Irradiance scintillation analysis for laser beam propagation in turbulent atmosphere near-ground

Optical turbulence has severe influence on laser beam propagation in the atmosphere.Irradiance scintillation is one of the most essential and important effects.Irradiance scintillation is treated as a modulation of small scale scintillation by large scale scintillation as laser beams propagation in turbulent atmosphere,and the modulation process is discussed.Based on the modulation theory of irradiance scintillation,the irradiance scintillation index is investigated in the typical near-ground condition,and the influence of various factors on irradiance scintillation is analyzed.