航空缩略语词典

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MDA GLOSSARY, VER. 4.0 T ( M7 o7 m/ N7 Y5 s298 Theater Missile ; S9 T& E7 {0 w1 GDefense Council 7 k( C% G- P& F+ }(TMDC) 1 ?) @* y' d- K# K2 w6 ^" cA consultative body for considering TMD family of systems planning and programming issues; chaired by an Assistant to the MDA Deputy for + Y1 u6 b1 f l, r) j% sAcquisition/TMD, membership includes MDA TMD Directors, representatives of each applicable Service Program Executive Officer, and TMD Executive Agents 6 t1 X3 @, ^3 n7 M3 gand Program Managers. & u' O- b9 _! J5 x L# V5 B& _8 ?( v6 iTheater High 6 R% q7 Z7 H: W9 I, ^; ~Altitude Area 6 n' g" o. @" _: G1 ^6 YDefense System (THAAD) A ground-based, air transportable interceptor system that will provide wide area defense capability by intercepting longer-range missiles at higher altitudes and at greater distances. Will provide an overlay or upper tier to point defenses such as PATRIOT. 2 m2 X: r, F, `Theater Missile (TM) / ~) I9 o4 v; H+ n& `# ~5 AA 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 ) V* T" O7 u" U' |: n' `2 e& T) Vof attacking targets in a theater. Theater Missile Defense (TMD) " Y- o1 x4 T2 jOBSOLETE. The strategies and tactics employed to defend a geographical area ) R+ I! H4 U9 N8 e6 woutside the continental United States against attack from short-range, 4 G; E; ^' a' Sintermediate-range, or medium-range ballistic missiles. 3 ~5 [4 I4 I/ @ m1 o8 W- P$ M; JTheater Missile Defense Ground- ) K W7 Z) f8 uBased Radar ; s& B1 u3 Y5 c& b/ _(TMD-GBR) A ground-based, air transportable sensor that provides search, tracking and discrimination capabilities for the THAAD interceptor system. Also referred to as THAAD Radar. / q5 a) D* M G1 [Theater Missile ! U9 A+ R+ I/ T" PDefense Initiative (TMDI) 0 H K3 ~( j1 L: R7 _- x* U' s7 pAn initiative under which all DoD theater and tactical missile defense activities are " {+ v$ r5 Q" ?; L3 e! h0 B; rcarried out. Section 231 of the National Defense Act for Fiscal Year 1993 ( j \0 V8 ? `+ }1 N. T(Public Law 102–484) directed establishment of a TMDI office within the DoD. THEL Tactical High Energy Laser. # D% {9 W4 ]0 c8 k7 n- `! U$ cThermal 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. 0 |, \3 W G, n& i! H5 ^Thermal Imagery Imagery produced by sensing and recording the thermal energy emitted or ( w0 `3 b7 j# \reflected from the objects, which are imaged. Thermal Kill The destruction of a target by heating it, using directed energy, to the degree that structural components fail. # ]7 u% S& f1 k: R: JThermal Management , ~" S C) \% Z! g+ w0 X" M4 Q2 UTechnologies/techniques associated with the control and management of $ ~4 j8 S; Q; C. jthermal energy, its generation, dissipation, and recovery. - g4 K [( B9 | t7 Z. v7 J& G: CThermal ! x9 q; j5 w& [+ i6 W# DRadiation Electromagnetic radiation emitted (in two pulses from a nuclear air burst) from the {" d# H8 z+ e: ^( ]& ofireball as a consequence of its very high temperature; it consists essentially of ultraviolet, visible, and infrared radiations. . |7 T7 T. S3 F2 E& P' GThermal X-Rays The electromagnetic radiation, mainly in the soft (low energy) x-ray region, 7 p8 g: j( J Y. _$ U3 p6 x. H: Oemitted by the nuclear weapon residue by virtue of its extremely high . S3 ]+ M6 i% |$ M' Y% `2 ntemperature; it also is referred to as the primary thermal radiation. It is the ' g# ^9 ]; Y' h( s4 Babsorption of this radiation by the ambient medium, accompanied by an increase ( T" _# A7 K/ s3 z" Oin 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 8 C2 c. H+ R, I2 E& i# N, @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 . }8 `4 J5 p, h0 jat 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the , c2 Z1 f$ v; K2 H* L2 t+ ]4 u1 \exosphere and most or all of the ionosphere. ! n$ t3 \ Z" O* OThreat Characterization # {$ Y* k$ _+ l4 E9 R& W. y; \2 UAn assessment of the nature, magnitude and intent of an attack in progress. Threat Corridor ' x' y6 ?: U9 A4 r(Threat Tube) $ C3 e6 n0 z1 t1 y* E% BA 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 2 a( K; N! A) k4 K- M, q/ utrajectories to be represented by a single trajectory in battle management computation. Threat Scenario A hypothetical example of the employment of threat systems against ballistic missile defenses for the purpose of analysis and evaluation of those defensive ( p! A" T/ [% rsystems and architectures. 0 E |! ]3 H+ p- d4 A# S: ?Threshold Performance capability or characteristic level in terms of a minimum acceptable ) x, W: Y5 {3 R% Mvalue (threshold) required to satisfy the mission need and a performance 2 y% W3 }+ t! wobjective. ; Y( o3 A# M$ ~0 X- e7 \! [1 d& EThreshold Defense A defense strategy that concedes that the target can be destroyed at a price ( |0 q( R+ ^ m5 T( F% mthat is not prohibitive, but the presence of the defense is thought to require the ' w' Q8 w8 T; T5 l8 M% loffense to mount a relatively large and complex attack. Throw Weight All weight in an interceptor, above the sustainer, which serves as the kill vehicle. ) I8 n) x* o2 f8 KThrusted 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 + Y. @0 s7 Z* c8 _8 Q0 n, b1 K, mphase. TI (1) Technical Instruction. (2) Technology Insertion. # i+ Q* E9 G$ X3 Q8 x. iTIARA Tactical Intelligence and Related Activities. TIBS (1) Theater Information Broadcast Service. 8 E7 i1 d8 \( F(2) Tactical Information Broadcast System. (3) Theater Intelligence Broadcast System. TIC (1) Thermionic Integrated Circuit. (2) Technical Information Center. 7 O" h4 t# ?( _5 Z; }: z3 _TIDP Technical Interface Design Plan. TIE (1) Technology Integration Experiments. (2) Technical Independent Evaluation. Tier An integrated set of SDS elements that address a particular phase of the threat (e.g., boost phase). Tiered Defenses The use of defensive systems at different phases of the missile trajectory. TIES Technology Integration Equipment System. ' Q: b5 x, l/ G! zTIIAP Telecommunications and Information Infrastructure Assistance Program. TIL Technical Insertion Laboratory. TIM Technical Interchange Meeting. : `5 G, T2 i- k- N% }$ c) I4 kMDA GLOSSARY, VER. 4.0 T 1 H0 S) e5 C$ E3 q' L9 f300 Time-Phased 9 }1 I q0 K, ?% }4 R" gForce and Deployment List , I4 X: \. s7 g: tAppendix 1 to Annex A of the operation plan. It identifies types and/or actual units required to support the operation plan and indicates origin and ports of : _4 I) j* T; R) e+ R2 Wdebarkation or ocean area. ( j z: G: @5 Y: M. I* rTime of Flight 8 ?! v/ Z* P# z! u9 s(Max) / C! e( s+ ~7 {0 q2 p" i% x' I2 eThe maximum time for a booster or vehicle to perform its function from time of launch. Time on Station The time the sensor is in its operating position. Time Sensitive w5 H" ]/ t3 t i1 r7 eTargets Those target requiring immediate response because they pose (or will soon 8 I3 [- y( E, P. @' Gpose) a clear and present danger to friendly forces or are highly lucrative, . M* [# l% x3 S! cfleeting targets of opportunity.

