成像干涉光谱仪信噪比分析公式

成像干涉光谱仪信噪比分析公式

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Geography SubjectGIScience & Remote SensingGround Feature Spectrum

Detailed Description

成像干涉光谱仪信噪比分析公式

   1)地物反射的波长为λ的太阳辐射亮度模型:

 

式中,E(λ),ρ(λ)分别为辐照度和反射率。

2)光谱仪入射狭缝上瞬时视场接收的λ波长的通量模型:

式中,f为焦距;D为孔径;τ0(λ)为光学系统光谱透过率;τa(λ)为沿目标-遥感器路径的大气光谱透过率;a(λ)为目标-遥感器路经大气散射的上行光谱辐亮度;d1d2分别为探测器D的阵元宽度和高度。

   2)信噪比模型:

式中,RTfTc,RsTs,τa,τ0,τf和ρ均为常数;Δλ,λL和λH分别为谱域带宽、波长下限和波长上限;AD为探测器阵元的光敏面积,ηe为信号过程因子;N为干涉图采样点数,D*(λ)为光谱比探测率。

参考文献

    金锡哲,向阳,禹秉熙:成像干涉光谱仪信噪比分析。遥感学报,200043

How to cite

《资源环境数学模型手册》 (2018). 成像干涉光谱仪信噪比分析公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/0fb04c78-1acb-437e-9d63-280ae42b50ac
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Contributor

contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feed back

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