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. 2021 Nov 23;21(23):7794. doi: 10.3390/s21237794
AHRS Attitude and Heading Reference System
AMSL Above Mean Sea Level
BDS BeiDou Navigation Satellite System
CAN Controller Area Network
ENU East-North-Up coordinate system
FAO Food and Agriculture Organization
FMIS Farm Management Information Systems
GGA Format of essential position data sent via serial port
GLONASS Russia’s Global Navigation Satellite System
GNSS Global Navigation Satellite System (in general)
GPS United States’ Global Positioning System
INS Inertial Navigation System
LiDAR Light Detection and Ranging
MEMS Microelectromechanical Systems
MRA Measurement Robotic Arm
NMEA Serial communication standard used for GNSS output logging
NRTK Network Real Time Kinematic
NTRIP Networked Transport of RTCM via Internet Protocol
ppm Parts Per Million
PPP Precise Point Positioning
PPS Pulse Per Second
RMS Root Mean Square
RTCM Serial communication standard for RTK correction signal
RTK Real-time Kinematic
SBAS Satellite-based Augmentation Systems
SSR System’s ability to solve the problem of carrier phase ambiguity
UAV Unmanned Aerial Vehicle
UTC Coordinated Universal Time
VRS Virtual Reference Station
ACC Period when the trolley arm was accelerated
DEC Period when the trolley arm was braked
FIX Period of a known integer value of the carrier phase
FLOAT Period of known only in a decimal of carrier phase value
GNSS Period when the RTK receiver was not able to process the correction signal
STAT Period when the trolley did not move
UNIF Period when the trolley arm performed uniform movement