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Time to Station The time required to move a sensor to its operating position. # U) C5 R1 t- C5 J+ {8 eTIMS Training Integration Management System (USAF term). ) K8 k9 q- Y4 g9 h$ q8 ITIN Theater Intelligence Networks. TIP TOPAZ International Program. TIR OBSOLETE. Terminal Imaging Radar. (Predecessor to Ground-Based Radar Terminal (GBRT).) TIRS Telemetry, Instrumentation and Range Safety 5 }# a6 v q$ |4 S3 yTIS (1) Trusted Information Systems, Inc. (2) Technical Information System. $ m. V; Q) V$ c: _ u- Z& O# `# nTitan USICBM. % d% l4 c+ Q: l" [# ?TIU TIBS/Tactical Interface Unit. ; u' U( i5 S8 h# cTIWG Test Integration Working Group. (U.S. Army) TL Team Leader. ( L% Q" n1 }, f9 n' u: ~TLA Time Line Analysis. TLAM Theater land Attack Missile. TLAM/D TLAN [with submunition] Dispenser (Navy term). 7 E8 m7 Z" T$ |- I& l9 S- {TLDD Top Level Design Document. 7 p d- w6 O7 `# Q3 ^0 vTLV Target Launch Vehicle. TLX Teletype. TM (1) See Theater Missile. (2) Technical Manual. (3) Tactical Missile (US Army term). : V9 y" z# `3 b( k( E) @TMCC Test Monitor and Control Center. ! F2 @. w/ H- |& f& yTMD See Theater Missile Defense. TMD C2 Theater Missile Defense Command and Control. MDA GLOSSARY, VER. 4.0 T : B2 b* J6 |# c' [: N6 U# [( r* n301 6 Q0 t& i p) H3 z9 J% ?6 K. YTMD C 3 I Those assets that provide connectivity between and among Theater Ballistic Missile Defense forces. - R% @' d" R2 mTMD ESM Theater Missile Defense Existing System(s) Modification (MDA term). / K- C% M' m0 N, g1 x0 nTMD GBR See Theater Missile Defense Ground Based Radar (THAAD Radar). TMD IA Theater Missile Interoperability Architecture. TMD ITP TMD Integrated Test Plan. TMDAS Theater Missile Defense Architecture Study. - n+ t8 X; i7 t/ zTMDC Theater Missile Defense Council. 1 K- g' H& [+ M2 b* NTMDE Test Measurement and Diagnostic Equipment (ILS term). 0 b Z4 h+ j( ]% N2 R' t5 QTMDI See Theater Missile Defense Initiative. - r; U' e! A% Z4 VTMDSE Theater Missile Defense System Exerciser. ( G; N1 ^, A5 L/ ?- n4 n8 g7 u& vTMMM TOMAHAWK Multi-Mission Missile. . z. ] r& X8 |% w& VTMP Technical Manual Plan (ILS term). - x& [0 x# S3 T: S4 o$ z oTMPCU Tomahawk Theater Mission Planning Center Upgrade. 0 B: X8 t4 E" _ K5 S+ X4 s. Q' XTN (1) Terrestrial Network (C2E term). (2) Thermonuclear. 7 C6 i4 p0 ?% NTNF Theater Nuclear Forces [Treaty term]. TNT Trinitrotoluene. TNW Theater Nuclear Weapon. TO (1) Task Order. (2) Technical Order. / U9 S! R" e! mTOA Total Obligation Authority. : a) ~, s3 d& H% N i2 ITOAM Tactical Air Operations Module. TOC Tactical Operations Center. 4 `) K7 w/ H$ qTOE Table of Organization and Equipment. TOF Time of Flight. 5 m% y9 `9 n/ `& q6 |0 X. tTOI Track of Interest. 6 k. a; q0 t3 E* aTOIA Task Order Impact Analysis. ( [7 E; C( m# m4 h, U5 z# { B0 FTolerance The ability of a system to provide continuity of operation under various abnormal # e* Q7 u. [7 Y+ p9 uconditions. TOM See Target Object Map.

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Tomahawk US ground launched cruise missile. MDA GLOSSARY, VER. 4.0 T 302 TOMD Task Radar Management Details. TOMP Task Order Management Plan. ; Z+ l4 E$ F; i3 ?TOMS Total Ozone Mapping Spectrometer (NASA term). TOO Target of Opportunity. TOOL Target of Opportunity Launch. $ n( y) u4 C0 ]' L3 n1 UTOP Task Order Plan. . s# W: H) a1 X; X- DTop-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 " I) }# ^* R( @. C" o+ e) ODesign The process of designing a system by identifying its major components, " d5 {+ X/ j+ F1 _& Q6 `) b& c7 kdecomposing 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 technology to U.S. BMD applications. TOR Terms of Reference. 1 I# @9 E# Z! y+ w$ n PTOS (1) Tactical Operations Shelter (Station). (2) Task Order Status. TOT Time on Target Total Obligation Authority (TOA) + ~$ @- Z4 P6 C+ c* g/ TA DoD financial term, which expresses the value of the direct program for a given fiscal year. Total Quality Management (TQM) A management philosophy committed to a focus on continuous improvement to product and services with the involvement of the entire workforce. TOTS Target Oriented Tracking System TOVS TRIOS Operational Vertical Sounder. + D6 S1 r% e* m) U) S% FToxicity The kind and amount of poison or toxic produced by a microorganism, or possessed by a chemical substance not of biological origin. TP (1) Telenet Protocol (Telecomm/Computer term). (2) Test Program. TPALS Theater Protection Against Limited Strikes. TPBM Terminal Phase Battle Manager. 7 O1 b4 y" T- M4 m0 S+ kTPD Mobile Tactical Radar (US). ; @. ~; N6 L8 d* w( R/ @TPDR Total Processing Data Rate (TelComm/Computer term). . W8 D0 k- @0 l- VMDA GLOSSARY, VER. 4.0 T 303 : ^& E0 `2 G& \( ?/ a- kTPEC THAAD Performance Evaluation Center. TPEM Technology Program Element Manager (SDIO/MDA term). ; Y0 K1 x- o9 Q/ KTPFDD Time-Phased Force Deployment Data. TPFDDL Time-Phased Force Deployment Data List. * Y5 Q% Z+ L' E7 ATPFDL Time-Phased Force Deployment List. 9 ?4 r4 B( i. U1 h( B# @TPM Technical Performance Measurement. 8 @4 x6 O8 S* J# p6 lTPMT Total Preventative Maintenance Time (ILS term). TPO (1) Test Planning Organization. (2) THAAD Program Office TPP Test Procedure Plan. TPR (1) Terminal Phase Radar. (2) Trained Personnel Requirements. (3) Target / u# y, P' `$ ?* l+ uPerformance Report. TPS Thermal Protection System. TPT Theater Planning Tool. ' H$ w: ~- D- X0 I9 Q9 ATPWG Test Planning Working Group. (U.S. Air Force) 5 l0 F4 l6 J3 l& WTQM Total Quality Management. , y! \2 e6 O' w& w. uTraceability (1) The characteristic of software systems or designs or architectures or 3 }) r4 J X3 b9 Sdomain models that identifies and documents the derivation path (upward) and allocation/flowdown path (downward) of requirements and constraints. (2) The degree to which a relationship can be established between two or 5 [* T9 J6 R: c {, bmore products having a predecessor-successor or master-subordinate - T) C# C3 I% N9 g" [8 _% |+ `relationship to one another.

