R( v- o& NTNW Theater Nuclear Weapon. / i5 Y8 \) e& @9 m: ^/ q5 W7 QTO (1) Task Order. (2) Technical Order. & T# `8 j1 B8 e5 qTOA Total Obligation Authority. $ I% a0 T: z% ]5 l' B' {2 ATOAM Tactical Air Operations Module. 7 P' S* @; j; V) f/ X; eTOC Tactical Operations Center. TOE Table of Organization and Equipment. TOF Time of Flight. 9 P8 C9 k2 N( F) \$ M* ~5 ^1 BTOI Track of Interest. TOIA Task Order Impact Analysis. % I' R! c4 o( d3 Q3 i( YTolerance The ability of a system to provide continuity of operation under various abnormal , _; M6 _! F( X' r1 w Pconditions. 9 k7 y' v$ p6 Q. |TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T ; l7 d8 ]* [5 m8 K302 TOMD Task Radar Management Details. 6 n9 T' n& g; g0 l( HTOMP Task Order Management Plan. : {: c4 h+ R5 C- uTOMS Total Ozone Mapping Spectrometer (NASA term). $ P3 K+ f8 A( `- ^7 }0 `TOO Target of Opportunity. TOOL Target of Opportunity Launch. 9 S! j0 t" i e6 ?1 {TOP Task Order Plan. Top-Down Pertaining to an approach that starts with the highest-level component of a 9 T# O5 M( L u0 ?3 |' W) R" I7 fhierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down 7 s/ K! |% G2 ~2 ]6 QDesign The process of designing a system by identifying its major components, 3 n& c/ @; Z" T% O( zdecomposing them into their lower level components, and iterating until the desired level of detail is achieved. ! V1 R3 V* j3 tTop-Down Testing The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. 8 m: W( P( |& Z! y4 nTOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power # g1 s# {4 Z8 l5 k+ ?; @8 _technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation Authority (TOA) 4 g- w: p! k' h s7 Y) I$ dA DoD financial term, which expresses the value of the direct program for a given + q* Q7 n) T8 Efiscal year. Total Quality Management 0 k; V0 y3 \1 ]! K: Z(TQM) ) F% y' K! }& s0 o; ^/ m/ P G2 SA management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System ( x8 q7 K4 H& D$ }3 `+ W, \$ J) \TOVS TRIOS Operational Vertical Sounder. 6 I) z* }7 y7 f( xToxicity The kind and amount of poison or toxic produced by a microorganism, or & l. E! f! O2 @, Ypossessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. - e. t4 v% d1 s) E# y, {8 xTPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). % F8 V8 w, J3 R7 F3 L* B. jTPDR Total Processing Data Rate (TelComm/Computer term). MDA GLOSSARY, VER. 4.0 T 4 a3 c; r9 H. |. |, p2 C: \303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). 3 @- N3 `: m) UTPFDD Time-Phased Force Deployment Data. / F6 m9 y1 C8 M: k( WTPFDDL Time-Phased Force Deployment Data List. 2 j, m1 |( j9 _# CTPFDL Time-Phased Force Deployment List. TPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). M4 H0 n3 l0 KTPO (1) Test Planning Organization. (2) THAAD Program Office * _6 r7 e+ P4 T5 G% x% V0 kTPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target % ]) `: b; O) F$ f: D kPerformance Report. * u+ n8 `% o' i; ]8 rTPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) 7 a6 T1 ~" k7 `" UTQM Total Quality Management. . x* m3 h; X* H- i9 rTraceability (1) The characteristic of software systems or designs or architectures or 7 F5 m( f h, T4 z @3 zdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and 8 G/ k3 q8 |5 p# uconstraints. & a2 V) Q7 _* l! ]; }. |(2) The degree to which a relationship can be established between two or 7 G& c( t7 b. P( ^* ?more products having a predecessor-successor or master-subordinate relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. (2) To display or record the successive positions of a moving object. . Y: a7 D d7 B' C0 a(3) To lock onto a point of radiation and obtain guidance from. & Z, y( {; Q" r( y(4) To keep a gun properly aimed, or to point continuously a target locating 4 g. a: `* r# u* @$ \! P2 M3 N' yinstrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the earth. * n. n8 L3 H5 T/ d; H2 ATrack Assessment 2 _. i+ l, V- J; FThe Track Assessment looks for anomalies in an object’s track data. An anomaly 9 L# H# S6 b. M' Q$ J3 rin the track may indicate a hit. & y! z- y# d" w6 \Track, Birth to Death The maintenance of an associated track through all phases of flight (i.e., boost to reentry). " _* ~- L8 l- LTrack Correlation The combining of track information for identification purposes, using all available 8 Y2 C- `$ U+ J F6 Ndata. 