航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T ; _# G4 k0 d0 }( P4 @298 . C# b- x2 w* k) Y5 ]Theater Missile Defense Council (TMDC) . g% r7 s4 M9 k) q! n: `5 P8 RA consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for 8 ^2 g# _! O6 x! zAcquisition/TMD, membership includes MDA TMD Directors, representatives of 2 K3 H/ n9 K1 L8 p$ jeach applicable Service Program Executive Officer, and TMD Executive Agents and Program Managers. s, M3 R& ]5 ^" O$ W5 r9 @" [Theater High Altitude Area 7 I @9 U \2 A" i' QDefense System " o. J* W' f$ U+ B- X( \! d(THAAD) A ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at ' ~1 w0 I( B) }) ^greater distances. Will provide an overlay or upper tier to point defenses such as 5 u N0 \5 |1 xPATRIOT. / w! w" X5 Y9 ~8 f* P9 c) R2 f7 kTheater Missile 9 E" z; E& L/ w5 f(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. Theater Missile Defense (TMD) OBSOLETE. The strategies and tactics employed to defend a geographical area 3 M" q% R- U% K$ ~1 A/ Woutside the continental United States against attack from short-range, . Y8 M$ I% H7 Z5 d& ~. i; Fintermediate-range, or medium-range ballistic missiles. Theater Missile I# M* G8 b; S8 nDefense Ground- Based Radar (TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and " a& X3 M9 Y8 z) p/ Q8 e2 Jdiscrimination capabilities for the THAAD interceptor system. Also referred to as ) t# q0 @+ P5 q+ G" U6 s" j6 T VTHAAD Radar. 9 a% c* @: N: `Theater Missile 1 h, O" w0 w, ]$ W" uDefense Initiative (TMDI) ! t% k: P& U6 b4 S) xAn initiative under which all DoD theater and tactical missile defense activities are / D6 F) ^6 |4 Kcarried out. Section 231 of the National Defense Act for Fiscal Year 1993 5 u. o7 k( w7 \* ^4 j) y& j(Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. ; U9 c" T$ ^- _! Y5 [' IThermal Energy Electromagnetic energy emitted as thermal radiation. The total amount of thermal energy received per unit area at a specified distance is generally expressed in terms of calories per square centimeter. & e I3 G- J" _) z1 I: i7 {3 UThermal Imagery Imagery produced by sensing and recording the thermal energy emitted or \- W' F% ]* H# Sreflected from the objects, which are imaged. 4 n1 U. E R; y: g8 [Thermal Kill The destruction of a target by heating it, using directed energy, to the degree : H W8 A% {3 W' L* ~2 Mthat structural components fail. Thermal Management Technologies/techniques associated with the control and management of . Y+ \6 W; y6 A7 g! B% h/ l. }thermal energy, its generation, dissipation, and recovery. $ m' V: B3 [ l5 |: H% {Thermal . B* O$ f1 J0 B! ~# r3 _6 |Radiation ! A8 u5 U4 P8 O+ ^# y% NElectromagnetic radiation emitted (in two pulses from a nuclear air burst) from the fireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. Thermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, emitted by the nuclear weapon residue by virtue of its extremely high temperature; it also is referred to as the primary thermal radiation. It is the & O$ ^) }! I U; g4 xabsorption 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.) T# J2 `5 ^/ [2 X$ }6 z& cMDA GLOSSARY, VER. 4.0 T ( ^6 W# L! \, J299 Thermosphere The atmospheric shell extending from the top of the mesosphere to outer space; it is a region of more or less steadily increasing temperature with height, starting 3 E: p$ D' Y& s! Z% J. [+ _9 m1 h( oat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. Threat Characterization & H7 s3 L: c2 H* h2 r0 D NAn assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor ; y" J- @) i7 t8 e/ {' r(Threat Tube) . P3 y9 n$ z$ `A tube containing all the objects originating from launch sites and aimed at r0 o9 G2 n8 _& f0 {: q2 m6 q2 Qtargets whose spacing is close enough to permit the tube around the object 6 [ M% H+ Y+ _3 H, f. dtrajectories to be represented by a single trajectory in battle management 7 K) [# b% ?+ Z- X, Qcomputation. 3 p: T" g. W$ s6 Z; D9 ZThreat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive ; i0 c6 Y& {: m; J6 w6 _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 : Q5 r8 ^* c9 {. A4 Nobjective. Threshold 6 H; ?# @0 I2 Y! b0 nDefense - K" b- {& ?/ l; j1 V" X0 D7 M7 gA defense strategy that concedes that the target can be destroyed at a price that is not prohibitive, but the presence of the defense is thought to require the 8 d$ g' p3 c+ Moffense to mount a relatively large and complex attack. 6 y: h7 ^. o3 n* p8 o- ?* mThrow Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. ; t) v% U' q2 \( a" mThrusted Replicas (TREPS) Conical decoys equipped with a miniature rocket device. Generally used to change the decoy’s optical signature to resemble that of an RV in the reentry , }* G; O' p7 d1 Q$ Uphase. 