HJ-1A/B星CCD相机在轨辐射性能检测分析

大气与环境光学学报 ›› 2014, Vol. 9 ›› Issue (1): 29-36.

• “光学遥感定标技术及应用”专辑 • 上一篇下一篇

HJ-1A/B星CCD相机在轨辐射性能检测分析

韩启金, 傅俏燕, 张学文, 王爱春, 刘李

（中国资源卫星应用中心, 北京 100094）

收稿日期:2013-10-28 修回日期:2013-11-27 出版日期:2014-01-28 发布日期:2014-01-09
通讯作者: 韩启金(1983-)，男，河北承德人，硕士，工程师，主要从而卫星光学载荷性能检测评价与遥感定量化等方面的研究。 E-mail:cresda_hanjin@126.com
作者简介:韩启金(1983-)，男，河北承德人，硕士，工程师，主要从而卫星光学载荷性能检测评价与遥感定量化等方面的研究。
基金资助:
国家高技术研究发展计划（“863”计划）重点项目（No.2012AA12A302）资助

Validation and Analysis of In-Flight Radiation Properties of CCD Camera on HJ-1A/B Satellite

HAN Qi-jin, FU Qiao-yan, ZHANG Xue-wen, WANG Ai-chun, LIU Li

（China Center for Resources Satellite Date and Application, Beijing 100094, China）

Received:2013-10-28 Revised:2013-11-27 Published:2014-01-28 Online:2014-01-09

摘要/Abstract

摘要：

为检测分析HJ-1A/B星CCD相机在轨辐射探测性能及其辐射定标的有效性，提出了基于多种光学特性地面目标的在轨检测方法。首先，介绍了HJ-1A/B星CCD相机在轨辐射性能检测方法，并基于2013年HJ-1A/B卫星地面同步观测试验数据，获取了HJ-1A/B星过境时刻的卫星入瞳处等效辐亮度。然后以该等效辐亮度为基准，对HJ-1A/B星CCD相机历次在轨辐射定标结果进行检验，分析HJ-1A/B星CCD相机的在轨运行期间辐射探测性能变化趋势。结果表明：HJ-1A/B星在轨运行过程中，辐射性能在不断发生变化；在轨运行5年多时间里，HJ-1A/B星的CCD相机各波段的辐射性能平均衰变量最低为3.7%，最大为39.6%；为保证遥感数据的定量化精度，定期的在轨绝对辐射定标十分必要。

关键词: HJ-1A/B星, CCD相机, 辐射性能, 检测分析

Abstract:

In order to analyze the radiation property changing and the validity of calibration for HJ-1A/B CCD cameras, a validation method based on multi-spectral reflectance field targets is developed. Firstly, the in-flight validation method for radiation properties of HJ-1A/B CCD is introduced, and the equivalent radiance of HJ-1A/B CCD was calculated by using satellite-field synchronous measurements data in 2013. Then the radiometric calibration results of HJ-1A/B CCD are validated, and the trend of change of in-flight radiation properties of HJ-1A/B CCD is analyzed. The results show that the radiation properties of HJ-1A/B CCD change ceaselessly, and the attenuation of radiation properties of HJ-1A/B CCD is from 3.7% to 39.6% since launched, in-flight calibration for satellites is important to satisfy requirement of quantitative applications of remote sensing data.

Key words: HJ-1A/B satellite, CCD, radiation properties, validation and analysis

中图分类号:

韩启金傅俏燕张学文王爱春刘李. HJ-1A/B星CCD相机在轨辐射性能检测分析[J]. 大气与环境光学学报, 2014, 9(1): 29-36.

HAN Qi-Jin, FU Qiao-Yan, ZHANG Xue-Wen, WANG Ai-Chun, LIU Li. Validation and Analysis of In-Flight Radiation Properties of CCD Camera on HJ-1A/B Satellite[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(1): 29-36.

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HJ-1A/B星CCD相机在轨辐射性能检测分析

Validation and Analysis of In-Flight Radiation Properties of CCD Camera on HJ-1A/B Satellite

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