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 or place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 304 6 N M2 S4 L* ]1 m& [& z& MTrack File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of the above. 2 b, ~/ F) q( S# V B2 gTrack File-Track 9 d6 A, K* h4 N& f; QHistory 3 L* w# N* R$ L* y% |* gA 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 6 m3 i+ O" _$ e9 Z4 ^0 sthree-step process of data association, track initialization, and track improvement 5 L) i0 \& |$ i" T! X: I/ Wby filtering. Tracking The act of generating and maintaining a time history of an object's position and Q% K# ]8 ^) N3 _: xany other features of interest. Tracking and Pointing Once a target is detected, it must be followed or “tracked”. When the target is 3 v$ T# i' B9 X; `6 Y) R4 ?1 Fsuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing . U0 M' k+ Q+ {: Uare frequently integrated operations. ' C3 f7 d6 J: B3 bTracking Range 9 C" D+ N3 u2 S. y9 u0 C(Max) " K( H( L% x0 B( J* lThe maximum line of sight distance at which a sensor can maintain track of an ' i6 |9 K' x1 I% @object. Track Initiation The formation of the first or initial estimate for a sensor system of the state vector 2 I) Z2 Q- \) ^" bof an object. The process typically requires observation from a number of frames. * Y" D4 n1 ]: z+ s# W) fTrack Production ! r5 n. H, a" h4 L$ d7 zArea ! l8 A: a$ u- j/ N: ~8 q# g4 zAn area in which tracks are produced by one radar station. , S, i( ?8 J- V, [0 l( c! y9 WTrack Symbology Symbols used to display tracks on a data console or other display device. $ i; d, a) d1 v% ]- j% UTrack Telling The process of communicating air surveillance and tactical data information ( W* S7 Z8 d& P* _between command and control systems or between facilities within the systems. I( t2 z E$ C2 k. q9 A- K g. tTelling 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. ( G- v. b. L; b+ w2 h, J3 m0 R# pTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. ' l2 m- {: k4 jTraffic Capability I# i; W$ c, y7 l% Q3 MMaximum 8 b9 q% `/ ^6 Z* K! @# t- U( LThe maximum number of objects per unit time which the sensor system can maintain track files. $ f5 z2 Z) k" u: I& W+ Z5 HTraffic 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 3 p) r8 h1 {2 x7 ^reentry. Trajectory The curve described by an object moving through space. 9 L; V2 Z: B) W. A- l, uTrajectory ) a6 J2 s. A! Z6 G* \9 cHistories Trajectory information on targets recorded over a period of time. 2 w- t" m; u- J0 z3 sTRAK A data base management system (not an acronym). 9 m4 Z% z7 k8 V* b& y7 aTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. + j5 r M% l- Z7 hMDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. J0 o- U8 y" h7 E5 @( @TRANSEC Transmission Security. . j9 X& I4 U2 y0 r+ `3 e4 aTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to Production ' d. j7 x }' V2 x, u$ pA risk reduction process during which the program shifts (passes) from & l, e& r) j- u O9 ]$ L2 `2 ddevelopment to production. It is not an exact point, but is described as a 2 L9 m- O( u L7 c& I5 Nprocess consisting of disciplined engineering and logistics management to V0 n: D9 M7 z' ?) Oensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission - g2 f8 b9 W0 `7 f' p1 [2 B% BSecurity 0 l$ l$ Y2 e' T/ ~5 |2 O6 @$ ](TRANSEC) : D: o, b% g* |0 D5 i9 mThat component of security, which results from all measures, designed to protect communications transmissions from interception and traffic analysis. (See COMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative 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. * e2 t" C0 y$ p+ VTransponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security & B+ @. ]1 h# r8 ]. I+ ^% T3 w8 }5 Qmechanisms to be circumvented. Traveling Wave 7 j4 u& q* ]% @" x' M+ rTube (TWT) * a; k5 _; I% fAn 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 ! O0 K1 { y5 j8 }) \+ E! ythe microwave region. % H9 A; D6 ~ f7 rTraverse (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 5 E8 ?) B( S$ N5 Rused in determining positions of the points. 