基于部分均匀采样的蒙特卡洛仿真模型

Monte Carlo simulation model based on partial uniform sampling

针对海面紫外光散射传输中存在的衰减问题,提出了一种基于部分均匀采样的蒙特卡洛仿真模型。该模型考虑到海平面上空气中的粒子浓度较高导致能见度较低的情况,对距离参数采用重要性采样方法,而对方向参数中的天顶角则采用均匀采样方法。仿真结果表明:与传统的蒙特卡洛仿真模型相比,在保证相同性能的前提下,所提出的模型能够显著提高计算效率,计算效率提升了约5个数量级,非常适合应用于海上千米量级的实际传输场景。

Aiming at the attenuation problem in the scattering transmission of ultraviolet light on the sea surface,a Monte Carlo simulation model based on partially uniform sampling is proposed.The model takes into account the low visibility caused by the high concentration of particles in the air at sea level,and adopts the importance sampling method for the distance parameter and the uniform sampling method for the zenith angle in the direction parameter.The simulation results show that compared with the traditional Monte Carlo simulation model,the proposed model significantly improves computational efficiency while maintaining the same performance.The computational efficiency is improved by approximately five orders of magnitude,making it very suitable for practical transmission scenarios involving distances on the order of kilometers at sea.