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Track (1) A series of related contacts displayed on a plotting board. (2) To display or record the successive positions of a moving object. (3) To lock onto a point of radiation and obtain guidance from. (4) To keep a gun properly aimed, or to point continuously a target locating instrument at a moving target. : v. N3 `" @6 t4 F(5) The actual path of an aircraft above, or a ship on, the surface of the ) y( N+ E7 @; x7 a7 X% ]" tearth. 3 k) d! g$ a7 h' m( R9 [ CTrack Assessment The Track Assessment looks for anomalies in an object’s track data. An anomaly 3 |; ^- y! ]( d/ d" I: T- }. Hin the track may indicate a hit. Track, Birth to Death The maintenance of an associated track through all phases of flight (i.e., boost to reentry). 7 I, {8 e4 }/ STrack Correlation The combining of track information for identification purposes, using all available 8 R- l, S; t# `) O$ W B7 {data. Track Extension This term usually applies to improvements in track estimates by use of new data. 7 c& t k6 f: z+ B; }5 J; fIt is sometimes used to describe a process of target extrapolation to a future time % ~: ]' u! U: W& wor place (e.g., reentry). MDA GLOSSARY, VER. 4.0 T 9 Y/ |6 C' j" N304 Track File A target’s stated estimate, confidence, covariance matrix, and associated LOS " c& Z; ^- W) s; Z/ s- u Z- F ameasurements with irradiances with confidence of association; or some subset of 9 t+ Q) h3 \/ f. ]the above. Track File-Track ; L j8 l0 G* ~" qHistory g- e( ]7 n: a4 EA set of individual track reports on a particular object, which taken together produce useful approximation of that object's future position in space. + r& c5 L$ M: J1 T9 k. c3 \$ |& C5 LTrack Formation The process of determining the track or tracks of detected objects. It is usually a 8 `( f9 B7 R5 gthree-step process of data association, track initialization, and track improvement 5 r. N( ] d* }# K; ?by filtering. 5 g9 c7 K9 M* H2 S( Y0 R' E8 JTracking The act of generating and maintaining a time history of an object's position and 8 c& A8 R& \: ]5 ^# Kany other features of interest. Tracking and 2 w3 N% M1 x" r. h, }" JPointing Once 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. ; {2 `% c+ c$ P8 \6 t4 b' ~Tracking Range (Max) The maximum line of sight distance at which a sensor can maintain track of an object. / r6 U3 ?, }0 p5 H0 {Track Initiation The formation of the first or initial estimate for a sensor system of the state vector of an object. The process typically requires observation from a number of 9 [8 ?, o- t* D( H! Sframes. Track Production / z2 P9 v, `1 p7 v* e0 ^5 \Area An area in which tracks are produced by one radar station. Track Symbology Symbols used to display tracks on a data console or other display device. ! N* ]7 w" i- o4 OTrack Telling The process of communicating air surveillance and tactical data information $ a# w: N1 V1 S; m! r& abetween command and control systems or between facilities within the systems. Telling may be classified into the following types: back tell; cross tell; forward tell; 0 {9 h; [6 Y5 G9 c4 p/ Q. tlateral tell; overlap tell; and relateral tell. & e0 r w2 ^1 B% x. FTRADEX Target Resolution and Discrimination Experiment. + t* |8 [) n7 ?" wTRADOC U.S. Army Training and Doctrine Command, Ft. Monroe, VA. ; T" k7 o$ f2 f. B" o2 _Traffic Capability % i8 N9 o, w9 V, p' w7 bMaximum 4 _7 k: t. ^4 C* S* B0 ^! A7 @The maximum number of objects per unit time which the sensor system can r) a2 }* e, P8 C0 Xmaintain track files. Traffic Decoy Decoy that matches RV characteristics in the exoatmosphere and high endoatmosphere. Train Threat geometry with objects placed in a line (string) along the velocity vector of reentry. Trajectory The curve described by an object moving through space. 0 o, u. \9 C! o0 b/ P1 }Trajectory 1 X1 U, z3 A$ P, ^5 r7 K7 bHistories 5 T0 u/ t h9 M t2 K/ N% E# f6 lTrajectory information on targets recorded over a period of time. - ^* ?+ C' H- U' Y3 f& R5 tTRAK A data base management system (not an acronym). Trans-Attack Period from first tactical indication of attack until termination started, i.e., postattack. MDA GLOSSARY, VER. 4.0 T ) H& @3 D" d2 k5 O4 V, u305 TRANSCOM [U.S.] Transportation Command, Scott AFB, IL. * O& z- v* M. w% F$ V- N# oTRANSEC Transmission Security. ! W# E2 {5 d& {$ v' |Transition The period in which the world strategic balance would shift from offensedominance to defense-dominance. Transition to * g8 {9 a0 N% g( \Production A risk reduction process during which the program shifts (passes) from development to production. It is not an exact point, but is described as a $ Y6 V) [5 X# ~- |3 C0 k* Eprocess consisting of disciplined engineering and logistics management to ensure the system is ready for manufacture. (See DoD 4245.7-M.) 6 o9 m3 m9 D: NTransmission " E/ r0 Q2 X, rSecurity 2 f1 g( c2 A: h3 U4 \. h- {) K(TRANSEC) That component of security, which results from all measures, designed to protect : R D- c5 M: I. y- c: p+ m- Gcommunications transmissions from interception and traffic analysis. (See 8 d& c0 b) ]$ O" P j5 j; oCOMSEC.)

