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Title: Precision guided antiaircraft munition

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 spining 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 signals to move extended vanes by means of piezoelectric actuators in the rear of the guided projectile.

Inventors:
 [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866299
Patent Number(s):
4678142
Assignee:
United States of America as represented by Secretary of Air (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F42 - AMMUNITION F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
F - MECHANICAL ENGINEERING F41 - WEAPONS F41G - WEAPON SIGHTS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
precision; guided; antiaircraft; munition; diameter; 20; 50; projectile; defense; pulsing; laser; designator; illuminates; target; aircraft; energy; reflected; received; fired; standard; weapon; spining; caused; riflings; removed; active; tracking; guidance; occurs; focused; immersion; optics; bridge; cell; coupling; gating; removes; background; allows; steering; signals; move; extended; vanes; means; piezoelectric; actuators; rear; energy reflected; guided projectile; /244/

Citation Formats

Hirschfeld, Tomas B. Precision guided antiaircraft munition. United States: N. p., 1987. Web.
Hirschfeld, Tomas B. Precision guided antiaircraft munition. United States.
Hirschfeld, Tomas B. Thu . "Precision guided antiaircraft munition". United States. https://www.osti.gov/servlets/purl/866299.
@article{osti_866299,
title = {Precision guided antiaircraft munition},
author = {Hirschfeld, Tomas B},
abstractNote = {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 spining 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 signals to move extended vanes by means of piezoelectric actuators in the rear of the guided projectile.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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