High-efficiency non-uniformity correction for wide dynamic linear infrared radiometry system

	High-efficiency non-uniformity correction for wide dynamic linear infrared radiometry system
	Li, Z.; Y. Yu; Q. J. Tian; S. T. Chang; F. Y. He; Y. H. Yin and Y. F. Qiao
	2017
发表期刊	Infrared Physics & Technology
卷号	85
摘要	Several different integration times are always set for a wide dynamic linear and continuous variable integration time infrared radiometry system, therefore, traditional calibration-based non-uniformity correction (NUC) are usually conducted one by one, and furthermore, several calibration sources required, consequently makes calibration and process of NUC time-consuming. In this paper, the difference of NUC coefficients between different integration times have been discussed, and then a novel NUC method called high-efficiency NUC, which combines the traditional calibration-based non-uniformity correction, has been proposed. It obtains the correction coefficients of all integration times in whole linear dynamic rangesonly by recording three different images of a standard blackbody. Firstly, mathematical procedure of the proposed non-uniformity correction method is validated and then its performance is demonstrated by a 400 mm diameter ground-based infrared radiometry system. Experimental results show that the mean value of Normalized Root Mean Square (NRMS) is reduced from 3.78% to 0.24% by the proposed method. In addition, the results at 4 ms and 70 degrees C prove that this method has a higher accuracy compared with traditional calibration-based NUC. In the meantime, at other integration time and temperature there is still a good correction effect. Moreover, it greatly reduces the number of correction time and temperature sampling point, and is characterized by good real-time performance and suitable for field measurement. (C) 2017 Published by Elsevier B.V.
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59038
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, Z.,Y. Yu,Q. J. Tian,et al. High-efficiency non-uniformity correction for wide dynamic linear infrared radiometry system[J]. Infrared Physics & Technology,2017,85.
APA	Li, Z.,Y. Yu,Q. J. Tian,S. T. Chang,F. Y. He,&Y. H. Yin and Y. F. Qiao.(2017).High-efficiency non-uniformity correction for wide dynamic linear infrared radiometry system.Infrared Physics & Technology,85.
MLA	Li, Z.,et al."High-efficiency non-uniformity correction for wide dynamic linear infrared radiometry system".Infrared Physics & Technology 85(2017).

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