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Proceedings Paper

Real-time control for Keck Observatory next-generation adaptive optics
Author(s): Marc Reinig; Donald Gavel; Ehsan Ardestani; Jose Renau
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Paper Abstract

The next generation adaptive optics systems for large telescopes will be complex systems far larger, more complex, and with higher performance than any currently installed. This requires adopting new algorithms, technologies, and architectures. The Keck next generation adaptive optics (NGAO) system requires real-time wavefront reconstruction and tomography given input from 7 laser and 3 natural guide stars. Requirements include 2 KHz atmospheric sampling, tomographic atmosphere estimation, and control for 5 deformable mirrors. We take advantage of the algorithms' massive parallelism and realize it on a massive array of FPGAs, GPUs, and multi-core CPUs. This paper presents the current design and analysis of the NGAO system.

Paper Details

Date Published: 27 July 2010
PDF: 12 pages
Proc. SPIE 7736, Adaptive Optics Systems II, 77363J (27 July 2010); doi: 10.1117/12.857579
Show Author Affiliations
Marc Reinig, Univ. of California Observatories (United States)
Donald Gavel, Univ. of California Observatories (United States)
Ehsan Ardestani, Univ. of California, Santa Cruz (United States)
Jose Renau, Univ. of California, Santa Cruz (United States)


Published in SPIE Proceedings Vol. 7736:
Adaptive Optics Systems II
Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich, Editor(s)

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