航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T 298 Theater Missile * }, o5 n0 M3 ?& V0 l4 aDefense Council / B! [. _+ Q+ A# B, t0 O(TMDC) A consultative body for considering TMD family of systems planning and 5 }! {& T* p: F) Uprogramming 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 Altitude Area Defense System ; ]( N( D' P7 J& a i) r3 [) }: D/ b(THAAD) / U7 G' d# [2 L' OA ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at ( T4 }: w W1 e0 ?greater distances. Will provide an overlay or upper tier to point defenses such as * J1 I m0 z' T7 F! wPATRIOT. Theater Missile # t/ H1 J* A3 ?+ V# b5 Q(TM) $ T& a( J% E6 ]8 @. k. M8 @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 4 \9 d" @2 y# W- i# }of attacking targets in a theater. Theater Missile 0 C0 O% }5 Q0 P/ PDefense (TMD) ) M% P/ {' v KOBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, 6 H. J, v- t4 q: u" o- fintermediate-range, or medium-range ballistic missiles. 6 i; v" V9 Y. R, x! \. N5 C& rTheater Missile Defense Ground- 3 D: C* H/ J# UBased Radar (TMD-GBR) ( C- x" m# D5 E6 W4 ?6 SA ground-based, air transportable sensor that provides search, tracking and 5 L. b. _5 {- O9 L idiscrimination capabilities for the THAAD interceptor system. Also referred to as ~5 u: A* E' h* r JTHAAD Radar. 8 U" E9 m6 P5 P* V- f: PTheater Missile Defense Initiative ' N+ p3 d& A( B8 x# O, z(TMDI) ! X8 \1 Z: E7 D" Z$ A+ [5 N: P6 qAn 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. THEL Tactical High Energy Laser. 2 B5 i1 t0 W$ GThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of 4 X# n: Q2 ?( Q0 ^" R/ vthermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. + h/ F9 W" O& L) `Thermal Imagery Imagery produced by sensing and recording the thermal energy emitted or reflected from the objects, which are imaged. * @2 U6 P E* KThermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. Thermal , U8 ?" J: r d) A# f! [Management Technologies/techniques associated with the control and management of thermal energy, its generation, dissipation, and recovery. 5 r- i9 K( O( I4 I; P5 N3 BThermal 7 _/ x: ^, e8 ]2 R, b4 ^Radiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the - w o* f6 Z9 l% D/ a5 kfireball as a consequence of its very high temperature; it consists essentially of 3 H H6 Y' g* x9 \& J- gultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, * n- R. O0 q$ T6 e3 gemitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the ! M& P# K" Q1 A5 j. [) Zabsorption of this radiation by the ambient medium, accompanied by an increase 1 ~7 ^) k# D' R) o. E2 x2 j S6 a: Kin temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) 3 l2 c- ?& t G# n- {3 t, DMDA GLOSSARY, VER. 4.0 T O4 t6 ~$ H/ ]299 6 Z% F4 P1 Q- `( h" V: dThermosphere The atmospheric shell extending from the top of the mesosphere to outer space; + @+ e: X: L1 m* l9 P( ^$ d9 r! rit 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 + w, V! F$ z1 ]* nexosphere and most or all of the ionosphere. , m9 E v$ r4 k9 bThreat Characterization An assessment of the nature, magnitude and intent of an attack in progress. ; V, o$ R8 Y; [Threat Corridor ) M; N# y4 G7 g(Threat Tube) A tube containing all the objects originating from launch sites and aimed at 1 ?8 T% y; v/ ]$ P5 \2 Z/ H, Ftargets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management % G, N( P1 l) P( U& m; Hcomputation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic / I: L* H/ _# ]8 s# C0 xmissile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable 7 U" X& @4 R6 k" D' cvalue (threshold) required to satisfy the mission need and a performance objective. Threshold Defense ! @+ M$ Z& h" I+ XA defense strategy that concedes that the target can be destroyed at a price " F6 e2 a: K/ ^' Jthat is not prohibitive, but the presence of the defense is thought to require the offense 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 4 t) `. B" n# s* }Replicas (TREPS) , b9 r/ g/ S; n& D" \Conical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry phase. TI (1) Technical Instruction. (2) Technology Insertion. * K9 l5 Z% L( t5 o9 L; J, qTIARA Tactical Intelligence and Related Activities. " e! I0 |) t: u" M/ X8 n; G+ [TIBS (1) Theater Information Broadcast Service. 0 O/ i, X, E5 F" c; O1 d" F(2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. O1 [+ N2 g5 s4 W, c, d1 Y: TTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. + h/ H: _+ C6 X {8 b6 B o& KTIE (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). ! Y, a4 o* ~- R& A1 o) DTiered Defenses The use of defensive systems at different phases of the missile trajectory. 8 s: v5 S$ R" PTIES Technology Integration Equipment System. 