Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume 26, Issue 4, Pages 1008-1014Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAA.26.001008
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- NASA Goddard Space Flight Center
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The effect of a uniform measurement bias, due to background light, stray light, detector dark current, or detector offset, on phase retrieval wavefront sensing algorithms is analyzed. Simulation results indicate that the root-mean-square error of the retrieved phase can be more sensitive to an unaccounted-for signal bias than to random noise in practical scenarios. Three methods for reducing the impact of signal bias are presented. (C) 2009 Optical Society of America
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