title: [Spectral calibration of hyperspectral imager based on spectral absorption target].
abstract: Retrieval of center wavelength and bandwidth is a key step for quantitative analysis of hyperspectral data. The present paper proposes a spectral calibration method of hyperspectral imager, whose spectrum covers visible and near-infrared band, using spectral absorption target. Ground calibration experiment was designed for a hyperspectral imager with a bandwidth of 6 nm. Hyperspectral imager and ASD spectrometer measured the same spectral absorption target synchronously. Reflectance spectrum was derived from the different data set. Center wavelength and bandwidth were retrieved by matching the reflectance data from hyperspectral imager and ASD spectrometer. The experiment result shows that this method can be applied in spectral calibration of hyperspectral imagers to improve the quantitative studies on hyperspectral imagery.
authors.affiliation: Institute of RS & GIS, School of Earth and Space Science, Peking University, Beijing 100871, China. gouzhiyang@163.com
authors.forename: Zhi-Yang
authors.initials: ZY
authors.lastname: Gou
authors.forename: Lei
authors.initials: L
authors.lastname: Yan
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Hong-Ying
authors.initials: HY
authors.lastname: Zhao
authors.forename: Zhong-Yi
authors.initials: ZY
authors.lastname: Yin
authors.forename: Yi-Ni
authors.initials: YN
authors.lastname: Duan