2 i: V# e2 A, J: x5 j1 r4 dTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. ' U6 ]+ Y @8 iTIM Technical Interchange Meeting. V: R, @- l5 c8 H( CMDA GLOSSARY, VER. 4.0 T 300 Time-Phased . v0 r! `& L/ n0 C7 QForce and 5 y& O5 z$ q) kDeployment List 0 ^. ^ w2 u3 N m4 ^8 M! `Appendix 1 to Annex A of the operation plan. It identifies types and/or actual ( t9 n! b4 t* \9 N& A, R" m" lunits required to support the operation plan and indicates origin and ports of debarkation or ocean area. * v+ a* H& d$ l; U3 F# L+ MTime of Flight (Max) The maximum time for a booster or vehicle to perform its function from time of launch. 3 y$ c* ` G( g/ ~8 qTime on Station The time the sensor is in its operating position. ; x' s5 z# [6 Z! x$ zTime Sensitive ; _1 Y; Y5 W: Y" z5 U% L) a0 ^% RTargets Those target requiring immediate response because they pose (or will soon ! H8 }5 Z7 J9 U# p) qpose) a clear and present danger to friendly forces or are highly lucrative, 2 k s' R9 x7 G. d2 s: U9 yfleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. " T; i8 n! k4 Y2 `1 J- UTIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. " k# N$ _5 X7 c" `TIP TOPAZ International Program. - {9 M; z8 w4 q5 p. NTIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar 9 G. u1 J$ m+ rTerminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety , g& A0 f. B7 G C, hTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. " w3 n3 D. k4 J7 Q1 |TIWG Test Integration Working Group. (U.S. Army) ( n, e: q: J3 RTL Team Leader. TLA Time Line Analysis. ; d1 B$ ~+ i$ e; i; QTLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. TLV Target Launch Vehicle. TLX Teletype. $ I- e! X& V, A! J4 ?, aTM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). ) h! R: `9 ?4 f- [. l" LTMCC Test Monitor and Control Center. . [ O. Z& k/ W$ UTMD See Theater Missile Defense. * y" S" T9 y, x- L5 tTMD C2 Theater Missile Defense Command and Control. - C/ p" s4 p* Z/ ^! iMDA GLOSSARY, VER. 4.0 T 3 `2 @+ j0 Z3 b" C301 % [) x* i7 d! KTMD C 3 ; J1 w) c3 u% UI Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. / N! y5 G1 y3 d/ i: Q- \$ \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. ( |/ L3 x, q( J' S2 HTMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). * x S# x: s: i3 Z; JTMDI See Theater Missile Defense Initiative. 6 P4 T2 `* C6 i& cTMDSE Theater Missile Defense System Exerciser. TMMM TOMAHAWK Multi-Mission Missile. $ \6 L/ x- s$ j! [3 K0 o' KTMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. 5 s$ ]$ v6 E0 DTNF Theater Nuclear Forces [Treaty term]. 5 }8 f* f2 t7 t8 STNT Trinitrotoluene. TNW Theater Nuclear Weapon. 9 E/ X8 @9 v0 G9 x8 M* @6 |9 yTO (1) Task Order. (2) Technical Order. - }# b% F" h6 N. D" ITOA Total Obligation Authority. TOAM Tactical Air Operations Module. k, P2 u2 |. {& nTOC Tactical Operations Center. 4 L# ^2 n; F' X8 n" VTOE Table of Organization and Equipment. TOF Time of Flight. TOI Track of Interest. TOIA Task Order Impact Analysis. - d# x9 `+ h! ~' w' \+ iTolerance The ability of a system to provide continuity of operation under various abnormal conditions. ) E' f3 k+ A4 [0 c6 j+ ~2 oTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. , k- |* Q; K" p3 s! ?MDA GLOSSARY, VER. 4.0 T 302 TOMD Task Radar Management Details. ) }9 j2 p* J2 S$ p' D0 eTOMP Task Order Management Plan. 2 p& b( c/ N0 ]8 Z1 B5 E2 e3 [' ~TOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. ' x6 J! x7 V9 q3 ` UTOOL Target of Opportunity Launch. TOP Task Order Plan. 2 |1 U. e! J# ?/ u! ZTop-Down Pertaining to an approach that starts with the highest-level component of a hierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down Design 8 _: p3 F. q q8 d( s$ D' EThe process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the 0 S+ C0 K* |" y7 T5 r, O$ j1 mdesired level of detail is achieved. & U2 t9 v; B5 f7 |Top-Down Testing The process of checking out hierarchically organized programs, progressively, / Z! a; l i' D2 s3 S2 Ffrom top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power technology to U.S. BMD applications. : d/ S8 z. j9 i4 E: |: e- GTOR Terms of Reference. ; X5 O s [- J! B& P. o" DTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. 7 e3 t4 L" S: p* s3 a8 m* QTOT Time on Target . Z& o7 o& C0 W# s# VTotal Obligation 2 G( ]# r- l/ G D& d! d6 XAuthority (TOA) 6 }- v: z/ y* y) `% _( [7 }A DoD financial term, which expresses the value of the direct program for a given 7 S9 y z6 [3 F v" P2 qfiscal year. Total Quality 0 a# F2 O( T: L4 ]* E TManagement 4 Y6 |. c& x4 V. ~4 f" _6 E" x(TQM) A management philosophy committed to a focus on continuous improvement to S! t6 T2 l" J5 x; xproduct and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. + x2 H; H7 o7 m$ j, o" oToxicity The kind and amount of poison or toxic produced by a microorganism, or % s, ?6 ~, R( e) zpossessed by a chemical substance not of biological origin. ( a% }' ?