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Better-quality CCD-array imagesIn quadruple sampling, signal from each element in array is sampled once before element is clamped on, twice during "on" period, once again after element is turned off. Quadruple-sampling scheme increases overall signal-to-noise by about 40 percent above level for double sampling, prediction verified by measurements on star-tracking imager.
Document ID
19800000168
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Gaalema, S. D. (Caltech)
Date Acquired
August 10, 2013
Publication Date
September 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 2
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-14426
Accession Number
80B10168
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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