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

Marc Reinig; Donald Gavel; Ehsan Ardestani; Jose Renau

doi:10.1117/12.857579

27 July 2010 Real-time control for Keck Observatory next-generation adaptive optics

Marc Reinig, Donald Gavel, Ehsan Ardestani, Jose Renau

Proceedings Volume 7736, Adaptive Optics Systems II; 77363J (2010) https://doi.org/10.1117/12.857579
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

Citation Download Citation

Marc Reinig, Donald Gavel, Ehsan Ardestani, and Jose Renau "Real-time control for Keck Observatory next-generation adaptive optics", Proc. SPIE 7736, Adaptive Optics Systems II, 77363J (27 July 2010); https://doi.org/10.1117/12.857579

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