2 A4 U# J* b# I/ L9 uTI (1) Technical Instruction. (2) Technology Insertion. TIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. (2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. : S4 U* b/ V) OTIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. TIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. ' ^4 |$ j; y5 E. N& ETier An integrated set of SDS elements that address a particular phase of the threat ( I) Y8 u; n% }: T8 {(e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. TIIAP Telecommunications and Information Infrastructure Assistance Program. ' w, L! W8 P5 b9 J' V1 kTIL Technical Insertion Laboratory. - M( s1 e; ?* ]3 E3 y) NTIM Technical Interchange Meeting. % Y; P+ ~0 h# yMDA GLOSSARY, VER. 4.0 T 300 Time-Phased 4 v: h! v. f' D% b$ W/ dForce and Deployment List Appendix 1 to Annex A of the operation plan. It identifies types and/or actual Z1 g" e- u. |( z3 ~units required to support the operation plan and indicates origin and ports of . }/ u; X1 K' c' h9 xdebarkation or ocean area. / Q& G& h( v5 h: `% T2 ?2 Z( STime of Flight 9 e& |" p( X9 m. W4 ?2 W5 J(Max) 9 U, J9 c6 y9 R5 D# RThe maximum time for a booster or vehicle to perform its function from time of launch. ; N$ P% e0 H5 v0 g% r$ MTime on Station The time the sensor is in its operating position. 6 [& k6 m1 a- D( tTime Sensitive Targets & ?4 \0 L# w- K M. d7 FThose target requiring immediate response because they pose (or will soon 6 V! ^2 d8 G. u: |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. 4 m' @& L' Y# i8 Z0 ^TIMS Training Integration Management System (USAF term). TIN Theater Intelligence Networks. : t; d6 ~, \6 D" u4 [; _0 UTIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar $ T8 ]1 J. G& ~3 L* S2 f6 }6 ITerminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety & I1 S- g- z* D7 [TIS (1) Trusted Information Systems, Inc. (2) Technical Information System. Titan USICBM. D/ K6 I* H% Z# A6 _; QTIU TIBS/Tactical Interface Unit. TIWG Test Integration Working Group. (U.S. Army) , f' b; f9 g% L' HTL Team Leader. 4 a, H3 |- S& ~& _* j+ bTLA Time Line Analysis. TLAM Theater land Attack Missile. 5 K; V! V1 A- o) c9 I( p+ DTLAM/D TLAN [with submunition] Dispenser (Navy term). # M; B; Z+ y& cTLDD Top Level Design Document. TLV Target Launch Vehicle. 9 w3 L& {! k" I7 V* @TLX Teletype. & B6 {" _/ e( R) M1 F% X4 A$ H# [TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). / D; }* z! R5 X3 s6 a8 ?' _; O& lTMCC Test Monitor and Control Center. TMD See Theater Missile Defense. # A2 B. }' o6 C5 s7 A7 Z, f5 dTMD C2 Theater Missile Defense Command and Control. 5 a( X" M2 A8 D2 |3 {/ R6 AMDA GLOSSARY, VER. 4.0 T $ u3 A0 G* M8 }301 TMD C 3 I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. TMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). . S6 F+ D- Y1 S$ t B2 s7 t( q- p/ STMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). 8 M. f8 e. A7 C" D* p4 oTMD IA Theater Missile Interoperability Architecture. ; {8 O! r# [$ b m9 [( lTMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. TMDC Theater Missile Defense Council. TMDE Test Measurement and Diagnostic Equipment (ILS term). 1 e3 l% f3 n b. H5 KTMDI See Theater Missile Defense Initiative. TMDSE Theater Missile Defense System Exerciser. TMMM 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. + K$ [' X- \+ J2 QTNF Theater Nuclear Forces [Treaty term]. / K' L+ I- q5 V/ w2 Y0 K# cTNT Trinitrotoluene. TNW Theater Nuclear Weapon. & f0 h( ^$ \6 S! h0 dTO (1) Task Order. (2) Technical Order. TOA Total Obligation Authority. + \% f7 c( ^9 f8 z' bTOAM Tactical Air Operations Module. TOC Tactical Operations Center. " _; W$ p. K, j3 o/ v' B# d6 s2 KTOE Table of Organization and Equipment. . ^. f0 o$ t+ K7 k6 B; A: PTOF Time of Flight. & J( o# ]* c- RTOI Track of Interest. TOIA Task Order Impact Analysis. Tolerance The ability of a system to provide continuity of operation under various abnormal 6 k: W0 s. Y0 m9 n7 K2 \+ o* yconditions. & b& ^! V5 e: K& J" k! i! sTOM See Target Object Map.

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Tomahawk US ground launched cruise missile. M7 Q9 K7 Z6 t7 C: ?MDA GLOSSARY, VER. 4.0 T 4 ^ Q7 i$ e% A9 v3 {* V+ |302 TOMD Task Radar Management Details. : K. i4 s: P) t- eTOMP Task Order Management Plan. TOMS Total Ozone Mapping Spectrometer (NASA term). 2 Q2 n! z( e, R' U4 L; j7 ]TOO Target of Opportunity. TOOL Target of Opportunity Launch. * Y% H8 W* ^% B, @TOP Task Order Plan. + t$ f$ Y2 L# A: n8 X: ~. lTop-Down Pertaining to an approach that starts with the highest-level component of a 3 G" z0 [$ o9 C' ^* I: }$ e7 v$ rhierarchy and proceeds through progressively lower levels; for example, topdown design, top-down programming, top-down testing. Contrast with bottomup. Top-Down Design * q9 J- \4 a; d. v) o' ]6 }0 RThe process of designing a system by identifying its major components, decomposing them into their lower level components, and iterating until the desired level of detail is achieved. Top-Down Testing # g, h3 y- p" B5 \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 # y3 ]: v/ M8 H% `technology to U.S. BMD applications. TOR Terms of Reference. TOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation Authority (TOA) % ]* [/ C8 x+ oA DoD financial term, which expresses the value of the direct program