3 I0 r$ g8 `' {1 f7 YTraverse Level That vertical displacement above low-level air defense systems, expressed both 7 a5 B4 ]; B, K8 C9 e6 Bas a height and altitude, at which aircraft can cross the area. ' `- `( ?% l; x) `3 c& x% {TRB Tactical Review Board. / T' b# t, v# ?TRD Technical Requirements Document. TRE Tactical Receive Equipment. / c( V2 j v5 t( ITREA Transmit/Receive Element Array (THAAD). 5 ]9 Z( N& \% S5 G( NTREE Transient Radiation Effects on Electronics. . R6 W! A8 Q7 ?- d0 T2 {$ I% KTREM Total Radiation Environment Model. & Z# [3 A: g# o) k$ VTREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. MDA GLOSSARY, VER. 4.0 T 4 k" P% V0 p) p: l: E306 TRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. ; H" t& x A3 A. vTRIDENT Class of US ballistic missile submarines (USN term). ' I1 F5 B- I- V) F4 ^# h! _; ~- ITRIDENT I (C-4) US SLBM (USN term). % X/ W6 \) f9 e) e1 E! M0 iTRIDENT II (D-5) US SLBM (USN term). # {- K" U: Y, x( @' N* iTRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. . |3 a5 z9 y# p# j+ UTrojan Horse A computer program with an apparently or actually useful function that contains 3 V3 ?) @. K0 h- B3 G# l6 _! t+ Tadditional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. ! a6 v- x3 D7 MTropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the tropics. (See Stratosphere, Troposphere.) 2 |5 x% |, f# [4 M7 NTroposphere The region of the atmosphere, immediately above the earth's surface and up to - ?$ E9 b* C# z; Xthe 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. ; ]; F4 n7 P' D3 E- Q1 JTropospheric Scatter 2 { c. d# i. O3 x* IThe propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. TRP (1) Test Readiness Program. (2) Technology Reinvestment Program. 6 Q& _8 X5 s: I8 d8 @+ [* r- t" G(3) Technology Readiness Program (pre-acquisition program status). 9 H) _, S6 P9 N4 G4 W- S9 U(4) Technical Requirements Package. : f* Q2 ?6 n/ k/ o" X! n: NTRPC Technology Readiness Planning Committee. TRR Test Readiness Review. 0 X9 @4 F, W9 a# D7 uTrusted . e# a9 m" u4 V' T8 ?Computer 7 y: c$ Z- T7 Z T3 ~System/Software 1 _6 y; |5 A" x' s' YA system or its software that employs sufficient hardware and software integrity $ N" q+ K* S- h. b% X( ^) [, \# omeasures 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 5 R0 Z' L: k7 A) i$ c9 tTrusted Computing Base. This mechanism can only be activated by the person / ^& t5 K% H# C0 ^: ?8 dof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. y( `4 H8 P5 w" p3 x7 s. gTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 307 TSA Technology Security Analysis. 6 Z. m" ?8 V( V. X4 ?% U) w$ yTSD Tactical Surveillance Demonstration. " \7 j. N) Z6 i* V1 F; P& L7 |( lTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. # A+ F6 w, `6 Q& |7 j1 BTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. TSMA Theater of Strategic Military Action. TSP Target Support Plan. # w0 B9 j6 B' zTSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. # b9 s: A* _* v% \8 M$ I5 YTSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. $ P! x1 `+ Q- c5 _0 ]" dTT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). TTA Total Time Accounting. : K- P% ^9 @% D+ GTTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, ! y# ~% e0 [4 F5 {5 |3 l5 f* Wwhich have significant potential for improving testing. 5 t, l$ H' ?7 S$ x: g% KTTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. , Y6 B9 V8 |7 P. v* y1 x8 vTTT Test Technology Transfer. ; t0 _% {; y* J6 y/ v4 i& G8 \2 U+ WMDA GLOSSARY, VER. 4.0 T % l2 P0 C9 T; k3 o$ ?308 TTV Technology Test Vehicle. 7 B. g# ]6 Z ?0 i+ T/ m9 G6 Z8 BTTY Teletype. . F! `. r6 b1 p! P4 XTUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). 1 O$ I- ~8 b0 k1 i/ FTVC Thrust Vector Control. TVE Technology Validation Experiment. 8 t6 ]. i4 |& g6 d) p" `TVM Track-via-Missile. TVV Technology Validation Experiment. 