Multiple field-of-view MCAO for a Large Solar Telescope: LOST simulations

Details Multiple field-of-view MCAO for a Large Solar Telescope: LOST simulations Multiple field-of-view MCAO for a Large Solar Telescope: LOST simulations

2010-08-03

arxiv.org/abs/1008.0555v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

10 pages, 5 figures to be published in Adaptive Optics Systems II (Proceedings Volume) Proceedings of SPIE

Scientific paper

In the framework of a 4m class Solar Telescope we studied the performance of the MCAO using the LOST simulation package. In particular, in this work we focus on two different methods to reduce the time delay error which is particularly critical in solar adaptive optics: a) the optimization of the wavefront reconstruction by reordering the modal base on the basis of the Mutual Information and b) the possibility of forecasting the wavefront correction through different approaches. We evaluate these techniques underlining pros and cons of their usage in different control conditions by analyzing the results of the simulations and make some preliminary tests on real data.

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