Scene-based wavefront sensing for remote imaging

Details Scene-based wavefront sensing for remote imaging Scene-based wavefront sensing for remote imaging

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.5162...91p&link_type=abstract

Advanced Wavefront Control: Methods, Devices, and Applications. Edited by Gonglewski, John D.; Vorontsov, Mikhail A.; Gruneisen

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Scene-based wave-front sensing (SBWFS) is a technique that allows an arbitrary scene to be used for wave-front sensing with adaptive optics (AO) instead of the normal point source. This makes AO feasible in a wide range of interesting scenarios. This paper first presents the basic concepts and properties of SBWFS. Then it discusses the application of this technique with AO to remote imaging, for the specific case of correction of a lightweight optic. End-to-end simulation results establish that in this case, SBWFS can perform as well as point-source AO. Design considerations such as noise propagation, number of subapertures and tracking changing image content are analyzed.

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