for a given : L$ F. G4 d q2 k. ifiscal year. ; J) u" f8 c9 ZTotal Quality Management (TQM) A management philosophy committed to a focus on continuous improvement to ' L3 e8 F9 G% f3 Kproduct and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. Toxicity The kind and amount of poison or toxic produced by a microorganism, or ) t$ h+ i2 |$ U+ o* _possessed by a chemical substance not of biological origin. " v7 ^6 s& |+ FTP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. " `/ z1 s5 @- e; B: A! tTPALS Theater Protection Against Limited Strikes. - S: ~8 n+ v9 ?2 ]0 s, W$ \TPBM Terminal Phase Battle Manager. # u% ?3 R# J/ j# E! HTPD Mobile Tactical Radar (US). , D- d7 k9 D0 l9 C1 J/ z) m% bTPDR Total Processing Data Rate (TelComm/Computer term). ) y% L- f- W& k# R( G9 PMDA GLOSSARY, VER. 4.0 T 303 TPEC THAAD Performance Evaluation Center. ! u; t, s3 S; [4 WTPEM Technology Program Element Manager (SDIO/MDA term). % ?1 U6 T. V/ U) wTPFDD Time-Phased Force Deployment Data. 4 b4 s+ V! T) @* QTPFDDL Time-Phased Force Deployment Data List. TPFDL Time-Phased Force Deployment List. & @, t) `2 y3 q" Z5 S5 eTPM Technical Performance Measurement. / @0 ^3 |( p0 t6 [4 w3 ~/ y: H) uTPMT Total Preventative Maintenance Time (ILS term). 4 M& i$ ]8 r E7 a8 ^( L/ v6 OTPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target " p+ a: ]. R2 W, }$ B2 P* X# UPerformance Report. TPS Thermal Protection System. TPT Theater Planning Tool. 8 g8 H1 h5 {; T0 ^) I- f" A7 C7 NTPWG Test Planning Working Group. (U.S. Air Force) " _0 D3 I, }# v( p8 KTQM Total Quality Management. ; M6 s; ?1 a4 R: _: nTraceability (1) The characteristic of software systems or designs or architectures or domain models that identifies and documents the derivation path 1 m! P" v0 U E9 l2 }* B) w$ U(upward) and allocation/flowdown path (downward) of requirements and constraints. ) J5 D8 V/ F3 I6 N(2) The degree to which a relationship can be established between two or 8 K' j W! U9 y4 y5 b8 @& v: Xmore 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. ' v* k2 W8 t' o$ k" c) z, U(2) To display or record the successive positions of a moving object. : r! {5 [8 K' _: }% r/ p7 ~" P(3) To lock onto a point of radiation and obtain guidance from. 6 P0 B! ~; J4 \) ~- d6 s" L(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. ( L/ [2 }/ }* ~! q# b* MTrack ( Y6 y9 R8 O' p, G8 NAssessment 2 T6 v8 L6 Z' yThe Track Assessment looks for anomalies in an object’s track data. An anomaly in the track may indicate a hit. Track, Birth to Death 8 I+ U, e6 I& P7 M9 fThe maintenance of an associated track through all phases of flight (i.e., boost 4 j* L7 v3 u% ?5 J1 n2 _4 rto reentry). Track Correlation The combining of track information for identification purposes, using all available data. Track Extension This term usually applies to improvements in track estimates by use of new data. It is sometimes used to describe a process of target extrapolation to a future time or place (e.g., reentry). 9 ~) j1 V7 e2 ?1 X2 N: u, ^MDA GLOSSARY, VER. 4.0 T 304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS $ g" _' B6 d) s) bmeasurements with irradiances with confidence of association; or some subset of 4 l3 h2 \( a/ G G; k1 |1 z9 P3 W% sthe above. Track File-Track - p. u3 d F) d" Y3 SHistory A set of individual track reports on a particular object, which taken together % E9 n ?6 F( b8 e+ g) ^produce useful approximation of that object's future position in space. . @5 S& K% H, ?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. , d8 D0 z; {' M) w8 z- _) L/ zTracking The act of generating and maintaining a time history of an object's position and any other features of interest. Tracking and ) i/ s" d, X9 q! q$ V6 M' B. sPointing - v! ?5 A- F, t1 cOnce 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 are frequently integrated operations. 3 r5 D- c. Q1 C8 v- V) a; NTracking Range (Max) , ]/ M) Q" {" ZThe maximum line of sight distance at which a sensor can maintain track of an object. Track Initiation The formation of the first or initial estimate for a sensor system of the state vector 1 L: E% T: D) r/ m4 Fof an object. The process typically requires observation from a number of frames. Track Production 7 [, N0 I& Q( U, L: |+ rArea 8 b" B: m3 X. aAn area in which tracks are produced by one radar station. 5 y3 E: @+ l% ~! u- J* zTrack Symbology Symbols used to display tracks on a data console or other display device. 2 K5 h' m/ z) S# y9 o$ HTrack Telling The process of communicating air surveillance and tactical data information 8 R8 p# ?' x+ ]! l% Ubetween command and control systems or between facilities within the systems. Telling may be classified into the following types: back tell; cross tell; forward tell; lateral tell; overlap tell; and relateral tell. TRADEX Target Resolution and Discrimination Experiment. TRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. Traffic Capability Maximum The maximum number of objects per unit time which the sensor system can ! w/ w" O* S$ ^5 Q( W( A, Jmaintain track files. ' o6 r9 W7 N3 n% z5 P1 bTraffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high 9 W3 w. Q: w, j; g# a K! uendoatmosphere. 