絕對輻射定標(biāo)系數(shù)

國產(chǎn)陸地觀測衛(wèi)星2013年外場絕對輻射定標(biāo)系數(shù)1、 資源三號（ZY-3）衛(wèi)星絕對輻射定標(biāo)系數(shù)見表2表2ZY-3衛(wèi)星在軌絕對輻射定標(biāo)系數(shù)衛(wèi)星載荷波段光譜范圍^m）Gain資源三號多光譜相機(jī)Band-i0.45?0.520.255iBand-20.52?0.590.2353Band-30.63?0.690.i944Band-40.77?0.890.2i07注：利用絕對定標(biāo)系數(shù)將ZY-3衛(wèi)星CCD圖像DN值轉(zhuǎn)換為輻亮度圖像的公式為:L（人）=Gain-DN+Biasee式中：式中L（X）為轉(zhuǎn)換后輻亮度，單位為W-m-2.sr-1-^m-i，DN為衛(wèi)星載荷觀測值；Gain為定標(biāo)斜率，單位為W-m-2.sr-i?pm-i,Bias為定標(biāo)截距，單位為W?m-2?sr-i?pm-i。2、 資源一號02C（ZY-102C）衛(wèi)星絕對輻射定標(biāo)系數(shù)見表3表3ZY-102C星CCD相機(jī)的定標(biāo)系數(shù)衛(wèi)星載荷波段號GainBiasZY-1-02C-PMSBand1(P)0.6208-13.826Band20.7397-22.246Band30.6904-15.438Band40.6369-14.201注：利用絕對定標(biāo)系數(shù)將ZY-102C衛(wèi)星CCD圖像DN值轉(zhuǎn)換為輻亮度圖像的公式為:L（X）=Gain-DN+Bias式中：式中L。（七）為轉(zhuǎn)換后輻亮度，單位為W?m-2?si?頃-1，DN為衛(wèi)星載荷觀測值；Gain為定標(biāo)斜率，單位為W-m-2.sr-1-^m-i,Bias為定標(biāo)截距，單位為W-m-2?sr-1-pm-1。表4HJ-1A/B星CCD相機(jī)（增益2）的定標(biāo)系數(shù)衛(wèi)星載荷波段號GainBiasHJ-iA-CCDiBandii.2944i3.4450Band2i.28786.7i72Band30.9875-4.5i3iBand40.9822-i.7i40HJ-iA-CCD2Bandii.ii85-9.94i4Band2i.2049-i6.773Band30.8384-2i.9i5Band40.9257-27.660HJ-iB-CCDiBandi0.983842.6i9Band20.998335.264Band30.752822.i92Band40.7538ii.2i4HJ-iB-CCD2Bandii.06494.4i7Band2i.i644-5.503Band30.8507-6.7944Band40.8436-2.927i注：利用絕對定標(biāo)系數(shù)將HJ-1A/B衛(wèi)星CCD圖像DN值轉(zhuǎn)換為輻亮度圖像的公式為：L（X）=Gain-DN+Bias式中：式中L（X）為轉(zhuǎn)換后輻亮度，單位為W-m-2-sr-1-^m-i，DN為衛(wèi)星載荷觀測值；Gain為定標(biāo)