navigation acronyms, abbreviations and definitions - International ...
navigation acronyms, abbreviations and definitions - International ...
navigation acronyms, abbreviations and definitions - International ...
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SP St<strong>and</strong>ard Precision (GLONASS service)<br />
Accuracy 57-70 m hor <strong>and</strong> 70 m vert, vel 15 cm/s (99.7%).<br />
SPA Special Protection Area (EU Habitats & Bird Directives)<br />
SPAC Satellite Positioning Research <strong>and</strong> Application Centre (Japan)<br />
SPACE Seamless Positioning in All Conditions & Environments (Pinpoint proj)<br />
Nottingham University, Leeds University, Imperial College, University<br />
College London, EADS Astrium, CAA, Leica GeoSystems, Nottingham<br />
Scientific, OS, QinetiQ, BAE Systems, Thales.<br />
Space IGS Space Innovation <strong>and</strong> Growth Strategy (UK - 2010)<br />
Joint Government, industry <strong>and</strong> academia 20-year strategy for UK.<br />
SPACECOM US Space Comm<strong>and</strong> (Colorado Springs)<br />
SPAD signal passed at danger (railway)<br />
SPD speed (own (ship’s) speed in dead ahead direction)<br />
SPEED Support Platform for EGNOS Evolution <strong>and</strong> Development<br />
SpeedAlert EC (DG TREN) project to harmonise in-vehicle speed alert systems<br />
One-year project from May 2004.<br />
SPF Service Products Facility (Galileo)<br />
SPF single-point-failure<br />
SPI ship-port interface (IMO)<br />
SPI Surveillance Performance <strong>and</strong> Interoperability (EUROCONTROL)<br />
SPIRE Space Inertial Reference Equipment (US first airborne INS - 1953)<br />
SPL signal power level<br />
SPM single point mooring<br />
SPOC SAR Point of Contact<br />
Spoofing Broadcasting deliberately erroneous nav signals so receivers give<br />
the wrong position while appearing to be working correctly.<br />
SPOS Ship Performance Optimisation System<br />
SPOT Satellite Pour l'Observation de la Terre (GPS location messenger)<br />
SPRUC satellite positioning based road user charging<br />
SPS St<strong>and</strong>ard Positioning Service of GPS<br />
The service available to civilian users with a st<strong>and</strong>-alone receiver<br />
having access only to the C/A code <strong>and</strong> L1 carrier.<br />
Sps symbols per second<br />
SPWG Strategic Planning Working Group (IHO)<br />
SQ squalls (met)<br />
SQL Structured Query Language (for databases)<br />
SQM signal quality monitoring<br />
SQS Safety Quality Management <strong>and</strong> St<strong>and</strong>ardisation (EUROCONTROL)<br />
squawk to transmit via a transponder<br />
SQuID superconducting quantum interference device (microscopy)<br />
sr steradian (solid angle)<br />
SR1 small hail or snow pellets (met)<br />
127<br />
March 2012