2 R$ v1 L1 X1 hTrain 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. Trajectory Histories 5 w. o6 T& r, L. O# KTrajectory information on targets recorded over a period of time. TRAK A data base management system (not an acronym). 2 @8 q# k- j8 w- z2 Q" PTrans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. 6 o/ J# D( Z6 j+ TMDA GLOSSARY, VER. 4.0 T 305 / S% a& N F1 @9 pTRANSCOM [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 Production B0 o7 N- e4 H4 hA risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a 3 x" y- v/ i3 g' X2 O6 u: Bprocess consisting of disciplined engineering and logistics management to , k1 [: E; K3 q. a, x( ]ensure the system is ready for manufacture. (See DoD 4245.7-M.) 0 E, i2 X0 ^1 u3 CTransmission Security (TRANSEC) 1 k W( A) D" UThat component of security, which results from all measures, designed to protect $ r- n& N) p" L! mcommunications transmissions from interception and traffic analysis. (See ) Y2 g# V! @8 M DCOMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative ! q9 N/ s( Z$ _6 [' k" R3 Xspeed of the fluid is subsonic in some places and supersonic in others. This is encountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. 9 T5 c2 L2 N( f' ^' n& f- ATrap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. Traveling Wave Tube (TWT) 6 d. K$ X2 D$ RAn electronic tube in which a stream of electrons interact continuously or 5 N6 E8 a1 w, H# \. X5 Rrepeatedly with a guided electromagnetic wave moving substantially in % \* m; E4 S* c5 S) o9 O0 D+ T) ^synchronism with it, in such a way that there is a net transfer of energy from the stream to the wave; the tube is used as an amplifier or oscillator at frequencies in 8 }, A3 h% C" Othe microwave region. Traverse (1) To turn a weapon to the right or left on its mount. (2) A method of surveying in which lengths and directions of lines between points on the earth are obtained by or from field measurements, and 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. 9 `) S/ l5 ~) X0 N, aTRB Tactical Review Board. TRD Technical Requirements Document. TRE Tactical Receive Equipment. * {0 s" s8 i$ ATREA Transmit/Receive Element Array (THAAD). TREE Transient Radiation Effects on Electronics. 0 K3 N% V! I- Y' ^ |# | gTREM Total Radiation Environment Model. w O! J/ C0 t. I0 `TREPS See Thrusted Replicas. TRESIM Tactical Receive Equipment Simulator. 5 y8 f) W3 Y) J' s0 W9 t: _' ^- uMDA GLOSSARY, VER. 4.0 T 306 % g0 O" Y/ W, @( a o# nTRG Threat Reference Guide. 0 z& o. |# U/ k5 W. W" LTRI-TAC Tri-Service Tactical Digital Communications System. 0 t: U. x6 ]8 s5 f/ GTRIDENT Class of US ballistic missile submarines (USN term). 2 N$ i9 [4 K- p: q& F* {TRIDENT I (C-4) US SLBM (USN term). & S8 x0 s# Z" H. \8 F$ U% P- I& f5 \1 lTRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. TRM Technical Reference Model. TRMP Test Resources Management Plan. TRN (1) Task Requirements Notice. (2) Test Requirements Notification. 6 \. ` E7 O6 R9 G2 }" T9 b4 j NTrojan Horse A computer program with an apparently or actually useful function that contains / L: c/ ~6 t! c! ?/ eadditional (hidden) functions that surreptitiously exploit the legitimate , z1 s, [. r4 b$ R$ N0 @authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. 3 X s' @4 U& B0 K5 bTropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the ! t$ l0 K9 z2 i% y: `tropics. (See Stratosphere, Troposphere.) Troposphere 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 $ ]9 U! w8 q- F8 r0 O3 D4 Taltitude, clouds form, convection is active, and mixing is continuous and more or 7 o- O5 ]$ A( }( w) i$ jless complete. 5 l+ z$ l v+ n& \- ~: p: F& ~ a+ LTropospheric Scatter ( c; o6 B+ o7 R7 k; p9 U& ~The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. [4 J" n- A6 ~3 M, UTRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). / {( i/ @ D! \# O5 @/ Y3 k" D(4) Technical Requirements Package. : F% q, ~* K" _! T; D- l1 h' YTRPC Technology Readiness Planning Committee. ) \' B6 r$ n: ~6 {TRR Test Readiness Review. Trusted Computer 4 j( q {: ~4 nSystem/Software A system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. 2 {6 d7 A8 [7 V; I; m6 vTrusted 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 % D( M- m* y: J# f h% sof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. 0 |* k) Y2 C# v/ L! d6 r: ^6 {TS (1) Terminal Service. (2) Top Secret. MDA GLOSSARY, VER. 4.0 T & s3 \9 N& ^' j2 j9 c307 ; G/ P& C; S7 X/ ATSA Technology Security Analysis. 2 @ s2 I0 t- |( X" n$ P) ZTSD Tactical Surveillance Demonstration. . c" c* O& h' T# PTSCM Tomahawk Strike Coordination Module (USN term). TSD Tactical Surveillance Demonstration. ! e& n, \$ Z4 |TSDE Tactical Surveillance Demonstration Enhancement. / A; d+ c# |/ Y) M1 m$ GTSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. 