基于蒙特卡洛的紫外光多阶散射模型研究

吴志勇; 檀立刚; 李乐; 宋鹏; 宋程程

doi:10.13756/j.gtxyj.2026.250110

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基于蒙特卡洛的紫外光多阶散射模型研究

专题：面向6G的无线光通信 | 更新时间：2026-04-20

- 基于蒙特卡洛的紫外光多阶散射模型研究
- Research on a Monte Carlo-based Multi-Scattering Model for Ultraviolet Light
- 光通信研究 2026年第2期
- 作者机构：
  
  1.四川九洲电器集团有限责任公司　国防先进技术研究院，四川　绵阳　621000
  2.西安工程大学　电子信息学院，西安　710048
- 作者简介：
  
  吴志勇（1976-），男，四川内江人。高级工程师，硕士，主要研究方向为信号与信息系统、微系统设计和紫外光通信等。
  檀立刚，博士。E-mail：tlgbb@163.com
- 基金信息：
  
  陕西省自然科学基础研究计划资助项目(2023-JC-YB-548);陕西省教育厅科研计划资助项目(23JK0467);陕西省科学技术厅科技计划资助项目(2024JC-YBQN-O678)
- DOI：10.13756/j.gtxyj.2026.250110
  中图分类号： TN929.12
- 收稿：2025-08-08，
  
  修回：2025-08-20，
  
  纸质出版：2026-04-10
- 稿件说明：
移动端阅览
吴志勇，檀立刚，李乐，等. 基于蒙特卡洛的紫外光多阶散射模型研究[J]. 光通信研究，2026(2): 250110.

Wu Z Y, Tan L G, Li L, et al. Research on a Monte Carlo-based Multi-Scattering Model for Ultraviolet Light[J]. Study on Optical Communications, 2026(2): 250110.
吴志勇，檀立刚，李乐，等. 基于蒙特卡洛的紫外光多阶散射模型研究[J]. 光通信研究，2026(2): 250110. DOI： 10.13756/j.gtxyj.2026.250110.

Wu Z Y, Tan L G, Li L, et al. Research on a Monte Carlo-based Multi-Scattering Model for Ultraviolet Light[J]. Study on Optical Communications, 2026(2): 250110. DOI： 10.13756/j.gtxyj.2026.250110.

摘要

目的

针对紫外光多阶散射模型中散射相函数的闭合解求解复杂问题，文章提出了一种基于蒙特卡洛（MC）的接受-拒绝采样方法用于高效获取散射角。

方法

首先设定一个程序可抽样的包络函数来获取大量散射角，再利用包络函数与散射相函数的比值对获得的散射角进行筛选，最终将符合散射相函数分布的散射角代入MC光子算法中。文章对收发端不同参数下紫外光传输路径损耗和信道脉冲响应数值结果进行了仿真。

结果

仿真结果表明，发端仰角对紫外光传输路径损耗的影响大于收端仰角，接收视场角的改变对路径损耗具有显著影响。当收发端仰角增大时，信道脉冲响应的峰值减小，时延展宽也会相应增加。

结论

与大多数紫外光研究缺乏实验验证不同，文章利用团队自主研发的紫外光通信系统进行了对比实验。实验结果显示，文章所提基于MC的紫外光多阶散射模型与实验结果吻合良好，不同距离下的路径损耗误差均低于4 dB，验证了模型的有效性。

Abstract

Objective

To address the complexity of deriving closed-form solutions for the scattering phase function in ultraviolet light multiple scattering models

this paper proposes a Monte-Carlo (MC) based acceptance-rejection sampling method for efficient scattering angle sampling.

Methods

First

a programmatically sampleable envelope function was designed to generate numerous scattering angles. These angles were then filtered through the ratio of the envelope function to the scattering phase function. The qualified scattering angles conforming to the phase function distribution were subsequently incorporated into the MC photon algorithm to simulate path loss and channel impulse response under various transceiver parameters in ultraviolet light transmission.

Results

Simulation results demonstrate that the transmitter elevation angle exerts greater influence on path loss than the receiver elevation angle

while variations in the receiver's field of view significantly affect path loss. As both transceiver elevation angles increase

the peak value of channel impulse response decreases

accompanied by increase in delay spread.

Conclusions

Unlike most ultraviolet light studies lacking experimental validation

this work conducted comparative experiments using a self-developed ultraviolet communication system. Experimental results prove good agreement between the proposed MC based multiple scattering model and measured data

with path loss errors below 4 dB across different distances

thereby validating the model's effectiveness.

关键词

Keywords

references

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