Target approach aiming system for pilotless aircraft - generates scaled images and compares with actual scene for compensation for final approach

摘要

The target approach control system is used for automatically steering a missiel. The target image is processed by an electronic system generating steering signals by cross correlation between the actual scene and the stored images. The steadily increasing size of the target area or image does not cause loss of accuracy on final approach. During the approach flight each sensed image is correlated simultaneously with two stored target images, respecting the target area on smaller and larger scales than the actual image. The total deviation is computed by weighting of the deviation signals of each correlation result with a function of the associated correlation max. values.