Acronyms and Abbreviations
L
L CXR "L" Carrier Coaxial System ( e.g., Transcontinental Cable ) - also called LCXR
L-PUMA Littoral - Precision Underwater Mapping Array
L-V-C Live-Virtual-Constructive ( e.g., simulation )
L/d Length to Diameter Ratio ( CHAFF parameter )
LAAS Local Area Augmentation System ( GPS-related )
LACE Low Power Atmospheric Compensation Experiment
LADAR Laser Detection and Ranging ( i.e., laser radar )
LADS Life Assessment Detector System; Laser Area Defense System ( e.g., using a 20 kw IR laser in conjunction with a Phalanx shipboard defense system )
LAHAT Laser homing weapon system ( Germany )
LAIR Lamp-augmented Infrared
LAIRCM Large Aircraft InfraRed CounterMeasures
LALS Linkless Ammunition Loading System ( U. S. Navy )
LAM Land Attack Missile; Loitering Autonomous Munition; Loitering Attack Missile
LAMARS Large Amplitude Multi-mode Aerospace Research Simulator
LAMBDA Large Aperture Marine Basic Data Array
LAMBS Large Aircraft MultiBand Source
LAMD Lightweight Airborne Mine Detection
LAMIDS Lightweight Airborne Multispectral Mine Detection System
LAMP Large Advanced Mirror Program ( satellite laser ); Large Aperture Mirror Program; Learning Abilities Measurement Program; Low Angle MultiPath
LAMPS Light Airborne Multipurpose System
LANDSAT Land remote-sensing Satellite
LANNET Large Artificial Neuron Network
LANTIRN Low Altitude Navigation Targeting Infrared for Night ( System )
LAO Limited Attack Options ( e.g., SIOP - See also MAO, RNO, SAO )
LAPB Link Access Protocol, Balanced
LAR Launch Acceptability Region
LARC Laser Rangefinder Countermeasure
LARIAT Long-range Area Radar for Intrusion-detection And Tracking
LARS Learning and Recognition System
LAS Local Area Subsystem; Local Area Surveillance
LASAL Large Apreture Scanning Airborne LIDAR
LASER Light Amplification by Stimulated Emission of Radiation
LASG Large-Area Smoke Generator
LASH Littoral Airborne Sensor - Hyperspectral; Lighter Aboard SHip ( ship )
LASINT Laser Intelligence
LASM Land-Attack Standard Missile
LASS Low Altitude Surveillance System; Laser-Activated Silicon Switching
LATADS LAser TArgeted Decoy System
LATR Large Area Tracking Range ( e.g., missile range )
LAURA Low Altitude/Airspeed Unmanned Aircraft
LAV Light Armored Vehicle
LAVR Large Area Vulnerability Report
LAW Light Anti-tank Weapon; Land Attack Weapon; Light Anti-armor Weapon
LAWS Land Attack Weapon System
LBAU Low Band Antenna Unit
LBE Load Bearing Equipment ( e.g., for the infantryman )
LBHE Low Blast, High Exposure
LBI Long Baseline Interferometer
LBSS Low-Band Subsystem ( COMINT )
LBT Low Band Transmitter
LBV Load Bearing Vest ( e.g., infantryman assault vest )
LBVDS Lightweight Broadband Variable-Depth Sonar
LC Inductance-Capacitance; Line of Communication; Liquid Crystal; Line Charge ( explosive system ); Life Cycle; Limited Capability
LCA Life Cycle Assessment
LCAAS Low-Cost Autonomous Attack System ( Usually termed "LOCAAS" )
LCAC Landing Craft, Air Cushion
LCC Life Cycle Cost
LCCC Low-Cost Course Correction ( e.g., in small munitions guidance system )
LCCM Low Cost Competent Munitions ( U.S. Army )
LCCMD Low Cost Cruise Missile Defense
LCDM Low Collateral Damage Munitions
LCE&S Life-Cycle Engineering & Support
LCES Low-Cost Expendable Sensor ( e.g., small floating camera tethered to a submarine below periscope depth )
LCGR Launch Control Group Replacement
LCLO Low-Cost Low-Observable ( camouflage systems )
LCM Lightweight Communications Module
LCMS Laser Countermeasure System
LCN Local Computer Network
LCOS Liquid-Crystal-On-Silicon
LCPK Low Cost Precision Kill ( missile )
LCS Low Cost Seeker; Loop Control System; Low Cost Sonobuoy; Littoral Combat Ship
