BCU	brake control unit
BGD	Broadcast Group Delay
CAN	Controller Area Network
CCDIS	Crustal Dynamics Data Information System
CDF	cumulative distribution function
CDMA	code division multiple access
CNAV	civil navigation message
DCB	differential code bias
DOY	day of year
EKF	Extended Kalman Filter
ENU	east-north-up
ESC	electronic stability control
FLU	front-left-up
F/NAV	freely-accessible navigation message
GGTO	GPS to Galileo Time Offset
GNSS	global navigation satellite system
GPGA	GPS to Galileo time system correction
GPS	Global Positioning System
IF	ionosphere-free combination
IGS	International GNSS Service
IMU	inertial measurement unit
IONEX	Ionosphere Map Exchange Format
ISB	inter-system bias
ISC	inter-signal correction term
I/NAV	integrity navigation message
LNAV	legacy navigation message
MEMS	microelectromechanical systems
PDOP	position dilution of precision
PR	pseudo-range
rcv.	receiver
RINEX	Receiver Independent Exchange Format
RMS	root mean square
RTK	real-time kinematic positioning
SISRE	signal in space ranging error
std.	standard deviation
SV	space vehicle
TEC	total electron content
UEE	user equipment error
UERE	user equivalent range error