Detecting roadway targets across beams

摘要

The present invention extends to methods, systems, and computer program products for detecting targets across beams at roadway intersections. Embodiments of the invention include tracking a target across a plurality of beams of a multiple beam radar system in a roadway intersection and updating track files for targets within a roadway intersection. Returns from a plurality of radar beams monitoring a roadway intersection are divided into range bins. Identified energy in the range bins is used to compute the position of targets within a roadway intersection. When the position of a target is computed, it is determined if the position is a new position for an existing target or if the position is the position of a new target.

主权项

1. A traffic sensor for monitoring a roadway, the traffic sensor comprising:
a radar system including a plurality of beams and configured to transmit signals into a roadway and to receive reflections of signals off of objects in the roadway using the plurality of beams; a target identifying module configured to:
divide received reflections of signals into a plurality of range bins;compute a position of at least one target in the roadway based on at least one received reflection and at least one corresponding range bin;andcreate a track file for the at least one target in the roadway.