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Transonic Of or pertaining to the speed of a body in a surrounding fluid when the relative speed of the fluid is subsonic in some places and supersonic in others. This is encountered when passing from subsonic to supersonic speeds and vice versa. Transponder A receiver-transmitter that will generate a reply signal upon proper interrogation. TRAP Tactical Receiver and Related Applications. Trap Door A hidden software or hardware mechanism that permits system security mechanisms to be circumvented. Traveling Wave Tube (TWT) # \. }8 _, k4 Q) e1 B4 nAn electronic tube in which a stream of electrons interact continuously or repeatedly with a guided electromagnetic wave moving substantially in 8 }; P) m/ Y- U# S0 ^' zsynchronism with it, in such a way that there is a net transfer of energy from the stream to the wave; the tube is used as an amplifier or oscillator at frequencies in the microwave region. 4 f- L& `5 h8 z1 dTraverse (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 " K1 i$ } E* }8 O) D* Kpoints on the earth are obtained by or from field measurements, and 6 h& I# }4 I4 R: ?4 T5 h+ {used in determining positions of the points. 4 n" E* u8 @) YTraverse Level That vertical displacement above low-level air defense systems, expressed both * K# `5 s; x! J% Qas a height and altitude, at which aircraft can cross the area. * H- \: j& z) \& ^TRB Tactical Review Board. TRD Technical Requirements Document. + @7 U. W1 J) B* E$ y4 y" @; iTRE Tactical Receive Equipment. $ d& Z9 t. i( _TREA Transmit/Receive Element Array (THAAD). $ X9 T& j4 b- @1 D- [2 r0 uTREE Transient Radiation Effects on Electronics. TREM Total Radiation Environment Model. TREPS See Thrusted Replicas. ) X' B4 K) d3 I( ~$ j3 GTRESIM Tactical Receive Equipment Simulator. 6 P% a) `( R& R3 D$ E5 K2 {$ C [MDA GLOSSARY, VER. 4.0 T + \) k% E: N/ ^) H306 + s! C% x+ y/ X/ {$ E% `TRG Threat Reference Guide. 3 k. `1 {5 o8 [# L! m2 KTRI-TAC Tri-Service Tactical Digital Communications System. ' [0 Q/ H! D6 ^9 B0 L) L9 B. UTRIDENT Class of US ballistic missile submarines (USN term). TRIDENT I (C-4) US SLBM (USN term). " e |, K- h" H7 @TRIDENT II (D-5) US SLBM (USN term). TRIM Toxic Reduction Investment and Management. , G1 l, M5 m8 E2 ?+ FTRM Technical Reference Model. 2 `( {$ p" {, U5 H" nTRMP Test Resources Management Plan. ' r3 @) F! K1 R5 K$ j6 @$ cTRN (1) Task Requirements Notice. (2) Test Requirements Notification. b$ s/ o C& w5 q6 B) O8 qTrojan Horse A computer program with an apparently or actually useful function that contains additional (hidden) functions that surreptitiously exploit the legitimate authorizations of the invoking process to the detriment of security or mission performance. TROPO Tropospheric Scatter. Tropopause The imaginary boundary layer dividing the stratosphere from the lower part of the atmosphere, the troposphere. The tropopause normally occurs at an altitude of : m3 b! j( _3 A% ^about 7.62km to 13.71km in polar and temperate zones, and at 16.76km in the tropics. (See Stratosphere, Troposphere.) / a7 ^" u1 u( v; _6 {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 altitude, clouds form, convection is active, and mixing is continuous and more or 4 y |+ |( h& Sless complete. Tropospheric & v% U, N0 D% N1 p9 ?Scatter The propagation of electromagnetic waves by scattering as a result of irregularities in the physical properties of the troposphere. & `3 V( V3 N3 r) c' ETRP (1) Test Readiness Program. (2) Technology Reinvestment Program. (3) Technology Readiness Program (pre-acquisition program status). % r6 A6 N( a6 Z% n! ](4) Technical Requirements Package. 1 f% g( i' M9 u0 u2 p" L) r4 ITRPC Technology Readiness Planning Committee. TRR Test Readiness Review. 7 e) i+ k/ y+ Y: `' f, ^8 qTrusted ' W, V- v, q3 f, ^. RComputer System/Software ( B! a# |7 Q$ v, qA system or its software that employs sufficient hardware and software integrity measures to allow its use for processing sensitive or classified information. ( Y p2 N" C$ X$ D( A: f; dTrusted Path A mechanism by which a person at a terminal can communicate directly with the . M' R: n S: g; T- _" {Trusted Computing Base. This mechanism can only be activated by the person * }& F0 h- P! T% y& sof the Trusted Computing Base and cannot be imitated by un-trusted software. TRW TRW, Inc. ' x' G Z- y( f/ [: o0 nTS (1) Terminal Service. (2) Top Secret. 4 \3 \, [; p5 i( n+ kMDA GLOSSARY, VER. 4.0 T 307 TSA Technology Security Analysis. ; k ?9 @: }0 v( n/ wTSD Tactical Surveillance Demonstration. TSCM Tomahawk Strike Coordination Module (USN term). : M) y. L! @' |. D4 v4 ?, mTSD Tactical Surveillance Demonstration. 6 Z9 S5 o/ G! L8 E9 hTSDE Tactical Surveillance Demonstration Enhancement. TSEU Technology Seeker Evaluation Unit. TsIAM Moscow’s Central Institute of Aviation Motors. TSM TRADOC System Manager. TSMA Theater of Strategic Military Action. 5 Y9 U2 p, J" s/ |- a% s5 _TSP Target Support Plan. TSPI Time, Space, Position Information. TSR Target System Requirements.

