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Real-Time Wavefront Control for the PALM-3000 High Order Adaptive Optics SystemWe 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. The architecture enables full-matrix reconstruction of the wavefront at up to 2 KHz with latency under 250 us for the PALM-3000 adaptive optics systems, a state-of-the-art upgrade on the 5.1 meter Hale Telescope that consists of a 64 x 64 subaperture Shack-Hartmann wavefront sensor and a 3368 active actuator high order deformable mirror in series with a 241 active actuator tweeter DM. The architecture can easily scale up to support much larger AO systems at higher rates and lower latency.
Document ID
20150008614
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Truong, Tuan N.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bouchez, Antonin H.
(California Inst. of Tech. Pasadena, CA, United States)
Dekany, Richard G.
(California Inst. of Tech. Pasadena, CA, United States)
Guiwits, Stephen R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Roberts, Jennifer E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Troy, Mitchell
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 20, 2015
Publication Date
June 23, 2008
Subject Category
Optics
Computer Operations And Hardware
Computer Programming And Software
Meeting Information
Meeting: SPIE Astronomical Instrumentation Conference
Location: Marseille
Country: France
Start Date: June 23, 2008
End Date: June 28, 2008
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
GPU
CUDA
AO
nesC
wavefront processor

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