航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T + z4 u% V2 P) Z$ d T+ f298 9 d# T# Z' H7 a& r! a. [# u* A: [0 Q1 CTheater Missile ' o& f7 [2 ]5 J1 V! l' C v5 eDefense Council 1 ?3 j/ a, U' q2 v) E/ J ]; W(TMDC) A consultative body for considering TMD family of systems planning and 9 F; |2 A! R2 Z) k1 \programming issues; chaired by an Assistant to the MDA Deputy for Acquisition/TMD, membership includes MDA TMD Directors, representatives of ' ~ Y$ A4 O1 x' I2 m0 Neach applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. Theater High $ q0 a8 w1 l7 iAltitude Area # f! m! W3 j- uDefense System 6 S0 C% [6 d6 H' E(THAAD) A ground-based, air transportable interceptor system that will provide wide area . `3 i' l# J @' K/ z% c! Vdefense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. 9 O+ d `! q* ZTheater Missile " z1 ]/ v' q+ i% l6 Q(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. # n$ h" P/ m) u Y% |: L' hTheater Missile + b& ?$ M8 [7 \Defense (TMD) , A/ g2 H! s5 M+ E9 Q) n* YOBSOLETE. The strategies and tactics employed to defend a geographical area outside the continental United States against attack from short-range, intermediate-range, or medium-range ballistic missiles. 5 K F) o) p) N" @0 i8 y8 G5 \Theater Missile Defense Ground- Based Radar % ~) g$ o* X \, t! b+ \2 \- E! w- q0 J(TMD-GBR) + R) Y f5 ~* e. ]A ground-based, air transportable sensor that provides search, tracking and % N# t* Z) [: F+ y9 vdiscrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. - O* a+ [1 p: O# i. V0 u& w; Y9 ZTheater Missile - V( B9 D) l0 f4 N3 zDefense Initiative (TMDI) : h6 D' H$ g q0 KAn initiative under which all DoD theater and tactical missile defense activities are d9 \7 R. d8 h2 Qcarried 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. * v. l7 ?0 E0 c8 U) [& i6 [THEL Tactical High Energy Laser. Thermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally # G) m+ \+ x) A( Dexpressed in terms of calories per square centimeter. ; `8 h( _& L8 J) w8 [Thermal Imagery Imagery produced by sensing and recording the thermal energy emitted or * }8 N4 [) _# B8 s- e: k, Oreflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree " `& o9 L! P, e# zthat structural components fail. 7 a$ A( ^! s% R* x/ W$ E' VThermal Management ; l @+ |0 U! Z4 b& PTechnologies/techniques associated with the control and management of : V" F2 Y3 b( O6 Uthermal energy, its generation, dissipation, and recovery. Thermal Radiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the 6 [9 L2 c/ [6 C/ ^6 c- S# dfireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. + A# q9 H& t# O1 C5 C6 BThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, 9 G L* ` y, m% j" b- r* vemitted by the nuclear weapon residue by virtue of its extremely high $ Q/ F& l4 h% k1 Ctemperature; it also is referred to as the primary thermal radiation. It is the 4 {# g7 I: K3 K4 Q0 [ Jabsorption of this radiation by the ambient medium, accompanied by an increase in temperature, which results in the formation of the fireball (or other heated region) which then emits thermal radiation. (See X-Rays.) MDA GLOSSARY, VER. 4.0 T 299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; # E% u/ O" d" R4 I" g( cit 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 7 [1 V* _ B3 x* O+ M5 i. D+ Bexosphere and most or all of the ionosphere. 9 K4 g6 g0 P4 a) }8 c1 tThreat & Z- O' x9 z; ~8 ^Characterization $ U: O& ]5 V! m, q3 w9 vAn assessment of the nature, magnitude and intent of an attack in progress. ( W3 A* t3 m, F' CThreat Corridor 7 d: w# a6 w* R5 ^6 f* y$ |0 W) R(Threat Tube) A tube containing all the objects originating from launch sites and aimed at targets whose spacing is close enough to permit the tube around the object trajectories to be represented by a single trajectory in battle management 8 j/ X6 L3 E: {computation. . f- |( U: m7 Z) Y6 V: i! tThreat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive systems and architectures. Threshold Performance capability or characteristic level in terms of a minimum acceptable value (threshold) required to satisfy the mission need and a performance 7 Q4 K5 j; L8 }8 g! Gobjective. & u6 B* a% t$ u3 cThreshold # d, @2 l& I3 d7 fDefense & n: H7 u0 \* z1 c; r( y: cA defense strategy that concedes that the target can be destroyed at a price 3 M5 I% J, Y/ F7 @% Dthat is not prohibitive, but the presence of the defense is thought to require the * K! b/ r$ s8 t+ i# z) ]8 n- Soffense to mount a relatively large and complex attack. X- R( H) D9 z9 F7 _Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. $ i: ^ f. c( ~3 o: X; QThrusted Replicas (TREPS) Conical decoys equipped with a miniature rocket device. Generally used to , c( o+ R9 N" t1 ~/ ?% T3 mchange the decoy’s optical signature to resemble that of an RV in the reentry 1 X6 d; s5 @' T7 e" h. z' X2 Rphase. TI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. 1 o0 c) K2 s+ [5 X& H7 R- @& A- t# aTIBS (1) Theater Information Broadcast Service. 