【作者】 陈帅帅； 钮新华； 雷松涛；

【Author】 Chen Shuaishuai;Niu Xinhua;Lei Songtao;Shanghai Institute of Technical Physics,Chinese Academy of Sciences;Key Laboratory of Infrared Detecting & Imaging Technology,Chinese Academy of Science;

【机构】 中国科学院上海技术物理研究所； 中国科学院红外探测与成像技术重点实验室；

【摘要】 目的:在轨辐射定标是遥感器实现高定量化探测的重要手段,对此开展风云三号中分辨率光谱成像仪(MERSI)新一代可见光近红外星上定标方案设计和分析。方法:根据风云三号光谱成像仪的工作模式和轨道特点,采用漫反射板加漫反射板稳定性监视器系统方案,以太阳光作为长期稳定的参考光源,对定标器的技术参数和结构进行分析和设计。结果:设计完成的新一代星上定标器能够实现对成像仪全年、全口径、全视场的在轨辐射定标,满足成像仪对辐射定标的要求,定标精度优于3%。结论:新一代星上定标器具有结构简单、性能可靠等特点,是可实现的在轨定标方案,能够满足成像仪对星上定标器的性能要求。更多还原

【Abstract】 Purpose:Onboard radiometric calibration is an important part of the calibration in 风云三号 Moderate Resolution Spectroradiometry Imager.So,the frame design and analysis of the new generational visible light onboard calibration system need to be carried on.Method:In consideration of the working mode and orbit of FY-3 MERSI,we choose the system structure that contains sola diffuser and solar diffuser stability monitor.This system takes sun as a long term stable reference light source.The structure and parameters of the system are analyzed and designed.Result:The finished designed new generational onboard calibration system is able to complete the imager’s onboard radiometric calibration annually for full aperture and FOV,which meets the need of imager’s radiometric calibration.Conclusion:New generational onboard calibration system has a simple structure but reliable function.And it is a realizable onboard calibration proposal,which can meet the capability need of the onboard calibration system.更多还原