- _, aTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. * T8 _/ @4 H) O/ Z) oTPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). TPDR Total Processing Data Rate (TelComm/Computer term). / q: [! Y$ n2 N* @5 [3 E% FMDA GLOSSARY, VER. 4.0 T 1 W' P+ _& v0 `! N% n303 TPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). TPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. 8 l0 [7 _ j/ x% M# h9 ^% vTPFDL Time-Phased Force Deployment List. 9 t% N1 d. A5 a T3 V- m, @0 iTPM Technical Performance Measurement. : Q! ]( w+ N/ o1 F: r9 ]) t. Y. iTPMT Total Preventative Maintenance Time (ILS term). , S$ x9 H. q6 T3 C yTPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. ; z$ c5 I7 C) {* w8 x1 p' gTPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. TPS Thermal Protection System. $ _, C' B5 v% X" U; z- k$ ^( \TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) 5 I6 G+ o9 a6 ^. UTQM Total Quality Management. Traceability (1) The characteristic of software systems or designs or architectures or # [% H/ E% r5 C; T/ bdomain models that identifies and documents the derivation path 9 @% P8 ]( A6 t1 i) Z ~8 c4 l(upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or 7 N0 [2 i% b2 Omore 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. (3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. (5) The actual path of an aircraft above, or a ship on, the surface of the ' h$ D8 x) E! u5 vearth. 8 M! g8 ]5 k5 t0 _Track Assessment 8 W+ j9 h2 [2 J, Z a5 o y; z( d$ iThe Track Assessment looks for anomalies in an object’s track data. An anomaly . p0 ?( Y$ b5 }8 u8 Hin the track may indicate a hit. Track, Birth to . J7 w. Y( Z! _* W$ f$ ]Death The maintenance of an associated track through all phases of flight (i.e., boost to reentry). Track Correlation The combining of track information for identification purposes, using all available ' T* u: ]" x3 B1 q! s; adata. 6 c5 t$ S4 C/ R) V- j2 n% C" U, yTrack Extension This term usually applies to improvements in track estimates by use of new data. 5 q. R' Z# j5 \1 l& D0 e) dIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). + P4 p( J5 `* EMDA GLOSSARY, VER. 4.0 T 304 ! p5 `* A% s& T1 n% l7 LTrack 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. $ O6 k5 N! ?4 q! }: c1 w: ?; r" mTrack File-Track History A set of individual track reports on a particular object, which taken together 1 [( x! W/ w, Q( Y2 S# W4 {produce useful approximation of that object's future position in space. Track Formation The process of determining the track or tracks of detected objects. It is usually a three-step process of data association, track initialization, and track improvement by filtering. . i; k! `, |. `, I4 m; O2 P8 QTracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and Pointing Once a target is detected, it must be followed or “tracked”. When the target is 0 _3 J) }" ^# w8 a. rsuccessfully tracked, a weapon is “pointed” at the target. Tracking and pointing ; I0 t! I$ M2 d9 care frequently integrated operations. 4 p3 {: Q/ E4 c8 L( u' \* rTracking Range " B' ^0 o6 z/ q; L& J(Max) % F. d* M3 I% lThe maximum line of sight distance at which a sensor can maintain track of an $ x$ Z9 s% K+ q- B7 b/ x; V# Fobject. ( U; ]# c m0 x( TTrack Initiation The formation of the first or initial estimate for a sensor system of the state vector L/ {6 d7 Q8 K9 Aof an object. The process typically requires observation from a number of 6 B* n4 m1 z( E& ]* c& |/ p8 c4 yframes. Track Production Area + k2 G/ g. b' A N5 A2 R2 E8 I1 a. TAn area in which tracks are produced by one radar station. % S( A& R+ w( p5 \9 a6 MTrack Symbology Symbols used to display tracks on a data console or other display device. / G: |& S H5 y" b0 T9 zTrack Telling The process of communicating air surveillance and tactical data information : {, c: ]" B! r1 U2 f' j8 t' Fbetween command and control systems or between facilities within the systems. ; e4 M6 F8 X5 x9 d7 @Telling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. 