摘要
水体激光雷达技术探测水下光学信息具有不受太阳光源限制可昼夜连续观测,灵活调节垂向距离和横向扫描分辨率,获取逐层水下光学特性(散射、衰减等)和水质参数(悬浮物、叶绿素等)垂向分布信息等独特优势。随着高重频、大功率、窄脉宽激光技术的不断发展,水体激光雷达已广泛应用于水文测量、河湖调查等领域。介绍水体激光雷达的基础结构,综述近年来国内外在水体光学探测领域的研究现状和存在的问题,并进行了展望。研究认为,未来水体激光雷达的研究重点将包括激光光束及其回波信号的三维辐射传输模拟、定标检验以及多源数据融合。通过综述现有水体激光雷达光学探测方面的应用研究成果和问题,并提供参考依据,有助于为水体激光雷达的应用打下重要基础、深入理解和把握水体激光雷达应用研究的方向。
Water LiDAR detection technology offers unique advantages such as being unrestricted by sunlight,enabling continuous day and night observations,and allowing flexible adjustment of vertical and lateral scanning resolution.It can obtain vertical distribution information of underwater optical characteristics,including scattering and attenuation,as well as water quality parameters such as particulate matter and chlorophyl.With the ongoing developments in high repetition rate,high power,and narrow pulse width laser technology,water LiDAR has found extensive applications in hydrological measurement,river and lake surveys.This article introduces the basic structure of water LiDAR,summarizes the research status and existing problems of LiDAR technology in the field of water quality and aquatic optical detection at home and abroad in recent years,and provides prospects.The research believes that the three-dimensional radiation transmission simulation of laser beams and echo signals,calibration verification,and multi-source data fusion will be the focus of future research on water LiDAR.By summarizing and sorting out the application research results of existing water LiDAR and clarifying the problems,it lays an important foundation for the application of water LiDAR in the water conservancy industry and provides a reference basis for a deeper understanding and grasp of the research direction of water LiDAR applications.
作者
高辰源
雷少华
金秋
李广英
Gao Chenyuan;Lei Shaohua;Jin Qiu;Li Guangying(National Key Laboratory of Water Disaster Prevention,Nanjing Hydraulic Research Institute,Nanjing 210029,Jiangsu,China;Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province,Soochozw University,Suzhou 215006,Jiangsu,China;State Key Laboratory of Transient Optics and Photonics,Xi'an Institute of Optics and Precision Mechanics of CAS,Xi'an 710119,Shaanzi,China)
出处
《应用激光》
北大核心
2025年第1期209-222,共14页
Applied Laser
基金
国家自然科学基金项目(42101384)
江苏省自然科学基金项目(BK20210043)
国家重点研发计划(2023YFC3208903)
江苏省先进光学制造技术重点实验室开放基金(KJS2141)
南京水利科学研究院中央级公益性科研院所基本科研业务费专项资金项目(Y922003)
水利部水库大坝安全重点实验室开放研究基金(YK323011)。
作者简介
高辰源(2000-),女,硕士研究生。研究方向为水利遥感。E-mail:cygao@nhri.cn*通信作者:雷少华(1991-),男,博士,高级工程师。研究方向为激光雷达与水利遥感。E-mail:shaohualei@nhri.cn。
