Ultra wide field-of-regard multispectral imaging radiometer

Details Ultra wide field-of-regard multispectral imaging radiometer Ultra wide field-of-regard multispectral imaging radiometer

1988-09-29

1991-01-29

Britton, Howard V.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

35821326, 250334, H04N 718

Patent

active

049890867

ABSTRACT:
An imaging radiometer for scanning an area of interest from a platform moving in an orbital trajectory comprises at least one moving scanning mirror directed toward the area of interest. The mirror produces a changing scan area image representing a portion of the area of interest within the scan area of the mirror. A fixed optical viewer is mounted on the platform for viewing the scan area image and directing the image along its optical path. A detector in the optical path receives the changing scan area image over a selected time interval and periodically produces an electrical output, each output representing a different scan area image of the mirror over each time interval. In one embodiment the detector has a plurality of areas of different spectral response. Image motion compensation, electronically controlled light intensity gain and electronically controlled image size correction are incorporated in the apparatus.

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