地物光谱反射率野外测量实验方案改进

针对现有地物光谱反射率野外测量实验方案的不足,提出了地物光谱反射率的各向异性测量、不同环境条件的对比测量、不同时相的对比测量以及地物光谱反射率图像模拟四项实验改进方案。利用ISI921VF-128野外地物光谱辐射计和ArcG IS、ERDAS软件进行了实例测量与验证,揭示了真实地物光谱反射率的特征,模拟生成了"图谱合一"的地物光谱反射率图像,提高了实验教学质量。

Study on improving experimentation scheme for field spectrometry of ground features

Because of the shortage of the existing experimentation scheme for field spectrometry of ground features,this paper put forward four improved experimentation schemes which comprise of anisotropic spectrometry,contrastive spectrometry with different conditions and different seasons,and image simulation with spectral reflective ratio data of ground features.Using ISI921VF-128 field features spectroradiometer and ArcGIS,ERDAS softwares,the author made sample measurement and validation.The results showed the characteristics of real features spectral reflective ratio and the simulated image of ground features spectral reflective ratio with spectral reflective curves.By the improved schemes,the teaching qualities of experimentation were highly increased.