Neural Networks for Turbulence Prediction and Characterization in Adaptive Optics
Alejandro Buendía  1@  , Saúl Pérez  1@  , Carlos González-Gutiérrez  1@  , Santiago Iglesias-Álvarez  1@  , Javier Rodríguez-Rodríguez  1@  , Julia María Fernández  1  , Fernando Sanchez Lasheras  1@  , Francisco Javier De Cos  2@  
1 : Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA)
2 : ICTEA / University of OViedo
C/ Independencia 13, Oviedo, 33005 -  Spain

Neural networks have become a very relevant tool in the field of adaptive optics. From prediction to reconstruction to control, this type of network is establishing itself in all aspects, facilitating research tasks. The present studies focus on the study of atmospheric turbulence, on one hand in the prediction of its evolution and on the other in its characterization. Predictive control in adaptive optics aims to improve the performance of adaptive optics systems by anticipating and compensating for atmospheric disturbances before they affect the light path. This behavior can be emulated and studied by Recurrent Neural Networks (RNN), allowing for processes that require high speed. As for turbulence reconstruction, we present the Wavefronts Obtained from Measurements from laser-Beams from Atmospheric Turbulences (WOMBAT) technique, which presents an alternative to the use of laser guide stars, avoiding the cone effect. In this case, Convolutional Neural Networks (CNN) have demonstrates their efficiency at using images from a wide laser to study the shape of the turbulences.



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