基于修正蒙特卡罗方法的光脉冲传输模拟

摘要

针对现有的蒙特卡罗(Monte Carlo)法在模拟光脉冲传输时没有考虑大气-海水界面的边界条件,对经过介质界面以及到达接收平面的光子提出了修正的Monte Carlo方法,对到达水下接收平台的光脉冲传输多径时间延迟和光斑分布进行了仿真研究.光传输模拟结果表明,使用修正的Monte Carlo方法考虑了边界条件的影响,减少光脉冲传输仿真的误差.%Aiming at simulation of laser pulsed propagation through the existing Monte Carlo methods which neglect the boundary condition of air-sea interface, the study propose a revising Monte Carlo method that photons pass through air-sea interface or submerged platform, and simulate multipath time delays and energy distributions of laser pulse which arrive the submerged platform. The result indicates that revising Monte Carlo method consider the boundary condition and reduces simulated errors of laser pulsed propagation.