CBERS-02 CCD和SPOT-4 HRVIR1两个传感器的敦煌场地在轨绝对辐射定标及对比分析

郭建宁; 闵祥军; 傅俏燕; 李杏朝; 潘志强; 冯春; 郭毅; 黄世存; 李启明; 汤伟平

doi:10.11834/jrs.20060592

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CBERS-02 CCD和SPOT-4 HRVIR1两个传感器的敦煌场地在轨绝对辐射定标及对比分析
The In-flight Absolute Calibrations for CBERS-02 CCD and SPOT-4 HRVIR1 Sensors at Dunhuang Test Site and the Comparison based on Their Coefficients
2006年第5期页码：624-629
纸质出版：2006
DOI： 10.11834/jrs.20060592
稿件说明：

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[1]郭建宁,闵祥军,傅俏燕,李杏朝,潘志强,冯春,郭毅,黄世存,李启明,汤伟平.CBERS-02 CCD和SPOT-4 HRVIR1两个传感器的敦煌场地在轨绝对辐射定标及对比分析[J].遥感学报,2006(05):624-629. DOI： 10.11834/jrs.20060592.

GUO Jian-ning~1, MIN Xiang-jun~1, FU Qiao-yan~1, et al. The In-flight Absolute Calibrations for CBERS-02 CCD and SPOT-4 HRVIR1 Sensors at Dunhuang Test Site and the Comparison based on Their Coefficients[J]. Journal of Remote Sensing, 2006, (5): 624-629. DOI： 10.11834/jrs.20060592.

摘要

中国资源卫星应用中心于2005年8月

利用敦煌场地分别对CBERS-02 CCD和SPOT-4 HRVIR1两个传感器进行在轨绝对辐射定标。本文对此次地面同步测量数据进行了处理分析

基于反射率法计算出了CBERS-02CCD和SPOT-4 HRVIR1两个传感器各波段的定标系数。其中

SPOT-4 HRVIR1的定标结果与法国官方8月份提供的定标系数相比

差异在6%内

满足法方对绝对辐射定标精度的要求。此外

应用定标系数分别将两个传感器的图像数据反演成地表反射率图像

对它们进行了对比分析。

Abstract

The In-flight absolute calibrations were performed for CBERS-02 CCD and SPOT- 4 HRVIR1 sensors by China Center for Resources Satellite Data and Applications（CRESDA） on August

2005 at Dunhuang test site.The absolute calibration coefficients were obtained for different bands of the two sensors using the method based on reflectance and the data processing and analyses for the simultaneous ground-based measurements.Meanwhile

the relative differences of calibration coefficients were small within and 6% compared with the results provided by France officialy in pulolished data August for SPOT- 4 HRVIR1 sensor.It satisfied the calibration error requirements by France side.The comparison and analysis were completed by using the coefficients of two sensors respectively to convert their original images to target reflectance images.