초록 ▼

A method for measuring boresight and parallax misalignment between multiple missile track links and for compensating guidance of a missile to a selected target. The method is applicable to any missile tracking system employing multiple track links. A missile is projected toward a target along a line

A method for measuring boresight and parallax misalignment between multiple missile track links and for compensating guidance of a missile to a selected target. The method is applicable to any missile tracking system employing multiple track links. A missile is projected toward a target along a line of sight and tracked by multiple tracking sensors. Instantaneous output signals of any two tracking sensors are compared to determine instantaneous errors in boresight, parallax, or random errors. The error information is used to compute boresight and parallax correction terms. The correction terms are fed into conventional missile guidance algorithms to correct errors between the tracking sensor\s line of sight and an operator\s line of sight. Misalignment is measured during missile flight and the missile is used as a reference source in measuring the misalignments. The method is useful in tracking systems mounted on moving vehicles where accurate alignment of track links is difficult. The invention is also be useful in automatically preventing missile misses due to accidental misalignments in systems where the operator has manual control of the misalignment.

대표청구항 ▼

In a missile guidance system in which the missile has a plurality of tracking beacons at the rear thereof, and in which a plurality of beacon sensors are provided to form multiple target links, a method of compensating for misalignments between the multiple target tracking links in the missile guida

In a missile guidance system in which the missile has a plurality of tracking beacons at the rear thereof, and in which a plurality of beacon sensors are provided to form multiple target links, a method of compensating for misalignments between the multiple target tracking links in the missile guidance system, said method comprising the steps of: projecting a missile toward a target; tracking the target using a plurality of target tracking links; measuring the line of sight error between the plurality of target tracking links; computing an error correction term from the measured line of sight error; applying the error correction term to the missile to compensate missile guidance commands for the error between the lines of sight of the multiple target tracking links.