2 l7 q- m9 j- bTRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. ) {- i7 C8 E/ v2 `Traffic Capability Maximum ( |' q/ v7 d: `6 iThe maximum number of objects per unit time which the sensor system can maintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. , |$ y/ W$ g- A" h( Z n& \2 o& q6 l! E5 `Train Threat geometry with objects placed in a line (string) along the velocity vector of reentry. & u& |$ A& t) XTrajectory The curve described by an object moving through space. % T+ M% i* i% i, o6 L2 kTrajectory , M( n' l7 Q% ^, y" uHistories * W/ t0 H" {/ [7 F! W+ bTrajectory information on targets recorded over a period of time. 1 A1 ]- L7 B# A* U& e) t0 gTRAK A data base management system (not an acronym). % ^3 F/ G1 d# L" d* _Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T 305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. , F8 A: x" o# r3 s* U* O" rTRANSEC Transmission Security. * Y. q- [3 B. y( jTransition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to : _* v9 V& T0 c, b' x- Y4 z. ]Production * n' g4 Q( t# U. N9 }A risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a process consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission Security 0 J2 R- ^: ?4 A. I% u(TRANSEC) % t; C( Z2 }8 {That component of security, which results from all measures, designed to protect g7 q* C7 V. {5 w- W7 t$ }* a0 M$ [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 8 r _: W. {; |" Z' c, z) Zspeed of the fluid is subsonic in some places and supersonic in others. This is encountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. : q/ u# E* z- {6 I/ M1 e- PTraveling Wave Tube (TWT) An electronic tube in which a stream of electrons interact continuously or . u2 [! X) G2 Q+ i7 J# s: _repeatedly with a guided electromagnetic wave moving substantially in % ~2 h# b/ {! F4 r% Osynchronism 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 the microwave region. 4 s1 h' e, R, lTraverse (1) To turn a weapon to the right or left on its mount. 1 l! J) L6 j: o1 Z& }: H$ w/ v4 A% z(2) A method of surveying in which lengths and directions of lines between points on the earth are obtained by or from field measurements, and used in determining positions of the points. Traverse Level That vertical displacement above low-level air defense systems, expressed both as a height and altitude, at which aircraft can cross the area. + p( T |# p* J! s: S7 V g( _TRB Tactical Review Board. TRD Technical Requirements Document. 1 R) x) f- l( j7 \! v0 BTRE Tactical Receive Equipment. ; E" _' F0 L9 D$ R4 y8 X4 o+ p/ bTREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. 0 |# H0 I1 E9 T4 {" {( vMDA GLOSSARY, VER. 4.0 T ( t( P2 o6 `9 d! }8 a306 7 p H j& \9 H1 B* {' UTRG Threat Reference Guide. TRI-TAC Tri-Service Tactical Digital Communications System. ) X+ V2 @+ B7 e& mTRIDENT Class of US ballistic missile submarines (USN term). 8 }/ N7 y; g" Y+ b" a* m' kTRIDENT I (C-4) US SLBM (USN term). 5 W: N$ N5 Q6 x( o3 QTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. % W% E, g) {; r2 d. D: qTRMP Test Resources Management Plan. # q: L4 W" l8 n9 u0 G) z6 q. U% }) fTRN (1) Task Requirements Notice. (2) Test Requirements Notification. * D: v, Z8 P% W. ]. O# _: @ JTrojan 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 performance. TROPO Tropospheric Scatter. % v& `( l5 U& s$ e* f( STropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of 3 b+ J8 p6 S4 S2 Q) gabout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the tropics. (See Stratosphere, Troposphere.) 8 F' r$ N6 M* g1 F0 u; K0 [4 U7 xTroposphere The region of the atmosphere, immediately above the earth's surface and up to the tropopause, in which the temperature falls fairly regularly with increasing 5 K& U9 v. }+ a7 k- z% m2 `- saltitude, clouds form, convection is active, and mixing is continuous and more or less complete. Tropospheric Scatter 2 k5 a4 K7 o. N) lThe propagation of electromagnetic waves by scattering as a result of & Y- r7 N. U+ t3 U2 r) {6 I7 Firregularities in the physical properties of the troposphere. 7 F) E! S3 l$ R" p: m+ tTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. TRPC Technology Readiness Planning Committee. TRR Test Readiness Review. & s, X M) ]& vTrusted Computer System/Software A system or its software that employs sufficient hardware and software integrity 9 m: v9 W- O0 I! Tmeasures 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 Trusted Computing Base. This mechanism can only be activated by the person of the Trusted Computing Base and cannot be imitated by un-trusted software. 1 K1 i2 l: e: r( V( oTRW TRW, Inc. ) _% D" r. Q* N5 `' B# WTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 307 , p+ P$ V- `/ _8 VTSA Technology Security Analysis. 0 ]% |. v. H! Q1 u$ @TSD Tactical Surveillance Demonstration. a1 K3 J# X, ^: o+ w+ T0 i CTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. / n; N }" S. KTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. " x. Y! c8 o" t7 ~: [( G' I& kTsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. . j, P" q. G& @TSMA Theater of Strategic Military Action. + x5 Y/ p- ?( BTSP Target Support Plan. # X" U1 P" u: k3 q$ ?TSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. % Z5 e. @2 Z& oTSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. TT Total Time. TT&C Telemetry, Tracking and Command. TT&E Technical Test and Evaluation (Army). 