Diffraction-limited atmospheric imaging of extended objects

Details Diffraction-limited atmospheric imaging of extended objects Diffraction-limited atmospheric imaging of extended objects

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976josa...66..469s&link_type=abstract

Optical Society of America, Journal, vol. 66, May 1976, p. 469-477.

Physics

Optics

7

Atmospheric Optics, Atmospheric Turbulence, Imaging Techniques, Light Transmission, Scattering Functions, Image Correlators, Lenses, Light Scattering, Optical Communication, Optical Transfer Function, Turbulence Effects

Scientific paper

The paper develops a model for the predetection processing - a method for improving the quality of images formed through atmospheric turbulence - for objects which comprise many isoplanatic elements. It is shown that an atmosphere-lens system behaves macroscopically as though it consisted microscopically of a collection of uncorrelated scatterers with random scattering strengths which contribute image components with varying spatial and spatial-frequency displacements. The macroscopic scattering function for these so called wide-sense stationary uncorrelated scatter channels is derived and employed to show that under typical turbulence-strength conditions the seeing limit can resolve the isoplanatic patch.

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