3 I* K6 S4 _$ i. H(2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. ( F' ]; H2 m0 h+ QTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. , M8 ]+ Y, T) j: b' K* K2 D/ ETIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. ; i2 d! Z3 d# r7 P# |1 B7 V3 H6 ?5 ?9 tTier An integrated set of SDS elements that address a particular phase of the threat (e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. 8 u9 n- R9 Z. E( O6 r K2 uTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. MDA GLOSSARY, VER. 4.0 T 300 5 X& v/ T. T( [2 `9 Z: qTime-Phased + {/ x" v, d% s1 o. `" f& L$ YForce and Deployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual - ^+ y. d/ I/ L3 \& g. ^units required to support the operation plan and indicates origin and ports of debarkation or ocean area. ; B/ A/ b, | VTime of Flight (Max) . k& k# ^% r5 t! _The maximum time for a booster or vehicle to perform its function from time of % U/ e: q# Q. }! M9 Qlaunch. Time on Station The time the sensor is in its operating position. Time Sensitive 0 A K! F- d; w; h4 F1 ZTargets 0 Z3 }* l7 b! nThose target requiring immediate response because they pose (or will soon pose) a clear and present danger to friendly forces or are highly lucrative, fleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. TIMS Training Integration Management System (USAF term). , ]( H3 L/ C; [' v! T7 M2 QTIN Theater Intelligence Networks. 3 G; m# s* [ e! o# d2 o7 bTIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety : K0 y; ?& C S0 J+ l+ N( H( BTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. TIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) 0 w$ _$ {" V' c) P. XTL Team Leader. TLA Time Line Analysis. + s( R" b! e: o6 j9 ~TLAM Theater land Attack Missile. / x2 ~& F7 T+ J `: dTLAM/D TLAN [with submunition] Dispenser (Navy term). TLDD Top Level Design Document. 2 h& d9 O \1 A7 o nTLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army # l% h- ?" c; T9 m1 v9 Yterm). 2 `0 w7 \1 L* D6 c/ d0 uTMCC Test Monitor and Control Center. , f l' C+ a. B1 D9 O) j; ETMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T / _7 R; c$ Q! i( y301 TMD C 3 ! L, q4 W" k0 J7 l# K! ZI 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). - s5 T8 ? z- y! H' STMD IA Theater Missile Interoperability Architecture. * _5 S/ z; S! a% O' CTMD ITP TMD Integrated Test Plan. & A9 q- ^ k0 a5 L: O' F" A+ g- @TMDAS Theater Missile Defense Architecture Study. 4 w& E2 Z& k: y3 {7 cTMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). * q; B- B. |/ h5 v0 n& ]* eTMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. ; e5 f: p$ M" N7 D. oTMMM TOMAHAWK Multi-Mission Missile. TMP Technical Manual Plan (ILS term). TMPCU Tomahawk Theater Mission Planning Center Upgrade. TN (1) Terrestrial Network (C2E term). (2) Thermonuclear. ! `3 f$ j7 ~* S/ {; k* w$ ^/ STNF Theater Nuclear Forces [Treaty term]. 6 L! L7 E, a, wTNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. 3 L+ ~5 y. l; C6 b5 S* vTOAM Tactical Air Operations Module. TOC Tactical Operations Center. ' ?, B! ?. P: _TOE Table of Organization and Equipment. TOF Time of Flight. TOI Track of Interest. TOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal conditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T : O7 ~* \; g7 s( M0 c: \302 4 @; j& e/ J9 L" ~4 E; }9 {TOMD Task Radar Management Details. TOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. 0 ~7 o* E( {$ o: L6 ~1 w) tTOP Task Order Plan. 1 V P( Y/ T% J# ` w; J$ S! HTop-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 8 G8 Y* {; t" u& aDesign The process of designing a system by identifying its major components, ) e9 `. Y) O, `7 cdecomposing them into their lower level components, and iterating until the desired level of detail is achieved. Top-Down Testing The process of checking out hierarchically organized programs, progressively, from top to bottom, using simulation of lower level components. TOPAZ A project to demonstrate the transfer of Russian thermionic space nuclear power - o$ I; J3 [# Q- r8 Ctechnology to U.S. BMD applications. 5 H/ ]; a$ G/ \- d8 e: l6 z. g2 kTOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation . G1 q- P+ I7 V9 Y6 i' s' iAuthority (TOA) 8 k; q! U( ~5 |% b+ ]A DoD financial term, which expresses the value of the direct program for a given fiscal year. $ ~3 Y! D2 g$ I4 ] p' b5 ITotal Quality Management (TQM) 0 [. d: O6 W' L- H- y: tA management philosophy committed to a focus on continuous improvement to $ r: D2 E* F d( l+ ?: P$ Pproduct and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System * t9 _- P2 p2 k$ [( ?. E. xTOVS TRIOS Operational Vertical Sounder. $ B6 b; O0 `1 q% v) J# E. b2 D* XToxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. * u/ z8 m& Z4 d- x U/ m+ JTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. TPD Mobile Tactical Radar (US). 1 U2 E" f/ O( cTPDR Total Processing Data Rate (TelComm/Computer term). 