Combined radiometric calibration of ground-based large-aperture infrared photoelectric systems

	Combined radiometric calibration of ground-based large-aperture infrared photoelectric systems
	Liu, J.-C.; H.-W. Li; J.-L. Wang; L.-M. Yin; H.-Z. Li and J.-Y. Zhao
	2017
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	25 期号:10
摘要	When infrared standard stars are used in radiation calibration for a ground-based large-aperture infrared photoelectric system, it can not determine the radiance responsivity of each pixel and shows a poor adaptability for non-uniformity of the system. To solve this problems, a combined radiometric calibration method based on infrared standard stars and the small-aperture blackbody was proposed. The infrared standard stars were taken as an outer reference source to calibrate the radiance responsivity of the total optics,and the blackbody was taken as the inner reference source to calibrate the radiance responsivity of the partial optics. Finally, the transmittance of the front optics was calculated based on the inner and outer calibration results, and the radiance responsivity of the total optics was calibrated in pixel levels. Several experiments were performed to inverse the illuminance of the infrared stars. The results show that the maximum relative inversion error of the proposed method is 15.89% and that from infrared standard star calibration is 15.92%, which means that the proposed method keeps more accurate than that of the infrared standard star method. Moreover, the radiance responsivity of the total optics corresponding to each pixel is calibrated, and the results indicate that the proposed method overcomes the interference of system non-uniformity, improves the utilization ratio of the focal plane array and makes up the application defect of standard infrared stars. 2017, Science 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/181722/59074
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. Combined radiometric calibration of ground-based large-aperture infrared photoelectric systems[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2017,25(10).
APA	Liu, J.-C.,H.-W. Li,J.-L. Wang,L.-M. Yin,&H.-Z. Li and J.-Y. Zhao.(2017).Combined radiometric calibration of ground-based large-aperture infrared photoelectric systems.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,25(10).
MLA	Liu, J.-C.,et al."Combined radiometric calibration of ground-based large-aperture infrared photoelectric systems".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 25.10(2017).

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