Wire and pylon classification based on trajectory tracking

A trajectory tracking system for a radar mounted on a moving platform, the system comprising:

• a set of dynamic models, one per expected stationary obstacle type, of an expected apparent trajectory of a point of normal incidence (PNI) per expected stationary obstacle, said stationary obstacle types comprising at least wires, pylons, and clutter, and said apparent trajectory due to motion of said radar towards said expected stationary obstacle;
• a trajectory database to store apparent trajectories for a current set of obstacles being tracked;
• a trajectory handler at least to associate incoming detections to existing apparent trajectories and to update said existing apparent trajectories;
• a parameter extractor to periodically extract parameters from said apparent trajectories;
• and
• a classifier to classify stationary obstacles associated with said apparent trajectories at least based on said parameters of said trajectories and on associated said dynamic models for said apparent trajectories.