6 N3 V$ |' R0 W* [0 P9 W9 w4 r9 sTW Tactical Warning. ; g: z" B0 w4 nTW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. TWG Technical Working Group. TWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. 2 w; G* P: c. i& x/ r3 K" O' K4 |: STWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). TY Then Year (PPBS term). TY$M Then Year Dollars Millions. Type A - System ' a/ g6 J# a6 p/ `Specification States all necessary requirements in terms of performance, including test - m8 F: z' D# p# m% F, Q/ eprovisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission ) M% D6 \' X7 I! Nrequirements of the system as an entity. 8 O2 T) U1 l4 P) f; \Type B - Development Specification States all necessary requirements in terms of performance. Essential physical : \6 ~3 C6 ?! A( e/ {9 [0 o% lconstraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item % M9 l1 Z! ^5 y6 p$ sfunctional characteristics and the tests required to demonstrate achievement of 4 `' u/ P8 U8 {those characteristics. % _/ z0 z- M/ ]" Q# E0 u, lType C - Product . e( m, r2 \( f* ^) i6 T( Z9 DSpecification / D4 y( n9 V ]3 YProduct 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) requirements. Type C specifications intended to be used for the procurement of items including computer programs. ( M+ F+ K( O7 V" g3 S$ `. R7 lTyphoon Class of Soviet ballistic missile submarines. Typing 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 4 T8 K' Z) _( W c8 `* Aobjects (i.e., SS-18, SS-24). 5 h# _% V/ i% F1 |3 M" gMDA GLOSSARY, VER. 4.0 U . q# b8 f- ^# @+ |6 R309 % D. ?( I! {+ j' |& m+ \U Uranium. - V2 F9 t: \+ N: `3 }8 }9 cU&S Unified and Specified [commands] (pre-1996 term). + E5 j- Q1 D: j3 d1 Y& pU.K (UK) United Kingdom. U.S. (US) United States. U.S. West U.S. West Incorporated. 3 u! m4 t5 D l( [; U) |8 n$ ^U.S.S.R. Union of Soviet Socialist Republics. : c! [5 q7 o3 OUA User Assessment (NMD BMC3 term). 2 K' K, u& ]8 H3 d {/ H0 B$ }, ^UAE United Arab Emirates. UAV Unmanned Aerial Vehicle. * f+ h+ A5 o0 B* y2 G) aUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. $ b* p( A4 Q8 Y' s' }UCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. . p& h2 u; [; n; N( ZUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating 1 Y9 M2 M' I2 h4 rand coordinating program requirements for testing MRTFB ranges, as well as the + e# s: X F, _! H! e8 J+ @) ocapabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the % o5 u' I6 U- {# T% ~1 D+ W1 jProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) 9 m% V. D3 _! ^5 ?9 @Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. . f$ O- ^& U6 f$ `7 m) xUF4 Uranium tetra fluoride. UF6 Uranium hexafluoride. & |1 |, _; i/ H4 F: C: L% N# v0 @MDA GLOSSARY, VER. 4.0 U [: R! ^( {1 y# L% O+ \; `( [310 UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. % o5 s3 ^% ^) d. Y5 Z2 KUFP Unit Flyaway Price. / n$ u# i1 D8 B$ K6 I0 HUGF Underground Facility. UGS Unattended Ground Sensors. 3 [: e1 B4 E( D6 D4 u- eUGT Under Ground Test. 7 ]% [5 m/ x% M* uUHF Ultra High Frequency. UIC Unit Identification Code. UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. # |* ?7 M" u7 M& _( f" }UKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. 6 V" ]1 u+ d( [: F* h' }# tULCS Unit Level Circuit Switch (SINCGARS term). 5 p1 N% B E: O. `ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. + w m3 ]- U# ^( I; R8 {ULTDS Unit Level Tactical Data Switch (SINCGARS term). / q/ K( R0 ^3 B: gUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet 3 d$ R% I) [% t& q0 Z4 c(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). UMD Unit Manning Document. ' B+ W3 f/ x' X! nUMMIPS Uniform Material Movement and Issue Priority System (ILS term). 2 r1 Z* ~7 S1 f- h' ^! N! e$ M2 s0 HUNAAF Unified Action Armed Forces. UNC United Nations Command. " t& `; @ ?7 N3 h$ ~. x9 yUnconventional 5 D; v4 l% W ^0 J2 Z) tWarfare A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare 1 r# k' J' U) R- t+ V" Gincludes, 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. 6 i+ O3 ?: j/ l1 QUnified Action Armed Forces A publication setting forth the principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or 3 N9 d# S) ^1 u$ P, ^4 b4 W3 Nmore Services or elements thereof are acting together. 