Fig. 5
From: Outdoor location tracking of mobile devices in cellular networks
GPS trajectories in a rural area and on the highway between Antwerp and Ghent (black lines), estimated positions (blue dots), error between estimation and ground truth (blue lines), and NodeBs (gray triangles). aTrajectory on foot (rural + standby). b Trajectory by bike (rural + standby). c Trajectory by car (rural + standby). d Trajectory by car (highway + standby)