초록 ▼

A method for rejecting inaccurate subimages is disclosed for subimages used to track an aimpoint. The difference between the actual location of each subimage and the location of the subimage based on an estimated aimpoint is compared to a threshold value. The subimage is discarded if the difference

A method for rejecting inaccurate subimages is disclosed for subimages used to track an aimpoint. The difference between the actual location of each subimage and the location of the subimage based on an estimated aimpoint is compared to a threshold value. The subimage is discarded if the difference exceeds the threshold value. The aimpoint may then be reestimated using the revised set of subimages.

대표청구항 ▼

A missile comprising: an aimpoint designator for establishing an aimpoint on a target; a sensor for periodically acquiring a set of subimages arbitrarily associated with the aimpoint; a normalized distance calculator responsive to the aimpoint designator and the sensor for calculating the distance b

A missile comprising: an aimpoint designator for establishing an aimpoint on a target; a sensor for periodically acquiring a set of subimages arbitrarily associated with the aimpoint; a normalized distance calculator responsive to the aimpoint designator and the sensor for calculating the distance between each subimage from a first set of subimages and from the established aimpoint; a processor coupled to the aimpoint designator, the sensor and the normalized distance calculator for periodically estimating and reestimating the subsequent location of the aimpoint and for estimating the location of a set of subimages, the estimated location of the aimpoint based upon a set of periodically acquired subimages and on the calculated normalized distances, the reestimated aimpoint based upon a subset of the set of subimages and upon the normalized distances, and the location of the set of subimages based upon the calculated normalized distances and upon the estimated aimpoint; and a comparator coupled to the processor for calculating a difference between the location of the periodically acquired subimages and of the estimated & subimages and for creating the subset of the subimages, the subset of subimages comprising those subimages whose difference did not exceed a threshold; memory coupled to the processor for storing the normalized distances; fins for guiding the missile responsive to the reestimated aimpoints; and a motor for propelling the missile.