Estimation of a spectrum of fluctuations of a refractive index of turbulent medium

Tatyana A. Sheremetieva; Gennadii N. Filippov

doi:10.1117/12.547644

19 February 2004 Estimation of a spectrum of fluctuations of a refractive index of turbulent medium

Tatyana A. Sheremetieva, Gennadii N. Filippov

Proceedings Volume 5381, Lasers for Measurements and Information Transfer 2003; (2004) https://doi.org/10.1117/12.547644
Event: Lasers for Measurements and Information Transfer 2003, 2003, St. Petersburg, Russian Federation

Abstract

The method that measures the parameters of the spectrum of the refractive index fluctuations of a turbulent medium by laser beams is put forward. The method can be used for knowledge the characteristics of the turbulence necessary at designing of laser information systems and systems for delivery of laser radiation. The information about the parametric kind of a spectrum is used as a priori information at this method. The method consists in estimating the statistic characteristics of the laser beam intensity in the observation plane and the solution of the system of equations. The system of equations is made on the basis of analytical relations between these statistic characteristics and spectrum. The domains of possible values of the parameters of spectrum of turbulent media are defined from these equations. These domains correspond to errors of measurements. The parameters of the turbulent media are calculated as the values that are common for the all domains of the possible values. The basic difference of a way from earlier ones used consists that parameters of a spectrum of fluctuations of a parameter of refraction estimate all in aggregate and simultaneously. It is the distinctive quality of this method.

Citation Download Citation

Tatyana A. Sheremetieva and Gennadii N. Filippov "Estimation of a spectrum of fluctuations of a refractive index of turbulent medium", Proc. SPIE 5381, Lasers for Measurements and Information Transfer 2003, (19 February 2004); https://doi.org/10.1117/12.547644

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