Nonlinear scanning to optimize sector scan electro-optic reconna

Details Nonlinear scanning to optimize sector scan electro-optic reconna Nonlinear scanning to optimize sector scan electro-optic reconna

1992-12-10

1996-01-02

Voeltz, Emanuel T.

Boots, shoes, and leggings

348144, 348147, 364456, G02B 1516, G01C 1102

Patent

active

054814790

ABSTRACT:
Long range, non-linear, sector scan panoramic electro-optical reconnaissance of a scene from an airborne craft is performed at increased aircraft velocities with a given detector technology at a desired level of performance. A focal plane array is configured to detect an image of the scene, and to convert the image into electronic charge information representing the image. A main electronics unit that converts the electronic charge representation into an electronic signal which is a digital representation of the image. A lens arrangement is used to focus a narrow slit of the scene onto the focal plane array, and a rotating prism scans the slit across the scene at a non-linear scanning velocity as determined according to the present invention. The electronic signal is transmitted to a ground station where it is processed to provide visual image data and that represents the scene, distortion induced into this data as a result of the non-linear scan velocity is removed to provide a distortion free final image.

REFERENCES:
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patent: 4303945 (1981-12-01), Fawcett et al.
patent: 4453087 (1984-06-01), Linick
patent: 4482902 (1984-11-01), Bailey et al.
patent: 4630111 (1986-12-01), Blain et al.
patent: 5028998 (1991-07-01), Westell
patent: 5043924 (1991-08-01), Hofmann

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