3 x3 e7 p' p) _1 sTTA Total Time Accounting. TTBM Terminal Tier Battle Manager. 6 z) {$ j" J% j/ bTTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP " ~# S8 p% @2 a7 r; z2 K$ Fprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). , t5 y @" \6 k( w* t! U \+ sTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. ! A1 v, q% r) ^$ R4 |TTT Test Technology Transfer. 5 G3 j) G0 |/ Y. e1 h% I- vMDA GLOSSARY, VER. 4.0 T + \2 P3 y! l1 A7 X! F308 TTV Technology Test Vehicle. TTY Teletype. + e. C; ~0 C! j% z( D+ FTUG TRACE User Group. 4 \6 t2 j$ {! f S! gTV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. TVE Technology Validation Experiment. TVM Track-via-Missile. TVV Technology Validation Experiment. TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. 2 ]& h9 I$ H, BTW/SD Tactical Warning and Space Defense. TWG Technical Working Group. ( V" x1 [% r! E. L$ n- l5 W3 p' V! P) kTWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. . N& j- i& q' e! f( T: BTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). TY Then Year (PPBS term). * D3 Y" ]: H( P5 \9 t' JTY$M Then Year Dollars Millions. Type A - System ' X( j7 N0 {+ qSpecification States all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission 3 ~( k+ R6 X5 ^1 O4 ?; w0 Urequirements of the system as an entity. Type B - Development Specification * X! F" b" u# y1 kStates all necessary requirements in terms of performance. Essential physical / F5 Q$ b4 i* J ?1 Jconstraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item functional characteristics and the tests required to demonstrate achievement of those characteristics. Type C - Product . W2 ]8 o, M Z! USpecification Product specifications are applicable to any item below the system level, and " P) j1 q U; n, Y6 q6 C7 ^/ Smay be oriented toward procurement of a product through specification of + W% [" D2 J( Q6 `8 Mprimarily function (performance) requirements or fabrication (detailed design) 8 Q! b' P$ M l; K9 N4 Z& grequirements. Type C specifications intended to be used for the procurement of 6 C8 x2 s1 s ?* [) f2 N- ^/ ~) xitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. 7 \2 z$ }* K7 g. G9 R; @1 lTyping The act of recognizing objects by measuring a set of observables, computing a ! E4 @+ p% {/ f5 D4 }# D6 k2 `3 Nset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). 0 F# Z) k5 C v; j" gMDA GLOSSARY, VER. 4.0 U ( I, q' ^( {8 v1 H309 U Uranium. 2 v& z$ \# @0 e* Q0 Q' U7 B5 v" _# SU&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. U.S. (US) United States. ! t: d+ ]/ ^6 |3 T* dU.S. West U.S. West Incorporated. % U" y# p7 D m, f( bU.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). : ~! n `0 f: X# h5 GUAE United Arab Emirates. 9 {% ?) b! U* N/ d8 SUAV Unmanned Aerial Vehicle. 2 n0 ^, ^6 C3 x3 [/ i( R7 TUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. ! c' y* w5 K- {UCAP UAV Combat Air Patrol. 9 ?# i# q/ S5 w0 dUCC Uniform Commercial Code (US legal term). 4 {4 C& V' ^. f8 `9 ~UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. ( K' b# x* M C1 tUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). . t9 B8 z: M+ x8 k/ I( GUDS Universal Documentation System. A standardized comprehensive tool for stating ( Q1 K3 z0 C4 W" Y w. {and coordinating program requirements for testing MRTFB ranges, as well as the : [5 s5 n% U' I/ H- y7 y1 \1 Gcapabilities and plans of test ranges to support program requirements. It ! W# x3 [9 O" ]0 {" V0 J3 Qconsists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), 1 `) b$ H- k9 j- }2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) * [" y# ~, {& o uOperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the / \& {" O1 C- V8 d$ J& i- OOperations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. * K% t8 _, `* D/ s+ j* pUEME Unified Electro-Magnetic Effects. UEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. . [& N! m7 P; ^: sUF6 Uranium hexafluoride. 2 j: y) \3 Z3 n+ @! }MDA GLOSSARY, VER. 4.0 U 310 + ~" ]5 w! p- s- O6 \! l- O* {UFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. 7 r/ F$ u, Z S) @+ J: |UGF Underground Facility. 5 g/ T: F% c1 h" h; VUGS Unattended Ground Sensors. & j1 Y/ i# G# H. v$ b7 y( o! w$ qUGT Under Ground Test. 1 W0 c' ?4 l3 ]7 U6 _UHF Ultra High Frequency. . e( v0 i9 n8 T* TUIC Unit Identification Code. ( D+ ~" G! @! `% e0 ^+ ^UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. : b9 N# \0 g. I8 `UKEADTB UK Extended Air Defense Test Bed. 3 m4 F' t7 e9 k4 \" @UKTB United Kingdom Test Bed. : J' ~) x6 X S- l2 @( ?1 IULCS Unit Level Circuit Switch (SINCGARS term). 