Apparatus for missile homing.

摘要

The invention concerns a device making it possible to determine coordinates giving the angular distance between the direction in which a missile (1) is located and a line of sight in which a target is situated. The device comprises means whereby an image may be projected on and moved over a linear sensor (11) so that the field of acquisition of the homing device has a cross-section through a plane perpendicular to the line of sight in the shape of a ring having a diameter corresponding to a large field aperture (10a) at the time when the missile (1) is launched: this is so that the missile (1) will be definitely intercepted by occurring in the field of acquisition. After that, the diameter of the ring is varied with time, so that the ring (10b) follows the missile (1) as it gets nearer the line of sight (o): the variation is produced by the action of a system of remote control or a beam riding system. Finally, the cross-section of the field is reduced to a simple disc (10c) corresponding to a field with a very small angular aperture: this ensures a more accurate location than conventional homing devices and produces a low probability of false alarms due to the sun or to chaff dropped by an enemy.
<??>Application to weapon systems.
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