2 i. h% d$ S, O/ t$ |+ I TMDA GLOSSARY, VER. 4.0 T + U) O* G$ H* k" g9 V303 TPEC THAAD Performance Evaluation Center. $ p1 ~ X9 A) T3 z9 U9 B8 A6 o2 LTPEM Technology Program Element Manager (SDIO/MDA term). r2 I* [5 W* I* n6 a( yTPFDD Time-Phased Force Deployment Data. 9 ~9 }0 F& H+ F* z9 DTPFDDL Time-Phased Force Deployment Data List. ( p* i) v: T% wTPFDL Time-Phased Force Deployment List. / Y( D% h7 b& D* w* MTPM Technical Performance Measurement. TPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office / K/ D: r+ s6 R9 CTPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target Performance Report. TPS Thermal Protection System. TPT Theater Planning Tool. TPWG Test Planning Working Group. (U.S. Air Force) 0 z. b6 W8 Y! M' g5 i. M8 \TQM Total Quality Management. 9 P, ?) W) S! C/ d, K. G: W/ HTraceability (1) The characteristic of software systems or designs or architectures or ) w! @" n! \: W( Y% Xdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and constraints. 0 v: i. d) A3 B R& R/ `8 Q$ [9 c(2) The degree to which a relationship can be established between two or more products having a predecessor-successor or master-subordinate + _' g' I9 K C1 J }/ o0 b9 wrelationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. 2 L1 M+ ^% M! e+ B- g8 z/ \/ j9 z& g" }(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 earth. Track Assessment The Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. Track, Birth to Death ' X) q4 ~8 g* y) e0 X) q5 X' `The maintenance of an associated track through all phases of flight (i.e., boost to reentry). ' K4 P! t/ f& C2 I2 r% |Track Correlation The combining of track information for identification purposes, using all available / ^4 i4 ~5 \! fdata. / ~+ K5 [) Z8 C, @* G7 YTrack Extension This term usually applies to improvements in track estimates by use of new data. $ j, N: M8 `2 ~) h7 WIt is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). ' H& `' S, W4 g6 ?) sMDA GLOSSARY, VER. 4.0 T # Y" I- Y1 k9 m: u5 a304 9 h1 H3 h2 C( Y, }Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS measurements with irradiances with confidence of association; or some subset of 2 Q& B/ J9 w3 E, E2 P2 Z/ v/ ^the above. ( A* K; y+ Y6 p/ o! |/ zTrack File-Track 0 \8 a+ b* h8 n1 Q+ ?' o6 CHistory A set of individual track reports on a particular object, which taken together / @2 E) |; s& a* x* m6 G+ Jproduce useful approximation of that object's future position in space. P* z6 e1 ?" |1 ]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. 3 l) @; t/ A: w6 }5 L: w$ I6 JTracking The act of generating and maintaining a time history of an object's position and any other features of interest. 1 q8 E$ F% n( w0 H' m( kTracking and . e. @% Q5 f- w4 N2 b% y' ~Pointing 9 O6 j/ u' d9 q( z' t8 QOnce a target is detected, it must be followed or “tracked”. When the target is successfully tracked, a weapon is “pointed” at the target. Tracking and pointing 2 e+ X2 P" y* J5 Ware frequently integrated operations. Tracking Range (Max) 2 ?6 D, { E2 R6 v$ XThe maximum line of sight distance at which a sensor can maintain track of an object. 0 Z% }/ o/ h9 N1 T" C* T# S7 g* STrack Initiation The formation of the first or initial estimate for a sensor system of the state vector $ ]- o& J, ^3 s2 F/ {of an object. The process typically requires observation from a number of 5 ~$ {; {" \- D0 K9 dframes. Track Production Area , l2 J+ v& ]2 t* A/ |An area in which tracks are produced by one radar station. 6 y+ q, P' q0 Q7 j6 q( P7 {Track Symbology Symbols used to display tracks on a data console or other display device. 4 V# K: {0 ^; ^$ e9 ]Track Telling The process of communicating air surveillance and tactical data information between command and control systems or between facilities within the systems. Telling may be classified into the following types: back tell; cross tell; forward tell; * D1 d1 o" L* {$ @& L3 Y: \2 elateral tell; overlap tell; and relateral tell. % |' u8 Q8 z$ Q* kTRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability Maximum The maximum number of objects per unit time which the sensor system can * v3 n3 d( J" o$ U# gmaintain track files. r- G; v2 N/ N5 N" X+ |2 {Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high - j) c& h1 T+ Rendoatmosphere. 2 ~: C% u5 w4 ~7 h1 w2 e- FTrain Threat geometry with objects placed in a line (string) along the velocity vector of reentry. Trajectory The curve described by an object moving through space. 1 j1 X8 ~& g4 D$ _Trajectory Histories ' J% m% I( p, y2 g/ wTrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). * c% Y- R9 w% B9 \ A/ j4 DTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. : f- Y$ _: c4 OMDA GLOSSARY, VER. 4.0 T 305 0 L/ S8 R* j; P; vTRANSCOM [U.S.] Transportation Command, Scott AFB, IL. TRANSEC Transmission Security. Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to 7 n' ^3 b; j& K/ r! yProduction A risk reduction process during which the program shifts (passes) from 6 X- G. E2 v( G" L& L4 V. fdevelopment to production. It is not an exact point, but is described as a . v- K: W& K$ a# D4 a- @process consisting of disciplined engineering and logistics management to * B8 N$ i- d6 P/ Q5 f8 N% }+ i8 sensure the system is ready for manufacture. (See DoD 4245.7-M.) Transmission ; G/ J9 o+ e8 R" \Security (TRANSEC) - w" K: s, e# m( d8 P; EThat 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 8 V0 |% I) u- `0 H r! E* } a: rencountered when passing from subsonic to supersonic speeds and vice versa. ( ^9 Q* j( N3 i( n5 O* uTransponder 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 : A( V4 Q* }' N* x& ^1 imechanisms to be circumvented. Traveling Wave Tube (TWT) 0 i- S- f. U9 u5 | P$ mAn electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in 1 c2 j& U& s" M& Msynchronism 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. Traverse (1) To turn a weapon to the right or left on its mount. " w6 c9 a) E6 Z(2) A method of surveying in which lengths and directions of lines between . R) W3 x! y! p* S# V# X- Jpoints on the earth are obtained by or from field measurements, and used in determining positions of the points. * g0 |( w* b1 Y( Q( qTraverse Level That vertical displacement above low-level air defense systems, expressed both 4 D7 v" U, [+ Y0 E8 X5 s) y8 ?as a height and altitude, at which aircraft can cross the area. TRB Tactical Review Board. TRD Technical Requirements Document. * _- P) u( |6 xTRE Tactical Receive Equipment. TREA Transmit/Receive Element Array (THAAD). ( W- [+ u$ O. S$ Z7 r- }# VTREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. ; u6 _; P, P6 F( u6 E4 M5 S" F. kMDA GLOSSARY, VER. 4.0 T , ?8 F$ H2 [: l; [# W306 TRG Threat Reference Guide. , V# u" O1 s& G% r0 u5 r) \* c9 _TRI-TAC Tri-Service Tactical Digital Communications System. TRIDENT Class of US ballistic missile submarines (USN term). & O+ ?! J( {+ n: [2 U1 V r+ s' H8 FTRIDENT I (C-4) US SLBM (USN term). 3 a* L) w; b; J, ?1 `; d0 YTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. 5 |+ u: }0 `* s) O+ STRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. $ [/ F; b( T: I9 @Trojan Horse A computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate 1 O9 ^3 Y4 ?3 }4 g, J9 e7 jauthorizations of the invoking process to the detriment of security or mission 7 o' j3 F/ Y/ c& nperformance. 0 k1 G1 o1 W" i5 |& |TROPO Tropospheric Scatter. 4 V1 j+ ^1 }' c5 t$ Y+ i+ hTropopause The imaginary boundary layer dividing the stratosphere from the lower part of the ; C0 d8 U" J+ B. V3 Ratmosphere, the troposphere. The tropopause normally occurs at an altitude of 3 a8 {& E G6 O! @; labout 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the |* ?/ m9 H. ^ \( ^5 y5 d& ~( t. Stropics. (See Stratosphere, Troposphere.) Troposphere The region of the atmosphere, immediately above the earth's surface and up to * |8 x2 D( X0 a* J0 s$ s4 p! k* rthe tropopause, in which the temperature falls fairly regularly with increasing ' ?. `7 X. L7 Q8 ^4 \9 R/ _altitude, clouds form, convection is active, and mixing is continuous and more or $ d. y& e3 T# C* Y4 lless complete. Tropospheric " y6 V& r& j0 Z/ _) Q- H' M: ?! \Scatter The 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. , j; {8 x: G& }6 d# D9 z2 |, a(3) Technology Readiness Program (pre-acquisition program status). (4) Technical Requirements Package. + U! A$ m+ H) s/ B6 b$ LTRPC Technology Readiness Planning Committee. 3 }2 f3 q. J& mTRR Test Readiness Review. ; t% X1 n( b) f7 O/ d% J% e" QTrusted Computer * G5 _2 g$ r6 j# h" a+ ^# ?0 [System/Software 3 W1 a5 a; }+ I$ H- fA system or its software that employs sufficient hardware and software integrity - E% n* U1 l" Y" t& Rmeasures 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 - E* ^ U9 e+ N) TTrusted Computing Base. This mechanism can only be activated by the person of the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. 6 ?8 n5 _( `& T$ { ~3 bTS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T 307 TSA Technology Security Analysis. TSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). , u, b8 C* r/ z! O& _1 tTSD Tactical Surveillance Demonstration. 6 q& f5 ^* u+ e; _% G2 o7 ~8 wTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. - @% }2 W, }# u. i) n4 X, E, yTsIAM Moscow’s Central Institute of Aviation Motors. / ~8 z2 E- d; q( A) q/ uTSM TRADOC System Manager. TSMA Theater of Strategic Military Action. TSP Target Support Plan. TSPI Time, Space, Position Information. t Z) R6 ]6 \. L8 N W% OTSR Target System Requirements.

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TSRD Target System Requirements Document. 2 ?4 f, }. i6 L: O$ A% QTSS Terminal Surveillance Sensor. TSSAM Tri-Service Standoff Attack Missile. TSWG Target Signature Working Group. 0 o6 Z' h1 ^. {$ a$ H0 T/ zTT Total Time. TT&C Telemetry, Tracking and Command. 7 P0 P& W* I1 ^# zTT&E Technical Test and Evaluation (Army). ' F8 B) m3 X8 H8 t: }$ `TTA Total Time Accounting. 9 c: N6 s& C. m/ t, S3 u: sTTBM Terminal Tier Battle Manager. / n# J. _* A' r$ s& lTTBT Threshold Test Ban Treaty. , k+ D% S1 [# z; O! WTTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, which have significant potential for improving testing. 7 v |! K+ Y6 {6 p5 N- E' NTTEL Tools and Test Equipment List (ILS term). `! D2 B- H" `0 C, Y+ NTTL Transistor-to-Transistor Logic. TTP Tactics, Techniques, and Procedures. 