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Proceedings Paper

Confidence range estimate of extended-source imagery acquisition algorithms via computer simulations
Author(s): Chien-Chung Chen; Elliot Hui; Garret T. Okamoto
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Paper Abstract

Spatial acquisition using the sun-lit Earth as a beacon source provides several advantages over active beacon-based systems for deep-space optical communication systems. However, since the angular extend of the Earth image is large compared to the laser beam divergence, the acquisition subsystem must be capable of resolving the image to derive the proper pointing orientation. The algorithms used must be capable of deducing the receiver location given the blurring introduced by the imaging optics and the large Earth albedo fluctuation. Furthermore, because of the complexity of modelling the Earth and the tracking algorithms, an accurate estimate of the algorithm accuracy can only be made via simulation using realistic Earth images. An image simulator was constructed for this purpose, and the results of the simulation runs are reported.

Paper Details

Date Published: 9 June 1992
PDF: 9 pages
Proc. SPIE 1635, Free-Space Laser Communication Technologies IV, (9 June 1992); doi: 10.1117/12.59282
Show Author Affiliations
Chien-Chung Chen, Jet Propulsion Lab. (United States)
Elliot Hui, Jet Propulsion Lab. (United States)
Garret T. Okamoto, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 1635:
Free-Space Laser Communication Technologies IV
David L. Begley; Bernard D. Seery, Editor(s)

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