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TSRD Target System Requirements Document. TSS Terminal Surveillance Sensor. : X, I9 G0 ~, P9 m' L2 D2 ZTSSAM Tri-Service Standoff Attack Missile. 2 j* O: C8 `. X- n& E4 |0 DTSWG Target Signature Working Group. TT Total Time. . g" Q& Z2 |) YTT&C Telemetry, Tracking and Command. R! ^3 T; r8 o; d' sTT&E Technical Test and Evaluation (Army). , G' r& U( F3 q* W7 x+ QTTA Total Time Accounting. & W7 X1 a5 O! s7 rTTBM Terminal Tier Battle Manager. . q1 a3 t# m/ E. l2 dTTBT Threshold Test Ban Treaty. TTD&D Test Technology Development and Demonstration. A portion of the CTEIP ! w5 }/ @5 E( y' E. oprogram, which funds the development and demonstration of technologies, which have significant potential for improving testing. TTEL Tools and Test Equipment List (ILS term). # A0 B' v: r' o! u& ^6 PTTL Transistor-to-Transistor Logic. # n2 K* B$ |0 K3 N% vTTP Tactics, Techniques, and Procedures. TTSARB Technology Transfer and Security Assistance Review Board. TTT Test Technology Transfer. 7 W2 V' _: B K6 dMDA GLOSSARY, VER. 4.0 T 308 TTV Technology Test Vehicle. TTY Teletype. TUG TRACE User Group. ) Y* g! ]6 p( _TV Thrust Vectoring (rocker engineering term). TVC Thrust Vector Control. " x# r4 ~: l8 @3 ^ L8 |9 s( @TVE Technology Validation Experiment. 9 D* E+ H5 s' u2 R- j7 HTVM Track-via-Missile. TVV Technology Validation Experiment. TW Tactical Warning. TW/AA See Tactical Warning/Attack Assessment. TW/SD Tactical Warning and Space Defense. 1 W: {* n$ q* `5 x$ K3 p- {4 {2 ^TWG Technical Working Group. % z- z3 Q, Z' c6 }; ITWS TOMAHAWK Weapons System (USN term). TWT Traveling Wave Tube. 9 |/ |% Z0 q+ Z$ S2 HTWTA Traveling Wave Tube Amplifier. (Electronic Engineering term). ' ~; g; r& X1 x2 l" {" tTY Then Year (PPBS term). TY$M Then Year Dollars Millions. 4 g! m: D3 e4 ^! I, C; _9 }4 V$ |' EType A - System % A; P$ e" V, c$ u$ u* i1 c) BSpecification 1 A% _% }, [1 t s6 vStates all necessary requirements in terms of performance, including test provisions to assure that all requirements are achieved. Essential physical ( N0 N) [: P6 O0 _constraints are included. Type A specifications state the technical and mission requirements of the system as an entity. ! Q) G$ [) Y9 E% {4 \* lType B - . v% S, C. A8 GDevelopment + [. x. ]( b# T5 }# W9 DSpecification States all necessary requirements in terms of performance. Essential physical constraints are included. Type B specifications state requirements for the development of items other than systems. They specify all of the required item 9 W" t" y/ b7 z- d1 z$ B0 o/ _functional characteristics and the tests required to demonstrate achievement of those characteristics. Type C - Product 3 D: ^0 ~) v5 _8 ISpecification Product specifications are applicable to any item below the system level, and may be oriented toward procurement of a product through specification of 7 w* l7 ]/ D( o, \3 b- L( ?. _ @primarily function (performance) requirements or fabrication (detailed design) 9 s$ q1 H* j( `+ G- Orequirements. Type C specifications intended to be used for the procurement of - {! J* c9 D+ Y8 citems including computer programs. Typhoon Class of Soviet ballistic missile submarines. Typing The act of recognizing objects by measuring a set of observables, computing a 4 P" L! U2 {/ L; V2 x5 p1 a$ yset of characteristics, and associating the characteristics with a specific class of objects (i.e., SS-18, SS-24). MDA GLOSSARY, VER. 4.0 U 5 m) a- w: @# Y3 X309 : C) b4 e/ g9 u* mU Uranium. U&S Unified and Specified [commands] (pre-1996 term). ; O9 @* W4 Z# UU.K (UK) United Kingdom. $ e s3 U/ n: L5 z }) ^( }U.S. (US) United States. U.S. West U.S. West Incorporated. U.S.S.R. Union of Soviet Socialist Republics. UA User Assessment (NMD BMC3 term). UAE United Arab Emirates. UAV Unmanned Aerial Vehicle. # \$ o, }4 H8 ~! f0 B9 }3 I/ HUAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept. ' M; a# i4 l& C/ RUCAP UAV Combat Air Patrol. UCC Uniform Commercial Code (US legal term). UCP Unified Command Plan. ( z) E9 ?% V# P; |7 B! MUD/ASD United Defense/Armaments Systems Division. 9 R' J: Q5 K) n; b1 M) UUDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel). UDS Universal Documentation System. A standardized comprehensive tool for stating and coordinating program requirements for testing MRTFB ranges, as well as the capabilities and plans of test ranges to support program requirements. It consists of a series of six planning and execution documents: 10 are the . i- _4 A4 T& t, B) YProgram Introduction (PI) (also called the Program Introduction Document (PID)), 2) Statement of Capability (SC), 3) Program Requirements Document (PRD), 4) Operations Requirements (OR), 5) Program Support Plan (PSP), and 6) the Operations Directive (OD). The UDS was developed and is regulated by the + @, a* a% f ^0 T# q! T" wRange Commanders Council (RCC).

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UE Unit Equipment. 4 k# n% x/ O! g* Q" P, kUEME Unified Electro-Magnetic Effects. ( U4 |0 b! i, bUEWR Upgrade Early Warning Radar. UF4 Uranium tetra fluoride. 6 R# z& J/ r$ s a0 D* g- kUF6 Uranium hexafluoride. 0 o G2 R2 X5 r% g" @MDA GLOSSARY, VER. 4.0 U ) ?- k3 r4 ^) _8 N% o310 6 ^+ U( I6 l) }0 ~& P. ` q, wUFG User Focus Group. : U; F/ V" t7 Q1 ^UFO UHF Follow-On [Satellite Communications System]. UFP Unit Flyaway Price. # h: E8 S" A/ \* }' aUGF Underground Facility. 0 t3 G5 h" i8 @UGS Unattended Ground Sensors. UGT Under Ground Test. UHF Ultra High Frequency. ! v$ w" T/ X- Y2 @0 n! uUIC Unit Identification Code. ( {, W( E1 M7 M# I2 b& ^UIN User Interaction Node. ' V/ u+ w; \4 `+ M% dUKAS (1) UK Architecture Study (2) UK Associate Studies. UKEADTB UK Extended Air Defense Test Bed. . L' G T* V4 u( k. `% fUKTB United Kingdom Test Bed. ULCS Unit Level Circuit Switch (SINCGARS term). ULS Unit Level Switch. ULSA Ultra Low Sidebobe Antenna. ULTDS Unit Level Tactical Data Switch (SINCGARS term). 0 Z$ `# E1 N4 Q# C6 ~Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet % v# @/ s) |1 z6 H: t6 P, `4 i(about 3,850 Angstroms) and soft x-rays (about 100 Angstroms). ) e. _6 y' E( Z A# ZUMD Unit Manning Document. & @" h& k8 e3 D v& `UMMIPS Uniform Material Movement and Issue Priority System (ILS term). UNAAF Unified Action Armed Forces. UNC United Nations Command. Unconventional Warfare A broad spectrum of military and paramilitary operations conducted in enemyheld, enemy-controlled or politically sensitive territory. Unconventional warfare 5 }5 o& n# X' q7 [5 hincludes, but is not limited to, the interrelated fields of guerrilla warfare, evasion * C2 _' t+ ~- @; d+ aand escape, subversion, sabotage, and other operations of a low visibility, * `! h) S! e }. scovert, or clandestine nature. # e; @3 T9 I& R0 W5 t, tUnified Action ; M% i: C' r- r j- H* _# [Armed Forces 9 U) c( m% V& h8 o4 x% A3 o1 p7 W: |A publication setting forth the principles, doctrines, and functions governing the 5 `2 c& ^. `! A6 O* d' ]activities and performance of the Armed Forces of the United States when two or : H& _$ h# F' ^& o- E% j9 L8 ?' dmore Services or elements thereof are acting together. Unified Command A command with a broad continuing mission under a single commander and * M0 }# Y' Z4 Q* z* r$ ?composed of significant assigned components of two or more Services, and 7 \3 x9 R6 R+ L& f7 j2 u5 K; _which is established and so designated by the President, through the Secretary of Defense with the advice and assistance of the Joint Chiefs of Staff. MDA GLOSSARY, VER. 4.0 U 311 - C* G& c6 E0 {) YUNISYS UNISYS Corporation. United States Army . ~' {+ n/ m- TSpace Command ( n4 A3 h2 r- [(USARSPACE) The Army component command of USSPACECOM. Responsible for the Army 4 B( ?