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The Durham adaptive optics real-time controller

2010/10/15 by Alastair Basden, Deli Geng, Basden, Alastair +5
Physics and Astronomy · #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Instrumentation and Methods for Astrophysics (astro-ph.IM) #astro-ph.IM #physics.ins-det

paper · pdf · doi:10.48550/arxiv.1010.3209

Accepted for publication in applied optics

arxiv created 2010/10/15 · arxiv updated 2010/10/18

Abstract

The Durham adaptive optics real-time controller was initially a proof of concept design for a generic adaptive optics control system. It has since been developed into a modern and powerful CPU based real-time control system, capable of using hardware acceleration (including FPGAs and GPUs), based primarily around commercial off the shelf hardware. It is powerful enough to be used as the real-time controller for all currently planned 8~m class telescope adaptive optics systems. Here we give details of this controller and the concepts behind it, and report on performance including latency and jitter, which is less than 10~μs for small adaptive optics systems.

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