A new approach for temperature and emissivity separation

被引：18

作者：

Gu, D

Gillespie, AR

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] Univ Washington, Dept Geol Sci, Seattle, WA 98195 USA

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 2000年 / 21卷 / 10期

关键词：

D O I：

10.1080/01431160050021358

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

A Taylor expansion can be used to linearize the Planck function that governs the emission from a material at a given temperature. Such a linearization is more accurate than using Wien's approximation. This approach can be used to improve the accuracy of those logarithms that currently utilize Wien's approximation, such as the alpha residual and alpha emissivity techniques.

引用

页码：2127 / 2132

页数：6

共 4 条

[1] A temperature and emissivity separation algorithm for Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images [J].