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13 December 2020 Optimising tomographic reconstructor parameters for adaptive optics using real turbulence profiles
Ollie J.D. Farley, James Osborn, Richard Wilson, Thierry Fusco, Benoit Neichel, Tim Morris, Carlos Correia
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Proceedings Volume 11448, Adaptive Optics Systems VII; 114481Y (2020) https://doi.org/10.1117/12.2561425
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only
Abstract
The performance of tomographic adaptive optics systems will depend on the vertical profile of turbulence in the atmosphere. Since the profile is changing over time, to maintain optimal correction the tomographic reconstructor must be continually updated with new profile information. Several reconstructor parameters must then be chosen to optimise performance given the constraints of real-time computing resources: the number of reconstructed layers, reoptimisation period and averaging time. We analyse the effect of changing these parameters by coupling fast Fourier-domain AO simulation with a large database of over 10,000 high resolution turbulence profiles measured by the Stereo-SCIDAR at Paranal.
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Ollie J.D. Farley, James Osborn, Richard Wilson, Thierry Fusco, Benoit Neichel, Tim Morris, and Carlos Correia "Optimising tomographic reconstructor parameters for adaptive optics using real turbulence profiles", Proc. SPIE 11448, Adaptive Optics Systems VII, 114481Y (13 December 2020); https://doi.org/10.1117/12.2561425
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KEYWORDS
Adaptive optics
Turbulence
Tomography
Real-time computing
Atmospheric modeling
Atmospheric optics
Computer simulations
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