Commonly Used Acronyms

Here is a table of some of the acronyms used in this documentation, along with the words they stand for.

Acronym	Meaning
DCM	Direction Cosine Matrix
ECEF	Earth Centered Earth Fixed
FOGM	First-Order Gauss-Markov
GPS	Global Positioning System
GNSS	Global Navigation Satellite System
ENU	East North Up
HAE	Height Above Ellipsoid
IMU	Inertial Measurement Unit
INS	Inertial Navigation System
LLA	Latitude Longitude Altitude
LLH	Latitude Longitude Height
MP	MeasurementProcessor
MSL	Mean Sea Level
NED	North East Down
PRN	Pseudo Random Number
PVA	Position Velocity Attitude
RPY	Roll Pitch Yaw
SB	StateBlock
SV	Space Vehicle
VSB	Virtual State Block