- v$ I) S* |7 x' {elements of the SDS system. Located in Colorado Springs, CO. United States : d1 N, |" e; u' N l. HSpace Command (USSPACECOM) 3 |2 _* [" \' V* s/ Q4 ]% k: Q7 XThe unified command responsible for planning and conducting ballistic missile * H$ d9 j3 s+ q! g$ odefense. Located in Colorado Springs, CO. / B6 }; b) `& j& aUnited States Strategic ( Q0 c( p4 c( r- zCommand (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. . q- ^ f$ I1 c4 j9 F. g% E k7 O1 cUnited States Transportation & M. W5 v& M6 r5 s# r0 o, [Command (USTRANSCOM) * j4 G* f) L8 } {5 F$ b* E) b5 U3 D, IThe DoD unified command responsible for providing air, land, and sea + |+ e& B( u k, s# D) Htransportation for the Department of Defense, both in time of peace and time of 3 G6 s& M8 T# o8 ]! Dwar. It is also responsible for providing airlift, sealift, surface transport, and 7 D- E' ^/ \. X% Iterminal services, and commercial air, land, and sea transportation, including as & t3 v9 ~$ ] g/ e8 Mneeded to support the deployment, employment, and sustainment of U.S. forces ! C& u0 B1 D% M. won a global basis, as directed by the Secretary of Defense. Located at Scott AFB, IL.

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Unk Unknown. Unresolved Objects ( H. @/ w* c2 B& Z. C( @, PObjects so closely spaced with respect to the sensor focal plane as to be indistinguishable from a single object. . B) H: |# ?* Q: m" q( M; Z" [1 vUNSC United Nations Security Council. UnSecEnergy Under Secretary of Energy. 7 q8 s: Z$ R# [+ a3 n" z2 NUOC Usable on Code (ILS term). ( B0 u# {5 d7 W* }UOES See User Operational Evaluation System. 3 z& ]; L, v$ ^* ]: eUPD Unconventional Passive Discrimination. UPS Uninterruptible Power Source. UQT Unit Qualification Training (ILS term). URIP University Research Initiative Support Program. ) H6 {, r+ m) e9 x5 dURL Uniform Resource Locator (internet protocol term). URT Upgraded RTD. US/UK United States/United Kingdom. USA (1) United States Army. (2) Under Secretary of the Army. : S1 U0 b8 w, ]# i0 _) lUSAADASCH U.S. Army Air Defense Artillery School. " ^% Q1 }% l A9 m) k! r9 jUSAAE U.S. Army Acquisition Executive. MDA GLOSSARY, VER. 4.0 U $ h9 H- V5 d% n1 F6 w5 ~312 7 [3 @& _+ z8 k$ C. ^+ mUSACE United States Army Corps of Engineers. ! x( f: t! g# Q% J5 kUSACOM United States Atlantic Command, Norfolk, VA. % {7 S1 w* L/ @* w# J8 ? aUSAF United States Air Force. USAF/AFMC/ESC U.S. Air Force Materiel Command, Electronic Systems Center; ex-ESD. USAF/AFMC/SMC U.S. Air Force Materiel Command, Space and Missile Systems Center; ex-USAF # @- k/ s% j, q QSystems Command /SSD. " f, f. {+ r2 s! q3 S0 Q3 vUSAF/OTEC U.S. Air Force Operational Test and Evaluation Center. ( X j3 [- R8 C( h( Q5 @9 G# o6 ]; tUSAF/SMC U.S. Air Fore Space and Missile Systems Center, Los Angeles AFB, CA. + s& B" Z% T' @' u9 b& D; x9 V- HUSAF/SSD U.S. Air Force/Space Systems Division; See USAF/AFMC/SMC. USAFE U.S. Air Forces in Europe. + [! \5 j% `& D3 e I3 wUSAFLANT U.S. Air Force, U.S. Atlantic Command. USAKA U.S. Army Kwajalein Atoll. 3 h S n" q" D: @1 c3 N! o8 q1 X( tUSAMICOM U.S. Army Missile Command, Redstone Arsenal, AL. ! G) W( C! |# E; [* fUSAMSIC See MSIC. & N) _) D# |6 q3 P$ T, M# u; V5 T# {3 eUSAMSAA U.S. Army Materiel Systems Analysis Activity. : m6 d/ l4 ? m# j; v. _. B; UUSAOEC U.S. Army Operational Evaluation Command, Alexandria, VA. USAOTEC U.S. Army Operational Test and Evaluation Command. + s. q, J/ a. w8 H3 G" K1 _) UUSARCENT U.S. Army Forces, U.S. Central Command. USAREUR U.S. Army Forces, U.S. European Command. " p' @- T& L& ^/ |USARLANT U.S. Army Forces, U.S. Atlantic Command. USARPAC U.S. Army Forces, U.S. Pacific Command. ) ?) L. I1 K( y% hUSARSPACE See United States Army Space Command. 4 D% U, p; v7 `/ e% a9 q$ H* IUSASDC U.S. Army Strategic Defense Command (<1Oct 92). 1 Q: A+ {4 Y F |, ^3 |- [% uUSASSDC U.S. Army Space and Strategic Defense Command, Huntsville, AL USATECOM U.S. Army Test and Evaluation Command. 8 V, X- {; V9 k3 |) W/ LUSATRADOC U.S. Army Training and Doctrine Command. USB Upgraded SBD. USC U.S. Code. USCENTAF U.S. Central Command Air Forces. : p+ ]) p% Z" m/ m% \, I4 J" aMDA GLOSSARY, VER. 4.0 U 313 USCENTCOM United States Central Command, MacDill AFB, FL. USCG United States Coast Guard. , Y, }# C. G' R; t9 }8 W* G+ JUSCINCCENT Commander in Chief, U.S. Central Command. USCINCEUR U.S. Commander in Chief, Europe. USCINCLANT Commander-in-Chief, U.S. Atlantic Command. USCINCPAC Commander-in-Chief, U.S. Pacific Command. 6 k" m5 A$ O& K7 R$ x* Z. n1 ?4 YUSCINCSPACE Commander-in-Chief, U.S. Space Command. 7 y5 T% r7 Y$ _% ^8 P. r8 y& HUSCINCTRANS Commander in Chief, U.S. Transportation Command. USCS U.S. Customs Services. USD Under Secretary of Defense. 9 \; u. X$ |1 v3 vUSD(A&T) Undersecretary of Defense (Acquisition and Technology). ; y" u- U/ w, ~! D& WUSD(A) OBSOLETE. Under Secretary of Defense (Acquisition.). USD(A)/STNF Under Secretary of Defense, Acquisition, Strategic and Tactical Nuclear Forces. # m }. F1 M3 {2 ?. g, ]USD(P) Under Secretary of Defense for Policy. * L1 M% `1 T* V) s; }% d+ U4 E( Y9 {USDA United States Department of Agriculture. ' b- g2 F, @/ i+ C" e. BUSDAO U.S. Defense Attaché Office. / I6 i* I" N2 rUSDELMC U.S. Delegation to the NATO Military Committee. USDR&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. 7 r. B [# w& SUser Operational 9 B( }" L0 j: Q/ {; }Evaluation 3 N4 D. }, Z% y6 y% {4 P! T0 E5 cSystem (UOES) Prototypical system developed and tested as part of the early phases of the 2 `! l0 \: I* G1 udevelopment process. A UOES has two objectives: (1) testing, evaluation, and R5 c! A$ C- Q: F% L6 Mtraining for a system proceeding through the normal acquisition process; and (2) ; I9 U! x2 y4 `' bcontingency defense capability should the need arise prior to completion of the normal acquisition cycle. USEUCOM United States European Command, Stuttgart-Vaihingen, Germany. ; N7 b9 c+ g- u2 N7 a4 t: l) d/ Y! QUSFJ U.S. Forces Japan. USFK U.S. Forces Korea. USFK/CFC CSFK Combined Forces Command. USG U.S. Government. " U/ T! K8 n+ {3 ~$ ]USIA United States Information Agency.

