Adaptive optics tip-tilt system with fuzzy control

Ruben Flores-Meza; Pablo Diaz Sotelo; Fernando Garfias; Salvador Cuevas; Leonardo J. Sanchez

doi:10.1117/12.390360

7 July 2000 Adaptive optics tip-tilt system with fuzzy control

Ruben Flores-Meza, Pablo Diaz Sotelo, Fernando Garfias, Salvador Cuevas, Leonardo J. Sanchez

Proceedings Volume 4007, Adaptive Optical Systems Technology; (2000) https://doi.org/10.1117/12.390360
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

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.

Citation Download Citation

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); https://doi.org/10.1117/12.390360

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KEYWORDS

Adaptive optics

Control systems

Fuzzy logic

Sensors

Telescopes

Actuators

Fuzzy systems

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