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Proceedings Paper

Massively parallel algorithms for real-time wavefront control of a dense adaptive optics system
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Paper Abstract

Massively parallel algorithms and architectures for real-time wavefront control of a dense adaptive optic system (SELENE) are presented. We have already shown that the computation of a near optimal control algorithm for SELENE can be reduced to the solution of a discrete Poisson equation on a regular domain. Although this represents an optimal computation, due to the large size of the system and the high sampling rate requirement, the implementation of this control algorithm poses a computationally challenging problem since it demands a sustained computational throughput of the order of 10 GFlops. We develop a novel algorithm, designated as Fast Invariant Imbedding algorithm, which offers a massive degree of parallelism with simple communication and synchronization requirements. We also discuss two massively parallel, algorithmically specialized, architectures for low-cost and optimal implementation of the Fast Invariant Imbedding algorithm.

Paper Details

Date Published: 1 May 1994
PDF: 15 pages
Proc. SPIE 2121, Laser Power Beaming, (1 May 1994); doi: 10.1117/12.174174
Show Author Affiliations
Amir Fijany, Jet Propulsion Lab. (United States)
Mark H. Milman, Jet Propulsion Lab. (United States)
David C. Redding, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 2121:
Laser Power Beaming
Jack V. Walker; Edward E. Montgomery, Editor(s)

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