Common Abbreviations¶
ACC |
Accelerometer |
AHRS |
Attitude Heading Reference System |
ALT |
Altitude |
ATC |
Attitude Control |
AP |
ArduPilot |
APM |
ArduPilot autopilot |
ARSPD |
AirSpeed |
ATT |
Attitude |
BATT |
Battery |
CTUN |
Control Tuning |
DCM |
Discrete Cosine Matrix (first generation position/attitude estimator) |
EKF |
Extended Kalman Filter (a predictive filter subsystem) |
EK2/3 |
EKF2/EKF3 (ArduPilot has two generations of EKF based position/attitude estimators in the firmware) |
GCS |
Ground Control Station |
GPS |
Global Positioning System |
GYRO |
Gyroscope |
IMU |
Inertial Measurement Unit |
INS |
Inertial Navigation System |
PCS |
Position Control System |
PM |
Power Module |
RC |
Radio Control |
TECS |
Total Energy Control System (altitude/speed controller for Plane) |
WP |
Waypoint |