Wavefront sensing and control architecture for the Spherical Primary Optical Telescope (SPOT) | Zendy

Bruce H. Dean | Zendy; J. Scott Smith | Zendy; Jason Budinoff | Zendy; Lee Feinberg | Zendy

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

Author(s) -

Bruce H. Dean,

J. Scott Smith,

Jason Budinoff,

Lee Feinberg

Publication year - 2006

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.673450

Subject(s) - testbed , wavefront , deformable mirror , computer science , adaptive optics , hough transform , wavefront sensor , optics , primary mirror , telescope , physics , computer vision , image (mathematics) , computer network

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).

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