Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source

Sensors

Yuwei Chen¹  Esa Räikkönen²  Sanna Kaasalainen²  Juha Suomalainen²  Teemu Hakala²  Juha Hyyppä² 

[1] Department of Navigation and Positioning, Finnish Geodetic Institute, P.O. Box 15 02431 Masala, Finland; E-Mail:;Department of Remote Sensing and Photogrammetry, Finnish Geodetic Institute, P.O. Box 15 02431 Masala, Finland; E-Mails:

关键词: hyperspectral LiDAR;    prototype;    range finder;    NDVI;   

DOI  :  10.3390/s100707057

来源: mdpi

【 摘 要 】

Recent advances in nonlinear fiber optics and compact pulsed lasers have resulted in creation of broadband directional light sources. These supercontinuum laser sources produce directional broadband light using cascaded nonlinear optical interactions in an optical fibre framework. This system is used to simultaneously measure distance and reflectance to demonstrate a technique capable of distinguishing between a vegetation target and inorganic material using the Normalized Difference Vegetation Index (NDVI) parameters, while the range can be obtained from the waveform of the echoes. A two-channel, spectral range-finding system based on a supercontinuum laser source was used to determine its potential application of distinguishing the NDVI for Norway spruce, a coniferous tree, and its three-dimensional parameters at 600 nm and 800 nm. A prototype system was built using commercial components.

【 授权许可】

CC BY   
© 2010 by the authors licensee MDPI, Basel, Switzerland.