Aeronautics and astronautics – Missile stabilization or trajectory control – Automatic guidance
Patent
1980-05-22
1982-09-07
Jordan, Charles T.
Aeronautics and astronautics
Missile stabilization or trajectory control
Automatic guidance
244 322, F41G 726
Patent
active
043479960
ABSTRACT:
A guidance system is shown whereby a spin-stabilized projectile with a "strap-down" seeker may be commanded to fly toward a target by maintaining an inertial line-of-sight rate below a preset limit. To accomplish the desired mode of guidance the projectile here is equipped with a polarization receiver to establish an inertial reference in roll, a strap-down seeker to determine the existing line-of-sight between the projectile and the target during intercept, a signal processor to convert signals out of the polarization receiver and the strap-down seeker into signals indicative of the time rate of change of the line-of-sight angle, corrected for any gyroscopically induced movement of the projectile, a plurality of thrusters in helical channels about the periphery of the projectile and a controller, responsive to the output of the signal processor, to select and fire selected ones of such thrusters to keep the rate of change of the line-of-sight angle below a preset value.
REFERENCES:
patent: 3843076 (1974-10-01), King et al.
patent: 3905563 (1975-09-01), Nagoshi
patent: 4264907 (1981-04-01), Durand, Jr. et al.
Jordan Charles T.
McFarland Philip J.
Pannone Joseph D.
Raytheon Company
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