国土资源遥感2017，Vol.29Issue(1)：186-191,6.DOI:10.6046/gtzyyg.2017.01.28
基于Hapke模型混合岩矿粉末反射率光谱模拟
Simulation of bi-directional reflectance on mixed minerals based on Hapke photometric model
摘要
Abstract
Hapke photometric model is a useful tool for studying the spectra of mixed minerals.However,there are still some improvable things,and domestic research still lags far behind that of foreign countries.This paper focuses on the characteristics of surface minerals through 4 groups of spectroscopic tests in laboratory,and then discusses and points out the accuracy of the Hapke photometric model when simulating the spectra of mixed minerals.The mean of root mean square errors (RMSE) of the 4 groups by using IMSA model is 0.014 4,and the mean of correlation coefficients (R) is 0.994 7.The mean of RMSE of the 4 groups by using AMSA model is 0.008 4,and the mean of R is 0.994 4.These data suggest that IMSA model and AMSA model have a very high precision and can be a good means to simulate spectral mixture of mixed minerals.Nevertheless,the experiment results show that,when the mixed minerals contain biotite,the accuracy is not satisfactory,but the accuracy of simulation can be improved by adjusting the weight of biotite.Spectral shape of mixed minerals needs a specific analysis of compositions of the mixed mineral,for instance,a particular mineral which possesses a higher mass fraction in the mixed minerals may not play the leading role in the spectral shape,while the mineral of low reflectivity may play a more important role.关键词
Hapke模型/混合光谱/反射光谱/模拟光谱/矿物Key words
Hapke model/mixed spectra/reflectance spectra/simulation spectra/mineral分类
信息技术与安全科学引用本文复制引用
王喆,赵哲,闫柏琨,杨苏明..基于Hapke模型混合岩矿粉末反射率光谱模拟[J].国土资源遥感,2017,29(1):186-191,6.基金项目
中国地质调查局地质调查项目“高光谱地质调查技术方法研究”(编号:12120115040801)资助. （编号:12120115040801）
