Study and Simulation on Turbulent Atmosphere Modeled by Gamma-Gamma Distributions

Abstract

Gamma-Gamma distribution model is widely used in studying the impact of the atmospheric turbulence on the Free Space Optical communication systems. This study introduces the Gamma-Gamma distribution model, simulates and studies the spot changes over distance, wavelength, turbulence structure constant and transmit aperture, respectively. Finally, the simulation results show that the Gamma-Gamma distribution is more suitable for middle-strong turbulence than weak turbulence.