9 i% s8 x' r8 _) x5 r. r9 u' g" oTTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. MDA GLOSSARY, VER. 4.0 T 1 {* p; Z+ a4 `$ G7 v308 4 J" }* Q) @; e! g, s- S4 NTTV Technology Test Vehicle. 4 i, \1 q! o/ Z, p' h' @4 N+ iTTY Teletype. TUG TRACE User Group. TV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. TVE Technology Validation Experiment. " R: o: t8 s3 R5 f. WTVM Track-via-Missile. 7 E8 E; l6 b7 F8 S0 ~. o: TTVV Technology Validation Experiment. , f/ a! |- M c5 o" k0 `TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. / c& P/ j; ~8 @+ @( D8 \' fTW/SD Tactical Warning and Space Defense. TWG Technical Working Group. # P4 a* z3 ~+ j/ [2 cTWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. 6 ~1 U+ T- Y& W1 ZTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). 9 A8 l1 P$ b2 y8 r; y. j1 x! GTY Then Year (PPBS term). TY$M Then Year Dollars Millions. 5 N9 g0 U! h: X0 ^Type A - System Specification States all necessary requirements in terms of performance, including test " e! e. x7 w7 N8 `provisions to assure that all requirements are achieved. Essential physical |7 N- I& s, _' \* L, |constraints are included. Type A specifications state the technical and mission requirements of the system as an entity. Type B - ' O: ^: o0 _) k4 @$ z$ sDevelopment 0 K0 O6 P6 W' `; CSpecification 4 ^& d0 [ b) A6 s& pStates all necessary requirements in terms of performance. Essential physical 4 K; d. b; s8 E& yconstraints are included. Type B specifications state requirements for the 3 M+ R: z5 M. p& A4 J$ k% q' Kdevelopment of items other than systems. They specify all of the required item 0 Z; f+ i2 m( A/ O$ q' S pfunctional characteristics and the tests required to demonstrate achievement of 2 {% F; B. v4 c+ R4 f e% s2 ^" J9 d& ethose characteristics. 3 H2 F+ l2 l+ G8 Z4 mType C - Product 2 H8 O2 y2 @' ^1 e- t/ YSpecification 9 ]4 h- t% G0 D( Z- {Product specifications are applicable to any item below the system level, and 1 o! o3 b: k$ y2 Q5 ~- U, Nmay be oriented toward procurement of a product through specification of 4 `, I4 q! O4 B# _primarily function (performance) requirements or fabrication (detailed design) requirements. Type C specifications intended to be used for the procurement of 6 E' F2 E, c7 ]2 ]& |' ~9 ditems including computer programs. & N L2 J' t4 ~0 B0 ITyphoon Class of Soviet ballistic missile submarines. & d0 g" D' U9 X' r3 kTyping The act of recognizing objects by measuring a set of observables, computing a set of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). " @, K5 o$ L; `; G5 V4 z3 D1 hMDA GLOSSARY, VER. 4.0 U 309 / q2 _5 U$ A b3 X8 u) YU Uranium. U&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. U.S. (US) United States. 0 x+ z! t- A7 |3 UU.S. West U.S. West Incorporated. 3 K& N- P" ?9 yU.S.S.R. Union of Soviet Socialist Republics. * l3 ^, r: n- t/ l pUA User Assessment (NMD BMC3 term). UAE United Arab Emirates. " v, @3 o# M( R ^5 y: \UAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. / o, A v9 l: }9 I+ JUCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). ( a- p2 T6 v/ C) t9 Y+ e$ U, tUCP Unified Command Plan. " ~) z$ a" _" |% KUD/ASD United Defense/Armaments Systems Division. 0 W/ ?/ M. ]4 f4 E4 t& A- I2 XUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating ( k Q( i% ~8 n2 v, ]9 H( {& Zand coordinating program requirements for testing MRTFB ranges, as well as the $ l! |& U! [, k" dcapabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the Program Introduction (PI) (also called the Program Introduction Document (PID)), 9 |# G6 W2 Z' v! m; U. E2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) 3 g. Q0 ? j* A" s) e% j' OOperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the 4 S% m Q6 y B7 e0 p7 P `$ BOperations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. * v) Q$ M' ?6 L; x/ @) NUEME Unified Electro-Magnetic Effects. 2 v7 O: B0 N3 l8 \& |1 h5 yUEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. # E ]$ g9 V3 @% GUF6 Uranium hexafluoride. MDA GLOSSARY, VER. 4.0 U 310 UFG User Focus Group. ( b3 D) U$ m- h; v8 ?% KUFO UHF Follow-On [Satellite Communications System]. / x" e9 h( m: C/ zUFP Unit Flyaway Price. 3 p7 t% o6 {7 b* j3 L EUGF Underground Facility. 3 C6 c1 J- z7 j! O! S1 @UGS Unattended Ground Sensors. 7 I+ i: K+ C7 I' S- p, U8 b4 R. EUGT Under Ground Test. UHF Ultra High Frequency. 0 Y8 I- X, |# E5 |UIC Unit Identification Code. UIN User Interaction Node. UKAS (1) UK Architecture Study (2) UK Associate Studies. UKEADTB UK Extended Air Defense Test Bed. 8 H+ G( f+ x$ J7 a$ O% @: CUKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ( A0 l, X; S# w9 Q# X: JULSA Ultra Low Sidebobe Antenna. 8 E+ Q; S# _% r8 T1 u% A7 Q' C1 tULTDS Unit Level Tactical Data Switch (SINCGARS term). ! S1 `5 C5 B# K5 o. b& r8 zUltraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). UMD Unit Manning Document. UMMIPS Uniform Material Movement and Issue Priority System (ILS term). 7 ~3 W: b8 R1 R6 v9 e L! FUNAAF Unified Action Armed Forces. UNC United Nations Command. 