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19 October 2016 Development of automated self-calibration spectra-radiometer
Xin Li, Li-na Xun, En-chao Liu, Yan-na Zhang, Wen-chao Zhai, Wei Wei, Quan Zhang, Gang-gang Qiu, Xiao-bing Zheng
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Proceedings Volume 10155, Optical Measurement Technology and Instrumentation; 101553W (2016) https://doi.org/10.1117/12.2247557
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
Test site vicarious calibration provides an absolute radiometric calibration for sensors. Surface reflectance is a critical parameter to be measured during a vicarious calibration field campaign. In order to realize long-term high precision observations of surface spectral reflectance in solar reflective bands, Automated Self-Calibration Spectra-Radiometer (ASCSR) was developed. ASCSR measures the global irradiance and the ground reflected radiance respectively with high spectral resolution from 400nm-2400 nm, the ratio of the two measurements is the surface reflectance. The degradation influences of instrument sensors and optical elements are removed by ratio-measurements and self-calibration. In the past two years ASCSR deployed in Dunhuang test site for continuous spectral reflectance measurements over 4 weeks. The measurements result of ASCSR is compared with traditional measurements which used SVC spectra-radiometer.
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Xin Li, Li-na Xun, En-chao Liu, Yan-na Zhang, Wen-chao Zhai, Wei Wei, Quan Zhang, Gang-gang Qiu, and Xiao-bing Zheng "Development of automated self-calibration spectra-radiometer", Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101553W (19 October 2016); https://doi.org/10.1117/12.2247557
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KEYWORDS
Calibration
Reflectivity
Spectral calibration
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