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

Bruce H. Dean; Jeff S. Smith; Jason G. Budinoff; Lee Feinberg

doi:10.1117/12.673450

16 June 2006 Wavefront sensing and control architecture for the Spherical Primary Optical Telescope (SPOT)

Bruce H. Dean, Jeff S. Smith, Jason G. Budinoff, Lee Feinberg

Proceedings Volume 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter; 62654F (2006) https://doi.org/10.1117/12.673450
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

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).

Citation Download Citation

Bruce H. Dean, Jeff S. Smith, Jason G. Budinoff, and Lee Feinberg "Wavefront sensing and control architecture for the Spherical Primary Optical Telescope (SPOT)", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62654F (16 June 2006); https://doi.org/10.1117/12.673450

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