| 摘要 |
<p>An operating method of a system for the precision localization of a target (2) present on the ground without the aid of a laser range-finder device is described. The method comprises the phases of : calculating, in two successive moments in time (tl,t2) during the flight of an aircraft (3) along a rectilinear flight segment, two points of intersection (Pl (i),P2 (i) ) between a tracking axis (A) of a camera (5) mounted on the aircraft (3) and a theoretical plane (PTi) associated with the ground and having.a preset initial altitude (QTi), repeatedly varying the altitude (QTi) of the theoretical plane (PTi) by a preset value (?QTi) and calculating the position of the two points of intersection (Pl (i),P2 (i) ) on the same theoretical plane (PTi) at each variation in altitude (?QTi) of the theoretical plane (PTi), until a condition of precision localization is achieved, which is satisfied when the distance (Dx) between the two points of intersection (Pl (i), P2 (i) ) has a minimum value less than a preset threshold (SX).</p> |