LCSS Life Cycle Software Support; Lightweight Camouflage Screening System
LCTI Low Cost Tactical Imager
LCXR "L" Carrier Coaxial System ( e.g., Transcontinental Cable ) - also called L CXR
LCU Lightweight Computer Unit
LD Low Density
LDAP Lightweight Directory Access Protocol
LDAR Lightning Detection and Ranging
LDAS Laser Detector and Analysis System
LDC Linear Demolition Charge ( e.g., used to clear paths through minefields and obstacles )
LDGPS Local/area Differential Global Positioning System
LDHD Low-Density, High-Demand
LDI Long-Dwell Imager ( satellite ); Laser Direct Imaging ( e.g., for NVDs )
LDMX Local Digital Message Exchange ( Navy )
LDR Low Data Rate ( e.g., multiple bandwidth communications waveforms )
LDS Laser Dazzle Sight; Leaflet Delivery System
LDTOC Light Digital Tactical Operations Center
LEA Law Enforcement Authority
LEAD Launched Expendable Acoustic Decoy; Launched Expendable Acoustic Device
LEAM Lunar Ejecta and Meteorites ( e.g., NASA Lunar experiment )
LEAP Lightweight Exo-Atmospheric Projectile; Leading-Edge Advanced Packages
LEASAT Leased Satellite
LECIP Life Extension and Capabilities Improvement Program ( Portuguese Navy )
LEDET Law-Enforcement Detachment ( e.g., drug interdiction )
LEDS Land Electronic Defensive System
LELFAS Long-Endurance Low Frequency Acoustic Source
LENSCE Limited Enemy Situation Correlation Element ( data fusion )
LEO Low Earth Orbit ( typical altitude < 2000 km ); Law Enforcement On-line
LEP Laser Eye Protection ( e.g., anti-laser contact lenses )
LER Laser Event Recorder ( aviator's instant warning about potentially eye-hazardous laser activity )
LET Linear Energy Transfer ( threshold ); Limited Effects Technology ( e.g., nonlethal weapons ); Logistic Escape Trunk ( e.g., on a submarine )
LEWC Local Electronic Warfare Coordinator
LEWK Low-cost EW Killer; Loitering EW Killer
LF Low Frequency ( 30 - 300 kHz ); Line Feed
LFA Low Frequency Active ( sonar ); Local Feature Analysis ( Biometrics facial recognition technology ); Lead Federal Agency
LFAPS Low Frequency Active Passive Sonar
LFM Linear Frequency Modulation
LFMS Low Frequency Measurement System ( used for radar cross-section measurement )
LFORM Landing Force Material
LFT Live Fire Test; Liquid Flow-Through ( cooling )
LFT&E Live Fire Test & Evaluation
LFX Live Fire eXercise
LGSM Light Ground Station Module
LH Light Helicopter
LHCP Left-Hand Circular Polarization
LHFT Light Helicopter Fire Team
LHGXA Lightweight High-Gain X-band Antenna ( Army )
LHR Low Hop Rate
LHT Lightweight Hybrid Torpedo
LHX Family of Light Helicopters ( Army )
LIC Low Intensity Conflict ( Being replaced by CALO; see also CALOW )
LID Laser IRCM Development ( e.g., range )
LIDAR Light Detection and Ranging; Light Imaging Detection and Ranging; Laser Illumination Detection and Ranging
LIDD LIghtweight Disposable Disrupter
LIFE Large Aircraft ( infrared ) Flyout Experiment; Laser Infrared Flyout Experiment
LIFO Last-In-First-Out
LIFT Lead-In Fighter Trainer
LightSAR Lightweight Synthetic Aperture Radar
LIGO Laser Interferometer Gravitational-wave Observatory
LIM Live Insertion Module; Lotus-Intel-Microsoft ( extended memory system )
LIMAWS(R) Lightweight Mobile Artillery System (Rocket) ( U.K. )
LINEAR Lincoln Near Earth Asteroid Research ( program for hunting asteroids )
LIO Leadership Interdiction Operations ( e.g., special operations )
LIPC Laser Induced Plasma Channel
LISI Level of Information System Interoperability
LISN Line Impedance Stabilization Network
LISP List Processing ( A programming language used in artificial intelligence )
LITE Laptop Image Transmission Equipment; Lightweight Integrated Telecommunications Equipment