8 W8 n+ V. _7 N& LUnified Command A command with a broad continuing mission under a single commander and - B9 l W( K' L4 n! }$ Scomposed of significant assigned components of two or more Services, and * L6 ~6 V6 r" R" Z5 Fwhich is established and so designated by the President, through the Secretary 6 F. e- m! Y% [0 z3 @" gof Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 7 C) K# @& E8 w/ ~311 2 `* L! ~7 V- M* h! MUNISYS UNISYS Corporation. & O7 _% G( a S" |' VUnited States Army Space Command (USARSPACE) The Army component command of USSPACECOM. Responsible for the Army - Z& o3 `1 Z. X1 h( w: Eelements of the SDS system. Located in Colorado Springs, CO. . ], x! f c' JUnited States . {4 g( _4 m4 lSpace Command (USSPACECOM) 2 B) ~3 H) u3 h9 D) v2 SThe unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. 4 S1 D) v8 C! ^4 O; \$ KUnited States % S3 W# k: D/ g/ m, A' EStrategic Command ( H V# F4 L9 G; K+ R' b- |(USSTRATCOM) $ S7 h1 J2 m* Z- g& e& YThe DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic & F% d) [2 j6 D! s* c4 E' D3 Zmissile offensive combat strikes. Located at Offutt AFB, NE. United States Transportation # M) C: K% A2 n) o0 [$ G3 @+ G6 I2 JCommand (USTRANSCOM) 6 Z3 a/ Z$ O! J* D$ ?4 q: SThe DoD unified command responsible for providing air, land, and sea % B+ O8 q: J5 C% B8 I+ ]" ltransportation for the Department of Defense, both in time of peace and time of - k2 U& f+ N* Z" \/ {2 nwar. It is also responsible for providing airlift, sealift, surface transport, and 0 b1 M# d3 N# sterminal 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 ) U$ M# g6 a/ N a mAFB, IL.

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Unk Unknown. 6 K- U( ^2 Z9 V9 H6 vUnresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. 1 B f8 ?$ ` }# e- s# O X O# j3 IUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. 3 F4 I! q/ j) n, j4 A& vUOC Usable on Code (ILS term). + [- \( _1 ]5 C, l% P O4 QUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. % Y4 I" s& i% B3 y, _UQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U 6 Q# R! P/ r! d312 4 l6 N; F4 `: P6 S! `USACE United States Army Corps of Engineers. ( X- ^9 @; n' y8 nUSACOM United States Atlantic Command, Norfolk, VA. j/ c4 |3 U, q& B7 w* V) tUSAF United States Air Force. ' b1 O U( B& IUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. # P. [& X- k/ r7 NUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. USAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. / \0 f+ z* n( d+ JUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. & }) ~) c8 }" r4 H8 T) [USAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. & `* X( k7 i8 u$ n3 GUSAOEC 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. * c) a5 p% ^5 O0 r; @; q5 |. ]' ^ GUSAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. USASDC U.S. Army Strategic Defense Command (<1Oct 92). ! U9 e5 w' s1 K* m4 ] f4 rUSASSDC 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. USB Upgraded SBD. USC U.S. Code. : |5 w1 T7 p y0 L, vUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 313 0 }0 K) B; T6 _0 ]9 p7 B+ u% w WUSCENTCOM United States Central Command, MacDill AFB, FL. / v* F. X- z! v5 L" n1 j& E) lUSCG United States Coast Guard. M: v- R9 \0 l7 g1 C0 v- L+ KUSCINCCENT Commander in Chief, U.S. Central Command. ; I5 l- \; g/ UUSCINCEUR U.S. Commander in Chief, Europe. 5 P: s3 Y* e% v) G$ Y7 fUSCINCLANT 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.). 6 ]! `! m7 L+ @) C5 Z) ]5 E$ I5 ]$ o! KUSD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. + `7 ]: x+ g/ YUSD(P) Under Secretary of Defense for Policy. USDA United States Department of Agriculture. : a: @* W: i; a, e! ^" b3 hUSDAO U.S. Defense Attaché Office. 