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Wavefront Sensing Via High Speed DSP
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Publisher Price: $15.75
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ISBN10: 1289286485
ISBN13: 9781289286484
Publisher: Bibliogov
Published: Aug 6 2013
Pages: 30
Weight: 0.16
Height: 0.06 Width: 7.44 Depth: 9.69
Language: English
ISBN13: 9781289286484
Publisher: Bibliogov
Published: Aug 6 2013
Pages: 30
Weight: 0.16
Height: 0.06 Width: 7.44 Depth: 9.69
Language: English
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.
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