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- W2033695457 abstract "The multiple phase screens and Fourier-transform algorithm for numerical simulation of beam propagation throughatmospheric turbulence is important for imaging problems, lidar or laser radar. In this work Fast-Fourier-transform-basedmodel of phase screens are used to simulate the propagation of a radar beam. The refractive-index power spectrum usedfor phase screen generation is the so-called modified atmospheric spectrum defined by L C Andrews. The standardcompensations used to correct the undersampling at low spatial frequencies are improved, and the limitations andnumerical requirements for a simulation of given accuracy are established. By using the improved algorithm, thescintillation index of gaussian beams propagation through atmospheric turbulence is studied. Comparisons of simulationswith analytic results are presented. The on-axis theoretical scintillation index is compared with simulated results atdifferent ranges and good agreement is shown between numerical simulation and theoretical results." @default.
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- W2033695457 date "2007-11-29" @default.
- W2033695457 modified "2023-09-27" @default.
- W2033695457 title "Numerical simulation of beam propagation through atmospheric turbulence for laser radar" @default.
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- W2033695457 doi "https://doi.org/10.1117/12.756658" @default.
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