초록 ▼

A system for guiding the flight of a projectile to a target. The system comprises a tracking and guidance system, the projectile, and a projectile reference and control system that is part of the projectile. The tracking and guidance system includes a target tracker, a projectile tracker for providi

A system for guiding the flight of a projectile to a target. The system comprises a tracking and guidance system, the projectile, and a projectile reference and control system that is part of the projectile. The tracking and guidance system includes a target tracker, a projectile tracker for providing a projectile-tracking laser beam, and a target designator for designating the target using a target-tracking laser beam, and for providing range data indicative of the range to the target. A processor is coupled to the target designator, the target tracker, and the projectile tracker for processing target and projectile return signals and target range signals to generate an actuator command signal that is transmitted by the projectile tracker using the projectile-tracking laser beam and that is used to alter the flight of the projectile. The projectile reference and control system includes an optical reference including polarized and unpolarized retroflectors for reflecting the projectile-tracking laser beam back to the projectile tracker, and a detector that is responsive to the projectile-tracking laser beam provided by the projectile tracker, for detecting the actuator command signal transmitted by the projectile tracker. A command operated actuator is coupled to the detector for processing the actuator command signal and for generating a trajectory modification signal that is used to alter the flight of the projectile. A divert assembly coupled to the command operated actuator for generating thrust that diverts the trajectory of the projectile in response to the trajectory modification signal.

대표청구항 ▼

A guided projectile system for guiding a projectile to a target, said system comprising: a tracking and guidance system comprising: a target tracker; a projectile tracker for providing a projectile-tracking signal; a target designator for designating the target using a target-tracking signal, and fo

A guided projectile system for guiding a projectile to a target, said system comprising: a tracking and guidance system comprising: a target tracker; a projectile tracker for providing a projectile-tracking signal; a target designator for designating the target using a target-tracking signal, and for providing range data indicative of the range to the target; and a processor coupled to the target designator, the target tracker, and the projectile tracker for processing target and projectile return signals and target range signals to generate an actuator command signal that is transmitted by the projectile tracker to the projectile that is used to alter the flight of the projectile; and wherein the projectile includes a projectile reference and control system that comprises: an optical reference including polarized and unpolarized retroreflectors for reflecting the projectile-tracking signal back to the projectile tracker; a detector that is responsive to the projectile-tracking signal provided by the projectile tracker, for detecting the actuator command signal transmitted by the projectile tracker; a command operated actuator coupled to the detector for processing the actuator command signal and to produce a trajectory modification signal that is used to alter the flight of the projectile; and a divert assembly coupled to the command operated actuator for generating thrust that diverts the trajectory of the projectile in response to the trajectory modification signal; and wherein the optical reference is caused to nutate while the projectile flies towards the target, and wherein the tracking and guidance system initially measures roll orientation of the projectile by monitoring the nutation of the polarized return signal while the projectile is relatively close to the projectile tracker, and subsequently measures roll orientation of the projectile by monitoring the modulation of the polarized return signal from the projectile tracker when the projectile is further from the projectile tracker, wherein continued rotation of the projectile allows continued measurement of its roll orientation.