首页 >  2000, Vol. 4, Issue (s1) : 8-15

摘要

全文摘要次数: 4054 全文下载次数: 51
引用本文:

DOI:

10.11834/jrs.2000S102

收稿日期:

1999-12-15

修改日期:

2000-08-10

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新几何光学核的验证以及用核驱动模型反演地表反照率(之二)
1.北京师范大学遥感与地理信息系统研究中心,北京100875;2.波士顿大学遥感中心,Boston Univ. USA;3.中国科学院南京地理与湖泊研究所,江苏南京 210008;4.中国科学院遥感应用研究所,北京100101
摘要:

先验知识是解决反演中信息量不足问题的关键,该文利用地面测量数据的反演结果建立了先验知识库,并用最简化的算法把步验知识应用于AMBRALS反演。先验知识在AMBRALS反演中起的作用,一是判断反演结果的置信度,二是检测和平滑噪声,三是方向采样不足情况下获取合理结果。试验的结果表明,虽然只使用了很粗糙的先验知识,但己经有了良好的效果。

Validation of a New GO Kernel and Inversion of Land Surface Albedo by Kernel.Driven Model (2)
Abstract:

A priori information is crucial to solve ill-posed inversion problems. A priori knowledge database is set up from ground measurement of surface BRDF, which can supply a priori knowledge to the inversion of kernel-driven model and subsequently derive surface albedo.The a priori information plays three roles in inversion; to judge the credibility of inversion result,to detect and Smooth noise in data, and to get a reasonable result when there are

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