CCD卫星相机时间序列定标:以CBERS02B为例  

Time-series Calibration for CCD Camera:Taking CBERS02B Satellite as an Example

作　　者：高海亮[1,2,3] 顾行发[1,3] 余涛[1,3] 李小英[1,3] 巩慧[1,2,3] 李家国[1,2,3] 

机构地区：[1]中国科学院遥感应用研究所遥感科学国家重点实验室,北京100101 [2]中国科学院研究生院,北京100039 [3]国家航天局航天遥感论证中心,北京100101

出　　处：《测绘学报》2011年第2期180-187,193,共9页Acta Geodaetica et Cartographica Sinica

基　　金：国际科技合作项目(2008DFA21540);国防科技工业民用专项科研技术研究项目(07K00100KJ)

摘　　要：采用沙漠场景法、稳定目标法和交叉定标法对CBERS02B星的CCD相机开展时间序列定标,分别得到CCD相机2007—2008年期间三种方法对应的定标系数,并同CBERS02B卫星官方提供的定标系数进行比对。结果表明,三种方法得到的定标系数其误差均小于10%,不同方法的结果具有较好的一致性。最后,分析总结各种时间序列定标方法的优缺点,为今后开展类似卫星的时间序列定标提供参考。The sensor on satellite is usually attenuated because of the intense ultraviolet radiance and cold space environment at the top of atmosphere.Three methods had been used to calibrate the CBERS02B CCD Camera in time series,which were desert sense calibration method,pseudo-invariance target calibration method and cross-calibration method,and the CBERS02B CCD calibration coefficients of three methods during 2007-2008 had been calculated.The relative differences of three methods＇ calibration coefficients were less than 10%.Further more,CBERS02B official calibration coefficient was used to validate the precision of three methods＇ calibration coefficients and the results were very ideal.In the end,the advantage and disadvantage of time series calibration method were analyzed,which would be useful for other similar satellites in future.

关 键 词：时间序列定标 CBERS02B/CCD相机 真实性检验 沙漠场景法 稳定目标法 交叉定标法 

分 类 号：TP722.4[自动化与计算机技术—检测技术与自动化装置]