A CCD image transducer and processor suitable for space flight

Computer Science

Scientific paper

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Charge Coupled Devices, Image Transducers, Telescopes, Video Data, Arrays, Metal Oxide Semiconductors, Satellite-Borne Instruments, Solar Corona, Ultraviolet Photometry

Scientific paper

A satellite borne extreme ultraviolet solar telescope makes use of CCD area arrays for both image readout and onboard data processing. The instrument is designed to view the inner solar corona in the wavelength band 170 - 630 A, and the output video stream may be selected by ground command to present the coronal scene, or the time-rate-of-change of the scene. Details of the CCD application to onboard image processing are described, and a discussion of the processor's potential for telemetry bandwidth compression is included. Optical coupling methods, data storage requirements, spatial and temporal resolution, and nonsymmetry of resolution (pitch) in the CCD are discussed.

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