2 K& I8 g* c2 F" D1 gULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. 5 e/ d8 X$ p/ h. YULTDS Unit Level Tactical Data Switch (SINCGARS term). : P* S. o3 D/ k- oUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet 9 k8 i' t& y% K4 V(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). % |! V" S) s* q* ]; N# h" wUMD Unit Manning Document. 9 T" [0 L) \3 ]* k' D, fUMMIPS Uniform Material Movement and Issue Priority System (ILS term). " Q }5 M" b/ D& O2 o. TUNAAF Unified Action Armed Forces. UNC United Nations Command. * E: o* P* ]4 B/ T' s& hUnconventional Warfare " w. v5 ^# s8 ]0 R1 C# F. p1 @' ^A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare $ W* [9 T i5 n& d; xincludes, but is not limited to, the interrelated fields of guerrilla warfare, evasion . d: C9 n) S1 }, l/ L w7 `7 Gand escape, subversion, sabotage, and other operations of a low visibility, 6 O/ ?. y* j+ u3 T6 fcovert, or clandestine nature. $ W4 C5 m: p. m# E8 ^Unified Action ; s: ^' J# M$ x. b; G. ^Armed Forces A publication setting forth the principles, doctrines, and functions governing the O% z$ v2 e0 e- x: Nactivities and performance of the Armed Forces of the United States when two or 3 ^) x7 `/ _2 C8 W6 X. emore Services or elements thereof are acting together. 2 ]* c6 b9 Z- H& S4 O% RUnified Command A command with a broad continuing mission under a single commander and ' O E1 F. Q! Q Ccomposed of significant assigned components of two or more Services, and which is established and so designated by the President, through the Secretary of Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 + S$ B7 |' r2 P0 D F5 J9 c4 `UNISYS UNISYS Corporation. United States ; E; P7 C+ u* D6 C6 a! W1 Q' X" x8 cArmy Space Command # t$ |6 r- P% @2 f4 R/ V& g(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. United States Space Command , U! W% X6 k3 E: a" r(USSPACECOM) C& h% _4 L" s% P6 H! HThe unified command responsible for planning and conducting ballistic missile 7 ?$ f5 C) {5 |0 S: mdefense. Located in Colorado Springs, CO. % i3 U# c- Y5 M/ Q2 H* [# A/ DUnited States Strategic 1 j! n1 C3 f* F9 y5 w$ mCommand (USSTRATCOM) # W$ t6 t+ x* F* e4 t2 FThe 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 ! l; [/ N! B6 @; m# I! z* o! I(USTRANSCOM) . n& |' x( C j% Q. v4 i3 D( P( |The DoD unified command responsible for providing air, land, and sea transportation for the Department of Defense, both in time of peace and time of war. It is also responsible for providing airlift, sealift, surface transport, and ( o6 Q- I# M, ^terminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces W4 f! \. `" F* ]# X" Kon a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. 7 d4 W; Z @" c9 R. x$ `1 \Unresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. UNSC United Nations Security Council. $ C0 f0 v) y& M* |5 BUnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). UOES See User Operational Evaluation System. 3 `* w- I+ P& XUPD Unconventional Passive Discrimination. $ W9 c+ `9 R a! \2 m" V: ?1 r, [9 qUPS Uninterruptible Power Source. ! `8 Z- r8 I/ B( d; M) eUQT Unit Qualification Training (ILS term). 8 Q; \6 r8 f/ rURIP University Research Initiative Support Program. / D4 W, `! I7 R; V$ d( t' f; xURL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. . o# E1 |' z. n& t* kUS/UK United States/United Kingdom. 6 [( ?2 L4 F% x0 L$ Z, F* y( {9 ?USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. : C/ r( [9 b+ D7 KUSAAE U.S. Army Acquisition Executive. , y- K# L2 T3 iMDA GLOSSARY, VER. 4.0 U 312 USACE United States Army Corps of Engineers. 0 ~. H% `" B' D, `, Q$ U, Q' PUSACOM United States Atlantic Command, Norfolk, VA. . s: L; w& N7 i9 w) N+ wUSAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. + }1 R* o& S' ~! T7 Z# p3 M4 E5 k) KUSAF/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. . P: j1 ]9 k% E( ~USAFE U.S. Air Forces in Europe. USAFLANT U.S. Air Force, U.S. Atlantic Command. ( Y9 ~; r- J) m# W- _, b" X7 `USAKA U.S. Army Kwajalein Atoll. 4 R: }& A* J: y* q% CUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. 9 |" t; l9 J6 N4 `0 ~2 fUSAMSAA U.S. Army Materiel Systems Analysis Activity. $ H! I; \. e8 b0 j4 S# p9 Z; {% @USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. 9 @3 C- s. W+ lUSARCENT U.S. Army Forces, U.S. Central Command. / I7 P& j. f3 o, h2 M5 S: Z v- gUSAREUR U.S. Army Forces, U.S. European Command. * y* I" g9 ^* uUSARLANT U.S. Army Forces, U.S. Atlantic Command. % }6 }& ^6 C( p& PUSARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. 