4 t* N w4 o4 tUSDELMC U.S. Delegation to the NATO Military Committee. USDR&E Under Secretary of Defense for Research and Engineering. . D! N; |6 w1 cUser Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine ' U: X: m5 C( X(hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational 8 ]. i5 Y! K; }: GEvaluation System (UOES) Prototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and training for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the 5 t: |2 e. M/ p$ _normal acquisition cycle. % x& O" ^, {7 b3 f; CUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. 0 y: ~& ^ E2 K OUSFJ U.S. Forces Japan. 0 }+ F& ^0 ^3 M% [, D' t, V0 a4 @% MUSFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. USG U.S. Government. USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U " R: ^; V; Z" @9 q0 W4 S314 * v; }+ Y2 L4 f. x# n$ ZUSLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. USMAR- FORCENT + w% _ ~0 y9 X: E8 bU.S. Marine Component, U.S. Central Command. t0 y1 M3 k! T# ~% WUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. * [5 m1 V% L; j. wUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. USN United States Navy. * t8 Q2 m# P, G; {6 ?# M bUSNAVCENT U.S. Naval Forces, U.S. Central Command. 5 Y# E. @# T: Y" H% Y! h9 F6 }9 TUSNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. 1 y! w- o- F. ]' y' cUSNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. USPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. ! V/ m6 _! D" m+ p* s) k; k o6 }USREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. 3 D4 Q9 f* f5 \; J' B) aUSSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. , Q1 @- F0 ]9 R, N# e5 C) GUSSPACECOM See United States Space Command. 5 o, b, M( u8 P& n7 U5 yUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. 5 c; O o9 ^( ` m# l+ E0 X( W. SUSTA United States Telephone Association. 2 C4 d$ O" r+ W0 B8 aUSTRANSCOM See United States Transportation Command. UT Universal Time. 5 G) x. B. M+ I7 S9 n. \+ ]" E9 uUTC Unit Type Code. $ q; X9 @: ]- `* a2 C3 `MDA GLOSSARY, VER. 4.0 U ) U8 v1 C2 F8 d' U# z; o9 Q: K315 6 k6 V) W9 _' k4 Y2 EUTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. 5 @. C+ Q9 Y$ O% b7 \+ MUV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). % @% y8 @$ o5 p! s7 SUVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 316 V Volt. V&H Vulnerability and Hardening. 7 U& L" E* j- {6 bV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. " G) n2 r% Q/ `VAFB Vandenberg Air Force Base, CA. ( p, W h& I# r) m Z1 j/ D ^4 uValidation Confirmation that the processes and outputs from a test resource parallel real # s& W/ B, v% k# z" u! ~7 Sworld processes and are realistically sensitive to change in the environment, tactical situation, system design, tactics, and threat. ' Q4 |5 J% C) u, P8 P+ hVAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases 4 y+ K% D4 y4 i" c: xwith the distance from ground zero; or, in damage assessment, a mathematical 1 q" D5 X& k, ~. K6 L+ mfactor introduced to average the effects of orientation, minor shielding, and - m3 I+ K8 s8 m( xuncertainty of target response to the effects considered. 7 J0 e% P+ B# QVBO Vertical Burn-Out (velocity). * G$ V8 q1 @+ |6 xVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. ) x& V6 p% f9 e1 p( m% aVDU Visual Display Unit. VE Value Engineering. + K6 I$ E7 b. i4 Y% {$ x: L, tVECP Value Engineering Change Proposal. ; K$ }' o: C! _- b$ R9 u& `; @Verification (1) Confirmation that all data inputs, logic, calculations and engineering ; v& q$ x, f' N( y$ R; I/ B1 Q) Krepresentations of a T&E resource accurately portray the characteristics, [" e. T) |( o) t9 P( \calculations, logic, and interactions of the system under evaluation. 4 i% X* f* t; B9 Z% A) }(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. ; V1 ?8 P( W; w$ tVESA Video Electronics Standards Association. VFR Visual Flight Rules. : e3 j9 b& w2 XVGA Video Graphics Array (Telecomm/Computer term). \; K. i! J, J) @VHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. $ p) Q: a3 c2 V" ZMDA GLOSSARY, VER. 4.0 V 317 0 x6 g, x2 z! j+ E" S$ WVIDS Vehicle Integrated Defense Software (USA term). ! T, S0 D U& k) N4 U: w" y8 OVIGILANTE 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 0 L4 h8 r7 `2 a$ ]: R3 qcircuitry 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 precision-tracked with the ANTE processor. 