Inversion of emissivity spectrum and temperature in the TIR waveband based on the Maximum Entropy

	Inversion of emissivity spectrum and temperature in the TIR waveband based on the Maximum Entropy
	Liu, J. C.; H. W. Li; J. L. Wang; H. Z. Li; L. M. Yin and Z. D. Zhang
	2015
发表期刊	Infrared Physics & Technology
卷号	72 页码:179-190
摘要	In the TIR (Thermal Infrared) waveband, solving the target emissivity spectrum and temperature leads to an ill-posed problem that the number of unknown parameters is more than the number of available measurements. Generally, the approaches developed for solving this kind of problems are called by a joint name, the TES (Temperature and Emissivity Separation) algorithm. Regarded as a promotion of the MaxEnTES (Maximum Entropy TES) algorithm proposed by A. Barducci, a novel method called the New MaxEnTES algorithm is presented in this paper. The Maximum Entropy estimation is utilized to be the basic framework of each preceding algorithm. What makes the two algorithms different is that the Alpha Spectrum derived by ADE (Alpha Derived Emissivity method) or the Beta Spectrum derived by NEM (Normalized Emissivity Method) is considered as a priori information to be added in the New MaxEnTES algorithm. As a result, the New MaxEnTES algorithm keeps a simpler mathematical formalism. Without any doubt, the New MaxEnTES algorithm provides a faster computation for large volumes of data (i.e. hyperspectral images of the Earth). Some numerical simulations have been conducted to assess the performance of the New MaxEnTES algorithm. The results show that, the New MaxEnTES algorithm carefully reconstructs the target emissivity spectrum and temperature, and keeps the same orders of magnitude on accuracy with the MaxEnTES algorithm. What's more, it also keeps good robust stabilization towards noise. (c) 2015 Elsevier B.V. All rights reserved.
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55328
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu, J. C.,H. W. Li,J. L. Wang,et al. Inversion of emissivity spectrum and temperature in the TIR waveband based on the Maximum Entropy[J]. Infrared Physics & Technology,2015,72:179-190.
APA	Liu, J. C.,H. W. Li,J. L. Wang,H. Z. Li,&L. M. Yin and Z. D. Zhang.(2015).Inversion of emissivity spectrum and temperature in the TIR waveband based on the Maximum Entropy.Infrared Physics & Technology,72,179-190.
MLA	Liu, J. C.,et al."Inversion of emissivity spectrum and temperature in the TIR waveband based on the Maximum Entropy".Infrared Physics & Technology 72(2015):179-190.

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