高光谱激光雷达发展与展望

Development and prospects of hyperspectral LiDAR

摘要:

高光谱激光雷达结合了被动光学遥感与激光雷达主动探测的优势,能够同时获取目标的高精度三维空间信息及光谱数据,实现全天时和多谱段的光谱三维点云的高效精准获取。为此,首先回顾了高光谱激光雷达的发展历程,总结了其各组成模块的不同选择,着重梳理了发射和接收这2个核心模块的迭代过程。其次,介绍了高光谱激光雷达在植被监测和地质勘探等领域的应用。最后,分析了当前技术发展所面临的挑战,并对高光谱激光雷达未来的发展趋势进行了展望。

Abstract:

Hyperspectral LiDAR integrates the advantages of passive optical remote sensing and active LiDAR detection, enabling the simultaneous acquisition of high-precision 3-D spatial information and spectral data of the targets. It achieves efficient and accurate collection of multi-spectral 3-D point clouds around the clock. To this end, this paper first reviewed the development of hyperspectral LiDAR, summarized the various options for its components, and focused on the evolution of the two core modules of emission and reception . Secondly, it highlighted the applications in fields such as vegetation monitoring and geological exploration. Finally, it analyzed the current challenges and forecast future trends in hyperspectral LiDAR technology.