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Revista mexicana de astronomía y astrofísica
versión impresa ISSN 0185-1101
Resumen
VOITSEKHOVICH, V. V. y ORLOV, V. G.. Rev. mex. astron. astrofis [online]. 2010, vol.46, n.1, pp.145-152. ISSN 0185-1101.
The influence of amplitude fluctuations on the quality of phase reconstruction in curvature sensing is investigated. Two curvature schemes are compared: one with two symmetrically-defocused images (Roddier scheme) and one with a single defocused image (Hickson scheme). It is shown that the accuracy of phase reconfluctuations, while the Roddier scheme works well under quite strong amplitude o struction with the Hickson scheme is strongly affected even by low-level amplitude fluctuations.
Palabras llave : instrumentation: adaptive optics; techniques: high angular resolution.