8 E9 t* G, D/ D/ v+ J: _ UTSMA Theater of Strategic Military Action. TSP Target Support Plan. & S$ z# M0 z$ i: `TSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. 9 _' F6 B' T1 L `/ e. m2 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 |: h0 f; Z+ W6 c6 c" z; S3 eTTA Total Time Accounting. & M" e @, J5 `' }TTBM Terminal Tier Battle Manager. TTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP program, which funds the development and demonstration of technologies, 5 ~6 s9 H- [( B) Mwhich have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). TTL Transistor-to-Transistor Logic. ( k& ?1 S" D6 B' T: x( N/ M* F: gTTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. 2 M+ ], Y$ t) H; Y+ X9 QTTT Test Technology Transfer. & `' Y$ Q/ m# r C8 L, ^MDA GLOSSARY, VER. 4.0 T 308 TTV Technology Test Vehicle. " Q% U# u# ~2 H$ w) _TTY Teletype. + T, x6 ^) ^# S% p, ZTUG TRACE User Group. . T; n4 H4 L5 mTV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. * Y' T; \5 Y2 d6 dTVE Technology Validation Experiment. TVM Track-via-Missile. + A& L/ e l, bTVV Technology Validation Experiment. 0 ]+ i/ Z$ O6 |9 TTW Tactical Warning. + B2 P5 O3 d: I' W2 N% A KTW/AA See Tactical Warning/Attack Assessment. - t1 A7 F% w1 x) e jTW/SD Tactical Warning and Space Defense. " {6 ?( G a2 {& k# O+ XTWG Technical Working Group. ; q2 `2 H, }8 h% N$ ]; H8 jTWS TOMAHAWK Weapons System (USN term). 9 u2 R( b7 ~* W, [: Q3 n' c- LTWT Traveling Wave Tube. - p/ I( y: H2 N( M3 lTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). ) O6 l( Z8 @1 t* O( i& xTY Then Year (PPBS term). ! ?. q6 ^4 c. c6 DTY$M Then Year Dollars Millions. $ \( y" S6 |! b( W6 P1 iType A - System Specification 0 K8 Z' z: w) c+ `* v% X6 FStates all necessary requirements in terms of performance, including test 0 C+ q0 C. T" U8 [' y/ h) n: iprovisions to assure that all requirements are achieved. Essential physical constraints are included. Type A specifications state the technical and mission 9 k5 @' ?, K! ]$ X$ Mrequirements of the system as an entity. Type B - 4 Q: s2 Q$ F, ]' ADevelopment Specification $ M, `6 ]* ~. g. e3 M# ]States all necessary requirements in terms of performance. Essential physical ) r# i$ {& _$ L3 h$ Aconstraints 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 4 i' {+ H& e |7 _' n& Wthose characteristics. Type C - Product 9 A- N8 M. C9 e0 `3 GSpecification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of primarily function (performance) requirements or fabrication (detailed design) 4 |" A& `5 Y& f) Q+ H/ O( frequirements. Type C specifications intended to be used for the procurement of ' Y6 H+ ]# b) j% \' P) L- s, hitems including computer programs. Typhoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a , z' |. r6 p C, r9 _' sset of characteristics, and associating the characteristics with a specific class of 2 F- Z% A% q: Robjects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 309 U Uranium. 0 j$ C' h6 H h# PU&S Unified and Specified [commands] (pre-1996 term). U.K (UK) United Kingdom. : U4 f8 Q+ y9 d) K& u$ a8 yU.S. (US) United States. * S$ R1 b# [0 ]' J9 ?3 T! gU.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. 5 D3 _3 [2 f8 ~8 O5 {UA User Assessment (NMD BMC3 term). # M% L0 T) ~# }& \( L) _$ t$ JUAE United Arab Emirates. UAV Unmanned Aerial Vehicle. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. 5 C% V5 o+ Q' k0 E- [1 E4 h9 W) o) KUCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. UD/ASD United Defense/Armaments Systems Division. $ w' y1 _; }& i! m& k" B, y- |UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating 2 X1 ?, Y/ x- ^% G8 y8 land coordinating program requirements for testing MRTFB ranges, as well as the # k1 s- l( ]3 X- a- {capabilities and plans of test ranges to support program requirements. It / \7 Y+ `, [( d/ w' r1 Q# `4 Rconsists of a series of six planning and execution documents: 10 are the 3 s, Y8 r. {9 a& N8 WProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) : l0 b9 s' h7 r' DOperations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the Range Commanders Council (RCC).

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UE Unit Equipment. UEME Unified Electro-Magnetic Effects. 7 B) i3 {$ R" p3 _' `% I sUEWR Upgrade Early Warning Radar. $ w, |5 _3 r, SUF4 Uranium tetra fluoride. 8 I5 I# u" O5 K/ c5 K: tUF6 Uranium hexafluoride. # k* \& @) |( E! YMDA GLOSSARY, VER. 4.0 U 310 * t( y% O5 ^8 q$ z( S5 rUFG User Focus Group. UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. UGF Underground Facility. / p, J$ r1 O7 S4 w1 s/ `5 k+ F0 iUGS Unattended Ground Sensors. UGT Under Ground Test. . ^0 }9 L7 `% FUHF Ultra High Frequency. 7 R* o E" \; ^; ~* fUIC Unit Identification Code. UIN User Interaction Node. 2 f# o1 W1 x0 l/ |2 P9 F" bUKAS (1) UK Architecture Study (2) UK Associate Studies. % E* a8 V) T- H+ LUKEADTB UK Extended Air Defense Test Bed. UKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. 5 z0 r6 S& R5 u% |2 HULTDS Unit Level Tactical Data Switch (SINCGARS term). Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet 1 C" @& K. }/ e* F1 b(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). 1 E6 n7 H4 h& u+ h) MUMD Unit Manning Document. / ^9 R0 O4 W/ S1 bUMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. * O4 J) h( `3 P3 U) C4 eUnconventional & \3 T4 a+ a: B x1 h$ a, VWarfare * M& Q* O: H! U6 v. _+ ?. X" X, fA broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare % B1 g) s% e: L% s. `. S; a* fincludes, but is not limited to, the interrelated fields of guerrilla warfare, evasion and escape, subversion, sabotage, and other operations of a low visibility, covert, or clandestine nature. Unified Action Armed Forces A publication setting forth the principles, doctrines, and functions governing the - i3 \. M7 c) p4 H5 O T. d% zactivities and performance of the Armed Forces of the United States when two or more Services or elements thereof are acting together. # h" u5 W. p2 D1 X ]8 n5 {Unified Command A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Services, and 5 }4 G+ C3 R% C. xwhich 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 % c: P3 n) b6 B' oUNISYS UNISYS Corporation. & S& \- K2 B& i3 KUnited States Army $ L/ t5 m. c& f# i4 \, r2 N) E$ RSpace Command (USARSPACE) & k- j. V# k# p, |) _The Army component command of USSPACECOM. Responsible for the Army & a7 G( G2 F l$ b, }# Belements of the SDS system. Located in Colorado Springs, CO. - a1 h& Y5 l! C- y, P1 rUnited States 0 z& v; b) E0 MSpace Command ; G# c1 _0 I* z$ G(USSPACECOM) # {" n) ^" S2 CThe unified command responsible for planning and conducting ballistic missile defense. Located in Colorado Springs, CO. United States 8 N; G4 ]+ D' U6 ?' rStrategic $ E6 F: G# p6 BCommand (USSTRATCOM) - o/ L( i+ d B4 O9 Z4 P$ h, `/ ? CThe 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 0 O9 H6 P: a# ITransportation 5 ~2 n- v9 W1 I$ ECommand ) I( J; b* T5 F5 @' ~/ f8 F7 c(USTRANSCOM) The DoD unified command responsible for providing air, land, and sea , O o" V! |/ m% X! l, ]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 , q3 b+ D" K6 m1 u8 Y0 a4 P' i3 Tterminal services, and commercial air, land, and sea transportation, including as needed to support the deployment, employment, and sustainment of U.S. forces on a global basis, as directed by the Secretary of Defense. Located at Scott # h8 P1 E& C8 [5 ^ R* v4 kAFB, IL.

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Unk Unknown. Unresolved Objects Objects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. - @5 m3 D4 |1 X, Z: ]. CUNSC United Nations Security Council. % R" ?6 @5 z4 w4 ~; o& @: zUnSecEnergy Under Secretary of Energy. UOC Usable on Code (ILS term). " l9 i; v' b2 q" yUOES See User Operational Evaluation System. UPD Unconventional Passive Discrimination. 1 S7 U$ m, V6 V; u; cUPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). ) I' @$ S$ {: w% |) C/ r1 hURIP University Research Initiative Support Program. URL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. - ~/ s f" h/ V1 M% QUS/UK United States/United Kingdom. , S; s/ [ a1 F) e* ^* y" o) B2 TUSA (1) United States Army. (2) Under Secretary of the Army. " Q6 n2 o5 |4 zUSAADASCH U.S. Army Air Defense Artillery School. USAAE U.S. Army Acquisition Executive. & G: x1 E- N7 Q& SMDA GLOSSARY, VER. 4.0 U 312 1 l) n& k4 c3 F2 qUSACE United States Army Corps of Engineers. USACOM United States Atlantic Command, Norfolk, VA. USAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. ( m1 T7 P( ?8 v3 n) o& mUSAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF Systems Command /SSD. * R. r" Y) y# l# ^2 h( yUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ( v+ N) h5 ~* @: \3 i7 `/ ZUSAF/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. 5 V' h6 S3 F: ?" y( z SUSAFE U.S. Air Forces in Europe. USAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. USAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. USAMSIC See MSIC. USAMSAA U.S. Army Materiel Systems Analysis Activity. USAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. USARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. USARLANT U.S. Army Forces, U.S. Atlantic Command. - h' j3 p" W- CUSARPAC U.S. Army Forces, U.S. Pacific Command. USARSPACE See United States Army Space Command. USASDC U.S. Army Strategic Defense Command (<1Oct 92). 4 Y- X7 d6 [9 _- P8 wUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. L N( v! L# ^* @: {9 u8 `& K" mUSATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. USC U.S. Code. USCENTAF U.S. Central Command Air Forces. 8 }6 k8 ~2 M w% I+ [MDA GLOSSARY, VER. 4.0 U 313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. USCINCCENT Commander in Chief, U.S. Central Command. # A3 K% [4 }- y/ k9 G9 kUSCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. : T9 I3 w9 c7 I+ ]USCINCPAC Commander-in-Chief, U.S. Pacific Command. USCINCSPACE Commander-in-Chief, U.S. Space Command. S! Z, m( J7 o; ]4 g* b: d+ I1 QUSCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. USD Under Secretary of Defense. 