大气与环境光学学报 ›› 2025, Vol. 20 ›› Issue (3): 353-366.doi: 10.3969/j.issn.1673-6141.2025.03.009

• “激光雷达新技术及其在大气环境中的应用”专辑 • 上一篇    

温湿度拉曼激光雷达系统仿真评估与验证

任超 1*, 徐绍涵 2*, 储雯 2, 叶倩 1, 杨双丞 2, 郭轩榛 2, 戴光耀 2, 查晶 1   

  1. 1 中国人民解放军93213 部队, 北京 100085; 2 中国海洋大学信息科学与工程学部海洋技术学院, 山东 青岛 266100
  • 收稿日期:2025-01-23 修回日期:2025-04-07 出版日期:2025-05-28 发布日期:2025-05-26
  • 通讯作者: E-mail: rc_2013@163.com; xushaohan@stu.ouc.edu.cn E-mail:xushaohan@stu.ouc.edu.cn
  • 作者简介:任 超 (1973- ), 硕士, 研究员, 主要从事大气探测及信息处理方面的研究。E-mail: rc_2013@163.com
  • 基金资助:
    温湿度拉曼激光雷达探测性能评估

Evaluation and validation of temperature and humidity Raman lidar simulation system

REN Chao 1*, XU Shaohan 2*, CHU Wen 2, YE Qian 1, YANG Shuangcheng 2, GUO Xuanzhen 2, DAI Guangyao 2, ZHA Jing 1   

  1. 1 Chinese People's Liberation Army 93213 Unit, Beijing 100085, China; 2 College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
  • Received:2025-01-23 Revised:2025-04-07 Online:2025-05-28 Published:2025-05-26
  • Contact: Shao-Han XU E-mail:xushaohan@stu.ouc.edu.cn

摘要: 温湿度拉曼激光雷达能够提供高时空分辨率、高精度的大气温湿度探测。本文基于大气拉曼散射激光雷达原 理, 搭建了包括激光发射系统、大气目标特性和光学传输特性、光学接收和探测系统的全链路仿真模型, 对四通道探 测信号进行模拟仿真和数据反演, 并将仿真结果与实测结果进行了比对。对比结果显示温度和湿度的决定系数分别 为0.999 和0.907, 验证了仿真模型的精准性。在此基础上, 进一步利用该仿真模型对激光雷达系统参数进行了优化, 通过针对发射和探测模块的参数迭代, 确定了以355 nm 作为激光雷达系统的发射激光中心波长, 选用353.5 nm 和 354 nm作为转动拉曼滤光片中心波长, 以提高系统的探测精度和灵敏度。

关键词: 激光雷达, 拉曼散射, 温湿度探测, 系统优化

Abstract: Temperature and humidity Raman lidar can detect atmospheric temperature and humidity with high spatiotemporal resolution and high accuracy. Based on the principles of atmospheric Raman scattering lidar, a comprehensive simulation model encompassing laser emission system, atmospheric target characteristics, optical transmission properties, and optical reception and detection systems was constructed in this work. Then the four-channel detection signals of Raman lidar was simulated and inverted, and the simulation results were compared with the actual measurements. The comparison results demonstrated that the determination coefficients of temperature and humidity are 0.999 and 0.907 respectively, validating the accuracy of the simulation model. On this basis, the simulation model was further employed to optimize the parameters of the Raman lidar system. By iterating the parameters of the emission and detection modules, the wavelength of 355 nm was determined as the center wavelength of the excitation light of the lidar system, and 353.5 nm and 354 nm were selected as the center wavelengths of the rotating Raman filters to improve the detection sensitivity and accuracy.

Key words: lidar, Raman scattering, temperature and humidity detection, system optimization

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