4 v( D9 U' f! H2 }$ {$ aUnconventional . G/ [, M7 g- Q# X. V9 A. PWarfare + `' V8 ^5 H4 u! S3 a0 DA broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare 8 I' [: F' j1 ~9 Xincludes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, 3 d6 z* f/ P+ Q6 ycovert, or clandestine nature. Unified Action + q# ]1 q; O1 m* ]1 NArmed Forces A publication setting forth the principles, doctrines, and functions governing the , S8 z! [ }. e: r5 {activities and performance of the Armed Forces of the United States when two or more Services or elements thereof are acting together. 4 M: S( K7 B: X+ ^" g: Q) ]Unified Command A command with a broad continuing mission under a single commander and $ o5 S2 J7 m3 S: `4 d- g7 ~composed of significant assigned components of two or more Services, and 4 n: S" D+ N- x6 i0 Uwhich is established and so designated by the President, through the Secretary of Defense with the advice and assistance of the Joint Chiefs of Staff. 0 c' z' q: Y5 K# T/ k Y; pMDA GLOSSARY, VER. 4.0 U ( M7 M9 c; x5 w0 r. }6 O311 UNISYS UNISYS Corporation. 2 J b B2 c6 s; O$ C) x F5 J# s+ LUnited States Army 0 i& I4 Z8 G4 n# \2 \Space Command 9 L/ H( N/ t9 {: F( F(USARSPACE) 7 \7 s. H; n4 @' Q# L0 }: }" eThe Army component command of USSPACECOM. Responsible for the Army elements of the SDS system. Located in Colorado Springs, CO. 7 ~8 m0 L+ q+ t; V: cUnited States . ?, t8 `8 I1 XSpace Command $ `8 I: Y' J* |% T5 b+ G8 {(USSPACECOM) . B# x6 m/ K uThe unified command responsible for planning and conducting ballistic missile , F* A6 H; \, A# tdefense. Located in Colorado Springs, CO. United States & U3 p; ]% ? U# z% U+ D1 a4 dStrategic Command (USSTRATCOM) The DoD unified command responsible for carrying out directed nuclear and nonnuclear strategic air, intercontinental ballistic missile, and sea-launched ballistic missile offensive combat strikes. Located at Offutt AFB, NE. 9 [+ j3 V2 j/ K) [" ]# i6 y% {- A; hUnited States Transportation Command 9 l- }! T- T% \$ q; d) p/ l(USTRANSCOM) 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 ( ]6 ^7 u* Y+ y; i( k; iwar. It is also responsible for providing airlift, sealift, surface transport, and terminal services, and commercial air, land, and sea transportation, including as * _4 |# |. L! yneeded 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 7 _. ^+ h) Z/ q, SAFB, IL.

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Unk Unknown. q' g7 j( Y5 Y& V/ P$ o: {0 bUnresolved Objects . G8 i5 s: p8 \# ^8 }$ zObjects so closely spaced with respect to the sensor focal plane as to be ) t) X) B! h$ |( [5 C2 L0 mindistinguishable from a single object. ; D0 s& a" o# K; W3 E3 Q8 uUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). UOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. / P9 Q q; ]9 B0 ?0 r" x6 }UQT Unit Qualification Training (ILS term). 5 {; f/ m8 b3 l& z1 i* z/ h- bURIP University Research Initiative Support Program. 6 ]) [ _0 S% v- m1 ~& CURL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. 3 e w, k$ L3 f- Y k% ?USA (1) United States Army. (2) Under Secretary of the Army. USAADASCH U.S. Army Air Defense Artillery School. 0 z* i" Y+ S! {0 |! J: YUSAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U 312 1 {3 X3 a" }: J4 k4 H& i- RUSACE United States Army Corps of Engineers. : N b: P/ H- @- J% y' Y% fUSACOM United States Atlantic Command, Norfolk, VA. * s- g. j% b/ _& P# W# q0 c, K( J% XUSAF United States Air Force. ' c% {( |4 l- V/ R; XUSAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. 6 p2 `- W8 z7 u7 t- yUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF ' n9 V! C5 q7 ^Systems Command /SSD. USAF/OTEC U.S. Air Force Operational Test and Evaluation Center. USAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. USAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. # O( U: p7 f2 VUSAFE U.S. Air Forces in Europe. ( k2 R. k: G9 u$ D% N. }0 J8 fUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. : W1 z5 |4 A7 z5 x3 v! ?" T8 YUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. + j. f3 K& s$ ~" [USAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. " \+ E" d, N5 n: S% N4 a0 HUSASDC U.S. Army Strategic Defense Command (<1Oct 92). USASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL ( n5 r) w; L- E. Y/ V1 _# kUSATECOM U.S. Army Test and Evaluation Command. USATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. i) S/ R5 {. v& u3 {4 G* pUSC U.S. Code. 8 W) X5 z: o- u0 Y. h) EUSCENTAF U.S. Central Command Air Forces. MDA GLOSSARY, VER. 4.0 U 4 {8 Y5 l8 \* z4 Z313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. 8 t; T, G1 p4 v R2 Z; v( ^. RUSCINCCENT Commander in Chief, U.S. Central Command. + R! ^" x4 n- I0 X8 C( n! ], Q* FUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. $ {6 z* e" K2 M0 U8 @) m( G* mUSCINCPAC Commander-in-Chief, U.S. Pacific Command. 0 l1 i0 h% a* ]2 z5 t3 H( FUSCINCSPACE Commander-in-Chief, U.S. Space Command. 2 E/ E( X% r3 Q! _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.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. 