| 我国新一代极轨气象卫星红外分光计真空辐射定标试验 |
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| 引用本文： | 漆成莉,殷德奎,王模昌,董超华,张鹏,马刚.我国新一代极轨气象卫星红外分光计真空辐射定标试验[J].气象科技,2009,37(5):572-575. |
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| 作者姓名： | 漆成莉 殷德奎 王模昌 董超华 张鹏 马刚 |
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| 作者单位： | 1. 中国气象局中国遥感卫星辐射测量和定标重点开放实验室,国家卫星气象中心,北京,100081
2. 中国科学院上海技术物理研究所,上海,200083 |
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| 基金项目： | “极轨气象卫星低光谱红外探测仪器性能指标评价规范”项目资助 |
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| 摘 要： | 为了测试红外分光计红外通道的辐射探测性能,确定仪器地面参考定标系数,为分析反演产品误差提供依据,星载仪器的地面定标是仪器上星前必须要做的一项重要工作。基于我国新一代气象卫星红外分光计热真空定标试验数据,利用仪器通道接收的入射辐射与其输出信号值的相关特性,采用统计回归方法,建立了二者之间的转换关系,得到了热红外通道的定标系数,分析了红外分光计红外通道输入辐射量与输出信号的非线性响应。当目标黑体温度为290 K时,计算了仪器的灵敏度。结果表明:红外分光计存在一定的非线性响应,在220~330 K的目标温度范围内非线性偏差大都在0.4 K以内,仪器灵敏度达到了设计指标要求。
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| 关 键 词： | 辐射定标 红外分光计 气象卫星 |
| 收稿时间： | 7/3/2008 12:00:00 AM |
| 修稿时间： | 9/3/2009 12:00:00 AM |
Vacuum Radiometic Calibration of IRAS Boarded on New Generation Meteorological Satellite |
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| Qi Chengli,Yin Dekui,Wang Mochang,Dong Chaohu,Zhang Peng and Ma Gang.Vacuum Radiometic Calibration of IRAS Boarded on New Generation Meteorological Satellite[J].Meteorological Science and Technology,2009,37(5):572-575. |
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| Authors: | Qi Chengli Yin Dekui Wang Mochang Dong Chaohu Zhang Peng and Ma Gang |
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| Institution: | Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), National Satellite Meteorological Center, Beijing 100081;Shanghai Institute of Technical Physics, Shanghai 200083;Shanghai Institute of Technical Physics, Shanghai 200083;Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), National Satellite Meteorological Center, Beijing 100081;Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), National Satellite Meteorological Center, Beijing 100081;Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), National Satellite Meteorological Center, Beijing 100081 |
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| Abstract: | In order to test the radiation sounding performance at the infrared channels of the InfraRed Atmospheric Sounder(IRAS) and obtain the reference calibration coefficients so to offer support to the error analysis of the retrieval products,the ground calibration of satellite onboard instruments is a prerequisite task before launching.Based on the correlation of accepted radiance and output digital counts and the lab vacuum calibration experiment data of IRAS,the relation between radiance and output digital cou... |
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| Keywords: | radiometic calibration atmospheric infrared spectrometer meteorological satellite |
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