水下无人系统学报2023，Vol.31Issue(6)：864-870,7.DOI:10.11993/j.issn.2096-3920.202212003
尾流气泡幕中光子传输时间Monte Carlo仿真
Monte Carlo Simulation of Photon Transmission Time in Wake Bubble Curtain
摘要
Abstract
At present,the Monte Carlo simulation of the wake bubble curtain is mostly used to simulate the photon scattering direction,and few scholars have studied the distribution of photon transmission time.In this paper,based on the volume scattering function of Henyey-Greestein,a forward scattering model of pulsed laser in water was established.The propagation process of photons in bubble curtain was simulated by the Monte Carlo method based on this model,and the distribution of transmission time of photons in water containing bubble curtain was obtained.The model was used to simulate the photon transmission time under different bubble curtain thicknesses,bubble sizes,and detection distances.The simulation results show that greater thickness of the bubble curtain indicates longer photon transmission time in the bubble curtain and greater backward movement of the pulsed laser,which is manifested as a broader and wider pulsed laser.A larger bubble size represents a greater scattering degree of the laser by the bubble and greater backward movement of the pulsed laser.As the distance between the laser light source and the bubble curtain becomes larger,the photon transmission time is shifted backward,and the pulse width and peak intensity change slightly.According to the start-stop time of photons detected by the detector and the peak change of photon number,the characteristics of wake can be reflected,thus realizing the accurate positioning,identification,and measurement of wake.关键词
尾流/脉冲激光/气泡幕/Henyey-Greestein函数/Monet Carlo仿真Key words
wake/pulsed laser/bubble curtain/Henyey-Greestein function/Monet Carlo simulation分类
军事科技引用本文复制引用
闫林波,张建生..尾流气泡幕中光子传输时间Monte Carlo仿真[J].水下无人系统学报,2023,31(6):864-870,7.基金项目
陕西省重点研发计划项目(2023-YBGY-016) （2023-YBGY-016）
西安市未央区科技计划项目(201843). （201843）
