Accession Number : ADD013403

Title :   Precision Guided Antiaircraft Munition.

Descriptive Note : Patent, Filed 25 Jul 85, patented 7 Jul 87,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Hirschfeld, Tomas B

Report Date : 07 Jul 1987

Pagination or Media Count : 6

Abstract : A small diameter, 20 mm to 50 mm, guided projectile is used in antiaircraft defense. A pulsing laser designator illuminates the target aircraft. Energy reflected from the aircraft is received by the guided projectile. The guided projectile is fired from a standard weapon but the spinning caused by the riflings are removed before active tracking and guidance occurs. The received energy is focused by immersion optics onto a bridge cell. AC coupling and gating removes background and allows steering singles to move extended vanes by means of piezoelectric actuators in the rear of the guided projectile. (Author)

Descriptors :   *GUIDED PROJECTILES, *PATENTS, ACTUATORS, ALTERNATING CURRENT, ANTIAIRCRAFT AMMUNITION, ANTIAIRCRAFT DEFENSE SYSTEMS, CELLS, COUPLING(INTERACTION), GUIDED WEAPONS, LASER TARGET DESIGNATORS, PIEZOELECTRIC MATERIALS, PRECISION, STEERING, TARGETS, TRACKING, WEAPONS, LASER GUIDANCE, LIGHT HOMING, OPTICAL DETECTORS

Subject Categories : Ammunition and Explosives
      Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE