초록 ▼

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 th

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.

대표청구항 ▼

A guided projectile for use in an antiaircraft gun, a target aircraft being illuminated by a pulsing laser designator for said guided projectile to home upon, said guided projectile comprising: a casing, said casing being aerodynamically shaped; means for derotating and steering said guided projecti

A guided projectile for use in an antiaircraft gun, a target aircraft being illuminated by a pulsing laser designator for said guided projectile to home upon, said guided projectile comprising: a casing, said casing being aerodynamically shaped; means for derotating and steering said guided projectile, said means attached to a rear section of said casing, said means including a plurality of steerable deployable vanes, said vanes being positioned in said rear section of said casing, said vanes causing said projectile to change from spin stabilized to drag stabilized; optical means for focusing reflected laser radiation from said aircraft onto a designated area, a position of a spot, being the focused reflected laser radiation, on said designated area corresponding to a position of said aircraft in a field of view, said optical means being positioned at a front of said casing; an electronic steering section, said electronic steering section outputting signals for controlling said vanes for derotating and steering said guided projectile, said signals being a function of said position of said spot on said designated area, said electronic section outputting signals to null said signals, said electronic steering section including a bridge cell having four detector quadrants forming said designated area, said bridge cell coupled to said optical means; a vane control section, said vane control section receiving said signals from said electronic steering section, said vanes being driven by piezoelectric actuators that receive said signals; a high energy exposive, said explosive positioned within said casing; a detonator, said detonator causing said explosive to ignite upon predetermined conditions; and a battery, said battery being activated upon the firing of said guided projectile, said battery providing power to said electronic steering section and said vane control section.