14 October 2010 Onboard spectral calibration for the Japanese hyper-spectral sensor
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Proceedings Volume 7826, Sensors, Systems, and Next-Generation Satellites XIV; 782625 (2010); doi: 10.1117/12.866054
Event: SPIE Remote Sensing, 2010, Toulouse, France
Abstract
The Japanese hyper-spectral sensor provides data products covering continuous spectral bands in the wavelength range from 400 nm to 2500 nm. It is characterized by a SNR of > 450 in the VNIR and>300 in the SWIR range at a ground resolution of 30 m x30 m. This report is concerned with the onboard wavelength calibration methods for the Japanese hyper-spectral sensor. As a result of trade study, the combination of a transmission type glass filter containing rare earth oxides, a Mylar polyester film and a quartz tungsten-halogen-lamp was selected. This method covers the wavelength range from 400 nm to 2450 nm. For the purpose of wavelength shift estimation, the method employing the mean square deviation as merit-function was found to be stable and precise. The accuracy of the absorption peak wavelength determination will be expected less than 2% (=0.2 nm) for the VNIR spectral resolution and 5% (=0.625 nm) for the SWIR spectral resolution.
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Kenji Tatsumi, Nagamitsu Ohgi, Hisashi Harada, Toneo Kawanishi, Fumihiro Sakuma, Yoshito Narimatsu, Hitomi Inada, Takahiro Kawashima, Akira Iwasaki, "Onboard spectral calibration for the Japanese hyper-spectral sensor", Proc. SPIE 7826, Sensors, Systems, and Next-Generation Satellites XIV, 782625 (14 October 2010); doi: 10.1117/12.866054; https://doi.org/10.1117/12.866054
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KEYWORDS
Sensors

Short wave infrared radiation

Absorption

Calibration

Signal to noise ratio

Optical filters

Lamps

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