Aeronautics and astronautics – Missile stabilization or trajectory control – Remote control
Patent
1978-01-23
1980-11-25
Jordan, Charles T.
Aeronautics and astronautics
Missile stabilization or trajectory control
Remote control
F41G 700
Patent
active
042353963
ABSTRACT:
A night sighting arrangement for automatic guidance of missiles, in which an image is displayed in Cartesian coordinates for the observation and target recognition. An image display in polar coordinates is provided for target identification and aiming procedures, as well as missile guidance correction. The display in Cartesian coordinates has a pivoting mirror used for the horizontal deflection. A polygon prism is used for the vertical deflection where reversal optics systems required for polar scanning, are fixed and the image is rotated by 90.degree. relative to the scan direction of the deflection mirror by the reversal optics. For the polar scan, the deflection mirror is held fixed in the middle position, and the optical elements causing the image rotation are rotated at half the image frequency. The same deflection mirror is used for the infrared picture taking and the optical image display, so that automatic synchronization takes place in the image direction during Cartesian display. The diameter of the polar image field and the height of the Cartesian image field are the same.
REFERENCES:
patent: 3974328 (1976-08-01), Thomas et al.
patent: 3974383 (1976-08-01), Chapman
patent: 4106726 (1978-08-01), Emmons et al.
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