2010年hj-1ab星绝对辐射定标系数

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1、2010年HJ-1A/B星绝对辐射定标系数2010年7月到8月期间中国资源卫星应用中心于敦煌绝对辐射校正场和青海湖辐射校正场开展了HJ-1A/B星的外场定标试验，成功获取所需试验数据，并于2010年9月安排了内蒙古真实性检验试验，经多方检验给出定标系数。现将初步定标结果进行公布，希望广大用户积极使用，开展定量化应用示范研究，以对我们给出的系数进行深入检验。同时，欢迎广大用户提出宝贵意见和建议，以便中心进一步改进工作。1、HJ-1A/B星绝对辐射定标系数见表1、表2、表3和表4表1HJ-1A/B星CCD相机（增益2）

2、的定标系数卫星参量波段Band1（480nm）Band2（565nm）Band3（660nm）Band4（830nm）HJ-1A-CCD1A（DN/(W×m-2×sr-1×mm-1)]）0.77680.77961.03121.0049L07.32506.07373.61231.9028HJ-1A-CCD2A（DN/(W×m-2×sr-1×mm-1)]）0.78920.78311.16351.1995L04.63444.09823.73600.7385HJ-1B-CCD1A（DN/(W×m-2×sr-1×mm-1)]

3、）0.76100.77271.08271.1181L03.00894.44873.21442.5609HJ-1B-CCD2A（DN/(W×m-2×sr-1×mm-1)]）0.83520.79251.13161.0578L02.22194.06835.25376.3497表2HJ-1B星IRS相机5、6波段的定标系数卫星参量波段IRS-Band5IRS-Band6HJ-1B-IRSA（DN/(W×m-2×sr-1×mm-1)]）3.773716.8171表3HJ-1B星IRS相机Band8的定标系数卫星参量波段IRS

4、-Band8HJ-1B-IRSg（DN/(W×m-2×sr-1×mm-1)]）60.713b-25.441表4HJ-1A星HSI成像仪（增益2）波段的定标系数BandBandBandBandBand10.45377241.55512472.46522704.42641936.4351220.48441251.66691482.45831714.57646946.6803530.49519261.80523492.56250724.63405956.5988240.47639271.71935502.76680734

5、.67808966.4496250.49915281.79485512.80064745.00163976.5549360.56707291.85051522.80434755.99053987.7951470.63639301.86661532.83825765.32726996.9732080.70326311.84427542.85496775.304191006.9479790.77201321.99937552.89652785.434721016.34085100.83750331.92637563.0

6、6668795.292231026.25686110.93235342.08493573.32148805.231231036.54080120.96256352.00071583.28770817.091721046.09424131.12874362.00084593.30065826.446721056.26734141.11701372.16316603.54754836.928551066.09946151.11182382.16011613.59538845.959021076.01769161.204

7、20392.16813623.63647855.960121085.70588171.13467402.25769633.61707865.869021096.91498181.22270412.27441643.73593875.786081106.62313191.34608422.33694653.95688885.469211116.94084201.45171432.38806664.157498914.462481125.39716211.46966442.45547674.22923906.63571

8、1137.31300221.52323452.35978684.34204916.136141149.92986231.55102462.39837694.24103926.258031157.863422、利用绝对定标系数将CCD图像DN值转换为辐亮度图像的公式为：式中为绝对定标系数增益，为绝对定标系数偏移量，转换后辐亮度单位为W×m-2×sr-1×mm-