title: Two-channel hyperspectral LiDAR with a supercontinuum laser source.
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.
authors.affiliation: Department of Navigation and Positioning, Finnish Geodetic Institute, P.O. Box 15 02431 Masala, Finland. yuwei.chen@fgi.fi
authors.forename: Yuwei
authors.initials: Y
authors.lastname: Chen
authors.forename: Esa
authors.initials: E
authors.lastname: Räikkönen
authors.forename: Sanna
authors.initials: S
authors.lastname: Kaasalainen
authors.forename: Juha
authors.initials: J
authors.lastname: Suomalainen
authors.forename: Teemu
authors.initials: T
authors.lastname: Hakala
authors.forename: Juha
authors.initials: J
authors.lastname: Hyyppä
authors.forename: Ruizhi
authors.initials: R
authors.lastname: Chen
mesh_terms: D040362:Geographic Information Systems; D007834:Lasers; D008027:Light; D014197:Trees