中国海洋水色卫星星地一体化定标实践与应用  

Practice and Application of Integrated Satellite-Earth Calibration forChina’s Ocean Color Satellite

作　　者：陈树果 刘召伟 李思聪 马超飞[3] 王俊帏 胡仕贤 宋庆君[3] 彭海龙[3] 靖吉磊 徐彭梅[4] CHEN Shuguo;LIU Zhaowei;LI Sicong;MA Chaofei;WANG Junwei;HU Shixian;SONG Qingjun;PENG Hailong;JING Jilei;XU Pengmei(College of Marine Technology,Ocean University of China,Qingdao 266100,China;Sanya Ocean Institute,Ocean University of China,Sanya 572024,China;National Satellite Ocean Application Service,Beijing 100081,China;Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China)

机构地区：[1]中国海洋大学海洋技术学院,青岛266100 [2]中国海洋大学三亚海洋研究院,三亚572024 [3]国家卫星海洋应用中心,北京100081 [4]北京空间机电研究所,北京100094

出　　处：《航天返回与遥感》2025年第2期96-110,共15页Spacecraft Recovery & Remote Sensing

基　　金：国家自然科学基金优秀青年科学基金项目(T2222010);民用航天技术预先研究项目(D010202)。

摘　　要：星地一体化定标通过星上太阳定标对海洋水色卫星传感器进行初步校正,并利用系统替代定标进一步减小太阳定标和大气校正过程中的不确定度。文章详细介绍了星地一体化定标中的方法流程、发现的关键问题与针对性解决方法,包括对定标过程中太阳beta角周期性影响、漫反射板各向异性衰减影响的校正等,并通过在中国海洋水色卫星上的实践和应用,对星地一体化定标精度和数据产品的一致性进行了分析与验证。结果显示,中国海洋水色卫星的星地一体化定标精度可以满足研究需求,数据产品与国际主流卫星具有较高的一致性。通过星地一体化定标方法,国产海洋水色卫星能够为海洋监测和环境保护等提供准确的观测信息,并为独立生成气候数据记录提供坚实的基础。The integrated satellite-earth calibration performs preliminary calibration of ocean color satellite sensors through onboard solar calibration,and further reduces the uncertainty in the solar calibration and atmospheric correction processes by using system vicarious calibration.This article provides a detailed introduction to the methods and processes of integrated satellite-earth calibration,key issues identified and targeted solutions.It covers aspects such as the periodic influence of the solar beta angle during calibration and the correction of the anisotropic degradation of the solar diffuser.Through practical application on China's ocean color satellites,the accuracy of integrated satellite-earth calibration and the consistency of data products have been analyzed and validated.The results show that the integrated satellite-earth calibration accuracy of China’s ocean color satellite meets research requirements,and the data products exhibit high consistency with international mainstream satellites.Through high-precision integrated satellite-earth calibration,the China’s ocean color satellite can provide accurate observational information for ocean monitoring and environmental protection,and provide a solid foundation for independently generating climate data records.

关 键 词：星地一体化定标 星上太阳定标 系统替代定标 在轨辐射定标 海洋水色卫星 

分 类 号：V19[航空宇航科学与技术—人机与环境工程] TP79[自动化与计算机技术—检测技术与自动化装置]