Method for optimizing closed-loop adaptive optics wavefront reconstruction algorithms on the basis of experimentally measured performance data

Details Method for optimizing closed-loop adaptive optics wavefront reconstruction algorithms on the basis of experimentally measured performance data Method for optimizing closed-loop adaptive optics wavefront reconstruction algorithms on the basis of experimentally measured performance data

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2534..213r&link_type=abstract

Proc. SPIE Vol. 2534, p. 213-225, Adaptive Optical Systems and Applications, Robert K. Tyson; Robert Q. Fugate; Eds.

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An experimental method is presented for optimizing the wavefront reconstruction algorithm of a closed-loop adaptive optics system employed with an astronomical telescope. This technique uses wavefront sensor measurements from an independent scoring sensor to calculate adjustments to the reconstruction algorithm which will minimize the residual mean-square phase distortion. The method applies to closed-loop adaptive optics systems incorporating one or more guidestars, a wavefront reconstruction algorithm that is equivalent to a matrix multiply, and one or more deformable mirrors. Simulation results are reported for the case of a hybrid adaptive optics system incorporating one natural guidestar, one laser guidestar, and one deformable mirror. Differences in the spatial resolution of the wavefront sensors for the two guidestars are considered, particularly reduced resolution natural guidestar sensors for use with dim stars.

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