5 j* X+ _% F9 u1 eUSASDC U.S. Army Strategic Defense Command (<1Oct 92). USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL $ U3 d% C' _. c8 m/ i$ ^8 t% rUSATECOM U.S. Army Test and Evaluation Command. ( U& X( ?" N: [0 m# ?USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. USC U.S. Code. USCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U N4 A) j6 V( D0 z, G313 1 _4 V L3 e; BUSCENTCOM 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. . I4 l- X' u) u. r; g! u: WUSCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. USCINCTRANS Commander in Chief, U.S. Transportation Command. ( N9 J- c. |: z" Z( t$ F, t" ?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.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. USD(P) Under Secretary of Defense for Policy. " B$ c1 H: L X) uUSDA United States Department of Agriculture. ; _% N. y" F9 @: ?3 B6 _% `8 NUSDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. ! u# z3 H: [4 n) y* TUSDR&E Under Secretary of Defense for Research and Engineering. - L- J) t: \! [; e2 }User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine (hardware) or program (software) that is compatible with a person's ability to $ s5 E2 m* j; q7 V4 ~! h8 Loperate it successfully and easily. User Operational & |" ]3 Q& h9 [- J: XEvaluation System (UOES) " \* A& M+ i- }" @( V* j. GPrototypical system developed and tested as part of the early phases of the : R, y- K* a& `, s" S1 k$ n) Odevelopment 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 normal acquisition cycle. 8 P# j1 ^- g7 q0 Y4 q8 @ U9 h% gUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. USFJ U.S. Forces Japan. USFK 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 - k; D% d3 U+ F" H( g$ \( a8 [8 A8 X314 USLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. USMAR- FORCENT U.S. Marine Component, U.S. Central Command. ; l' P, H" C$ a) s( AUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. " V- A1 K9 T- L9 W) A; K( @) DUSMC United States Marine Corps. # c2 C0 C0 X( p/ OUSMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. + I+ w; w, u4 M: s+ c7 XUSN United States Navy. * \, ]4 i2 l1 JUSNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. 8 V( J8 L( H) i4 d L0 q' G3 r l* YUSNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. - T j4 M; ^( ]6 i$ FUSPACAF U.S. Air Forces, U.S. Pacific Command. : E" Q7 F- B! Q1 D! M* j3 ^5 FUSPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. USREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. USSPACECOM See United States Space Command. USSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. 2 l. `) N* R: p! S. b+ AMDA GLOSSARY, VER. 4.0 U 315 / A3 K- i% F$ D& O, qUTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. UV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). ( {% N0 H+ M1 w# R% Q8 xUVPI Ultraviolet Plume Instrument. UW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V - g( I) E5 e- A; F+ _( N, {, B316 V Volt. ! G* `+ `2 Z l7 r7 c1 D/ y6 } V$ r6 DV&H Vulnerability and Hardening. ( x# R/ e2 H9 k" ]7 O% [V&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. + p4 G5 G- o4 |. K$ @Validation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, tactical situation, system design, tactics, and threat. 3 X+ `9 M8 l1 S9 b# |' X7 T1 x$ ^VAMOSC Visibility and Management of O&S Costs. ' V2 w/ l0 B) s4 x. u4 u5 m- B" n3 @VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases with the distance from ground zero; or, in damage assessment, a mathematical : A1 L) s9 f1 a5 f Z; efactor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. 3 Q& z2 T: ?% |- E6 M+ y7 i% l! n: Z0 ?6 ?VBO Vertical Burn-Out (velocity). 5 p X& v6 O$ j0 [" kVCC Voice Communications Circuit. , Z$ D) w6 T! o4 S7 P0 H tVCRM Verification Cross Reference Matrix. VCS Voice Communications System. ; g7 G: j; e; a# }3 x3 a" ]VDC Volts Direct Current. VDD Version Description Document. 4 q0 b7 }" D) w* v1 ]5 iVDU Visual Display Unit. VE Value Engineering. VECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering ) t$ n" U0 ]7 {, ^% E, ^$ O" x2 v) @8 `representations of a T&E resource accurately portray the characteristics, 2 z8 }+ T0 Q7 o* Q. a: Xcalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end ( x& w, }" P! w9 S/ ]of the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. VFR Visual Flight Rules. VGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. " [, F! v* d5 [6 M7 ?VHSIC Very High Speed Integrated Circuit. + n* A. y) w7 Q1 O3 V; D6 N, kMDA GLOSSARY, VER. 4.0 V 317 4 I: Q$ b* C% {6 n3 JVIDS Vehicle Integrated Defense Software (USA term). VIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D ; @! N1 m8 N) u( u: d* q3 EExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional % ^, y$ |/ W* k& E& K8 {circuitry and commercial components. Project also demonstrates VIRGIL, a 9 J" A5 h2 D% }# o+ u# m0 agimbaled airborne sensor with visible, experimental