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Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source
Department of Navigation and Positioning, Finnish Geodetic Institute, P.O. Box 15 02431 Masala, Finland
Department of Remote Sensing and Photogrammetry, Finnish Geodetic Institute, P.O. Box 15 02431 Masala, Finland
Klastech GmbH, Konrad-Adenauer-Allee 11,D-44263 Dortmund, Germany
* Author to whom correspondence should be addressed.
Received: 18 June 2010; in revised form: 15 July 2010 / Accepted: 19 July 2010 / Published: 23 July 2010
Abstract: 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.
Keywords: hyperspectral LiDAR, prototype, range finder, NDVI
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Chen, Y.; Räikkönen, E.; Kaasalainen, S.; Suomalainen, J.; Hakala, T.; Hyyppä, J.; Chen, R. Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source. Sensors 2010, 10, 7057-7066.
Chen Y, Räikkönen E, Kaasalainen S, Suomalainen J, Hakala T, Hyyppä J, Chen R. Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source. Sensors. 2010; 10(7):7057-7066.
Chen, Yuwei; Räikkönen, Esa; Kaasalainen, Sanna; Suomalainen, Juha; Hakala, Teemu; Hyyppä, Juha; Chen, Ruizhi. 2010. "Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source." Sensors 10, no. 7: 7057-7066.