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7 July 2000 Adaptive optics tip-tilt system with fuzzy control
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The performance of adaptive optics systems not only depends on its number of actuators and optics quality but also on the performance of the controller used to compensate the wave- front distortions. Due to the temporal bandwidth required to realize a suitable tracking of the atmospheric turbulence dynamics it is necessary that the controller have a short time delay and high stability and robustness indices. A fuzzy logic controller, a technique related with Artificial Intelligence, accomplish all the characteristics aforementioned. In this paper, we present some laboratory tests with the LOLA adaptive optics tip-tilt system in closed loop with a fuzzy controller. In addition, we present some results obtained with LOLA and fuzzy control at the 1 meter Telescope of the Observatorio Astronomico Nacional in Tonantzintla, Peubla, Mexico. We analyze these results with a signal analysis approach such as the power spectrum of the image centroid motion and its correspondent residual variance.
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Ruben Flores-Meza, Pablo Diaz Sotelo, Fernando Garfias, Salvador Cuevas, and Leonardo J. Sanchez "Adaptive optics tip-tilt system with fuzzy control", Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000);


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