| Wavefront Sensing Via High Speed DSP Contributor(s): Smith, J. Scott (Author), Dean, Bruce (Author), Nasa Technical Reports Server (Ntrs) (Created by) |
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ISBN: 1289286485 ISBN-13: 9781289286484 Publisher: Bibliogov OUR PRICE: $14.18 Product Type: Paperback Published: August 2013 |
| Additional Information |
| BISAC Categories: - Political Science |
| Physical Information: 0.06" H x 7.44" W x 9.69" (0.16 lbs) 30 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Future light-weighted and segmented primary mirror systems require active optical control to maintain mirror positioning and figure to within nanometer tolerances. Current image-based wavefront sensing approaches rely on post-processing techniques to return an estimate of the aberrated optical wavefront with accuracies to the nanometer level. But the lag times between wavefront sensing, and then control, contributes to a significant latency in the wavefront sensing implementation. In this analysis we demonstrate accelerated image-based wavefront sensing performance using multiple digital signal processors (DSP's). The computational architecture is discussed as well as the heritage leading to the approach. |