Real-time control for Keck Observatory next-generation adaptive optics

Details Real-time control for Keck Observatory next-generation adaptive optics Real-time control for Keck Observatory next-generation adaptive optics

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7736e.118r&link_type=abstract

Adaptive Optics Systems II. Edited by Ellerbroek, Brent L.; Hart, Michael; Hubin, Norbert; Wizinowich, Peter L. Proceedings o

Physics

Optics

Scientific paper

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.

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