星载铝漫反射板光谱特性测量研究  

Study on the Spectral Features of Space-Borne Aluminum Diffuser

作　　者：常振 赵敏杰[1] 王煜 司福祺 周海金 刘文清 CHANG Zhen;ZHAO Min-jie;WANG Yu;SI Fu-qi;ZHOU Hai-jin;LIU Wen-qing(Hefei Institutes of Physics Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院安徽光学精密机械研究所,安徽合肥230031 [2]中国科学技术大学,安徽合肥230026

出　　处：《光谱学与光谱分析》2018年第4期997-1000,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金青年科学基金项目(41605017);中国科学院合肥研究院院长基金项目(YZJJ201605)资助

摘　　要：星载成像光谱仪在轨通过漫反射板获取太阳参考谱时,漫反射板自身光谱结构会引入到太阳参考谱中,影响气体的反演精度。基于此,分析了漫反射板光谱结构产生原理,并在实验室完成了铝漫反射板光谱特性的测量,得到了铝漫反射板在观测角度[15°,40°]内的光谱结构。由结果可知,在波段450~600nm,SFA基本保持不变,大小为0.2%~0.6%;在波段600~750nm,SFA逐渐增大,SFA为0.3%~1.6%。对光谱结构的降低进行了讨论,通过对漫反射板的光谱进行平滑校正,可将光谱结构降低约76%。Imaging spectrometer uses a space-borne diffuser to obtain solar reference spectrum.The spectral features of space-borne diffuser will be introduced to the solar reference spectrum.The spectral features that interferes the gas absor ption structure influence the inversion precision of gases.The causes of spect ral structure of aluminum diffuser is analyzed,and the spectral structures in the observation angle[15°,40°]are measured in laboratory.The results show that the spectral structuse increases with wavelength:450~600 nm,the spectral structure is 0.2%~0.6%;600~750 nm,the spectral structure is 0.3%~1.6%.Spectral structure reduction method is discussed.The spectral structure can be reduced about 76%by smoothing the spectrum of aluminum diffuser.

关 键 词：星载铝漫反射板 光谱结构 气体反演 光谱分析 

分 类 号：O433.4[机械工程—光学工程]