Equivalent Analysis Method of the Transmission Characteristic of a Laser in Atmosphere Turbulence

Verifying the theoretical result of transmission in the atmospheric turbulence is difficult because atmospheric turbulence is random. The simulation technology features parametrical controllability and statistical realizability. Thus, simulation technology is the main technical approach in atmospheric optical research. To verify the accuracy of the simulation technology during atmospheric turbulence, four laser sources with different wavelengths were considered for experimentation. The coherent lengths to different wave lengths, structure constants, and flicker factors of atmosphere refractive index with different distances were determined. Meanwhile, an equivalent analysis on transmission characteristic was carried out with external field experimental data. Result showed that the fluctuation power spectrum to the turbulent angle of arrival generated from the simulation device of atmosphere turbulence, as well as the power exponent, follows the normal distribution on the y axis.