UV and quantum-well IR " |6 L/ f# h" S7 V& @. O& V" Z# }cameras capable of tracking targets that can be detected, identified, and * w7 x+ |9 u6 h5 Dprecision-tracked with the ANTE processor. VIM Vibration Isolation Module. + I2 m6 v. x& u% Z( j5 r4 zVINSON Encrypted Ultra High Frequency Communications System. $ e% h9 h, Q7 J: ?4 H! p8 ~VIS Visible. $ x( e& `! x( _% O8 R- H6 t/ C/ NVIS/UV Visible/Ultraviolet. % ], v+ U- J% t) e9 ]Visibility Range . ]- E7 E( n* G* L+ j) f(or Visibility) - k5 O5 G, s# zThe horizontal distance (in kilometers or miles) at which a large dark object can / n: U3 V' N Wjust 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 6 \# c1 |6 d' I! v/ U0 \# H2 u9 Nexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze " M) F' W; X' [or fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). * S- j9 [6 z/ H) ~" u7 zVisible Electro- Optics Technologies/techniques employed by optical sensors in the visible portion of 1 F/ q& b6 H( N) e* zthe wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). " P5 F2 A+ n2 ]1 L; C( ]+ cVLF Very Low Frequency. 5 K n) U9 S2 S" i- g( ], Q6 `4 M+ kVLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. VLWIR Very Long Wavelength Infrared. 7 L, t# y! u* Z/ T0 dVME Versa Modular European [standards]. " H7 @5 Y6 j9 g) v- S4 t$ dVMF Variable Message Format (Telecomm term). ) b6 Y& K8 m9 u$ A* ?1 V. h$ SVOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. ' }/ v5 j, o ^6 o/ B T+ |VUE Visible Light/Ultraviolet Experiment. MDA GLOSSARY, VER. 4.0 V 318 Vulcan UK bomber. ' N4 H: o6 @9 Y) o( g2 O* PVV&A Verification, Validation, and Accreditation. VVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. MDA GLOSSARY, VER. 4.0 W . p4 }/ g+ ^3 F) s( y# ]319 W/ With. w/o Without. ; @+ N/ o2 @! z7 b$ g2 _! n* V2 J5 oW/TD Warning/Threat Detection. ) U6 l ?% l4 i: hWAA Wide Aperture Array. 0 _- C# Q( J/ E. U3 S1 iWALEX Warfare Analysis Laboratory Exercise. WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. 9 U6 c: r* k( _9 xWAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more ! b u$ k+ `' U9 i) F- }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 JNTF for use in CONOPS validation, missile defense program design verification, 8 W) i5 ^; w1 i( gvalidation and accreditation, and support CinC/Allied wargames and ( q8 _# m l$ W# k3 a Q' e Aassessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. 3 o+ w2 d, G5 A4 p, j; T6 HWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, 2 ^4 M& V; H$ h$ g2 _" Iairframe, motor, or guidance section. Warhead Section A completely assembled warhead including appropriate skin sections and related % P( u% n9 k7 _1 Y. [7 Kcomponents. WARM Wartime Reserve Modes. P: K% j5 v/ e& |3 F) `Warning of Attack A warning to national policymakers that an adversary is not only preparing its 2 j- b$ F8 ?( karmed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). * y: n" s6 F1 i0 jWartime Reserve Modes (WARM) Characteristics and operating procedures of sensor, communications, navigation 8 c' g! T1 r$ |aids, threat recognition, weapons, and countermeasures systems that (1) will contribute to military effectiveness if unknown to or misunderstood by opposing ' F$ ?6 Z, o. t6 }commanders before they are used, but (2) could be exploited or neutralized if . Z; l$ M$ V B8 O/ {; ~. uknown in advance. Wartime reserve modes are deliberately held in reserve for ; t' R( ?; Q7 _) G3 L5 nwartime or emergency use and seldom, if ever, applied or intercepted prior to ) u9 q T' Q8 W* ?8 t) G3 t# w$ ]such use. WAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 8 ?# Q: k2 d" q5 Q9 L, }WASHDC Washington, District of Columbia. 6 C' T6 ?& ?# S& q9 J% FWastage (Max) The maximum number of defense weapons which, when used, will be ineffective : ^2 X1 E p+ p$ v* `in contributing to the defeat of the offense. Watch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. ( P* [% h: Q* w' R, ZWAVE Wideband Angular Vibration Experiment. $ s' w3 j3 V- F7 p0 N9 KWavelength The distance between two points having the same phase in two consecutive 5 I% B# M7 K5 P* {4 N2 M( Ycycles of a periodic wave, along a line in the direction of propagation. WB Wideband. # R6 ?3 D! B, o: J$ N0 AWBM Weapons Battle Manager(s). 1 f3 J0 M2 p" z b9 XWBS See Work Breakdown Structure. 6 L( T [1 ^9 c& V& [/ _: D2 U. oWCC (1) See Wing Control Center. (2) Weapons Control Computer. 2 i9 L; w( y$ A& c5 c7 Y" p; jWCG Workstation Computer Graphics (Computer term). ! M" ~( J9 C& PWCP (1) Weapon Control Processor. (2) Weapon Control Platform. # t, }% E/ P* ?) rWCS Weapons Control System. : d% Z1 Q& J8 k+ g0 P$ pWDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be . d0 F$ ~: M' T* o- ~( j' Klaunched.