2 p( T# Q& R0 p9 ^USD(P) Under Secretary of Defense for Policy. % I8 l' K, V& U2 } O6 XUSDA United States Department of Agriculture. USDAO U.S. Defense Attaché Office. ; A, Y3 ? ^) x/ C5 iUSDELMC U.S. Delegation to the NATO Military Committee. 7 f: l2 }9 |+ S' G, o$ r hUSDR&E Under Secretary of Defense for Research and Engineering. User Friendly Primarily a term used in automatic data processing (ADP); it connotes a machine V7 ^$ {0 `2 K+ O' L: x(hardware) or program (software) that is compatible with a person's ability to operate it successfully and easily. User Operational Evaluation System (UOES) Prototypical system developed and tested as part of the early phases of the 5 a2 b7 j8 V+ s& w e3 O% ^9 \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 ! p& d/ [: a/ p! G1 O+ D* xnormal acquisition cycle. ' K) r# ~( l( H/ K3 D4 R7 oUSEUCOM United States European Command, Stuttgart-Vaihingen, Germany. 2 x) s" ?) J6 k# A6 ]USFJ U.S. Forces Japan. USFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. USG U.S. Government. L: _& [+ Q/ Y6 IUSIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 314 USLANTCOM United States Atlantic Command (Now see USACOM). 5 y$ M3 J0 A8 x* C: F/ b4 WUSLANTFLT U.S. Atlantic Fleet. USMAR- ! g8 k; G, N( o( VFORCENT U.S. Marine Component, U.S. Central Command. # s- |. n& P+ H+ {8 N& gUSMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 7 _# ~4 S1 z7 J9 J; i9 I" `USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. 8 I; Z' ^' O+ m4 T1 H3 p! qUSMCR United States Marine Corps Reserve. 1 c3 C$ b# k2 U/ v; s+ ~USMILREP U.S. Military Representative. USN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. USNAVEUR U.S. Naval Forces, U.S. European Command. USNIP U.S. Naval Institute Proceedings. % I! O5 e( R( H# `# d6 s' M3 o) ?1 |USNO U.S. Naval Observatory. USNPGS U.S. Naval Post-Graduate School. , K, e0 v2 I2 }* VUSPACAF U.S. Air Forces, U.S. Pacific Command. & I2 v; a5 d9 j3 c M, X0 PUSPACFLT US Pacific Fleet. ' @1 `6 X* q& R. ?/ |USPACOM United States Pacific Command, Pearl Harbor, HI. 0 d# ^" x7 H+ m9 K8 XUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. 0 Q8 U d8 m' Z9 |' lUSSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. - y! _# N# O/ V8 a2 l% eUSSPACECOM See United States Space Command. 5 d9 g8 [6 D7 _& C. [" C; gUSSS United States Secret Service. USSTRATCOM See United States Strategic Command. & i$ q1 c* v. h- @ ^2 vUSTA United States Telephone Association. $ N+ M4 h/ l! X& A: [% OUSTRANSCOM See United States Transportation Command. UT Universal Time. & X* y% `- I: m3 {( dUTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 315 2 b% v% @+ w# F% k6 C+ P4 |UTM Universal Transverse Mercator. - Q" |6 ?4 f4 l3 {& P a' Y! FUTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). $ B- o4 L" P/ g" q6 QUV Ultraviolet. UV Electro- Optics Technologies/techniques employed by optical sensors in the wavelength ; t# L" u& T+ L8 d( Yspectrum shorter than visible (e.g., less than 4,000 A). UVPI Ultraviolet Plume Instrument. 4 r4 a/ t6 t: u! ZUW Unconventional Warfare. ( ?1 W$ J7 j7 D* v. @MDA GLOSSARY, VER. 4.0 V ' X' g5 g. O) g& [316 , e6 T8 d; Y1 p1 D5 W! m8 kV Volt. ; v$ Q% b [, A0 i& n; iV&H Vulnerability and Hardening. 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. Validation Confirmation that the processes and outputs from a test resource parallel real 8 a) G# p7 U5 r: `: M- R* h( Qworld processes and are realistically sensitive to change in the environment, # S! L$ b! h! Ftactical situation, system design, tactics, and threat. 4 O/ T5 S; f* R' G+ h9 YVAMOSC Visibility and Management of O&S Costs. 7 E3 W% ~3 s, g* u* l$ O# UVAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases 4 P. I! q ?; ]+ t, M" Z/ b( D2 ?) x$ @with the distance from ground zero; or, in damage assessment, a mathematical factor introduced to average the effects of orientation, minor shielding, and uncertainty of target response to the effects considered. VBO Vertical Burn-Out (velocity). $ U3 B" Z0 b5 V4 e7 FVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. VCS Voice Communications System. VDC Volts Direct Current. VDD Version Description Document. - r! q# x' P f0 Q' IVDU Visual Display Unit. VE Value Engineering. VECP Value Engineering Change Proposal. % T! Z/ P& v* |# \( }" Y! z) }+ W5 I5 T; nVerification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, ( b. L) Q, S' b+ \. Ccalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end ) t) |4 o+ a" |6 uof the development process to determine whether it satisfies specified % R3 k' @# y% A3 T/ M" Krequirements. * L; O( o- a/ k, F1 MVESA Video Electronics Standards Association. 7 ~* Y7 I4 z, ~VFR Visual Flight Rules. 6 }8 q, U7 n6 \# aVGA Video Graphics Array (Telecomm/Computer term). 0 c( x# S' }2 i% t' ]5 F6 I* ?VHF Very High Frequency. " q c6 s$ \1 z5 ?* }% ~* _& S q: DVHSIC Very High Speed Integrated Circuit. 