4 c5 _" I2 i! L! }$ u; r/ ~$ ~USD(A&T) Undersecretary of Defense (Acquisition and Technology). ! u6 K2 [, [6 p; S7 U6 t7 `8 yUSD(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. USDA United States Department of Agriculture. & c0 p V( @% Z& i* U& E3 q jUSDAO U.S. Defense Attaché Office. USDELMC U.S. Delegation to the NATO Military Committee. 9 O2 ]5 D9 c/ B* ^, m Y" UUSDR&E Under Secretary of Defense for Research and Engineering. 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 operate it successfully and easily. User Operational Evaluation - Q* g" m9 F% B3 C Q2 _- }- YSystem (UOES) Prototypical system developed and tested as part of the early phases of the development process. A UOES has two objectives: (1) testing, evaluation, and ' Y" z! Z3 ?4 i7 ztraining for a system proceeding through the normal acquisition process; and (2) contingency defense capability should the need arise prior to completion of the , V; @( I! k: snormal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. 2 q# n) w' P+ ^: u1 P* |9 c5 |USFJ U.S. Forces Japan. . v7 f6 k' }' N0 G/ O; b; n* cUSFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. , k) V1 p9 s8 {9 W$ o ^2 V- s; \USG U.S. Government. , P' R* p R& a6 U/ k5 }USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U 314 USLANTCOM United States Atlantic Command (Now see USACOM). USLANTFLT U.S. Atlantic Fleet. \" U/ {# v7 w5 j! [1 ` aUSMAR- FORCENT $ G: i8 n2 s, H# F; tU.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. 2 t8 ^; B2 t; G0 s7 R' c, tUSMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. USMILREP U.S. Military Representative. & M4 T/ @/ a6 S, p7 KUSN United States Navy. USNAVCENT U.S. Naval Forces, U.S. Central Command. , Y5 N3 Z: l! r! m& d8 b. F0 KUSNAVEUR U.S. Naval Forces, U.S. European Command. @ n+ I% K( s& F: A, x GUSNIP U.S. Naval Institute Proceedings. 6 N% T8 ? V) p+ P6 S1 l2 gUSNO U.S. Naval Observatory. + x+ C. S8 F5 _8 p1 ^USNPGS U.S. Naval Post-Graduate School. 3 a i9 Z8 @0 i" q% }, A$ ^) AUSPACAF U.S. Air Forces, U.S. Pacific Command. : D1 T/ R) m! t3 R' z" @USPACFLT US Pacific Fleet. USPACOM United States Pacific Command, Pearl Harbor, HI. ( ~% Z. }# d8 GUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. / N/ J4 t- S9 H# q% SUSSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. 1 M! F4 n; W/ sUSSPACECOM See United States Space Command. 4 H1 O! U; K4 N% {: a$ t0 oUSSS United States Secret Service. 5 S$ K/ `) L8 m5 EUSSTRATCOM See United States Strategic Command. 5 {9 z% ?$ a1 J5 ^+ aUSTA United States Telephone Association. ! T) l$ m; S# _- x% ~! t% sUSTRANSCOM See United States Transportation Command. UT Universal Time. UTC Unit Type Code. MDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. : Q K' ^% N8 C% v! ]UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. $ y5 Z; N4 S$ u$ c6 b, `4 I3 sUUT 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). ( m( h6 S5 P% z8 M iUVPI Ultraviolet Plume Instrument. : [/ _! F, ~5 v8 c% y4 CUW Unconventional Warfare. MDA GLOSSARY, VER. 4.0 V 2 \# A3 n4 ?* ]: U# \( V: Z) h316 - [5 {2 N2 h( bV Volt. V&H Vulnerability and Hardening. V&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. * ?. X! q; g* S$ s$ HVAFB Vandenberg Air Force Base, CA. Validation Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, 6 L- {% _: W" E5 i) m$ gtactical situation, system design, tactics, and threat. $ v Y3 j; b, h: R: B: e; |VAMOSC Visibility and Management of O&S Costs. ! L7 B2 N0 F/ A& ~/ _1 DVAR Visitor Access Request. 4 L% u( z& J) MVariability The manner in which the probability of damage to a specific target decreases ! b ^: k% c( E7 `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). VCC Voice Communications Circuit. # ]: S) [; d9 ^, g$ S" }2 T! W1 GVCRM Verification Cross Reference Matrix. VCS Voice Communications System. VDC Volts Direct Current. " e1 f. x: A/ c9 s, SVDD Version Description Document. VDU Visual Display Unit. , R: b) I9 f& s3 [# tVE Value Engineering. VECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering 9 J' l! T3 ]( m# e7 \0 Lrepresentations of a T&E resource accurately portray the characteristics, calculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end i5 I- B7 v1 [ R7 I" V( Oof the development process to determine whether it satisfies specified requirements. ?1 c3 B, ~( J* ~4 T8 H. ]VESA Video Electronics Standards Association. VFR Visual Flight Rules. % r; v$ i0 a: IVGA Video Graphics Array (Telecomm/Computer term). VHF Very High Frequency. + i: j! Z2 g! S! j0 H) |* C! xVHSIC Very High Speed Integrated Circuit. 