Real-time wavefront control for the PALM-3000 high order adaptive optics system
Abstract
We present a cost-effective scalable real-time wavefront control architecture based on off-the-shelf graphics processing units hosted in an ultra-low latency, high-bandwidth interconnect PC cluster environment composed of modules written in the component-oriented language of nesC. We demonstrate the architecture is capable of supporting the most computation and memory intensive wavefront reconstruction method (vector-matrix-multiply) at frame rates up to 2 KHz with latency under 250 &mgr;s for the PALM-3000 adaptive optics systems, a state-of-the-art upgrade on the 5.1 meter Hale Telescope that consists of a 64x64 subaperture Shack-Hartmann wavefront sensor and a 3368 active actuator high order deformable mirror in series with a 349 actuator "woofer" DM. This architecture can easily scale up to support larger AO systems at higher rates and lower latency.
Additional Information
© 2018 Society of Photo-Optical Instrumentation Engineers. This research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the California Institute of Technology and the National Aeronautics and Space Administration. Support for evaluation hardware was generously provided by Defense University Research Instrumentation Program (DURIP).Attached Files
Published - 70153I.pdf
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Additional details
- Eprint ID
- 91857
- Resolver ID
- CaltechAUTHORS:20181217-102357687
- NASA/JPL/Caltech
- Air Force Office of Scientific Research (AFOSR)
- Created
-
2018-12-18Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 7015