Glossary

5G 5th Generation mobile communication system
ABAS Aircraft Based Augmentation System (with GNSS)
AGPS Assisted GPS
AGNSS Assisted GNSS
AI Artifitial Intelligence
App Application (as software)
ARAIM Advance RAIM
BDS BeiDou navigation satellite System (China)
BLE Bluetooth Low Energy
CORS Continuously Operating Reference Station
DGPS Differential GPS
eLORAN enhanced LORAN
EUPOS EUropean POsitioning determination system
GBAS Ground Based Augmentation System (with GNSS)
GLONASS GLObal’naya NAvigatsionnaya Sputnikovaya Sistema (Russian Federation)
GEONET GNSS Earth Observation NETwork system (Japan)
GNSS Global Navigation Satellite System
GPS Global Positioing System (U.S.A.)
INS Inertial Navigation System, Inertial Navigation Set
IMU Inertial Measurement Unit
IoT Internet Of Things
IRNSS Indian Regional Navigation Satellite System
ITRF International Terrestrial Reference Frame
JGD Japanese Geodetic Datum
LIDAR LIght Detection And Ranging, Laser Imageing Detection And Ranging
LORAN LOng-RAnge Navigation
MADOCA Multi-GNSS Advanced Demonstration tool for Orbit and Clock Analysis
M2M Machine To Machine
MMS Magnetospheric Multi-Scale mission
NAVIC NAVigation with Indian Constellation (India)
NRTK Network RTK (GNSS) positioning
OS Operating System (on a computer)
PDR Pedestrian Dead Reckoning
PNT Positioning, Navigation, and Timing
PPP Precise Point Positioning (with GNSS)
QZSS Quasi-Zenith Satellite System (Japan)
RAIM Receiver Autonomous Integrity Monitoring
RSSI Receiver Signal-Strength Indication
RTK Real-Time Kinematic (GNSS) positioning
SBAS Satellite Based Augmentation System (with GNSS)
SDR Software Defined (GNSS) Receiver
SSR State Space Representation
SSV Space Service Volume
TASS TDRSS Augmentation Satellite Service
TDRSS Tracking and Data Relay Satellite System
WGS World Geodetic System
WiFi Wireless Fidelity