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Proceedings Paper

Image Signal Processing In Sub-Pixel Accuracy Star Trackers
Author(s): Phil M. Salomon; Tom A. Glavich
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Paper Abstract

Recent star tracker developments at JPL which utilize microprocessor-controlled large area imaging CCD arrays have included several novel techniques for maximizing the efficiency with which information can be extracted as well as corrected for electronic and opto/ mechanical distortions. Scanning algorithms which maximize the rate of obtaining target information, coupled with autonomous control of CCD and signal chain parameters, result from efficient task allocations between electronic hardware elements and operating software. Trade-offs between optical system and image processing software complexity allow sub-pixel star and image tracking using badly aberrated point spread functions by means of power series correction equations which define ideal image centroids from the aberrated image centroids. Star trackers employing these techniques currently under development at JPL are described.

Paper Details

Date Published: 1 January 1980
PDF: 11 pages
Proc. SPIE 0252, Smart Sensors II, (1 January 1980); doi: 10.1117/12.959484
Show Author Affiliations
Phil M. Salomon, California Institute of Technology (United States)
Tom A. Glavich, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 0252:
Smart Sensors II
David F. Barbe, Editor(s)

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