BDS	BeiDou navigation satellite system
CDF	Cumulative distribution function
CMN	Colored measurement noise
EKF	Extended Kalman filter
EnEKF	Ensemble extended Kalman filter
GPS	Global positioning system
GNSS	Global navigation satellite system
IMU	Inertial measurement unit
INS	Inertial navigation system
KF	Kalman filter
LiDAR	Light detection and ranging
LOS	Line-of-sight
LSTM	Long short-term memory
DC	Distance constraint
NLOS	Non-line-of-sight
PPP	Precise pointing positioning
RFID	Radiofrequency identification
R-T-S	Rauch-Tung-Striebel
RMSE	Root mean square error
UAV	Uncrewed aerial vehicles
UWB	Ultrawide Band
ZUPT	Zero velocity update