Abstract
Now it is indisputable fact that the Earth’s aerosphere contains Kolmogorov and non-Kolmogorov turbulence, which has been confirmed by increasing experimental evidences and theoretical investigations. Based on this, the scientific community conducts investigations on the combined influence of Kolmogorov turbulence and non-Kolmogorov one on optical wave propagating in the aerosphere. In this paper, based on the further additional measurements, a three-layer altitude-dependent turbulent spectrum model of refractive-index fluctuations for vertical/slant path is proposed to describe the variations of turbulent statistical characteristics with altitude in the aerosphere. This model that is more accurate than the two-layer model is used to estimate the performance of laser-satellite communication system for satellite-to-ground link. Using the extended Rytov theory, the scintillation index of a plant wave propagating through Kolmogorov and non-Kolmogorov turbulence along laser-satellite communication downlink at large zenith angles is presented. It is noteworthy that this expression is also valid in all regimes of turbulent fluctuations.
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Du, W., Cheng, X., Wang, Y. et al. Scintillation Index of a Plane Wave Propagating Through Kolmogorov and Non-Kolmogorov Turbulence along Laser-Satellite Communication Downlink at Large Zenith Angles. J Russ Laser Res 41, 616–627 (2020). https://doi.org/10.1007/s10946-020-09916-3
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DOI: https://doi.org/10.1007/s10946-020-09916-3