新型对地观测多光谱激光雷达及其控制实现

A Novel Multi-spectral LiDAR for Earth Observation and Implementation of Control System

提出新型对地观测多光谱激光雷达,采用556nm、660nm、705nm和785nm共4个波长,进行不同波长同时收发及扫描、测距设计,通过对扫描、测距及多光谱数据采集等操作的有效控制,实现了地物三维空间数据和多光谱数据的同步获取,并且通过地面实验对多光谱激光雷达的性能进行了展示,验证了系统设计及控制实现的可行性及优势。

The technology of multi-spectral LiDAR, which combines the advantages of tradi- tional LiDAR and passive multispectral remote sensing, is becoming a new developing direc- tion in the field of earth observation. In order to solve the existing technology defects, a no- vel multi-spectral LiDAR was proposed. Both 3D spatial and multi-spectral information for objects can be obtained by this method. Through simultaneous transmission and reception for four wavelengths in 556 nm, 660 nm, 705 nm and 785 nm, 3D spatial data and multi- spectral data were acquired at the same time with the available control of different opera- tions. Ranging, scanning and acquisition operations of multi-spectral data could be achieved and the experiment based on the ground was made to testify the ability of the the system de sign and control implementation.