Optical imaging through atmospheric turbulence
Abstract
A review is first made of research done at ONERA in optical imaging through atmospheric turbulence. Several techniques previously proposed, by which images can be obtained with a resolution at the diffraction limit, are compared on the basis of their field of application, the expected signal-to-noise ratio, and the practical difficulties involved with these methods, which are: techniques involving off-line digital processing, based on a generalization of the speckle interferometry method proposed by A. Labeyrie; the deconvolution from wave-front sensing; and adaptive optics, which seems to be a very promising technique.
- Publication:
-
La Recherche Aerospatiale
- Pub Date:
- June 1988
- Bibcode:
- 1988ReAeB.......47R
- Keywords:
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- Atmospheric Optics;
- Imaging Techniques;
- Kinematics;
- Signal Processing;
- Turbulence;
- Wave Fronts;
- Wave Propagation;
- Algorithms;
- Diffraction;
- Digital Techniques;
- Signal To Noise Ratios;
- Speckle Interferometry;
- Geophysics