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利用蒙特卡罗(Monte Carlo)方法对机载海洋激光雷达探测过程中,透过波动水表面向下传输的激光束质量受波动水表面影响的程度进行了模拟计算,并给出了定量结果和定性结论。为了获得水下传输的激光束质量相关数据,在传统的蒙特卡罗模型中引入了波动水表面影响模型和接收平面能量分布计算的功能。通过模拟计算,得到了不同海面风速条件下机载海洋激光雷达发出的高斯光束透过波动水表面后在接收平面上的能量分布,得出了随着海面风速的增加,高斯光束的光束质量不断下降,机载海洋激光雷达探测效果不断变差的结论。
The Monte Carlo method was used to simulate the laser beam mass transmitted downward from the fluctuating water surface during the detection of airborne Lidar by the fluctuating water surface. The quantitative results and Qualitative conclusion. In order to obtain the data about laser beam quality under underwater transmission, the function of fluctuating water surface influence model and receiving plane energy distribution calculation are introduced into the traditional Monte Carlo model. Through the simulation, the energy distribution of the Gaussian beam emitted by airborne LIDAR on the receiving plane under different sea surface wind speeds is obtained, and the beam quality of the Gaussian beam is constant with the increase of sea surface wind speed Decline, airborne ocean laser radar detection results continue to deteriorate conclusion.