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Point-source light sensor circuit is insensitive to background lightCircuit incorporating a bisynchronous demodulator for an electro-optical star-tracking sensor provides a signal proportional to star intensity without interference from background light in the field of view. The system works best on a sharply focused star image and requires a 50 percent duty cycle.
Document ID
19660000500
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Davis, E. S.
Date Acquired
August 3, 2013
Publication Date
November 1, 1966
Subject Category
Electronic Components And Circuits
Report/Patent Number
JPL-778
Report Number: JPL-778
Accession Number
66B10502
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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