基于多个稳定目标的吉林一号光谱02卫星多光谱成像仪的在轨绝对辐射定标
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杨松,黄帅,白杨,贾益,巴倩倩,田世强,钟兴
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On-orbit Absolute Radiometric Calibration for the Multi-Spectral Imager of Jilin-1/GP02 based on Multiple Stable Targets
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Song YANG,Shuai HUANG,Yang BAI,Yi JIA,Qianqian BA,Shiqiang TIAN,Xing ZHONG
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表5 重新标定的观测辐亮度与包头场地标定辐亮度对比
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Table 5 The comparison between GP02’s re-calibrationed measured radiance and simulated radiance of Baotou Site
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| 波段 | 多点法标定观测辐亮度 /Wm-2μm-1sr-1 | 单点法标定观测辐亮度 /Wm-2μm-1sr-1 | 场地定标辐亮度 /Wm-2μm-1sr-1 | 多点法 相对差异 | 单点法 相对差异 |
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| B0 | 64.64 | 66.60 | 67.90 | -4.80% | -1.93% | | B1 | 47.75 | 51.83 | 52.22 | -8.55% | -0.75% | | B2 | 60.35 | 58.48 | 58.70 | 2.82% | -0.38% | | B3 | 66.35 | 63.95 | 64.56 | 2.77% | -0.94% | | B4 | 65.78 | 68.87 | 68.33 | -3.73% | 0.79% | | B5 | 74.00 | 75.98 | 74.59 | -0.79% | 1.87% | | B6 | 60.16 | 62.04 | 58.07 | 3.60% | 6.84% | | B7 | 67.10 | 66.33 | 63.61 | 5.48% | 4.27% | | B8 | 70.29 | 73.35 | 74.86 | -6.11% | -2.02% | | B9 | 73.95 | 75.84 | 74.87 | -1.22% | 1.29% | | B10 | 70.03 | 71.94 | 71.96 | -2.68% | -0.02% | | B11 | 67.29 | 69.97 | 71.53 | -5.93% | -2.17% | | B12 | 63.80 | 66.77 | 67.20 | -5.06% | -0.64% | | B13 | 55.61 | 58.42 | 54.95 | 1.21% | 6.31% | | B14 | 74.77 | 77.86 | 76.06 | -1.69% | 2.37% | | B15 | 72.71 | 76.18 | 73.92 | -1.63% | 3.06% | | B16 | 65.46 | 68.99 | 65.72 | -0.39% | 4.97% | | B17 | 42.59 | 47.98 | 52.90 | -19.48% | -9.31% | | B18 | 23.62 | 28.25 | 31.19 | -24.27% | -9.43% | | B19 | 41.13 | 46.75 | 48.82 | -15.76% | -4.25% |
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