LITINT Literature Intelligence
LIWA Land Information Warfare Activity
LKT LooKThrough
LL Low Level
LLAPI Low Level Air Picture Information ( system ) ( NATO ); Low Level Air Picture Interface
LLD Light Landing Device
LLDR Lightweight Laser Designator Rangefinder
LLL Low Light Level ( as in "LLL TV" )
LLLGB Launch and Leave Low-level Guided Bomb
LLOC Local L Order Circuit
LME Liquid Metal Embrittlement
LMISPE Little Monopulse Information Signal Processing Element ( system )
LMR Land Mobile Radio
LMRDFS Lightweight Man-transportable Radio Direction Finding System
LMRS Long-term Mine Reconnaissance System
LMS Learning Management System
LMSR Large Medium-Speed RO/RO ( Roll-on/roll-off ship )
LMST Lightweight Multiband Satellite communications Terminal
LMT Large Millimeter wave Telescope
LMU Location Monitoring Unit ( See LMU Antenna )
LMW Littoral and Mine Warfare
LNA Low Noise Amplifier
LNB Low Noise Block
LNS Logarithmic Number System ( algorithm ) [ also EFP ]
LO Low Observable; Local Oscillator; Lock-On
LOAL Lock-on After Launch
LOB Line of Bearing ( See also AOA )
LOBL Lock-on Before Launch
LOC Line Of Communication
LOCA Location ( of an emitted signal ) on the Conic Axis
LOCAAS Low Cost Anti-Armor Submunition; Low-Cost Autonomous Attack System
LOCAITS Low Cost Airborne Interim Tracking System
LOCE Limited Operational Capability Europe ( data fusion ); Linked Operations intelligence Centers Europe ( NATO )
LOCM Low Observable Cruise Missile
LOWCUSP Low Cost Uncooled Sensor Program ( DARPA )
LOD Launch on Demand; Level of Detail
LODE Large Optics Demonstration Experiment
LOE Level Of Effort; Light-Off Examination; Limited Object Experiment; Limited Objective Experiment
LOF Lowest Operating Frequency
LOFAR Low Frequency Analysis; Low Frequency ARray
LogC2 Logistics Command and Control
LOGAIS Logistics Automated Information System
LOGIIC Linking the Oil & Gas Industry to Improve Cyber [ Security ]
LOIS Laser Ordnance Initiation System
LOP Line Of Position ( in navigation )
LOR Level of Repair; Likely Operational Range ( of a missile )
LORA Level of Repair Analysis
LORO Lobe on Receive Only
LOROC LOng Range Offboard Countermeasures ( chaff decoy )
LOROPS Long Range Oblique Photography System; Long Range Oblique Photography Sensor
LOS Line of Sight; Launch on Schedule
LOS-F-H Line of Sight Forward, Heavy ( system )
LOS-R Line of Sight, Rear ( system )
LOSAT Line-of-Sight Anti-Tank ( weapon )
LOSIR Line Of Sight Infrared ( e.g., for tactical communications )
LOSREP Loss Report ( personnel or aircraft )
LOST Law Of the Sea Treaty
LOT Lockout Trunk ( e.g., on a submarine )
LOTAB Life Of The Airframe Battery
LOTE Life-Of-Type Extension ( for acquisition programs )
LOTS Logistics Over Shore ( amphibious system )
LOV Locus Of Values ( held dear by an adversary ); Light Operational Vehicle
LOW Launch On Warning ( e.g., SIOP - See also LUA )
LOX Liquid Oxygen
LP Linear Programming; Low Pressure
LPAR Large Phased-Array Radar
LPC Linear Predictive Coding ( data processing )
LPD Low Probability of Detection; Linear Power Density
LPE Low Probability of Exploitation
LP-FM Low Power Frequency Modulation
LPI Low Probability Intercept; Low Probability of Intercept
LPID Low Probability of Identification ( e.g., radar )
LPIR Low Probability of Intercept Radar
LPP lASER-Produced Plasma ( e.g., plasma source for transistor lithography systems - see also DPP )
LPRF Low Pulse Repetition Frequency
LPS Local Positioning System; Logistics Prepositioning Ship
LPT Line PrinTer ( e.g., "LPT1 printer port" ); Logistic Plug Trunk ( e.g., on a submarine )
LPU Limited Procurement Urgent
