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Measurement Method of Infrared Radiometric Characteristics for High-Temperature Small Targets
Tian, Q.; Z. Li; S. Chang; F. He and Y. Qiao
2017
发表期刊Guangxue Xuebao/Acta Optica Sinica
卷号37期号:10
摘要When the target is at high temperature and far from the imaging system, its image on the detector array occupies dozens of pixels and the output grayscale is easy to saturate. As a result, typical process methods for point-source target and extended-source target are not applicable any more. To overcome these problems, a measurement method is proposed measure high-temperature infrared small targets, and the effectiveness of the proposed method has been validated by experiments in the outfield. First of all, the radiometric calibration formula of measurement system in high temperature range is built, and the influence of the collimator transmittance on the calibration model is corrected. Then, according to the fact that the target energy diffuses dozens of pixels but the total energy that reaches the detector array remains unchanged, a measurement method is proposed to measure the characteristics of high-temperature infrared small targets. Finally, a 600 mm infrared radiation characteristic measurement system is employed to measure the radiation of high-temperature infrared small target in the outfield. Experimental results indicate that, in consideration of the atmospheric transmittance and path radiance, the proposed method can achieve high-accuracy measurement for remote high-temperature infrared small targets, and the effectiveness of the proposed method has been verified. 2017, Chinese Lasers Press. All right reserved.
收录类别ei
语种中文
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/59226
专题中科院长春光机所知识产出
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GB/T 7714
Tian, Q.,Z. Li,S. Chang,et al. Measurement Method of Infrared Radiometric Characteristics for High-Temperature Small Targets[J]. Guangxue Xuebao/Acta Optica Sinica,2017,37(10).
APA Tian, Q.,Z. Li,S. Chang,&F. He and Y. Qiao.(2017).Measurement Method of Infrared Radiometric Characteristics for High-Temperature Small Targets.Guangxue Xuebao/Acta Optica Sinica,37(10).
MLA Tian, Q.,et al."Measurement Method of Infrared Radiometric Characteristics for High-Temperature Small Targets".Guangxue Xuebao/Acta Optica Sinica 37.10(2017).
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