月表虹湾地区辉石及橄榄石含量反演

发布时间：2018-04-02 19:54

本文选题：M　切入点：MGM　出处：《中国科学:物理学力学天文学》2013年11期

【摘要】：月表成分定量分布是月球探测中重要的一个科学问题.为了建立月表虹湾地区辉石与橄榄石的含量反演模型,本文在深入分析理解月表主要矿物的光谱特性的基础上,首先使用LSCC实测矿物数据,根据辉石、橄榄石在300 2600 nm波谱范围的吸收特征分布,通过MGM模型计算19个采样点的光谱数据的5个吸收特征,每个吸收特征有吸收中心(Center)、吸收宽度(FWHM)、吸收强度(Strength)这3个吸收特征参数,利用多元回归分析建立矿物反演模型.由于缺乏月表实测数据,本文引入M3高光谱数据利用Hapke辐射传输模型制作模拟混合矿物光谱对模型性能进行检验.最后,将反演模型应用于嫦娥三号月球车的首选着陆点—虹湾地区,得到其矿物含量分布图.实验表明利用MGM模型拟合分析的方法进行高光谱遥感矿物识别是一种可行的研究方法.
[Abstract]:The quantitative distribution of lunar surface components is an important scientific problem in lunar exploration.In order to establish the inversion model of pyroxene and olivine content in the Hongwan area of the moon surface, based on the in-depth analysis and understanding of the spectral characteristics of the main minerals on the surface of the moon, this paper first uses the LSCC measured mineral data, according to the pyroxene,The absorption characteristic distribution of olivine in the 2600 nm spectrum range is calculated by MGM model. The absorption characteristics of 19 sampling points are calculated by MGM model. Each absorption characteristic has three absorption characteristic parameters, I. e., absorption center, absorption width, absorption intensity and absorption intensity.The mineral inversion model was established by multivariate regression analysis.Due to the lack of measured monthly data, this paper introduces M3 hyperspectral data to test the performance of the model by using Hapke radiation transfer model to make simulated mixed mineral spectra.Finally, the inversion model is applied to the Hongwan area, the preferred landing point for the Chang 'e-3 rover, and the mineral content distribution map is obtained.The experiment shows that the method of fitting and analyzing by MGM model is a feasible method to identify hyperspectral remote sensing minerals.
【作者单位】：中国地质大学(武汉)信息工程学院;中国地质大学(武汉)地球科学学院;
【基金】：中央高校基本科研业务费专项资金资助项目(编号:CUGL130261)
【分类号】：P184

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