Rosensteiner Matthias
MathConsult GmbH, Linz, Austria.
J Opt Soc Am A Opt Image Sci Vis. 2011 Oct 1;28(10):2132-8. doi: 10.1364/JOSAA.28.002132.
The Cumulative Reconstructor (CuRe) is a new direct reconstructor for an optical wavefront from Shack-Hartmann wavefront sensor measurements. In this paper, the algorithm is adapted to realistic telescope geometries and the transition from modified Hudgin to Fried geometry is discussed. After a discussion of the noise propagation, we analyze the complexity of the algorithm. Our numerical tests confirm that the algorithm is very fast and accurate and can therefore be used for adaptive optics systems of Extremely Large Telescopes.