Adaptive optics tip-tilt system with fuzzy control

Details Adaptive optics tip-tilt system with fuzzy control Adaptive optics tip-tilt system with fuzzy control

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4007..671f&link_type=abstract

Proc. SPIE Vol. 4007, p. 671-681, Adaptive Optical Systems Technology, Peter L. Wizinowich; Ed.

Physics

Optics

Scientific paper

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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