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MDA GLOSSARY, VER. 4.0 U ' c, R* T. w7 T m+ O: d314 USLANTCOM United States Atlantic Command (Now see USACOM). 5 S2 z5 A/ L# A# [5 hUSLANTFLT U.S. Atlantic Fleet. USMAR- . T& ^' q5 k; t$ u$ |# EFORCENT / q4 d+ E" g7 P) YU.S. Marine Component, U.S. Central Command. USMAR-FORLANT U.S. Marine Component, U.S. Atlantic Command. USMAR-FORPAC U.S. Marine Component, U.S. Pacific Command. USMC United States Marine Corps. USMCR United States Marine Corps Reserve. 7 r/ s6 t; Q( k: AUSMILREP U.S. Military Representative. - w* F8 N" S/ t- |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. USNO U.S. Naval Observatory. $ v" g& Z6 B c* yUSNPGS U.S. Naval Post-Graduate School. USPACAF U.S. Air Forces, U.S. Pacific Command. 3 t9 D2 e3 G8 I9 Q% rUSPACFLT US Pacific Fleet. 7 N! g2 L' Q NUSPACOM United States Pacific Command, Pearl Harbor, HI. * D% v! l5 Y' M; G1 aUSREPMC U.S. Representative to the Military Committee (NATO). USSC United States Space Command. USSOCOM United States Special Operations Command, Tampa, FL. USSOUTHCOM United States Southern Command, Panama Canal Zone, Panama. 9 z! |: ~" Q, i: PUSSPACECOM See United States Space Command. USSS United States Secret Service. USSTRATCOM See United States Strategic Command. USTA United States Telephone Association. USTRANSCOM See United States Transportation Command. 9 P# c) V1 ]! T2 y8 ^; V' `UT Universal Time. * _- b, E" }; ]& P: M. L) PUTC Unit Type Code. * `" c2 L8 W5 _4 pMDA GLOSSARY, VER. 4.0 U 315 UTM Universal Transverse Mercator. UTTMDS Upper Tier Theater Missile Defense System. See THAAD System. UUT Unit Under Test (ILS term). UV Ultraviolet. : T8 p7 o' l0 J) W gUV Electro- ; i& e+ G4 ^- I6 `( z7 ~ S$ J1 wOptics " E; [" v3 v2 _, WTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A). " w: h; h) i8 F/ FUVPI Ultraviolet Plume Instrument. 6 \0 H5 @0 ^1 D5 ^3 QUW Unconventional Warfare. ' t9 N6 a. L. w7 V5 SMDA GLOSSARY, VER. 4.0 V 316 V Volt. & U! V _% u& c# KV&H Vulnerability and Hardening. $ I u7 @9 `* L4 pV&V Verification and Validation. (See Verification, Validation, and IV&V.) V/STOL Vertical Short Takeoff and Landing [aircraft]. VAFB Vandenberg Air Force Base, CA. + f" |# i/ Y( q6 ? RValidation Confirmation that the processes and outputs from a test resource parallel real % K0 ]/ a J) K$ V$ d: e, ~$ Lworld processes and are realistically sensitive to change in the environment, 0 O. I S0 L9 z5 G* Q. `! P9 ^tactical situation, system design, tactics, and threat. VAMOSC Visibility and Management of O&S Costs. VAR Visitor Access Request. Variability The manner in which the probability of damage to a specific target decreases ; G. ~" M: V" ~2 X3 o% K/ Iwith 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. - ^, K% o. X7 q% Q. PVBO Vertical Burn-Out (velocity). , k2 m$ i8 _, V0 O% _2 B2 [5 wVCC Voice Communications Circuit. VCRM Verification Cross Reference Matrix. ) _; }' i; g) F0 t9 ~# PVCS Voice Communications System. ) k) E7 Z8 H& V* ~5 kVDC Volts Direct Current. 3 l1 \6 H* X; ?4 s* X0 u( I1 S) `) dVDD Version Description Document. VDU Visual Display Unit. - \& z# z: a8 V: m9 CVE Value Engineering. VECP Value Engineering Change Proposal. Verification (1) Confirmation that all data inputs, logic, calculations and engineering representations of a T&E resource accurately portray the characteristics, 7 B: H5 m) t" Q8 [+ ycalculations, logic, and interactions of the system under evaluation. (2) The process of evaluating a system or component during or at the end 8 k# C; x% G* q9 M6 N% a" ~' R2 Uof the development process to determine whether it satisfies specified requirements. VESA Video Electronics Standards Association. * i2 o/ r* T0 ?- J8 ~VFR Visual Flight Rules. - v. h2 ^% F0 x9 D. G8 W4 gVGA Video Graphics Array (Telecomm/Computer term). : u$ y" X. E: D aVHF Very High Frequency. VHSIC Very High Speed Integrated Circuit. MDA GLOSSARY, VER. 4.0 V 317 VIDS Vehicle Integrated Defense Software (USA term). 9 T$ `3 n# d" K4 h2 E- XVIGILANTE Viewing Image/Gimbaled Instrumentation Lab-Analog Neural Three-D Experiment. VIGILANTE involves building a small computer (ANTE) offering 1/12 Operation Per Second (OPS), using a mixture of experimental three-dimensional circuitry and commercial components. Project also demonstrates VIRGIL, a . c0 i* G7 A% S- Bgimbaled airborne sensor with visible, experimental UV and quantum-well IR cameras capable of tracking targets that can be detected, identified, and precision-tracked with the ANTE processor. ! y q- _0 o, {. C2 s3 w; IVIM Vibration Isolation Module. VINSON Encrypted Ultra High Frequency Communications System. VIS Visible. # |9 M' G: }2 U" P1 vVIS/UV Visible/Ultraviolet. 0 i( t$ w" }5 `% N) SVisibility Range (or Visibility) The horizontal distance (in kilometers or miles) at which a large dark object can + o# K, U9 e R9 Fjust 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 ' i1 ?/ e5 V: |% W6 A* Fexceptionally clear atmosphere to 0.6 mile (1.0 kilometer) or less for dense haze " u7 @! E; z1 ior fog. The visibility on an average clear day is taken to be 12 miles (19 kilometers). " q* h7 h7 C" @$ i9 n: uVisible Electro- [' e6 |* X) q, NOptics Technologies/techniques employed by optical sensors in the visible portion of / ~% G& Y: E" \0 lthe wavelength spectrum. ! x. z7 }( w7 c; [VLAR Vertical Launch and Recovery (UAV JPO term). 1 V6 O+ o; d$ s. I8 W6 d$ s( SVLF Very Low Frequency. VLOS Vertical Line of Sight.

