Physics – Optics
Scientific paper
Aug 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997josaa..14.1975e&link_type=abstract
Journal of the Optical Society of America A, Vol. 14, No. 8, p. 1975 - 1987
Physics
Optics
2
Adaptive Optics: Control Systems
Scientific paper
An experimental method is presented to optimize the control algorithm for a closed-loop adaptive-optics system employed with an astronomical telescope. The technique uses wave-front sensor measurements from an independent scoring sensor to calculate adjustments to the wave-front reconstruction algorithm and the bandwidth of the adaptive-optics control loop that will minimize the residual mean-square phase distortion as measured by this sensor. Specifying the range of possible adjustments defines the class of control algorithms over which system performance is optimized. The method applies to closed-loop adaptive-optics systems that incorporate one or more natural or laser guide stars and one or more deformable mirrors that are optically conjugate to distinct ranges along the propagation path.
Ellerbroek Brent L.
Rhoadarmer Troy A.
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