Influence of atmospheric turbulence on image resolution of optical sensing system

The atmospheric influences on image resolution of ground-to-space or space-to-ground system are analyzed. Atmospheric correlation length r₀ is the basis of evaluating the atmospheric influence on image resolution. According to different atmospheric turbulence model, r₀ has been calculated to evaluate the influence on image resolution. And r₀ comparison between ground-to-space system and space-to-ground system is presented. For space-to-ground system, r₀ is related with the altitude of atmospheric turbulence and C_n ², and for ground-to-space system, r₀ is independent of the altitude. The influences on image resolution of space-borne system and air-borne system caused by atmospheric turbulence are discussed through calculating r₀.