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VLS Vertical Launch System. VLSI Very Large Scale Integration. VLSIC VLSI Circuits. ! ~! V* m2 E& W; ?VLWIR Very Long Wavelength Infrared. VME Versa Modular European [standards]. 2 W1 v( h+ b0 t# X, U7 gVMF Variable Message Format (Telecomm term). VOX Voice Actuation. VRI Vanguard Research, Inc., Fairfax, VA. VTC Video Teleconference. 3 d: z7 t7 Q( a' c% f$ @3 UVTOL Vertical Takeoff and Landing [aircraft]. 7 J* T8 Q1 `, {- H6 @* Z( x$ oVTOL-UAV Vertical Takeoff and Landing Unmanned Aerial Vehicle. & }" t0 @7 f$ ^, dVUE Visible Light/Ultraviolet Experiment. % Z! K: U9 F3 ?9 F+ _" \7 C' wMDA GLOSSARY, VER. 4.0 V & O9 E6 ]! ~ ]1 ]318 Vulcan UK bomber. # l( E6 e' i& S# [VV&A Verification, Validation, and Accreditation. 4 {7 A7 T5 H/ d3 FVVER Pressurized water type nuclear power reactor. VVIRF Verification and Validation Information Request Form. ( y ~1 F# P+ N3 t) |0 J2 Q$ [MDA GLOSSARY, VER. 4.0 W ~& {3 R5 q# ]7 Z/ g3 \6 F ?319 W/ With. % K2 X4 n9 }1 f( @, z+ _5 Ew/o Without. / [. z( f0 o: z7 t& c3 _: ^W/TD Warning/Threat Detection. + x0 a( L5 ]" y' _1 f- F2 H! mWAA Wide Aperture Array. WALEX Warfare Analysis Laboratory Exercise. WAM (1) Worldwide Military Command and Control System (WWMCCS). (2) Wide Area Munition. (3) Wide Area Mine. (4) Wide Area Missile. 4 F& _" D$ h# P9 g: D# Y/ K8 k ]WAN Wide Area Network (Telecomm/Computer term). WAP Wide Azimuth Probe. War Game A simulation, by whatever means, of a military operation involving two or more S+ {8 K/ X* X8 ?opposing forces, using rules, data, and procedures designed to depict an actual or assumed real life situation. Wargame 2000 Title of MDA program for development of a state-of-the-art simulation tool at the , D1 h6 p5 \- i+ d. bJNTF for use in CONOPS validation, missile defense program design verification, $ Z- N5 e$ x: o( U* l; M1 svalidation and accreditation, and support CinC/Allied wargames and assessments. Warhead A weapon, usually thermonuclear, contained as the payload of a missile. $ p2 q$ ] U! r7 I! O; u+ nWarhead Mating The act of attaching a warhead section to a rocket or missile body, torpedo, 3 d8 { ]% }' H( jairframe, motor, or guidance section. & I. M6 y+ l' M1 KWarhead Section A completely assembled warhead including appropriate skin sections and related components. * r; l3 C" d$ w: kWARM Wartime Reserve Modes. 3 P! G; F5 T/ Z5 KWarning of Attack A warning to national policymakers that an adversary is not only preparing its armed forces for war, but intends to launch an attack in the near future. Warning Order A preliminary notice of an order or action that is to follow. WARSIM Warfighter Simulation (US Army term). ) O6 q. K2 ~, G1 G: H; c3 iWARSIM 2000 Warfighter Simulation 2000 (US Army term). : [* ?8 h* p3 g! e2 T' V5 S+ EWartime Reserve Modes (WARM) 2 w% x7 m- {9 J! D6 dCharacteristics and operating procedures of sensor, communications, navigation # x6 d& O5 r) baids, threat recognition, weapons, and countermeasures systems that (1) will 5 z7 d9 k" n; L: H' K. u6 ycontribute to military effectiveness if unknown to or misunderstood by opposing commanders before they are used, but (2) could be exploited or neutralized if 7 w: }6 V- Z' G) d' }" o G" iknown in advance. Wartime reserve modes are deliberately held in reserve for $ r" }1 w5 V. i* m5 \6 Z+ ~( V, o3 O0 Cwartime 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 ' K" f. [- k, @! [5 a8 b p- rWASHDC Washington, District of Columbia. ; ?4 ] f \& a) ?: PWastage (Max) The maximum number of defense weapons which, when used, will be ineffective ! S* ^ p% l0 A. ^+ L Oin contributing to the defeat of the offense. / L0 j0 a# y) C: ^& XWatch Condition (WATCHCON) Series of readiness conditions used by the intelligence community to alert staffs to watchfulness without raising DEFCON. WATS Wide Area Telephone System. WAVE Wideband Angular Vibration Experiment. Wavelength The distance between two points having the same phase in two consecutive , i" B4 T. x9 M9 u2 N+ O: `/ R3 Ncycles of a periodic wave, along a line in the direction of propagation. & R: A% \* R- [9 z! A7 RWB Wideband. 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. . t) S2 J% e @2 O& s; y2 |" sWCS Weapons Control System. WDM Wavelength Division Multiplexon. Weapon Enabling The set of control functions without which defense weapons cannot be ' I% ]1 ~. g7 U, T* Z( R0 i) Olaunched.