Novel Simulation and Analysis of Mie-Scattering Lidar for Detecting Atmospheric Turbulence Based on Non-Kolmogorov Turbulence Power Spectrum Model

Abstract

The Mie-scattering lidar can detect atmospheric turbulence intensity by using the return signals of Gaussian beams at different heights. The power spectrum method and Zernike polynomial method are used to simulate the non-Kolmogorov turbulent phase plate, respectively, and the power spectrum method with faster running speed is selected for the subsequent simulation. In order to verify the possibility of detecting atmospheric turbulence by the Mie-scattering lidar, some numerical simulations are carried out. The power spectrum method is used to simulate the propagation of the Gaussian beam from the Mie-scattering lidar in a vertical path. The propagation characteristics of the Gaussian beam using a non-Kolmogorov turbulence model are obtained by analyzing the intensity distribution and spot drift effect. The simulation results show that the scintillation index of simulation is consistent with the theoretical value trend, and the accuracy is very high, indicating that the method of atmospheric turbulence detection using Mie-scattering lidar is effective. The simulation plays a guiding role for the subsequent experimental platform construction and equipment design.

Novel Detection of Atmospheric Turbulence Profile Using Mie-Scattering Lidar Based on Non-Kolmogorov Turbulence Theory

“…In summary, the atmospheric turbulence detection method adopted is as follows: based on RTS theory, first, the scintillation index at each distance is obtained according to Equation (2); then, the variation trend of and along the propagation path is obtained according to Equation (5), and finally, the atmospheric turbulence profile can be obtained. Before the experiment, we carried out some systematic simulation studies to ensure the feasibility of the experimental scheme and the selection of system parameters [ 30 , 31 ].…”

Longitudinal spatial coherence of computational ghost imaging through atmospheric turbulence

“…In recent years, the properties of GI or CGI in atmospheric propagation have been studied by some experiments and theoretical analysis [17][18][19][20]. For example, the effects of Kolmogorov turbulence and non-Kolmogrov turbulence on CGI have been investigated experimentally in [21,22], respectively, which show that atmospheric turbulence has a degrading effect on the image quality. Zhao et al have investigated the influence of turbulent atmosphere on the holographic ghost imaging (HGI), and the experimental results show that atmosphere turbulence seriously affects the imaging resolution [23].…”