method and device for the detection and tracking of objects in a relatively level ground

摘要

The localisation device of the invention, fixed to an aircraft, makes it possible to detect objects exhibiting at least one inclined face with respect to a flat, horizontal surrounding ground, and therefore exhibiting a contrast with respect to this ground. It includes a radar transceiver (18) with a rotating roll antenna (19) with wide pitch aperture and narrow roll aperture, associated with a range slot generator (21). Employing simple mathematical relations, the on-board computer (23), knowing the altitude (20) and roll (24) of the emitted beam, locates the said face, which, in the direction of the beam, exhibits a reflectivity appreciably greater than that of the ground. IMAGE