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Research of Calibration Technology of InterferenceHyperspectral Imager on Secondary Planet |
JI Zhong-ying, XIANG Li-bin, WANG Zhong-hou,HUANG Min, YUAN Yan |
(Xi'an Institute of Optics and Precision Mechanics of Science Academy,Xi'an710068,China) |
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Abstract This paper presents research of several calibration methods on secondary planet, according toprinciple and characteristic of the Interference Super-spectral Imager, and requirement of calibration onsecondary planet. A method of Calibration based at first image plane makes use of two ends of narrow slitor a hole beside it to introduce the calibration light. There are two methods of converging calibration light,one is using convergent lens, the others self-focus lens. In method of whole system calibration, calibrationlight can be introduced by rotating the mirror 90 degree. Lambert reflector or integral sphere can be usedin this calibration. Place Nd-in glass in optical circuit can achieve both radiometric calibration and spectralcalibration. In actual, Analyzing the structure and characteristic, according to optic design and realizationpossibility of structure, a method of integral sphere used in calibration is chosen. By contrast, acalibration method of using integral sphere has compact structure and large energy, can be used to achievethe calibration of total system, aperture, and part viewing field.
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Received: 15 November 2003
Published: 26 December 2011
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〔1〕 马文波.对地观测旋转扫描辐射计星上定标系统设计〔J〕.航天返回与遥感,1998,19(1):25~28.〔2〕 顾名澧.多光谱扫描仪的星上辐射定标系统〔J〕.航天返回与遥感,1998,19(3):21~25.〔3〕 王忠厚,计忠瑛.轻型高灵敏度干涉成像光谱仪实验室绝对光谱定标与星上相对辐射度定标〔J〕.863航天技术通讯,1999,10:55~61.〔4〕 相里斌,计忠瑛,黄,等.空间调制干涉成像光谱仪定标技术研究〔J〕.光子学报,2004,33(7):850~853.〔5〕 Yarbrough S, Otten L J. MightySatⅡ. 1 HyperspectralImager: Summary of On-orbit Performance〔J〕SPIE, 2002,4480:186~197.〔6〕 相里斌,赵葆常,薛鸣球.空间调制干涉成像光谱技术〔J〕.光学学报,1998,18(1):18~27. |
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