4 g5 X7 R% }3 ?8 v# D7 H9 M. eVIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. VIS/UV Visible/Ultraviolet. Visibility Range ( \& t" h! H: X1 ^- |, N(or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can 6 n9 {$ O" }+ B$ u* Djust be seen against the horizon’s sky in daylight. The visibility is related to the clarity of the atmosphere ranging from 170 miles (280 kilometers) for an : |" S& I1 g( V* u9 S' yexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze + w. S" k- Z, c8 I+ Sor fog. The visibility on an average clear day is taken to be 12 miles (19 8 G) M% J+ H s0 xkilometers). Visible Electro- Optics Technologies/techniques employed by optical sensors in the visible portion of 7 G3 f1 Z' T: ^the wavelength spectrum. ) \0 ~. F. f% U$ w+ h; yVLAR Vertical Launch and Recovery (UAV JPO term). VLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. + h' W' g; e8 n" M' gVLSI Very Large Scale Integration. VLSIC VLSI Circuits. * y. }0 y: J) V/ JVLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. 3 d4 @! P3 e' K7 FVMF Variable Message Format (Telecomm term). 5 b' t# D% j) O5 J+ ?. c% e$ e* ZVOX Voice Actuation. ) S5 c$ e8 j" X% j4 \( GVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. . k. a7 u9 N9 P: yVTOL Vertical Takeoff and Landing [aircraft]. 9 i' c+ l. w8 F: uVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. & P" E! {+ i/ f6 w1 ~MDA GLOSSARY, VER. 4.0 V 6 s. O- B2 H. e6 G! q' `6 n* Q318 7 z* J" W: Q WVulcan UK bomber. 0 c7 x2 Z& }' X% s0 DVV&A Verification, Validation, and Accreditation. 7 ~2 N- U" n- D2 vVVER Pressurized water type nuclear power reactor. 4 s* @) W8 z/ u2 `5 S& P aVVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W 319 W/ With. w/o Without. W/TD Warning/Threat Detection. % z: d, k+ T% j$ D* w7 BWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. . t7 a, n0 k9 K! [# u6 sWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. * j+ U: S) M& _7 S# u! UWar Game A simulation, by whatever means, of a military operation involving two or more 9 s$ V) j% k8 S, B& V; p% Ropposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. ' ?, E& T1 C0 C0 l) V, LWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the " B: K* D/ {& ], qJNTF for use in CONOPS validation, missile defense program design verification, 4 B) l1 C# S$ Q L# i; V6 lvalidation and accreditation, and support CinC/Allied wargames and ) b: V4 O" J# A- cassessments. 8 l3 _5 I @# M' ]3 R/ p& NWarhead 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, / x# @: m! @, d% I( ~* b! kairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related components. 7 J& U" [9 j& w# ?2 @" [ ?& u, ?WARM Wartime Reserve Modes. # [1 M. A0 Y K0 @) }, H$ xWarning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). 6 \! Q9 g" i h1 A( S' S [- N& uWARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) : _9 ^8 [+ ?4 X4 E0 V* R) _Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will $ O$ j8 r2 e, ccontribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for ; Z3 n: _0 K' M4 H8 u3 H/ p' Q4 y# zwartime or emergency use and seldom, if ever, applied or intercepted prior to 6 F! ?* y8 O2 W- {such use. WAS Wide Area Sensor. ) ?. e- x. J/ F. a% m! x3 s$ VWASP Wide-body Airborne Surveillance Platform. A modified DC-10. / Q# V, V: d& {4 @- TMDA GLOSSARY, VER. 4.0 W 320 WASHDC Washington, District of Columbia. # p) \. z/ @; t t* i) u+ a! CWastage (Max) The maximum number of defense weapons which, when used, will be ineffective % z: q' X. p; m4 t) G6 Kin contributing to the defeat of the offense. Watch Condition (WATCHCON) ! u( \4 d" |2 GSeries of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. " }3 d5 Z" c2 t5 j6 tWavelength The distance between two points having the same phase in two consecutive 0 S9 U' J. m \0 s7 ?cycles of a periodic wave, along a line in the direction of propagation. : A: e6 a* M6 CWB Wideband. . q- \1 H: t8 U2 DWBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. " R u [) ?4 {WCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). WCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be 5 X: u7 q: C U+ n* }launched.