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Experimental validation of Advanced Dispersed Fringe Sensing (ADFS) algorithm using Advanced Wavefront sensing and Correction Testbed (AWCT)

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dc.contributor.author Wang, Xu
dc.contributor.author Shi, Fang
dc.contributor.author Sigrist, Norbert
dc.contributor.author Seo, Byoung-Joon
dc.contributor.author Tang, Hong
dc.contributor.author Bikkannavar, Siddarayappa
dc.contributor.author Basinger, Scott
dc.contributor.author Lay, Oliver
dc.date.accessioned 2012-11-07T22:56:48Z
dc.date.available 2012-11-07T22:56:48Z
dc.date.issued 2012-07-01
dc.identifier.citation SPIE Astronomical Telescopes+Instrumentation, Amsterdam, Netherlands, July 1-6, 2012 en_US
dc.identifier.clearanceno 12-2447
dc.identifier.uri http://hdl.handle.net/2014/42402
dc.description.abstract Large aperture telescope commonly features segment mirrors and a coarse phasing step is needed to bring these individual segments into the fine phasing capture range. Dispersed Fringe Sensing (DFS) is a powerful coarse phasing technique and its alteration is currently being used for JWST. An Advanced Dispersed Fringe Sensing (ADFS) algorithm is recently developed to improve the performance and robustness of previous DFS algorithms with better accuracy and unique solution. The first part of the paper introduces the basic ideas and the essential features of the ADFS algorithm and presents the some algorithm sensitivity study results. The second part of the paper describes the full details of algorithm validation process through the advanced wavefront sensing and correction testbed (AWCT): first, the optimization of the DFS hardware of AWCT to ensure the data accuracy and reliability is illustrated. Then, a few carefully designed algorithm validation experiments are implemented, and the corresponding data analysis results are shown. Finally the fiducial calibration using Range-Gate-Metrology technique is carried out and a <10nm or <1% algorithm accuracy is demonstrated. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject Dispersed Fringe Sensing (DFS) en_US
dc.subject Advanced Dispersed Fringe Sensing (ADFS) en_US
dc.subject advanced wavefront sensing and correction testbed (AWCT) en_US
dc.title Experimental validation of Advanced Dispersed Fringe Sensing (ADFS) algorithm using Advanced Wavefront sensing and Correction Testbed (AWCT) en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Computer Systems en_US


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