Physics – Optics
Scientific paper
Sep 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990josaa...7.1598p&link_type=abstract
Optical Society of America, Journal, A: Optics and Image Science (ISSN 0740-3232), vol. 7, Sept. 1990, p. 1598-1608. Research su
Physics
Optics
70
Atmospheric Turbulence, Image Processing, Image Resolution, Wave Front Reconstruction, High Resolution, Image Reconstruction, Optical Transfer Function, Point Spread Functions, Signal To Noise Ratios
Scientific paper
A new technique of high-resolution imaging through atmospheric turbulence is described. As in speckle interferometry, short-exposure images are recorded, but in addition the associated wave fronts are measured by a Hartmann-Shack wave-front sensor. The wave front is used to calculate the point-spread function. The object is then estimated from the correlation of images and point-spread functions by a deconvolution process. An experimental setup is described, and the first laboratory results, which prove the capabilities of the method, are presented. A signal-to-noise-ratio calculation, permitting a first comparison with the speckle interferometry, is also presented.
Fontanella Jean-Claude
Primot Jerome
Rousset Gabriel
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