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Proceedings Paper

Wavefront sensing and control architecture for the Spherical Primary Optical Telescope (SPOT)
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Paper Abstract

Testbed results are presented demonstrating high-speed image-based wavefront sensing and control for a spherical primary optical telescope (SPOT). The testbed incorporates a phase retrieval camera coupled to a 3-Mirror Vertex testbed (3MV) at the NASA Goddard Space Flight Center. Actuator calibration based on the Hough transform is discussed as well as several supercomputing architectures for image-based wavefront sensing. Timing results are also presented based on various algorithm implementations using a cluster of 64 TigerSharc TS101 DSP's (digital-signal processors).

Paper Details

Date Published: 16 June 2006
PDF: 10 pages
Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62654F (16 June 2006); doi: 10.1117/12.673450
Show Author Affiliations
Bruce H. Dean, NASA Goddard Space Flight Ctr. (United States)
Jeff S. Smith, NASA Goddard Space Flight Ctr. (United States)
Jason G. Budinoff, NASA Goddard Space Flight Ctr. (United States)
Lee Feinberg, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 6265:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw, Editor(s)

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