Detecting roadway targets across radar beams by creating a filtered comprehensive image

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 method for filtering computed target positions of targets in a roadway across a plurality of beams of a radar system, the method comprising:
creating a comprehensive image of returns from the plurality of beams from a first detection period; creating a comprehensive image of returns from the plurality of beams from a second detection period; creating a filtered comprehensive image by filtering the comprehensive image from the second detection period using the comprehensive image from the first detection period; and detecting targets using the filtered comprehensive image.