Brandoch Calef, Boeing LTS Maui
Keywords: Imaging
Abstract:
Speckle imaging is a class of techniques for imaging through atmospheric turbulence by collecting and processing a large number of short-exposure frames. In severe conditions, when the diameter of the telescope is much larger than the characteristic scale of atmospheric fluctuations, the reconstructed image is dominated by “turbulence noise” caused by redundant baselines in the pupil. In earlier work, it was shown that this noise could be dramatically reduced by partitioning the telescope aperture and combining the bispectra of all the subapertures. We will describe an experimental investigation of this technique and show results from a laboratory study.
Date of Conference: September 1-4. 2009
Track: Imaging