场景光谱模拟定标光源的设计技术

翟文超; 陆俊桦; 郑小兵

doi:doi:10.3969/j.issn.1673-6141.2014.01.004

大气与环境光学学报, 2014, 9 (1): 22, 网络出版: 2014-02-18

场景光谱模拟定标光源的设计技术

Design Technique of Calibration Source Used to Simulate Spectra in Scene

论文大纲

翟文超 ^*陆俊桦郑小兵

作者单位

中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室, 安徽合肥 230031

场景光谱光谱模拟定标光源遥感 spectra in scene spectral simulation calibration source remote sensing

摘要

为了解决定标光源和遥感仪器观测场景中目标光谱之间的光谱非匹配问题,有效保证遥感仪器的定标精度,目标光谱模拟技术成为当前定标光源技术的重要发展方向。调研了定标领域中,场景目标光谱模拟定标光源技术的发展及应用案例。以数字微镜器件为例,叙述了一种基于空间光调制技术的目标光谱模拟定标光源的设计方法。这种新型的定标光源除了能够实现目标光谱的模拟,还可与标准探测器相结合,提高辐射度量的定标精度,在高光谱成像仪定标方面具有重要的应用前景。

Abstract

To resolve the problem of mismatch between the target spectra viewed by remote sensors and spectra of calibration source, and effectively guarantee the calibration accuracy, the target spectra simulation technology is a very promising evolution trend for calibration sources. The development and applications of calibration source technology used to simulate target spectra in scene in the domain of optical calibration were presented. The design of a spectrally tunable light source based on digital micromirror device (DMD) was described as an example to illuminate the design method of sources based on spatial light modulator. Besides possessing the function of target spectra simulation, this novel calibration source can be combined with the standard detector. So it is useful to improve the calibration accuracy of sensors, and can be extremely promising for calibrating hyperspectral imagers.

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翟文超, 陆俊桦, 郑小兵. 场景光谱模拟定标光源的设计技术[J]. 大气与环境光学学报, 2014, 9(1): 22. ZHAI Wen-chao, LU Jun-hua, ZHENG Xiao-bing. Design Technique of Calibration Source Used to Simulate Spectra in Scene[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(1): 22.

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