9 c N) Q, G! b+ MMDA GLOSSARY, VER. 4.0 V ( B/ v! g0 h+ ^0 ^, @4 [317 & C2 P) z( T3 y# r& {1 }) R, TVIDS Vehicle Integrated Defense Software (USA term). + y, }# p2 A8 xVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 6 h. K. s7 }- Q+ z: \1 sOperation Per Second (OPS), using a mixture of experimental three-dimensional 4 R! G- R9 `3 H$ g& gcircuitry and commercial components. Project also demonstrates VIRGIL, a % W. ^" x- D- _! M& ugimbaled airborne sensor with visible, experimental UV and quantum-well IR 2 C' w& g: s, Z" |5 A; Mcameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. , M" P- o) Q5 z3 K& ~VIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. ; [3 k3 [( K/ T# Q; @, WVIS/UV Visible/Ultraviolet. Visibility Range (or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can 0 D1 e8 A: e* ]. f; S2 |0 {just 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 g+ D8 y* q9 |) K- Wexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze - V7 g! R! G7 Y( P) |or fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). / g/ ?+ E3 o" u+ N$ a! i0 mVisible Electro- Optics 3 f# P: k# r0 h# w2 \+ |Technologies/techniques employed by optical sensors in the visible portion of . Z5 X* n# `# K! f/ V: dthe wavelength spectrum. VLAR Vertical Launch and Recovery (UAV JPO term). & }% O0 T" e& k* e. r) eVLF Very Low Frequency. # v+ ?7 ^* ~5 f7 P8 d! Z/ F. iVLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. 6 D" O& U4 V7 W) W" b' u+ |VLSIC VLSI Circuits. ( e) t1 j q1 J% x' A4 Z( y2 aVLWIR Very Long Wavelength Infrared. / O, I" ?; w1 Q7 k( r0 X9 N/ \, DVME Versa Modular European [standards]. VMF Variable Message Format (Telecomm term). $ w( c2 X9 w$ X% ]) C3 O2 TVOX Voice Actuation. 6 B/ c$ \6 R; D( T# g3 T) Z- LVRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. VTOL Vertical Takeoff and Landing [aircraft]. VTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. VUE Visible Light/Ultraviolet Experiment. 7 |7 T# e9 d( f% CMDA GLOSSARY, VER. 4.0 V 318 : R2 [5 N8 v& p1 {% D& K: L; k- }Vulcan UK bomber. " w0 t" _5 X+ w! Q% v1 fVV&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 7 l+ C+ k8 t, }, ]319 # g/ N9 E; a# H9 H% ~+ b! aW/ With. , k, K3 f( r: s. Xw/o Without. % ?' q1 Q: P6 o' B/ nW/TD Warning/Threat Detection. % F/ s D* I& M% f/ n/ f3 O, j. NWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. E& j4 e4 I+ M6 d/ }9 c OWAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area $ A( o( I1 H1 UMunition. (3) Wide Area Mine. (4) Wide Area Missile. $ q x& `( G. j" R' P. bWAN Wide Area Network (Telecomm/Computer term). / g( n( F* g, {( H; jWAP Wide Azimuth Probe. ; v- j0 B/ Y$ z% a: s# F/ i QWar Game A simulation, by whatever means, of a military operation involving two or more " d$ o7 M# R- F0 vopposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. & h7 E, o, n7 n$ X( lWargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the ) c2 A) v4 d% sJNTF for use in CONOPS validation, missile defense program design verification, * [4 c7 \+ D7 R4 R, U: Cvalidation and accreditation, and support CinC/Allied wargames and assessments. ( U+ o7 | B+ @/ K& C" e% c0 nWarhead A weapon, usually thermonuclear, contained as the payload of a missile. Warhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, 5 Y( e/ R8 N9 o) a/ ]airframe, motor, or guidance section. 9 Z+ x4 L5 w! d: UWarhead Section A completely assembled warhead including appropriate skin sections and related 9 }7 u% q% M2 ]4 o, f0 Icomponents. , Q% k- L5 k- h* [2 _WARM Wartime Reserve Modes. Warning of Attack A warning to national policymakers that an adversary is not only preparing its - k- x5 |% {: a, Garmed forces for war, but intends to launch an attack in the near future. f" ?, Q8 C- ~; r. ?Warning Order A preliminary notice of an order or action that is to follow. . C' w# c5 W; RWARSIM Warfighter Simulation (US Army term). $ I1 ^9 p5 \; k' i% ~! x/ x) d* ^WARSIM 2000 Warfighter Simulation 2000 (US Army term). Wartime Reserve Modes (WARM) Characteristics and operating procedures of sensor, communications, navigation aids, threat recognition, weapons, and countermeasures systems that (1) will + c* I6 z1 P# f) F1 I) W$ \contribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if known in advance. Wartime reserve modes are deliberately held in reserve for 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 # T) b: h P, S( f! ]320 WASHDC Washington, District of Columbia. Wastage (Max) The maximum number of defense weapons which, when used, will be ineffective in contributing to the defeat of the offense. * y! E+ L! U3 E$ h" {0 zWatch Condition (WATCHCON) ! t8 _3 d' B* D H& h9 p5 ~) YSeries of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. ! Q# f+ a8 |( F% ^$ AWATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. . S. n+ q1 j* y6 ]Wavelength The distance between two points having the same phase in two consecutive $ D2 y8 \8 v, q% S* Tcycles of a periodic wave, along a line in the direction of propagation. WB Wideband. WBM Weapons Battle Manager(s). - T7 `6 k* g. A4 t) ?( b% _WBS See Work Breakdown Structure. 6 S0 e0 F6 p3 x" _5 KWCC (1) See Wing Control Center. (2) Weapons Control Computer. WCG Workstation Computer Graphics (Computer term). ! T$ K; d; `3 m0 o4 ^6 yWCP (1) Weapon Control Processor. (2) Weapon Control Platform. WCS Weapons Control System. WDM Wavelength Division Multiplexon. " X& ?' a% S1 \Weapon Enabling The set of control functions without which defense weapons cannot be 6 b4 @' ~) o3 U+ Jlaunched.