3 n6 ^4 X, ~ Q7 k) UMDA GLOSSARY, VER. 4.0 V 7 g! G. @/ i, N8 Q4 e$ Y317 VIDS Vehicle Integrated Defense Software (USA term). + x7 z" k8 k/ W* Q; a) GVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D 6 g- D+ |+ |0 ~0 w( SExperiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional " w3 i/ X9 C& K9 L. Fcircuitry and commercial components. Project also demonstrates VIRGIL, a " h; F. }$ O8 U, Ngimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and ( Y2 j7 M- U" W& z$ D' R, oprecision-tracked with the ANTE processor. VIM Vibration Isolation Module. * n4 z- S: Z3 S) zVINSON Encrypted Ultra High Frequency Communications System. # v/ Y' `+ [$ a4 n; O }- pVIS Visible. VIS/UV Visible/Ultraviolet. 1 i' O: f( u- C5 |Visibility Range (or Visibility) ! `7 u& X4 i3 S' [5 e1 N+ tThe horizontal distance (in kilometers or miles) at which a large dark object can . }% f5 [6 r, {" X8 m( ajust be seen against the horizon’s sky in daylight. The visibility is related to the clarity of the atmosphere ranging from 170 miles (280 kilometers) for an exceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze or fog. The visibility on an average clear day is taken to be 12 miles (19 . H a5 q$ W! \2 c$ v2 kkilometers). ) h$ u% x5 d2 L$ x! O. `Visible Electro- Optics ! O) |; {. Q G9 l6 KTechnologies/techniques employed by optical sensors in the visible portion of the wavelength spectrum. & e. A9 \" B# ^) }! h* ZVLAR Vertical Launch and Recovery (UAV JPO term). 7 }4 c0 o5 [; k9 _# mVLF Very Low Frequency. 2 g; [- w5 M; M) I/ p& wVLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. z+ u1 i6 o" c) V2 T" {3 Z) D: O0 OVLWIR Very Long Wavelength Infrared. * k2 \3 q" Q. A; Q0 {& R( c2 vVME Versa Modular European [standards]. & I" i2 S4 I6 J3 q, m9 F* c8 \VMF Variable Message Format (Telecomm term). $ G0 h% O$ ~, \5 x/ I* kVOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. 8 t3 L/ W9 v. ` p ^% H6 K# P* VVTC Video Teleconference. , S0 |; N6 ?& K0 R9 n6 FVTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. $ u; \9 v" {2 l5 c! O* e6 O9 u8 GVUE Visible Light/Ultraviolet Experiment. - f- W) K* ~: b6 y% D! eMDA GLOSSARY, VER. 4.0 V 318 ! f! O! `3 I1 o* N: s6 KVulcan UK bomber. / g2 ~6 q6 E5 S. u; @5 YVV&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 $ g; i5 ~7 Y% z+ n: k& p319 W/ With. w/o Without. W/TD Warning/Threat Detection. . m! @- e9 @7 ^3 g' K) EWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. ) ]1 N6 J% u" P8 Z$ A2 H9 |" }WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area 8 k( O& ]9 `7 C* p/ FMunition. (3) Wide Area Mine. (4) Wide Area Missile. WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. " m8 ] C5 f8 L0 JWar Game A simulation, by whatever means, of a military operation involving two or more opposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. 2 U* {: H, l9 `2 P. p" NWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the # f' Q+ c, ?4 e& I7 u& GJNTF for use in CONOPS validation, missile defense program design verification, validation and accreditation, and support CinC/Allied wargames and 2 U6 w: ], H# k2 n: m. f Nassessments. , L: d6 y+ o* X/ T2 FWarhead A weapon, usually thermonuclear, contained as the payload of a missile. " V7 ^1 G: r0 b# Q0 i! M3 GWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, airframe, motor, or guidance section. % `' o$ m0 ~( R+ q5 Y. L; }Warhead Section A completely assembled warhead including appropriate skin sections and related components. 7 a% C! [' K% o' L% DWARM Wartime Reserve Modes. & Q; w; P: S* ?" U9 tWarning of Attack A warning to national policymakers that an adversary is not only preparing its 2 ?& O, _/ t4 _- x( h+ _" Varmed forces for war, but intends to launch an attack in the near future. ' ~( c" M! l. J/ yWarning Order A preliminary notice of an order or action that is to follow. - X$ m! Z4 ]+ D& R- o T, S IWARSIM Warfighter Simulation (US Army term). WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) & _6 {5 Y( k4 ^' @* [7 ACharacteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will # i9 p8 l4 ]" D6 ycontribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if 5 i" w: l" J0 P( m5 B# pknown in advance. Wartime reserve modes are deliberately held in reserve for wartime or emergency use and seldom, if ever, applied or intercepted prior to such use. WAS Wide Area Sensor. WASP Wide-body Airborne Surveillance Platform. A modified DC-10. MDA GLOSSARY, VER. 4.0 W 320 : E# D/ q5 `( C' M! }2 R$ fWASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective ) Z- R' A- E% c! Ein contributing to the defeat of the offense. # c0 v+ }. ]4 t" z @Watch Condition ! N- l& ]3 Y( Y% D6 }; N2 D(WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs 1 G& h8 H# ?9 x; sto watchfulness without raising DEFCON. WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. * {% Y9 X/ S6 X8 {1 ]9 S% L) zWavelength The distance between two points having the same phase in two consecutive 7 j) Z# n) S$ t: z p) r: [- pcycles of a periodic wave, along a line in the direction of propagation. 7 g5 @+ E8 a4 W) e9 [5 IWB Wideband. ( Y! D% x; U8 y( {0 `WBM Weapons Battle Manager(s). WBS See Work Breakdown Structure. 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. 5 _1 D( k' m! h4 D1 z; zWDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be launched.