METHOD FOR DETECTING, OVER SEVERAL ANTENNA REVOLUTIONS, SLOW-MOVING TARGETS BURIED IN THE RADAR CLUTTER, USING A MOBILE RADAR HAVING A ROTARY ANTENNA

摘要

The present invention relates to a method for detecting targets using a mobile radar having a rotary antenna, particularly small targets buried in the radar clutter, without increasing the number of false detections. The method comprises a step of determining pre-detections over N antenna revolutions, said step including a step of determining pre-detections revolution by revolution, each pre-detection being stored in a grid of cells which is centered on the position occupied by the radar at the beginning of the current revolution, each cell of the grid corresponding to a azimuth range and a distance range. This step also includes, at the end of each revolution, a step consisting of shifting all of the pre-detections stored in the grid during the preceding revolutions by the movement of the radar during the last revolution. The method also comprises a step consisting of determining detections, a target being detected when the distances, on the radar, of a set of pre-detections stored in the grid constitute a linear progression during the N antenna revolutions.