三维激光水面漫反射能量分布特性研究

为了提高卫星海色遥感技术在实际应用中的效率,对不同海况下,不同入射角度时的三维激光海面漫反射特性进行了建模仿真计算,并在实验室条件下对激光入射波动水面后产生的散射场的能量分布特性进行了研究。首先,根据麦克斯韦尔方程和边界条件对散射场在各个方向上的分量之间的耦合关系进行了研究,并列出矩阵方程;然后,利用三维锥形波对入射激光束进行了模拟;最后,通过前后向迭代法结合谱加速方法求解矩阵方程,得出三维双站散射系数,并通过实验对仿真结果加以验证。结果表明该方法能够准确地表示波动水面的三维激光漫反射特性,为进一步研究三维激光海面漫反射特性奠定了基础。

Study on 3D characteristics of laser diffusion from water surface

To enhance the efficiency of ocean color remote sense technology,the 3D characteristics of laser diffusion from water surface in different sea conditions and different incident angles were modeling and simulated,and energy distribution characteristics of scattered field after laser incidence were studied in the laboratory. Firstly,the coupling relationships among components in different directions were analyzed and the corresponding matrix equations were obtained with Maxwell equations and boundary conditions. Secondly,the 3D model of incident laser beam was established with 3D tapered wave. Finally,the 3D BSC was gotted and was verified by experiments. The results show that this method can accurately express the characteristics of laser diffusion from water surface.