Beam-rider guidance using two overlapping reticle discs

Details Beam-rider guidance using two overlapping reticle discs Beam-rider guidance using two overlapping reticle discs

1981-05-11

1984-02-21

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Remote control

F41G 726

Patent

active

044325118

ABSTRACT:
A beam rider guidance concept and transmitting assembly including two synchronously rotating discs with beam modulation patterns thereof positioned such that the modulation pattern on one disc passes through the centerline of the projected guidance beam in the elevation direction and the modulation pattern on the other disc passes through the beam in the azimuth direction. The discs are closely adjacent, and have clear reticles or spaces included to allow uninhibited beam passage where necessary. Where other clear reticles or spaces appear in both discs simultaneously, various digital on-off light signals are sent to a receiver in the guided projectile or projectiles, to perform functions of synchronization, calibration, and address codes and bias guidance position codes applicable to a plurality of simultaneously guided missiles or objects directed to individual respective targets.
The guidance beam is a pulsed laser, for example, having electronic pulsing control and also pulse timing dependent upon disc position pick-off means. The pulse control may be delayed slightly on predetermined successive revolutions to provide a greater resolution of guidance position control.

REFERENCES:
patent: 2404942 (1946-07-01), Bedford
patent: 3690594 (1972-09-01), Menke
patent: 3950099 (1976-04-01), Malueg
patent: 4014482 (1977-03-01), Esker et al.
patent: 4174818 (1979-11-01), Glenn
patent: 4245156 (1981-01-01), Harvey et al.

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