navigation acronyms, abbreviations and definitions - International ...

SISMA signal-in-space monitoring accuracy
SISNeT Signal-In-Space through the interNeT (ESA project for EGNOS)
SIU secure interface unit
SiVSG Silicon Vibrating Structure Gyro (BAe)
SKC sky clear (met)
SKYCONTROL ATCOs’ union in Switzerland
sl (s/l) sea level
SL step length
SLA Service Level Agreement (eg for Galileo)
SLD styled layer descriptors (ofWMS)
SLD superfluorescent laser diode
SLR satellite laser ranging (now called SGF)
SLS Satellite Landing System
SLV solar light vessel
SMAC Scene-Matching & Area Correlation (System)
SMAG Spectrum Management Advisory Group (RA NDPB)
SMART Self-Managed Arrival Resequencing Tool (MITRE for FAA)
SMART Summing Multiple Artificial Radio Transmitters Trigonometrically
A VBM Fourier technique for simulating multiple GPS jammers.
SMarT Support for Maritime Training Scheme (UK)
Smartnav In-vehicle satnav using Trafficmaster
SmartNet Uses NRTK with 142 CORS in UK & Ireland (2008)
SMC Safety Management Certificate (ISM Code)
SMC Space and Missiles Center (USAF)
SMD smart mobile device
SME small and medium-sized enterprise(s)
SMEF System Management & Engineering Facility (LSU)
SMF separation monitoring function (ATC)
SMG speed made good (speed (of ship) between 2 fixes)
SMGCS Surface Movement Guidance & Control System (for airfields)
SMI small and medium-sized industries
SMLC serving mobile location centre
GSM network centre that handles the location for handsets.
SMLC summer mountain leader certificate
SMO spectrum management organisation
SMRS surface movement radar system (airfields)
SMS safety management system
SMS Short Message Service (brief text messages over mobile phones)
SN snow (met)
SNAFU situation normal: all fouled up (this is the polite version . .)
SNAG Satellite Navigation Applications Group (EUROCONTROL)
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