Theory of the laser scintillometer
Abstract
The effect of atmospheric turbulence on the intensity of a laser beam was theoretically investigated in the Rytov approximation. This approximation is valid under some conditions, which are easily satisfied by a laserscintillometer. The theory is explained by means of the derivation of the connection between the structure constant (a good measure for the level of turbulence) and the standard deviation of the intensity fluctuations. As much as possible, the question is elementarily dealt with and the only starting points are the wave equation and some (Kolmogorov or von Karman) spectrum. Because of a more exact interpretation of the Rytov approximation, a result was found that differs from formulas generally cited in the literature of V.I. Tatarski as far as the numerical factors are concerned.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 April 1978
 Bibcode:
 1978STIN...7917214M
 Keywords:

 Atmospheric Turbulence;
 Laser Outputs;
 Scintillation Counters;
 Bessel Functions;
 Kolmogoroff Theory;
 Lasing;
 Wave Equations;
 Lasers and Masers