L-PUMA Littoral - Precision Underwater Mapping Array
LQM Link Quality Monitor
LRA Local Registration Agent ( e.g., in DoD Public Key Infrastructure (PKI) program - ca 2005 )
LRAD Long-Range Acoustic Device ( e.g., Protective device - 150 db "bangs" to deter attackers of large ships )
LRAP Long Range Land Attack Projectile
LRAS3 Long-Range Advanced Scout Surveillance System
LRCR Long Range Countermeasures Rocket; Long Range Chaff Rocket ( Australia )
LRCSW Long Range Conventional Standoff Weapon
LRE Launch and Recovery Element
LRF Laser Range Finder
LRI Limited Range Intercept; Long Range Interceptor ( e.g., boat carried on USCG Maritime Security Cutter )
LRIP Low Rate Initial Production
LRIT Long-Range Identification and Tracking System ( e.g., for tracking merchant ships )
LRLAP Long-Range Land-Attack Projectile
LRM Line Replaceable Module
LRMTS Laser Ranger and Marked Target Seeker ( U.K. )
LRR Least Resistance Routing ( networks )
LRRP Long Range Reconnaissance Patrol
LRS Littoral Remote Sensing; Laser Radiometer System
LRS&T Long-Range Surveillance and Track ( e.g., ship SPY-1 system, ca 2003 )
LRST Laser Range Safety Tool ( computer simulation for range safety in HEL reflection hazard analyses )
LRTP Local Radar Track Processor
LRU Line Replaceable Unit
LS Landing System
LSAH Laser Semi-Active Homing
LSAR Logistic Support Analysis Record
LSB Least Significant Bit; Lower Sideband
LSEOS Lightweight Shipboard Electro-Optical Surveillance ( system, circa 1980 ); Lightweight Shipboard Electro-Optical fire control and Surveillance ( circa 2005 )
LSI Large Scale Integration; Lead System Integrator ( e.g., among contractors )
LSRS Language and Speaker Recognition System
LSS Littoral Surveillance System
LSTAT Life Support for Trauma and Transport ( litter )
LSTP Linear Search/Track Processor
LSV Large Scale Vehicle (e.g., unmanned submarine)
LSVR Logistic Vehicle System Replacement ( program )
LT Look-Through; Line Telecommunications; Laptop (computer); Light; Lieutenant
LTA Lighter-Than-Air; Light Transport Aircraft
LTC Long Time Constant
LTD Laser Target Designation; Laser Target Designator
LTD/R Laser Target Designator/Ranger
LTDS Light-Duty Twin Sweep (minesweeping)
LTE Low-cost Training Equipment (as in RWR-LTE)
LTH Light Towed Howitzer
LTL Less-than-lethal
LTM Laser Trapped Mirror ( e.g., for space telescope )
LTO Linear Tape Open (tape format)
LTWS Lightweight Thermal Weapon Sight
LTWTA Linear Traveling Wave Tube Amplifier
LUA Launch Under Attack (e.g., SIOP - See also LOW)
LUF Lowest Usable Frequency
LUH Light Utility Helicopter ( South Africa )
LUHF Lowest Usable High Frequency
LUT Limited User Test; Look-Up Table ( e.g., in digital-to-analog converters )
L-V-C Live-Virtual-Constructive ( e.g., simulation )
LVDS Low Voltage Differential Signaling ( ASIC circuitry )
LVIS Laser Vegetation Imaging Sensor
LVOSS Light Vehicle Obscuration Smoke System
LVP Low Voltage Protection
LVPS Low Voltage Power Supply
LVRS Lightweight Video Reconnaissance System
LVSR Logistics Vehicle System Replacement
LVT Low Volume Terminal ( e.g., for data links - also known as MIDS/LVT )
LW Limited War (Level of Conflict); Land Warrior ( system )
LWAB Lightweight Assault Boat
LWD™ Littoral Warfare Data
LWR Laser Warning Receiver
LWIM Low-power Wireless Integrated Microsensor
LWIR Long Wavelength Infrared; Long Wave Infrared
LWPDD LightWeight Personal Detection Device
LWR Laser Warning Receiver
LWRS Laser Warning Receiver System
LWS Laser Warning System; Local Warning Segment ( e.g., of GBAD )
LWS-CV Laser Warning System for Combat Vehicles
LWT Light-Weight Torpedo
LXI LAN Extensions for Instrumentation
LZ Landing Zone
March 07, 2008 02:49 PM -0500