Confidence range estimate of extended-source imagery acquisition algorithms via computer simulations

Chien-Chung Chen; Elliot Hui; Garret T. Okamoto

doi:10.1117/12.59282

9 June 1992 Confidence range estimate of extended-source imagery acquisition algorithms via computer simulations

Chien-Chung Chen, Elliot Hui, Garret T. Okamoto

Proceedings Volume 1635, Free-Space Laser Communication Technologies IV; (1992) https://doi.org/10.1117/12.59282
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

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.

Citation Download Citation

Chien-Chung Chen, Elliot Hui, and Garret T. Okamoto "Confidence range estimate of extended-source imagery acquisition algorithms via computer simulations", Proc. SPIE 1635, Free-Space Laser Communication Technologies IV, (9 June 1992); https://doi.org/10.1117/12.59282

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