Effect of the atmosphere on measurement of correlations of intensity

Details Effect of the atmosphere on measurement of correlations of intensity Effect of the atmosphere on measurement of correlations of intensity

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..828..122b&link_type=abstract

IN: Digital image recovery and synthesis; Proceedings of the Meeting, San Diego, CA, Aug. 17, 18, 1987 (A88-51101 22-35). Bellin

Physics

1

Atmospheric Refraction, Atmospheric Turbulence, Earth Surface, Radiation Measurement, Turbulence Effects, Incoherence, Kolmogoroff Theory, Laser Outputs, Plane Waves, Taylor Series

Scientific paper

The effect of turbulence in the atmosphere on measurement of correlations of the intensity of radiation received from an incoherent source is considered. The measurements considered are made on the ground, and the source is located well above the turbulent atmosphere. General expressions presented give the two-point correlation of intensities in terms of the source-intensity distribution and the turbulence correlation function. Simplified results are given when isoplanicity is a valid assumption, but a first-order correction is also given to account for nonisoplanicity. Numerical results are presented for both weak and strong turbulence effects.

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