18 April 2005 Modeling wind in simulations of atmospheric optical propagation
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Abstract
In our attempt to better characterize optical turbulence effects, we generalized the common split-step approach of propagation simulations to spatio-temporal simulations. The time dimension is introduced by making a "local frozen turbulence assumption" which states that the local changes of the medium are dominated by wind transport and can be fully characterized by a (local) mean wind vector. We make a second simplifying assumption by neglecting wind components in the direction of propagation. The shifting theorem of Fourier theory is used in our implementation of the relative movement of the medium. As an example application, an optical downlink from a LEO satellite is illustrated and the fluctuations of the received optical field are estimated.
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Nicolas Perlot, Nicolas Perlot, Joachim Horwath, Joachim Horwath, Ralf Juengling, Ralf Juengling, } "Modeling wind in simulations of atmospheric optical propagation", Proc. SPIE 5712, Free-Space Laser Communication Technologies XVII, (18 April 2005); doi: 10.1117/12.590700; https://doi.org/10.1117/12.590700
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