[1]王 浩,晋利兵,李 岩,等.基于温度修正的GF-5全谱段光谱成像仪热红外谱段辐射定标[J].红外技术,2020,42(6):547-551.[doi:doi:10.11846/j.issn.1001_8891.202006006]
 WANG Hao,JIN Libing,LI Yan,et al.Radiation Calibration of Thermal Infrared Bands of GF-5 VIMI Based on Temperature Correction [J].Infrared Technology,2020,42(6):547-551.[doi:doi:10.11846/j.issn.1001_8891.202006006]
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基于温度修正的GF-5全谱段光谱成像仪热红外谱段辐射定标
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
42卷
期数:
2020年第6期
页码:
547-551
栏目:
出版日期:
2020-06-23

文章信息/Info

Title:
Radiation Calibration of Thermal Infrared Bands of GF-5 VIMI
Based on Temperature Correction
文章编号:
1001-8891(2020)06-0547-05
作者:
王 浩12晋利兵12李 岩1赵艳华1
1. 北京空间机电研究所,北京 100094;2. 中国空间技术研究院 天基空间目标监视技术核心专业实验室,北京 100094
Author(s):
WANG Hao12JIN Libing12LI Yan1ZHAO Yanhua1
1. Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China;
2. Key Laboratory for Space-Based Target Monitoring Technology of CAST, Beijing 100094, China
关键词:
高分五号绝对辐射定标热红外遥感HgCdTe探测器温度修正
Keywords:
 GF-5 absolute radiation calibration thermal infrared remote sensing HgCdTe detector temperature revise
分类号:
V443.5
DOI:
doi:10.11846/j.issn.1001_8891.202006006
文献标志码:
A
摘要:
针对GF-5全谱段光谱成像仪热红外谱段存在响应异常、辐射定标精度难以保障的问题,开展了地面辐射定标补充试验,发现热红外谱段响应对仪器内部温度、焦面温度变化敏感是导致异常现象的主要原因。进一步对相机输出信号值随仪器内部温度、焦面温度变化规律进行了分析总结,提出了基于仪器温度、焦面温度修正的绝对辐射定标算法,成功应用于全谱段光谱成像仪热红外谱段的实验室绝对辐射定标,结果表明定标不确定性为1.36%。
Abstract:
Owing to the abnormal response of the thermal infrared bands of the visible infrared multi-spectral imager (VIMI) aboard GF-5 satellite it is challenging to guarantee the radiometric calibration accuracy; considering this fact, we conducted a supplementary test of ground radiometric calibration. We obtained that the response sensitivity of the thermal infrared bands to the change of instrument cavity temperature and the focal plane temperature was the main reason for this abnormal phenomenon. Furthermore, we analyzed and summarized the law of output signal changing with instrument cavity temperature and focal plane temperature. An absolute radiation calibration algorithm based on instrument temperature and focal plane temperature revise was proposed. It was successfully applied to laboratory absolute radiation calibration of thermal infrared bands of VIMI. The results show that the uncertainty of calibration is 1.36%.

参考文献/References:

[1] 赵艳华, 戴立群, 白绍竣, 等. 全谱段光谱成像仪系统设计及实现[J]. 航天返回与遥感, 2018(3): 38-50.
ZHAO Yanhua, DAI Liqun, BAI Shaojun, et al. Design and implementation of the visible infrared multi-spectral imager[J]. Aerospace Return and Remote Sensing, 2018(3): 38-50.
[2] 曾戈虹. HgCdTe红外探测器性能分析[J]. 红外技术, 2012, 34(1): 1-3.
ZENG Gehong. Performance HgCdTe infrared detector at different temperatures[J]. Infrared Technology, 2012, 34(1): 1-3.
[3] Bezawada N, Ives D, Woodhouse G. Characterization of VISTA IR detectors[C]//Proc. of SPIE, 2004, 5499: 23-34.
[4] XIONG X, CHIANG K, ESPOSITO J, et al. MODIS on-orbit calibration and characterization[J]. Metrologia, 2003, 40(1): S89.
[5] XIONG X, BUTLER J, CHIANG K, et al. VIIRS on-orbit calibration methodology and performance[J]. Journal of Geophysical Research Atmospheres, 2014, 119(9): 5065-5078.
[6] XIONG X, BUTLER J, CHIANG K, et al. VIIRS on-orbit calibration and performance update[C]// Geoscience and Remote Sensing Symposium of IEEE, 2014: 1389-1392.
[7] MARKHAM B L, BARSI J A, KAITA E, et al. Radiometric calibration and stability of the Landsat-8 operational land imager(OLI)[C]//Proc. of SPIE, 2015: 206-219.
[8] PAHLEVAN N, LEE Z, WEI J, et al. On-orbit radiometric characterization of OLI (Landsat-8) for applications in aquatic remote sensing[J]. Remote Sensing of Environment, 2014, 154: 272-284.

备注/Memo

备注/Memo:
收稿日期:2019-04-03;修订日期:2019-07-13.
作者简介:王浩(1988-)男,工程师,硕士。研究方向是空间光学遥感器总体设计。E-mail:wanghao9490@163.com。
基金项目:国家重大科技专项工程。
更新日期/Last Update: 2020-06-22