THEORETICAL AND EXPERIMENTAL INVESTIGATION OF IMAGE QUALITY THROUGH AN INHOMOGENEOUS TURBULENT MEDIUM

A theoretical and experimental investigation of image quality through an inhomogeneous turbulent medium under controlled laboratory conditio ns is presented. In addition, a theoretical analysis based on simple p hysical principles leads to the same 5/3 power theoretical result obta ined 25 years ago by Fried [1] on the basis of phase covariance and ph ase structure function. The present analysis, however, can be expanded to indicate how effects of turbulence depend upon field of view. This work is applicable to determining optimum elevation for imaging throu gh inhomogeneous turbulence near the surface of the earth.